Truss, floor slab and building component

Abstract

The invention provides a truss, a floor slab and a building component. The truss comprises an upper chord structure extending in a first direction; the web is in a wave shape, the overall length of the web extends in the first direction, the web is provided with a plurality of top inflection lines which are sequentially distributed in the first direction, and the top inflection lines are wrapped in the upper chord structure; the top inflection line extends in the second direction perpendicular to the first direction and is perpendicular to the edge lines of the two side wall faces of the web in the second direction. The machining difficulty of the upper chord structure and the web is reduced.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to a truss, a floor slab and a building component. Background Art

[0002] Truss composite plates are a large-volume and widely used component in prefabricated buildings. Currently, the truss upper chord and web members of truss composite plates are welded or riveted, which has the problems of difficulty in welding or riveting the upper chord and web members, high energy consumption, smoke pollution, and high investment in energy-saving and environmental protection supporting facilities. Summary of the invention

[0003] In view of the shortcomings of the existing methods, the present application proposes a truss, a floor and a building component to solve the technical problems of the difficulty in welding or riveting the upper chord and the web of the truss, high energy consumption, and smoke pollution in the related technology, as well as the economic problem of high investment in energy-saving and environmental protection supporting facilities.

[0004] In a first aspect, an embodiment of the present application provides a truss, comprising: An upper chord structure extending along a first direction; A web, which is wavy and has an entire length extending along a first direction, wherein the web has a plurality of top inflection lines sequentially distributed along the first direction, and the plurality of top inflection lines are wrapped in an upper chord structure; The top inflection line extends along a second direction perpendicular to the first direction, and is perpendicular to edge lines of the wall surfaces on both sides of the web along the second direction.

[0005] Optionally, at least one of the following is included: The upper chord structure includes strip concrete, and a plurality of top inflection wires are anchored into the strip concrete; In the second direction, the top inflection line is centrally disposed relative to the upper chord structure; The web comprises corrugated strip steel.

[0006] Optionally, a protrusion is provided on the web; Include at least one of the following: A bulge is provided between any adjacent top inflection lines and bottom inflection lines of the web; The bulge extends along the bottom inflection line of the web toward the top inflection line; The protrusion protrudes upward relative to the web.

[0007] Optionally, a groove is provided at at least one top inflection line; Include at least one of the following: In the second direction, the groove is centrally located relative to the top inflection line; The axis of the groove extends along a first direction; At least one groove is provided corresponding to a top inflection line; In a cross section perpendicular to the first direction, the cross section of the groove is semicircular; The truss also includes a first longitudinal rib disposed in the groove.

[0008] Optionally, the truss further comprises a first longitudinal reinforcement disposed in the upper chord structure; Include at least one of the following: The first longitudinal rib extends along a first direction; At least one first longitudinal reinforcement is provided in the upper chord structure; The first longitudinal reinforcement is spaced apart from or connected to the web, or the first longitudinal reinforcement is passed through a through hole of the web.

[0009] Optionally, the truss further includes a covering member, the covering member includes a cavity with a downward opening, and the upper chord structure is arranged in the cavity of the covering member.

[0010] Optionally, at least one of the following is included: The covering member includes a channel steel or a C-shaped steel. If the covering member is a channel steel, the covering member covers the upper surface and the side surface of the upper chord structure; if the covering member is a C-shaped steel, the covering member covers the upper surface, the side surface and at least a part of the lower surface of the upper chord structure; The opening edge of the covering member is bent into the cavity and embedded in the upper chord structure; The opening edge of the covering piece is serrated or wavy, or anchor-shaped protrusions are sequentially arranged along the opening edge of the covering piece; A protrusion facing the upper chord structure is provided on the top wall and at least one of the two side walls of the covering component, and the protrusion is embedded in the upper chord structure.

[0011] Optionally, in a cross section perpendicular to the first direction, the cross-sectional shape of the upper chord structure is rectangular, trapezoidal, oblong, hexagonal or octagonal with long sides extending along the second direction.

[0012] In a second aspect, an embodiment of the present application provides a floor slab, including: Such as the trusses mentioned above; Bottom plate, connected to the web of the truss and located at the bottom inflection line of the web.

[0013] Optionally, the bottom plate includes a bottom rib group and a concrete plate, the bottom rib group is partially arranged at a plurality of bottom inflection lines of the web plate, and the concrete plate wraps the plurality of bottom inflection lines and the bottom rib group; Among them, at least one of the following is included: The concrete slab extends along a first direction; The bottom reinforcement group includes a second longitudinal reinforcement and a plurality of transverse reinforcements, the plurality of transverse reinforcements are arranged on a plurality of bottom inflection lines in a one-to-one correspondence, and the second longitudinal reinforcement is arranged on the plurality of transverse reinforcements; The bottom reinforcement group includes second longitudinal reinforcement to which prestressing force is applied.

[0014] In a third aspect, an embodiment of the present application provides a building component, including: a floor slab as described above.

[0015] Optionally, the building element comprises a staircase; The staircase includes an inclined floor and at least two steps; At least two steps cover the trusses and bottom reinforcement groups of the bottom plate exposed on the floor slab.

[0016] Optionally, the staircase comprises: A first steel bar assembly connected to the floor slab; The first concrete structure encloses the floor slab and the first reinforcement assembly.

[0017] Optionally, the building component includes at least one of the following: The first steel bar assembly includes a plurality of first steel bars and a plurality of second steel bars which are arranged on the trusses of the floor and connected to each other, the plurality of first steel bars are distributed along the length direction of the stairs and each extends along the width direction of the stairs, and the plurality of second steel bars are distributed along the width direction of the stairs and each extends along the length direction of the stairs; At least two trusses are arranged on the bottom plate of the floor slab, and the at least two trusses of the floor slab are distributed in sequence along the width direction of the floor slab, and each of the trusses extends along the length direction of the floor slab as a whole.

[0018] Optionally, the building element comprises a floor slab; The floor base plate comprises a floor plate and a weight reduction module arranged on the floor plate.

[0019] Optionally, the building component includes at least one of the following: The floor slab comprises a plurality of weight-reducing modules, and the plurality of weight-reducing modules are arrayed and distributed on the floor slab; The weight reduction module includes a weight reduction block or a stacking box; At least two trusses are arranged on the bottom plate of the floor, and the at least two trusses of the floor extend along the length direction of the floor bottom plate as a whole. The multiple weight reduction modules and the at least two trusses of the floor are alternately distributed in sequence along the width direction of the floor bottom plate.

[0020] Optionally, the building element comprises a floor; and the floor slab is used as a base plate of the floor.

[0021] Optionally, the floor comprises: A weight-reducing module is provided on the floor slab; A second steel bar assembly is arranged on the weight-reducing module and / or the floor slab; The second concrete structure encloses the weight-reducing module, the second reinforcement assembly and at least a portion of the floor slab.

[0022] Optionally, the building component includes at least one of the following: The floor slab includes a plurality of weight-reducing modules, and the plurality of weight-reducing module arrays are distributed on the bottom plate of the floor slab; The second steel bar assembly includes a third steel bar and a fourth steel bar, the third steel bar and the fourth steel bar intersect each other, and the third steel bar and the fourth steel bar are arranged on the truss and / or the bottom plate of the floor slab.

[0023] Optionally, the building component includes a span beam; the span beam includes a floor slab; The span beam member is provided with through holes, and the through holes are used for assembling fasteners.

[0024] Optionally, the span beam also includes a truss structure, which is arranged on the bottom plate of the floor and located on one side of the truss of the floor along the width direction of the span beam.

[0025] Optionally, at least two trusses are provided on the bottom plate of the floor slab, and the at least two trusses of the floor slab are distributed in sequence along the width direction of the span beam, and each of the trusses extends along the length direction of the span beam as a whole; The truss of the floor slab is provided with at least one through hole on at least one side along the width direction of the span beam; or, the truss structure as a whole extends along the length direction of the span beam, the truss structure is located between two adjacent trusses of the floor slab, and at least one through hole is provided between the truss structure and the truss of the floor slab.

[0026] Optionally, the building element comprises a composite beam; Use floor slabs as base plates for composite beams.

[0027] Optionally, the composite beam comprises: a fifth steel bar, the fifth steel bar comprises at least vertical sections located on both sides of the truss of the floor slab along the width direction of the composite beam, and the bottom is connected to the bottom plate of the floor slab; The fifth reinforcement includes at least one of the following: The fifth steel bar is U-shaped with the opening facing upward; The fifth steel bar further includes a first transverse section, both ends of which are respectively connected to the bottom ends of the vertical sections on both sides of the truss of the floor slab, and the bottom ends of the first transverse section and the vertical section are wrapped in the bottom plate of the floor slab; The number of the fifth steel bars is at least two, and the at least two fifth steel bars are distributed along the length direction of the composite beam.

[0028] Optionally, the composite beam includes: a sixth steel bar, the sixth steel bar includes at least vertical sections located on both sides of the truss of the floor slab along the width direction of the composite beam, and the bottom is connected to the bottom plate of the floor slab; The sixth reinforcement includes at least one of the following: The sixth steel bar is a ring structure; The sixth steel bar further includes a second transverse section and a third transverse section, the second transverse section and the third transverse section are respectively connected to the vertical section, and the second transverse section is located at the bottom of the vertical section, the third transverse section is located at the top of the vertical section, and the bottoms of the second transverse section and the vertical section are wrapped in the bottom plate of the floor slab; The number of the sixth steel bars is at least two, and the at least two sixth steel bars are distributed along the length direction of the composite beam.

[0029] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application include: In the embodiment of the present application, the entire length of the upper chord structure and the web plate extends along the first direction, the web plate is wavy, and has a plurality of top inflection lines that are sequentially spaced and distributed along the first direction, and the plurality of top inflection lines are wrapped in the upper chord structure, so that in the process of manufacturing the truss, the plurality of top inflection lines of the web plate can be directly anchored into the upper chord structure, eliminating the welding or riveting connection process of the upper chord rod and the web rod in the related technology. Moreover, the top inflection line extends along a second direction that is perpendicular to the upper chord structure (that is, perpendicular to the entire length of the web plate), and the extension direction of the top inflection line is perpendicular to the edge lines of the walls on both sides of the web plate along the second direction, which can reduce the difficulty of processing and assembling the upper chord structure and the web plate, and is energy-saving and environmentally friendly.

[0030] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 A side view of a specific example of a truss provided in an embodiment of the present application; Figure 2 for Figure 1 Main view of the middle truss; Figure 3 A side view of another specific example of a truss provided in an embodiment of the present application; Figure 4 for Figure 3 Main view of the middle truss; Figures 5 to 7 A side view of a truss provided in an embodiment of the present application in different embodiments (wherein the relative positions of the first longitudinal reinforcement and the web are different); Figures 8 to 10 Side views of a truss provided in an embodiment of the present application in different specific examples (wherein the cross-sectional shapes of the covering members are different); Fig.11 and Fig.12 The opening edge shape of a truss covering member provided in an embodiment of the present application (such as Fig.10 Schematic diagram of the cross section at A in different specific examples; Figures 13 to 17 A schematic diagram of the cross-sectional shape of an upper chord structure of a truss provided in an embodiment of the present application in different specific examples; Fig.18 A front view of a floor provided in an embodiment of the present application; Fig.19 A three-dimensional diagram of a specific example of a building component provided in an embodiment of the present application when the building component is a staircase; Fig. 20 A side view of a specific example of a building component provided in an embodiment of the present application when the building component is a staircase; Fig.21 A cross-sectional view of a specific example of a building component provided in an embodiment of the present application when the building component is a staircase; Fig. 22 A schematic cross-sectional view of a specific example of a staircase when a building component provided in an embodiment of the present application is a staircase; Fig.23 A three-dimensional diagram of a specific example of a building component provided in an embodiment of the present application when the building component is a floor bottom plate; Fig.24 A top view of a specific example of a building component provided in an embodiment of the present application when the building component is a floor bottom plate; Fig.25 A front view of a specific example of a building component provided in an embodiment of the present application when the building component is a floor bottom plate; Fig.26 A side view of a specific example of a building component provided in an embodiment of the present application when the building component is a floor bottom plate; Fig. 27 A three-dimensional diagram of another specific example of a building component provided in an embodiment of the present application when the building component is a floor; Fig.28 A top view of another specific example of a building component provided in an embodiment of the present application when the building component is a floor; Fig.29 A front view of another specific example of a building component provided in an embodiment of the present application when the building component is a floor; Fig.30 A side view of another specific example of a building component provided in an embodiment of the present application when the building component is a floor; Fig.31 A three-dimensional diagram of a specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.32 A top view of a specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.33 A front view of a specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.34 A side view of a specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.35A three-dimensional diagram of another specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.36 A top view of another specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.37 A front view of another specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.38 A side view of another specific example of a building component provided in an embodiment of the present application when the building component is a span beam; Fig.39 A three-dimensional diagram of a specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.40 A top view of a specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.41 A front view of a specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.42 A side view of a specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.43 A cross-sectional view of a specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.44 A three-dimensional diagram of another specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.45 A top view of another specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.46 A front view of another specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.47 A side view of another specific example of a building component provided in an embodiment of the present application when the building component is a composite beam; Fig.48 A cross-sectional view of another specific example of a building component provided in an embodiment of the present application when the building component is a composite beam.

[0032] Reference numerals: 1-upper chord structure; 2-web plate; 3-top inflection line; 4-protrusion; 5-groove; 6-first longitudinal reinforcement; 7-cladding; 8-opening edge; 8'-opening edge shape; 9-concrete slab; 10-bottom inflection line; 11-transverse reinforcement; 12-second longitudinal reinforcement; 20-truss; 30-bottom plate; 31-bottom reinforcement group; 100- floor; 200 - Stairs; 210-staircase; 211-step; 220-end beam or platform; 230-first steel bar assembly; 231-first steel bar; 232-second steel bar; 240-First concrete structure; 251-seventh steel bar; 252-eighth steel bar; 300- floor; 300'- floor base plate; 310-weight reduction module; 320-second concrete structure; 330-second steel bar assembly; 331-third steel bar; 332-fourth steel bar; 400-span beam; 410-through hole; 420-truss structure; 421-web reinforcement; 422-upper chord rib; 500-composite beam; 520-fifth steel bar; 530-sixth steel bar. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0034] Those skilled in the art will appreciate that, unless expressly stated, the "said" and "the" used herein may also include plural forms. It should be further understood that the term "including" used in the specification of the present application refers to the presence of the features, integers, steps, operations and / or components, but does not exclude the implementation of other features, information, data, steps, operations, components and / or combinations thereof supported by the technical field. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0036] The trusses, floor slabs and building components provided in this application are intended to solve the above technical problems of related technologies.

[0037] The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above technical problems with specific embodiments. It should be noted that the following implementations can refer to, draw on or combine with each other, and the same terms, similar features and similar implementation steps in different implementations will not be described repeatedly.

[0038] The present application embodiment provides a truss, the structural schematic diagram of which is as follows: Figure 1 and Figure 2 As shown, the truss includes an upper chord structure 1 and a web 2 .

[0039] The upper chord structure 1 extends along a first direction; the web 2 is wavy and its entire length extends along the first direction, the web 2 has a plurality of top inflection lines 3 distributed in sequence along the first direction, and the plurality of top inflection lines 3 are wrapped in the upper chord structure 1; wherein the top inflection lines 3 extend along a second direction perpendicular to the first direction, and are perpendicular to the edge lines of the walls on both sides of the web 2 along the second direction.

[0040] In the embodiment of the present application, the entire length of the upper chord structure 1 and the web 2 extends along the first direction, the web 2 is wavy, and has a plurality of top inflection lines 3 that are sequentially spaced and distributed along the first direction, and the plurality of top inflection lines 3 are wrapped in the upper chord structure 1, so that in the process of manufacturing the truss, the plurality of top inflection lines 3 of the web 2 can be directly anchored into the upper chord structure 1, eliminating the welding or riveting connection process of the upper chord rod and the web rod in the related technology. Moreover, the top inflection line 3 extends along a second direction that is perpendicular to the upper chord structure 1 (that is, perpendicular to the entire length of the web 2), and the extension direction of the top inflection line 3 is perpendicular to the edge lines of the walls on both sides of the web 2 along the second direction, which can reduce the difficulty of processing and assembling the upper chord structure 1 and the web 2, and is energy-saving and environmentally friendly.

[0041] Alternatively, if Figure 1 and Figure 2 As shown, in the embodiment of the present application, the upper chord structure 1 includes strip concrete (concrete is concrete), and a plurality of top inflection lines 3 are anchored in the strip concrete. The top inflection line 3 of the web 2 can be directly anchored in the strip concrete (i.e., the upper chord structure 1), thereby eliminating the welding or riveting connection process between the upper chord member and the web member in the related art. The strip concrete extends along the first direction.

[0042] Alternatively, if Figure 1 As shown, in the embodiment of the present application, in the second direction, the top inflection line 3 is centrally arranged relative to the upper chord structure 1. This arrangement can make the force more uniform and reasonable.

[0043] Alternatively, if Figure 2 As shown, in the embodiment of the present application, the web 2 comprises a corrugated strip steel. The web 2 is made by continuously bending the strip steel in reverse into a corrugated shape.

[0044] Alternatively, if Figures 2 to 4 As shown, in the embodiment of the present application, a protrusion 4 is provided on the web 2. Such a configuration can improve the structural strength of the web 2 and enhance the stability of the web 2 under compression.

[0045] Alternatively, if Figure 2 and Figure 4As shown, in the embodiment of the present application, a protrusion 4 is provided between any adjacent top inflection lines 3 and bottom inflection lines 10 of the web 2. This can improve the structural strength and stability of the web located between the top inflection line 3 and the bottom inflection line 10.

[0046] Alternatively, if Figure 2 As shown, in the embodiment of the present application, the web 2 has a plurality of bottom inflection lines 10 sequentially distributed along the first direction. The plurality of top inflection lines 3 and the plurality of bottom inflection lines 10 are sequentially staggered and distributed in the first direction.

[0047] Alternatively, if Figure 2 and Figure 4 As shown, in the embodiment of the present application, the protrusion 4 extends in the direction from the bottom inflection line 10 of the web 2 to the top inflection line 3. The protrusion 4 is a long strip protrusion extending in the direction from the bottom inflection line 10 to the top inflection line 3 (or from the top inflection line 3 to the bottom inflection line 10). The long strip protrusion is provided on the web 2 to enhance the stability of the web 2 under compression.

[0048] Alternatively, if Figure 2 and Figure 4 As shown, in the embodiment of the present application, the protrusion 4 protrudes upward relative to the web 2. Of course, in other optional embodiments of the present application, the protrusion 4 can also protrude downward relative to the web 2 according to actual needs.

[0049] Alternatively, if Figure 3 As shown, in the embodiment of the present application, a groove 5 is provided at at least one top inflection line 3. By providing the groove 5 at the top inflection line 3 of the web 2, the spring effect of the corrugated web 2 can be reduced.

[0050] Alternatively, if Figure 3 As shown, in the embodiment of the present application, in the second direction, the groove 5 is centrally arranged relative to the top inflection line 3. Such an arrangement can make the effect of reducing the spring effect of the corrugated web 2 by the groove 5 more uniform and reasonable.

[0051] Optionally, in the embodiment of the present application, the axis of the groove 5 extends along the first direction. The extending direction of the groove 5 is parallel to the extending direction of the entire length of the web 2 and is perpendicular to the extending direction of the top inflection line 3.

[0052] Alternatively, if Figure 3 As shown, in the embodiment of the present application, at least one groove 5 is correspondingly provided to a top inflection line 3 .

[0053] Alternatively, if Figure 3As shown, in the embodiment of the present application, when one top inflection line 3 is provided with a corresponding groove 5, the groove 5 can be arranged centrally relative to the top inflection line 3. When one top inflection line 3 is provided with two or more grooves 5, the two or more grooves 5 can be distributed in sequence along the extension direction (i.e., the second direction) of the top inflection line 3.

[0054] Alternatively, if Figure 3 As shown, in the embodiment of the present application, in the cross section perpendicular to the first direction, the cross section of the groove 5 is semicircular. Each part of the semicircular groove is subjected to uniform force, which can improve the uniformity of reducing the spring effect.

[0055] Of course, in other optional embodiments of the present application, the cross-sectional shape of the groove 5 on the cross section can be set to other shapes, such as polygonal, semi-elliptical, etc., according to actual needs.

[0056] Alternatively, if Figures 3 to 7 As shown, in the embodiment of the present application, the truss further includes a first longitudinal rib 6 arranged in the upper chord structure 1 .

[0057] In the embodiment of the present application, the first longitudinal reinforcement 6 is arranged in the strip concrete (ie, the upper chord structure 1 ), which can increase the crack resistance and tensile strength of the concrete.

[0058] Alternatively, if Figure 4 As shown, in the embodiment of the present application, the first longitudinal rib 6 is arranged along the first direction (such as Figure 4 The first longitudinal reinforcement 6 is parallel to the extension direction of the upper chord structure 1 and perpendicular to the extension direction of the top inflection line 3.

[0059] Optionally, the first longitudinal reinforcement 6 is a longitudinal steel bar.

[0060] Alternatively, if Figure 3 , Figures 5 to 7 As shown, in the embodiment of the present application, at least one first longitudinal rib 6 is provided in the upper chord structure 1 .

[0061] Alternatively, if Figure 3 , Figures 5 to 7 As shown, in the embodiment of the present application, 1 to 2 first longitudinal ribs 6 may be arranged in the upper chord structure 1 .

[0062] Alternatively, if Figure 3 As shown, in some embodiments of the present application, the first longitudinal rib 6 is spaced apart from the web 2. The first longitudinal rib 6 and the plurality of top inflection lines 3 of the web 2 are spaced apart in the upper chord structure 1 without interfering with each other.

[0063] Alternatively, if Figure 6 and Figure 7 As shown, in some other embodiments of the present application, the first longitudinal rib 6 is connected to the web 2.

[0064] Optionally, in the embodiment of the present application, the first longitudinal rib 6 is welded to the web 2 and is located in the upper chord structure 1 .

[0065] Alternatively, if Figure 5 As shown, in some other embodiments of the present application, the first longitudinal rib 6 is passed through the through hole of the web 2.

[0066] Optionally, in the embodiment of the present application, a through hole is punched on the web 2 to allow the first longitudinal rib 6 to pass through, and the first longitudinal rib 6 is inserted into the through hole.

[0067] Alternatively, if Figure 3 As shown, in some further embodiments of the present application, the first longitudinal rib 6 is disposed in the groove 5 .

[0068] Alternatively, if Figure 3 As shown, in the embodiment of the present application, the first longitudinal rib 6 is spaced apart from the inner wall of the groove 5. Of course, in other embodiments, the first longitudinal rib 6 and the inner wall of the groove 5 can also be connected together (such as by welding) according to actual needs.

[0069] Alternatively, if Figures 8 to 10 As shown, in the embodiment of the present application, the truss further includes a covering member 7 , the covering member 7 includes a cavity with a downward opening, and the upper chord structure 1 is disposed in the cavity of the covering member 7 .

[0070] In the embodiment of the present application, the covering member 7 at least wraps the upper surface and the side of the upper chord structure 1 in the cavity of the covering member 7, and the covering member 7 and the upper chord structure 1 are integrated and subjected to combined force. The opening of the covering member 7 downwardly arranged can also avoid the web 2, so that the web 2 is easy to be anchored in the upper chord structure 1.

[0071] Alternatively, if Figures 8 to 10 As shown, in the embodiment of the present application, the upper chord structure 1 is a strip of concrete, and at least the upper surface and the side of the strip of concrete are covered with iron sheets to form an open covering member 7. The iron sheet and the strip of concrete are integrated to bear the combined force, and the iron sheet can be used as a mold for pouring concrete.

[0072] Alternatively, if Figure 8 As shown, in some embodiments of the present application, the covering member 7 is a channel steel, and the covering member 7 covers the upper surface and the side surfaces of the upper chord structure 1 .

[0073] Alternatively, if Fig. 9 and Fig.10 As shown, in some other embodiments of the present application, the covering member 7 is a C-shaped steel, and the covering member 7 covers the upper surface, the side surface and the lower surface of the upper chord structure 1 to the outer side of the web 2.

[0074] Alternatively, if Fig.10 As shown, in the embodiment of the present application, the opening edge 8 of the covering member 7 is bent into the cavity and embedded in the upper chord structure 1 .

[0075] Optionally, in the embodiment of the present application, the opening edge 8 of the covering member 7 is bent into the cavity and embedded in the strip concrete, which can strengthen the combined force of steel and concrete (covering member 7 and upper chord structure 1) and improve the structural strength.

[0076] Alternatively, if Fig.11 As shown, in the embodiment of the present application, the opening edge shape 8' of the covering member 7 is serrated or wavy. This arrangement can further strengthen the anchoring of the covering member 7 and the upper chord structure 1.

[0077] Of course, if Fig.12 As shown, in some other optional embodiments of the present application, anchor-shaped protrusions can be sequentially arranged along the opening edge 8 of the covering member 7 according to actual needs, and the shape of the opening edge 8' is similar to the anchor shape. There is a space between two adjacent anchor-shaped protrusions that is adapted to the shape of the anchor-shaped protrusions. When the covering member 7 is filled with concrete to form the upper chord structure 1, the concrete will fill the space, so that the opening edge 8 is embedded in the upper chord structure 1, thereby strengthening the anchoring effect of the covering member 7 and the upper chord structure 1.

[0078] Optionally, in the embodiment of the present application, a protrusion (not shown) facing the upper chord structure 1 is provided on the top wall and at least one of the two side walls of the covering member 7. The protrusion is embedded in the upper chord structure 1, which can increase the connection effect between the covering member 7 and the upper chord structure 1 and improve the integrity and strength of the upper chord ribs of the truss.

[0079] Optionally, in the embodiment of the present application, according to actual requirements for the connection effect between the covering 7 and the upper chord structure 1, a protrusion can be selected to be set on the side of the top wall of the covering 7 facing the upper chord structure 1 (i.e., the top wall inside the cavity of the covering 7), or a protrusion can be selected to be set on the side of any side wall of the covering 7 facing the upper chord structure 1 (i.e., any side wall inside the cavity of the covering 7) or both side walls facing the upper chord structure 1 (i.e., the two side walls inside the cavity of the covering 7), or a protrusion can be selected to be set on the top wall and at least one side wall of the covering 7 facing the upper chord structure 1.

[0080] Optionally, in the embodiment of the present application, the protrusions provided on the side of the covering member 7 facing the upper chord structure 1 may be formed by a dotting or punching processing method, or may be provided as strip-shaped protrusions.

[0081] Alternatively, if Figures 13 to 17 As shown, in the embodiment of the present application, in the cross section perpendicular to the first direction, the cross section of the upper chord structure 1 is rectangular (eg Fig.13 As shown), trapezoidal (as Fig.14 As shown), oblong (as Fig.15 ), a hexagon having long sides extending along the second direction (as shown Fig.17), or an octagon having long sides extending along the second direction (as shown Fig.16 A variety of cross-sectional shapes can be flexibly selected according to different engineering needs.

[0082] Optionally, in the embodiment of the present application, the upper chord structure 1 may be a strip structure having a cross-sectional shape of an oblong or polygonal shape (such as a rectangle, a trapezoid, a hexagon with long sides extending along the second direction, or an octagon with long sides extending along the second direction, etc.).

[0083] Alternatively, if Figures 13 to 17 As shown, in the embodiment of the present application, the cross-sectional shape of the upper chord structure 1 is symmetrical with respect to the perpendicular bisector of the upper chord structure 1. The cross-sectional shape of the upper chord structure 1 is a symmetrical figure.

[0084] Optionally, in the embodiment of the present application, the upper chord structure 1, the covering member 7 and the first longitudinal reinforcement 6 serve as the upper chord ribs of the truss.

[0085] The embodiment of the present application provides a strip-shaped concrete upper chord rib and a corrugated strip steel web truss.

[0086] The truss provided in the embodiment of the present application can be applied to floor slabs, such as composite slabs or floor decking slabs.

[0087] Based on the same inventive concept, the present application embodiment provides a floor slab, the structural schematic diagram of which is as follows: Fig.18 As shown, the floor comprises: the truss and the bottom plate as described above, wherein the bottom plate is connected to the web plate 2 of the truss and is located at the bottom inflection line 10 of the web plate 2 .

[0088] In the embodiment of the present application, the bottom plate is connected to the web 2 of the truss and is located at the bottom inflection line 10 of the web 2. The bottom plate is reliably connected to the truss to form a floor and bear force together.

[0089] It should be noted that, since the floor slab of the embodiment of the present application includes the truss of the embodiment of the present application, the floor slab of the embodiment of the present application also has the above-mentioned beneficial effects of the truss of the embodiment of the present application, which will not be elaborated here.

[0090] Optionally, in the embodiment of the present application, the floor slab is a composite slab. The trusses provided in the embodiment of the present application can be used to make a reinforced truss composite slab. Of course, in other embodiments, the floor slab can also be a floor deck.

[0091] Alternatively, if Fig.18 As shown, in the embodiment of the present application, the bottom plate includes a bottom rib group and a concrete plate 9, the bottom rib group is partially arranged at multiple bottom inflection lines 10 of the web 2, and the concrete plate wraps multiple bottom inflection lines 10 and the bottom rib group. The embodiment of the present application can be inserted into the reinforced concrete bottom plate to form a composite plate.

[0092] Alternatively, if Fig.18 As shown, in the embodiment of the present application, the concrete slab 9 is arranged along a first direction (such as Fig.18 The concrete slab 9 is in the shape of a long strip and is parallel to the upper chord structure 1.

[0093] Optionally, in the embodiment of the present application, the thickness of the concrete slab 9 is less than 100 mm.

[0094] Alternatively, if Fig.18 As shown, in the embodiment of the present application, the bottom rib group includes a second longitudinal rib 12 and a plurality of transverse ribs 11 , the plurality of transverse ribs 11 are arranged one by one on a plurality of bottom inflection lines 10 , and the second longitudinal rib 12 is arranged on the plurality of transverse ribs 11 .

[0095] In the embodiment of the present application, a transverse reinforcement 11 is added to the upper part of the bottom inflection line 10 of the web 2, and a second longitudinal reinforcement 12 is added to the upper part of the transverse reinforcement 11 and tied together, and concrete is poured to form a concrete slab 9 as a bottom plate. The web 2, the transverse reinforcement 11 and the second longitudinal reinforcement 12 are reasonably woven to prevent the web 2 from being pulled out of the concrete.

[0096] Optionally, the transverse reinforcement 11 is a transverse reinforcement and the second longitudinal reinforcement 12 is a longitudinal reinforcement.

[0097] Optionally, in the embodiment of the present application, the second longitudinal reinforcement 12 is prestressed. The second longitudinal reinforcement 12 is prestressed before pouring concrete, and applying prestress to the second longitudinal reinforcement 12 can reduce concrete cracking of the concrete slab 9.

[0098] In the embodiment of the present application, the manufacturing process of the truss and the floor slab (taking the composite slab as an example) is as follows: The rolled strip steel is folded into a wavy web 2 by an automatic continuous bending machine, and the web 2 is placed in a mold (the mold can be a covering member 7) of a strip concrete (i.e., the upper chord structure 1) and accurately positioned. The concrete is poured and vibrated and cured. After reaching the strength, it can be removed from the mold to obtain a truss. If the poured strip concrete is used as the upper chord structure 1 and a channel steel or C-shaped steel is used as the covering member 7, the channel steel or C-shaped steel can be directly used as the mold of the upper chord structure 1 without removing the mold.

[0099] Optionally, a protrusion 4 may be pressed out on the steel strip by a die before the steel strip is continuously bent.

[0100] Optionally, the groove 5 can be pressed out simultaneously when the steel strip is continuously bent.

[0101] Optionally, the first longitudinal reinforcement 6 can be automatically welded to the web 2 or punched into the web 2 when the strip is bent.

[0102] Afterwards, a transverse reinforcement 11 is placed above the bottom inflection line 10 of the web 2 of the prefabricated truss, and a second longitudinal reinforcement 12 is placed on the upper part of the transverse reinforcement 11, and the three are tied together. Concrete is poured to reach the designed thickness and strength to form a concrete slab 9, which can be removed from the mold to obtain a composite slab.

[0103] Optionally, before placing the second longitudinal reinforcement 12 on the top of the transverse reinforcement 11, the second longitudinal reinforcement 12 is first prestressed and stretched to the design value, and then the prestressed second longitudinal reinforcement 12 is used to operate according to the above steps to obtain a prestressed concrete composite slab.

[0104] Based on the same inventive concept, an embodiment of the present application provides a building component, which includes the floor slab 100 as described above.

[0105] Alternatively, if Figures 19 to 48 As shown, in the embodiment of the present application, the building component includes at least one of a staircase 200 , a floor slab 300 , a floor slab bottom plate 300 ′, a span beam 400 and a composite beam 500 .

[0106] In some optional embodiments of the present application, such as Figures 19 to 22 As shown, the building element includes a staircase 200 .

[0107] Alternatively, if Figures 19 to 21 As shown, in the embodiment of the present application, the staircase 200 includes a staircase 210 using the floor 100 as the staircase bottom plate, and the staircase 210 includes at least two steps 211 .

[0108] Alternatively, if Figures 19 to 21 As shown, in the embodiment of the present application, the floor 100 is used as the bottom plate of the stair section 210 .

[0109] Alternatively, if Figures 19 to 21 As shown, in the embodiment of the present application, the floor 100 is arranged obliquely, and at least two of the steps 211 cover the trusses 20 and the bottom rib group 31 exposed on the bottom plate 30 of the floor 100 .

[0110] Alternatively, if Figures 19 to 22 As shown, in the embodiment of the present application, the staircase 200 includes: a first steel bar assembly 230 and a first concrete structure 240. The first steel bar assembly 230 is connected to the floor 100; the first concrete structure 240 wraps the floor 100 and the first steel bar assembly 230.

[0111] In the embodiment of the present application, the floor 100 is used as the bottom plate of the staircase 200. The floor 100 is used to carry the first steel bar assembly 230 and the first concrete structure 240.

[0112] Alternatively, if Fig.19 and Fig.21As shown, in the embodiment of the present application, the first steel bar assembly 230 includes a plurality of first steel bars 231 and a plurality of second steel bars 232 arranged on the truss 20 of the floor 100 and connected to each other, the plurality of first steel bars 231 are distributed along the length direction of the stair 200 (i.e., the longitudinal direction of the stair 200) and each extends along the width direction of the stair 200 (i.e., the transverse direction of the stair 200), and the plurality of second steel bars 232 are distributed along the width direction of the stair 200 and each extends along the length direction of the stair 200.

[0113] Alternatively, if Fig. 22 As shown, in the embodiment of the present application, the first steel bar 231 extends in the transverse direction of the stair 200 and serves as a transverse steel bar; the second steel bar 232 extends in the longitudinal direction of the stair 200 and serves as a longitudinal steel bar.

[0114] Alternatively, if Fig. 22 As shown, in the embodiment of the present application, both ends of the first steel bar 231 along the width direction of the staircase 200 are bent toward one side of the truss 20 close to the floor 100.

[0115] Alternatively, if Fig. 22 As shown, in the embodiment of the present application, the first steel bar 231 is arranged on the truss 20 of the floor 100 , and the second steel bar 232 is arranged on a side of the first steel bar 231 away from the truss 20 of the floor 100 .

[0116] Optionally, in the embodiment of the present application, the first steel bar 231 can be installed on the truss 20 of the floor 100 by tying, overlapping or anchoring. The first steel bar 231 and the second steel bar 232 are connected together by tying, overlapping or welding.

[0117] Alternatively, if Figures 19 to 21 As shown, in the embodiment of the present application, the truss 20 of the floor 100 extends as a whole along the length direction of the stair section 210 .

[0118] Alternatively, if Fig.19 and Fig. 22 As shown, in the embodiment of the present application, the floor 100 includes at least two trusses 20, and the at least two trusses 20 are arranged on the bottom plate 30 of the floor 100, and the at least two trusses 20 of the floor 100 are distributed in sequence along the width direction of the stair section 210.

[0119] Optionally, in the embodiment of the present application, the second steel bar 232 extends with the truss 20 or the bottom plate 30. The number of the first steel bars 231 and the second steel bars 232 is not limited. Optionally, the number of the second steel bars 232 can be adjusted according to the number of the trusses 20.

[0120] Alternatively, if Figures 19 to 21 As shown, staircase 200 also includes end beams or landings 220 .

[0121] Alternatively, if Figures 19 to 21 As shown, in the embodiment of the present application, the relatively higher end (hereinafter referred to as the high end) of the two ends of the stair section 210 is connected to an end beam or platform 220, and the relatively lower end (hereinafter referred to as the low end) is connected to another end beam or platform 220.

[0122] Optionally, both ends of at least one of the second steel bars 232, the truss 20, the bottom plate 30 and the bottom reinforcement group 31 along the length direction of the staircase 200 may be fixed to the end beam or the platform 220 by tying, overlapping or anchoring.

[0123] Alternatively, if Fig.21 As shown, in the embodiment of the present application, the staircase 200 further includes a seventh steel bar 251 and an eighth steel bar 252, one end of the seventh steel bar 251 is connected to at least one of the floor 100 (such as the truss 20) and the second steel bar 232, and the seventh steel bar 251 extends in the horizontal direction as a whole; one end of the eighth steel bar 252 is connected to at least one of the floor 100 (such as the bottom bar group 31), the second steel bar 232 and the seventh steel bar 251, and the eighth steel bar 252 extends in the vertical direction as a whole. The seventh steel bar 251 and the eighth steel bar 252 are wrapped in the first concrete structure 240 located at the end beam or platform 220.

[0124] Optionally, in the embodiment of the present application, the seventh steel bar 251 can be directly connected to the floor slab 100 (such as the truss 20) by binding, overlapping or anchoring, or the seventh steel bar 251 can be tied or overlapped with the first steel bar assembly 230 (such as the second steel bar 232) so that the seventh steel bar 251 is connected to the floor slab 100 through the first steel bar assembly 230 (such as the second steel bar 232).

[0125] Optionally, in the embodiment of the present application, the eighth steel bar 252 can be directly connected to the floor slab 100 (such as the truss 20) by tying, overlapping or anchoring, or the eighth steel bar 252 can be tied or overlapped with the first steel bar assembly 230 (such as the second steel bar 232) or the seventh steel bar 251 so that the eighth steel bar 252 is connected to the floor slab 100 through the first steel bar assembly 230 (such as the second steel bar 232) or the seventh steel bar 251.

[0126] In the embodiment of the present application, the first steel bar assembly 230 extends in the entirety along the length direction of the stair section 210 and is fixedly mounted on the floor 100. The seventh steel bar 251 extends in the entirety along the horizontal direction and is fixedly connected to the floor 100 or one end of the first steel bar assembly 230. The eighth steel bar 252 extends in the entirety along the vertical direction and is fixedly connected to the floor 100, the seventh steel bar 251 or one end of the first steel bar assembly 230.

[0127] In the embodiment of the present application, the first steel bar assembly 230 is connected to the floor 100 to form the frame of the stair section 210; the seventh steel bar 251 and the eighth steel bar 252 at the high end form the frame of the high end end beam or platform 220; the seventh steel bar 251 and the eighth steel bar 252 at the low end form the frame of the low end end beam or platform 220. After the frames of the stair section 210 and the end beam or platform 220 are formed, concrete is poured so that the concrete wraps the above frames to obtain the first concrete structure 240, thereby forming the staircase 200. Part of the surface of the first concrete structure 240 at the stair section 210 is used as the step 211, and part of the surface of the first concrete structure 240 at the end beam or platform 220 is used as the end beam or platform.

[0128] In the embodiment of the present application, the floor 100 can be used as the base plate of the staircase 200, and steel bars are tied on the upper part and concrete is poured to form a composite staircase.

[0129] Optionally, appropriate reinforcement is placed before pouring.

[0130] Optionally, the staircase 200 of the embodiment of the present application may be a composite staircase formed by using the upper open concrete-filled steel tube upper chord and the corrugated steel web truss provided in the embodiment of the present application.

[0131] In some other optional embodiments of the present application, Figure 23 to Figure 26 As shown, the building component includes a floor slab 300 ′; the floor slab 300 ′ includes a floor slab 100 and a weight reduction module 310 disposed on the floor slab 100 .

[0132] Alternatively, if Figure 23 to Figure 26 As shown, in the embodiment of the present application, the floor bottom plate 300' includes a plurality of weight reduction modules 310, and the plurality of weight reduction modules 310 are arrayed and distributed on the bottom plate 30 of the floor 100. This arrangement can improve the hollow part of the hollow floor, the uniformity of weight distribution, and obtain better sound insulation effect.

[0133] Optionally, in the embodiment of the present application, the weight reduction module 310 can be hollow or light in weight. These two methods can be used to reduce weight.

[0134] Optionally, in the embodiment of the present application, the weight reduction module 310 includes but is not limited to a weight reduction block or a stacking box. Figure 23 to Figure 26 As shown, in the embodiment of the present application, the weight-reducing block or the stacking box is a hollow rectangular structure. Optionally, the vertices of the weight-reducing block or the stacking box are rounded or right angles.

[0135] Alternatively, if Fig.23 , Fig.24 and Fig.26As shown, in the embodiment of the present application, the floor 100 includes at least two trusses 20, and the at least two trusses 20 are arranged on the bottom plate 30 of the floor 100, and the at least two trusses 20 of the floor 100 are respectively extended along the length direction of the floor bottom plate 300' as a whole. A plurality of weight reduction modules 310 and at least two trusses 20 of the floor 100 are alternately distributed in sequence along the width direction of the floor bottom plate 300'. Such an arrangement can arrange the weight reduction modules 310 and the trusses 20 more reasonably, and improve the hollow part of the floor bottom plate 300', the uniformity of weight distribution, etc. while improving the structural strength and stability of the floor bottom plate 300'.

[0136] In some other optional embodiments of the present application, Figures 27 to 30 As shown, the building element includes a floor 300 .

[0137] Alternatively, if Figures 27 to 30 As shown, in the embodiment of the present application, the floor 100 is used as the base plate of the floor 300 .

[0138] Alternatively, if Figures 27 to 30 As shown, in the embodiment of the present application, the floor 300 includes: a weight reduction module 310 , a second steel bar assembly 330 and a second concrete structure 320 .

[0139] It should be noted that in the embodiment of the present application, the configuration of the weight reduction module 310 of the floor 300 and the floor 100 is the same or similar to the configuration of the weight reduction module 310 of the floor bottom plate 300' and the floor 100 in the present application, and will not be repeated here. Figure 23 to Figure 26 The configuration of the weight reduction module 310 of the floor bottom plate 300 ′ and the floor 100 in the embodiment of the present application is understood.

[0140] Alternatively, if Figures 27 to 30 As shown, in the embodiment of the present application, the weight reduction module 310 is disposed on the floor 100. The second steel bar assembly 330 is disposed on the weight reduction module 310 and / or the floor 100. The second concrete structure 320 wraps the weight reduction module 310, the second steel bar assembly 330 and at least a portion of the floor 100.

[0141] In the embodiment of the present application, the floor 100 is used as the bottom plate of the floor 300. The floor 100 is used to carry the weight reduction module 310, the second steel bar assembly 330 and the second concrete structure 320.

[0142] In the embodiment of the present application, the interior of the weight reduction module 310 is hollow, and the formed floor 300 is a hollow floor, which can reduce the weight of the floor 300, improve the sound insulation effect, and reduce the cost.

[0143] Alternatively, if Figures 27 to 30As shown, in the embodiment of the present application, the second steel bar assembly 330 includes a third steel bar 331 and a fourth steel bar 332, and the third steel bar 331 and the fourth steel bar 332 intersect each other; the third steel bar 331 and the fourth steel bar 332 are arranged on the truss 20 and / or the bottom plate 30 of the floor 100.

[0144] In the embodiment of the present application, the third steel bar 331 and the fourth steel bar 332 are intersected and connected together, which can improve the bearing capacity and stability of the second steel bar assembly 330, thereby improving the bearing capacity of the overall structure of the floor slab 300.

[0145] Alternatively, if Fig. 27 and Fig.28 As shown, in the embodiment of the present application, the third steel bar 331 and the fourth steel bar 332 are arranged perpendicularly. The number of the third steel bar 331 and the number of the fourth steel bar 332 are multiple. The multiple third steel bars 331 are distributed along the first direction, and each of them is arranged along the second direction (such as Fig.30 The plurality of fourth steel bars 332 are distributed along the second direction, and each of the fourth steel bars 332 extends in the first direction (as shown in the left and right directions). Fig.29 left and right directions as shown).

[0146] Optionally, the first direction and the second direction are both parallel to the horizontal plane. The first direction and the second direction are perpendicular.

[0147] Alternatively, if Fig. 27 , Fig.29 and Fig.30 As shown, in the embodiment of the present application, the transverse reinforcement 11 of the bottom reinforcement group 31 is parallel to the third reinforcement 331 . The second longitudinal reinforcement 12 of the bottom reinforcement group 31 is parallel to the fourth reinforcement 332 .

[0148] Optionally, the third steel bar 331 and the fourth steel bar 332, the third steel bar 331 and the weight reduction module 310 or the floor slab 100, and the fourth steel bar 332 and the weight reduction module 310 and the floor slab 100 may be connected together by binding.

[0149] Optionally, in the embodiment of the present application, a weight-reducing block or a composite box is arranged on the floor slab 100 , and steel bars are tied on the upper part and concrete is poured to form a hollow floor slab 300 .

[0150] In some optional embodiments of the present application, Figures 31 to 38 As shown, the building element includes a span member 400. The span member 400 includes a floor slab 100.

[0151] Alternatively, if Fig.31 and Fig.32 As shown, in the embodiment (first embodiment) of the present application, the cross beam 400 is provided with a through hole 410, and the through hole 410 is used to assemble a fastener. The cross beam 400 is connected to other components or equipment through the fastener.

[0152] Alternatively, if Fig.31 and Fig.32 As shown, in the embodiment of the present application, the truss 20 of the floor 100 is provided with at least one through hole 410 on at least one side along the width direction of the span beam 400. Such a configuration can improve the stability and reliability of the connection.

[0153] Alternatively, if Fig.31 and Fig.32 As shown, in the embodiment of the present application, the floor 100 can be used as a span beam 400, and a hole is set at a corresponding position of the span beam 400 as a through hole 410. Optionally, the fastener includes but is not limited to a bolt, and the through hole 410 is used to pass the bolt to connect the span beam 400 with other components or equipment.

[0154] Alternatively, if Figures 35 to 38 As shown, in the embodiment of the present application (second embodiment), the span beam 400 further includes a truss structure 420, which is disposed on the bottom plate 30 of the floor 100 and is located on one side of the truss 20 of the floor 100 along the width direction of the span beam 400. The span beam 400 generates a negative bending moment, which can increase the truss structure 420's resistance to negative bending moments.

[0155] Optionally, in the embodiment of the present application, the truss structure 420 may adopt a conventional or common truss in the art. Of course, in other optional implementations, the truss structure 420 may also adopt the truss 20 provided in the embodiment of the present application according to actual needs.

[0156] Alternatively, if Figures 35 to 38 As shown, in the embodiment of the present application, the truss structure 420 includes a web rib 421 and an upper chord rib 422 , the bottom of the web rib 421 is connected to the bottom plate 30 of the floor 100 , and the upper chord rib 422 is arranged on the top of the web rib 421 .

[0157] Alternatively, if Figure 35 to Figure 37 As shown, in the embodiment of the present application, the web rib 421 is wavy, the lower folded portion of the web rib 421 is wrapped in the bottom plate 30 of the floor 100, and the upper chord rib 422 is fixedly installed at the upper folded portion of the web rib 421. Web ribs 421 are respectively arranged on both sides of the chord rib 422 along the width direction of the span beam 400.

[0158] Optionally, the web ribs 421 are made of steel bars. Optionally, the upper chord ribs 422 are made of steel bars.

[0159] Optionally, in the embodiment of the present application, one or more truss structures 420 may be provided according to the actual situation of negative bending moment generated by the span beam 400. One or more negative bending moment resistant steel bars may be added to the upper chord rib 422 according to the load.

[0160] Alternatively, if Fig.35 , Fig.36 and Fig.38 As shown, in the embodiment of the present application, the floor 100 includes at least two trusses 20, and the at least two trusses 20 of the floor 100 are distributed in sequence along the width direction of the span beam 400, and each of them extends along the length direction of the span beam 400 as a whole.

[0161] Alternatively, if Fig.35 and Fig.36 As shown, in the embodiment of the present application, the truss structure 420 extends along the length direction of the span beam 400 as a whole, and the truss structure 420 is located between the trusses 20 of two adjacent floor slabs 100. This arrangement can improve the negative moment resistance effect.

[0162] Alternatively, if Fig.35 and Fig.36 As shown, in the embodiment of the present application, at least one through hole 410 is respectively provided between the truss 20 of the floor 100 and the truss structure 420, and between the truss 20 of the floor 100 and away from the truss structure 420. Such a setting can improve the stability and reliability of the connection.

[0163] In some optional embodiments of the present application, Figures 39 to 48 As shown, the building element includes a composite beam 500. The floor slab 100 is used as a bottom plate of the composite beam 500.

[0164] Alternatively, if Figure 39 to Figure 41 as well as Figures 44 to 46 As shown, in the embodiment of the present application, the second longitudinal ribs 12 of the bottom rib group 31 extend along the entire length direction of the composite beam 500 .

[0165] Alternatively, if Figure 39 to Figure 43 As shown, in the embodiment of the present application (first specific example), the composite beam 500 includes: a fifth steel bar 520. The fifth steel bar 520 includes at least vertical sections located on both sides of the truss 20 of the floor 100 along the width direction of the composite beam 500, and the bottom is connected to the bottom plate 30 of the floor 100.

[0166] Alternatively, if Fig.39 , Fig.42 and Fig.43 As shown, in the embodiment of the present application, the fifth steel bar 520 is U-shaped with its opening facing upward.

[0167] Alternatively, if Fig.39 , Fig.42 and Fig.43 As shown, in the embodiment of the present application, the fifth steel bar 520 is in the shape of a rectangle with an open top and is not closed. The opening of the fifth steel bar 520 faces the side of the bottom plate 30 away from the floor 100 .

[0168] Alternatively, if Fig.43As shown, in the embodiment of the present application, the fifth steel bar 520 also includes a first horizontal section, both ends of which are respectively connected to the bottom ends of the vertical sections on both sides of the truss 20 of the floor 100, and the bottom ends of the first horizontal section and the vertical section are wrapped in the bottom plate 30 of the floor 100.

[0169] Alternatively, if Fig.39 , Fig.42 and Fig.43 As shown, in the embodiment of the present application, the top ends of the vertical sections on both sides of the trusses 20 of the floor 100 approach each other and bend downward.

[0170] Alternatively, if Figure 39 to Figure 41 As shown, in the embodiment of the present application, the number of the fifth steel bars 520 is at least two, and the at least two fifth steel bars 520 are distributed along the length direction of the composite beam 500. Such an arrangement can improve the structural strength and stability of the composite beam 500.

[0171] Alternatively, if Figures 44 to 48 As shown, in the embodiment of the present application (the second specific example), the composite beam 500 includes: a sixth steel bar 530, the sixth steel bar 530 includes at least vertical sections located on both sides of the truss 20 of the floor 100 along the width direction of the composite beam 500, and the bottom is connected to the bottom plate 30 of the floor 100.

[0172] Alternatively, if Fig.44 , Fig.47 and Fig.48 As shown, in the embodiment of the present application, the sixth steel bar 530 is a ring structure.

[0173] Alternatively, if Fig.44 , Fig.47 and Fig.48 As shown, in the embodiment of the present application, the sixth steel bar 530 is in the shape of a closed rectangle.

[0174] Alternatively, if Fig.44 , Fig.47 and Fig.48 As shown, in the embodiment of the present application, the sixth steel bar 530 also includes a second horizontal segment and a third horizontal segment, the second horizontal segment and the third horizontal segment are respectively connected to the vertical segment, and the second horizontal segment is located at the bottom of the vertical segment, and the third horizontal segment is located at the top of the vertical segment, and the bottom of the second horizontal segment and the vertical segment are wrapped in the bottom plate 30 of the floor 100.

[0175] In the embodiment of the present application, the two ends of the second horizontal section are respectively connected to the bottom ends of the vertical sections on both sides of the truss 20 of the floor 100, and the two ends of the third horizontal section are respectively connected to the top ends of the vertical sections on both sides of the truss 20 of the floor 100.

[0176] Alternatively, if Figures 44 to 46As shown, in the embodiment of the present application, the number of the sixth steel bars 530 is at least two, and the at least two sixth steel bars 530 are distributed along the length direction of the composite beam 500. Such an arrangement can improve the structural strength and stability of the composite beam 500.

[0177] In the embodiment of the present application, the trusses 20 of the floor 100 can be used as bottom plate reinforcement to form the bottom plate of the composite beam 500. The floor 100 is used as the bottom plate of the composite beam 500, and the corresponding reinforcement is placed to form a composite beam.

[0178] It should be noted that, since the building components of the embodiments of the present application include the floor slabs of the embodiments of the present application, the building components of the embodiments of the present application also have the above-mentioned beneficial effects of the floor slabs of the embodiments of the present application, which will not be elaborated here.

[0179] By applying the embodiments of the present application, at least the following beneficial effects can be achieved: In the embodiment of the present application, the entire length of the upper chord structure and the web plate extends along the first direction, the web plate is wavy, and has a plurality of top inflection lines that are sequentially spaced and distributed along the first direction, and the plurality of top inflection lines are wrapped in the upper chord structure, so that in the process of manufacturing the truss, the plurality of top inflection lines of the web plate can be directly anchored into the upper chord structure, eliminating the welding or riveting connection process of the upper chord rod and the web rod in the related technology. Moreover, the top inflection line extends along a second direction that is perpendicular to the upper chord structure (that is, perpendicular to the entire length of the web plate), and the extension direction of the top inflection line is perpendicular to the edge lines of the walls on both sides of the web plate along the second direction, which can reduce the difficulty of processing and assembling the upper chord structure and the web plate, and is energy-saving and environmentally friendly.

[0180] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the referred device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0181] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0182] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0183] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0184] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A truss, characterized in that: include: An upper chord structure extending along a first direction; A web, which is wavy and has an entire length extending along the first direction, wherein the web has a plurality of top inflection lines sequentially distributed along the first direction, and the plurality of top inflection lines are wrapped in the upper chord structure; The top inflection line extends along a second direction perpendicular to the first direction, and is perpendicular to edge lines of the wall surfaces on both sides of the web along the second direction.

2. The truss according to claim 1, characterized in that Include at least one of the following: The upper chord structure comprises strip concrete, and a plurality of top inflection lines are anchored in the strip concrete; In the second direction, the top inflection line is centrally disposed relative to the upper chord structure; The web comprises a corrugated steel strip.

3. The truss according to claim 1, characterized in that The web is provided with a protrusion; Include at least one of the following: The protrusion is provided between any adjacent top inflection lines and bottom inflection lines of the web; The protrusion extends along the bottom inflection line of the web toward the top inflection line; The protrusion protrudes upward relative to the web.

4. The truss according to claim 1, characterized in that A groove is provided at at least one of the top inflection lines; Include at least one of the following: In the second direction, the groove is centrally disposed relative to the top inflection line; The axis of the groove extends along the first direction; At least one of the grooves is correspondingly provided on one of the top inflection lines; In a cross section perpendicular to the first direction, the cross section of the groove is semicircular; The truss also includes a first longitudinal rib disposed in the groove.

5. The truss according to claim 1, characterized in that Also included is a first longitudinal reinforcement disposed in the upper chord structure; Include at least one of the following: The first longitudinal ribs extend along the first direction; At least one of the first longitudinal reinforcements is provided in the upper chord structure; The first longitudinal ribs are spaced apart from or connected to the web, or the first longitudinal ribs are passed through a through hole of the web.

6. The truss according to any one of claims 1 to 5, characterized in that It also includes a covering member, which includes a cavity with a downward opening, and the upper chord structure is arranged in the cavity of the covering member.

7. The truss according to claim 6, characterized in that Include at least one of the following: The covering member includes a channel steel or a C-shaped steel. If the covering member is a channel steel, the covering member covers the upper surface and the side surface of the upper chord structure; if the covering member is a C-shaped steel, the covering member covers the upper surface, the side surface and at least a part of the lower surface of the upper chord structure; The opening edge of the covering member is bent into the cavity and embedded in the upper chord structure; The opening edge of the covering member is serrated or wavy, or anchor-shaped protrusions are sequentially arranged along the opening edge of the covering member; A protrusion facing the upper chord structure is disposed on the top wall and at least one of the two side walls of the covering component, and the protrusion is embedded in the upper chord structure.

8. The truss according to any one of claims 1 to 5, characterized in that In a cross section perpendicular to the first direction, the cross section of the upper chord structure is in a rectangular, trapezoidal, oblong, hexagonal or octagonal shape with a long side extending along the second direction.

9. A floor slab, characterized in that: include: A truss as claimed in any one of claims 1 to 8; A bottom plate is connected to the web of the truss and is located at the bottom inflection line of the web.

10. The floor slab according to claim 9, characterized in that The bottom plate includes a bottom rib group and a concrete plate, wherein the bottom rib group is partially arranged at a plurality of bottom inflection lines of the web plate, and the concrete plate wraps the plurality of bottom inflection lines and the bottom rib group; Among them, at least one of the following is included: The concrete slab extends along a first direction; The bottom rib group includes a second longitudinal rib and a plurality of transverse ribs, the plurality of transverse ribs are arranged one by one on the plurality of bottom inflection lines, and the second longitudinal ribs are arranged on the plurality of transverse ribs; The bottom reinforcement group includes second longitudinal reinforcements to which prestressing force is applied.

11. A building component, characterized in that: include: A floor slab as claimed in claim 9 or 10.

12. The building element according to claim 11, characterized in that including stairs; The staircase comprises an inclined floor and at least two steps; At least two of the steps cover the trusses and bottom reinforcement groups exposed on the bottom plate of the floor slab.

13. The building element according to claim 12, characterized in that The staircase comprises: A first steel bar assembly connected to the floor slab; A first concrete structure encapsulates the floor slab and the first reinforcement assembly.

14. The building element according to claim 13, characterized in that Include at least one of the following: The first steel bar assembly includes a plurality of first steel bars and a plurality of second steel bars arranged on the trusses of the floor slab and connected to each other, the plurality of first steel bars are distributed along the length direction of the staircase and each extends along the width direction of the staircase, and the plurality of second steel bars are distributed along the width direction of the staircase and each extends along the length direction of the staircase; At least two trusses are arranged on the bottom plate of the floor slab, and the at least two trusses of the floor slab are distributed in sequence along the width direction of the floor slab, and each of the trusses extends along the length direction of the floor slab as a whole.

15. The building element according to claim 11, characterized in that Including floor slab; The floor base plate includes the floor plate and a weight reduction module arranged on the floor plate.

16. The building element according to claim 15, characterized in that Include at least one of the following: The floor bottom plate includes a plurality of weight reduction modules, and the plurality of weight reduction modules are arrayed and distributed on the bottom plate of the floor; The weight reduction module includes a weight reduction block or a stacking box; At least two trusses are provided on the bottom plate of the floor slab, and the at least two trusses of the floor slab each extend as a whole along the length direction of the floor bottom plate, and the multiple weight reduction modules and the at least two trusses of the floor slab are alternately distributed in sequence along the width direction of the floor bottom plate.

17. The building element according to claim 11, characterized in that It includes a floor slab; the floor slab is used as the base plate of the floor slab.

18. The building element according to claim 17, characterized in that The floor comprises: A weight reduction module is arranged on the floor slab; A second steel bar assembly is arranged on the weight-reducing module and / or the floor slab; A second concrete structure encapsulates the weight reduction module, the second reinforcement assembly and at least a portion of the floor slab.

19. The building element according to claim 18, characterized in that Include at least one of the following: The floor slab comprises a plurality of the weight reduction modules, and the plurality of weight reduction modules are arrayed and distributed on the bottom plate of the floor slab; The second steel bar assembly includes a third steel bar and a fourth steel bar, the third steel bar and the fourth steel bar intersect each other, and the third steel bar and the fourth steel bar are arranged on the truss and / or the bottom plate of the floor slab.

20. The building element according to claim 11, characterized in that It includes a span beam; the span beam includes the floor slab; The cross beam member is provided with a through hole, and the through hole is used for assembling a fastener.

21. The building element according to claim 20, characterized in that The span beam also includes a truss structure, which is arranged on the bottom plate of the floor and located on one side of the truss of the floor along the width direction of the span beam.

22. The building element according to claim 20 or 21, characterized in that At least two trusses are arranged on the bottom plate of the floor slab, and the at least two trusses of the floor slab are distributed in sequence along the width direction of the span beam, and each of the trusses extends along the length direction of the span beam as a whole; The truss of the floor slab is provided with at least one through hole along at least one side of the width direction of the span beam; or, the truss structure as a whole extends along the length direction of the span beam, the truss structure is located between two adjacent trusses of the floor slab, and at least one through hole is provided between the truss structure and the truss of the floor slab.

23. The building element according to claim 11, characterized in that including composite beams; The floor slab is used as the bottom slab of the composite beam.

24. The building element according to claim 23, characterized in that The composite beam comprises: a fifth steel bar, the fifth steel bar at least comprising vertical sections located on both sides of the truss of the floor slab along the width direction of the composite beam, and the bottom of the fifth steel bar is connected to the bottom plate of the floor slab; The fifth steel bar includes at least one of the following: The fifth steel bar is U-shaped with the opening facing upward; The fifth steel bar further includes a first transverse section, both ends of which are respectively connected to the bottom ends of the vertical sections on both sides of the truss of the floor slab, and the bottom ends of the first transverse section and the vertical section are wrapped in the bottom plate of the floor slab; The number of the fifth steel bars is at least two, and at least two of the fifth steel bars are distributed along the length direction of the composite beam.

25. The building element according to claim 23, characterized in that The composite beam comprises: a sixth steel bar, the sixth steel bar at least comprising vertical sections located on both sides of the truss of the floor slab along the width direction of the composite beam, and the bottom of the sixth steel bar is connected to the bottom plate of the floor slab; The sixth steel bar includes at least one of the following: The sixth steel bar is a ring structure; The sixth steel bar further includes a second transverse section and a third transverse section, wherein the second transverse section and the third transverse section are respectively connected to the vertical section, and the second transverse section is located at the bottom of the vertical section, and the third transverse section is located at the top of the vertical section, and the bottoms of the second transverse section and the vertical section are wrapped in the bottom plate of the floor slab; The number of the sixth steel bars is at least two, and at least two of the sixth steel bars are distributed along the length direction of the composite beam.

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