Truss and floor slab

Abstract

The utility model provides a truss and a floor slab. The truss comprises two web bars, the overall length of each web bar extends in the first direction, and each web bar is in a wave shape and is provided with an upper anti-bending part and a lower anti-bending part which are sequentially distributed in a staggered mode; the first transverse bars extend in the second direction intersecting with the first direction, and the first transverse bars are arranged in one-to-one correspondence with the upper anti-bending parts of the two web bars and fixedly connected with the two web bars respectively; the first longitudinal bars are fixedly connected with the first transverse bars respectively; and on the section perpendicular to the first direction, the distance between the lower anti-bending parts of the two web bars is larger than that between the upper anti-bending parts of the two web bars. The distance between the lower anti-bending parts is increased, the stress area of the truss on the bottom plate is enlarged, and stress is more reasonable.

Description

Technical Field

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

[0002] Composite floor slabs (also known as composite slabs) are assembled integral floor slabs made of precast panels and cast-in-place reinforced concrete layers, including trusses and base plates.

[0003] In related technologies, the web reinforcement of traditional trusses intersects at one point at the top to form a triangle. The spacing at the bottom of the truss is too small, resulting in too small a spacing between the intersections of the truss and the lower base plate, and too narrow a force transmission area, causing unreasonable force. Utility Model Content

[0004] In response to the shortcomings of the existing methods, this application proposes a truss and floor slab to solve the technical problem in the related technology that the spacing between the lower parts of the trusses is too small, resulting in too small a spacing between the intersection points of the trusses and the lower base plate, too narrow a force transmission area, and unreasonable force.

[0005] In a first aspect, an embodiment of the present application provides a truss, comprising:

[0006] Two abdominal muscles, wherein the entire length of the abdominal muscles extends along the first direction, the abdominal muscles are wavy, and have upper and lower curved portions that are alternately distributed;

[0007] a plurality of first transverse ribs, the first transverse ribs extending along a second direction intersecting the first direction, the first transverse ribs being arranged in a one-to-one correspondence with the upper inverted portions of the two web ribs and being fixedly connected to the two web ribs respectively;

[0008] The first longitudinal reinforcement is respectively fixedly connected to the plurality of first transverse reinforcements;

[0009] In the cross section perpendicular to the first direction, the spacing between the lower inflected portions of the two web ribs is greater than the spacing between the upper inflected portions.

[0010] Optionally, at least one of the following is included:

[0011] The first transverse reinforcement is located at the top or bottom of the upper recurve;

[0012] The two web reinforcements are arranged axially symmetrically with respect to the perpendicular midline of the first transverse reinforcement.

[0013] Optionally, at least one of the following is included:

[0014] The first longitudinal reinforcement is arranged in the middle of the first transverse reinforcement and is located above or below the first transverse reinforcement;

[0015] The first longitudinal ribs extend along a first direction.

[0016] Optionally, the truss further comprises a second longitudinal reinforcement;

[0017] The second longitudinal reinforcement is located at the top of the upper reverse bend, and the web reinforcement is connected to the first transverse reinforcement through the second longitudinal reinforcement;

[0018] or,

[0019] The second longitudinal reinforcement is located on at least one of the inner side and the outer side of the upper reverse bending portion, and the second longitudinal reinforcement, the abdominal reinforcement and the first transverse reinforcement are connected in pairs.

[0020] Optionally, at least one of the following is included:

[0021] At least one of the two web reinforcements is provided with a corresponding second longitudinal reinforcement;

[0022] At least one second longitudinal reinforcement is provided corresponding to one web reinforcement;

[0023] The second longitudinal ribs extend along the first direction.

[0024] Optionally, the truss further comprises a bottom chord, and a bottom chord is provided at the lower inflection portion of at least one of the two web bars;

[0025] Include at least one of the following:

[0026] At least one lower chord is provided corresponding to one web reinforcement, and the lower chord is located at the bottom or side of the lower recurved portion;

[0027] The bottom chord extends along a first direction.

[0028] Optionally, the truss further includes an upper chord rib, which is respectively fixed to the two web ribs, the plurality of first transverse ribs and the first longitudinal ribs, and is located at the upper inflection portion.

[0029] Optionally, at least one of the following is included:

[0030] The upper chord rib extends along the first direction and serves as a strip-shaped upper chord rib;

[0031] In a cross section perpendicular to the first direction, the cross section of the upper chord rib is rectangular, trapezoidal or oblong.

[0032] Optionally, at least one of the following is included:

[0033] At least one of the upper recurves of any abdominal muscle is arc-shaped;

[0034] At least one upper inflection of any web is a straight section;

[0035] At least one of the lower recurves of any abdominal muscle is arc-shaped;

[0036] At least one lower inflection portion of any web muscle is a straight section.

[0037] In a second aspect, an embodiment of the present application provides a floor slab, comprising:

[0038] Such as the trusses mentioned above;

[0039] A plurality of second transverse reinforcements, corresponding one to one with the plurality of lower inverted portions of the web reinforcements of the truss, and the second transverse reinforcements are laid between two web reinforcements;

[0040] a third longitudinal reinforcement, provided on the plurality of second transverse reinforcements;

[0041] The bottom plate is respectively fixedly connected to the lower inverted parts of the two web reinforcements, a plurality of second transverse reinforcements and the third longitudinal reinforcement.

[0042] The beneficial technical effects brought about by the technical solutions provided in the embodiments of the present application include:

[0043] In the embodiment of the present application, the web of the truss is wavy, having a plurality of upper and lower concave portions that are staggered in sequence. The entire length of each of the two webs extends along the first direction. A plurality of first transverse ribs are spaced in sequence along the first direction. Each first transverse rib extends along the second direction. One end of a first transverse rib corresponds to an upper concave portion of a web, and the other end corresponds to an upper concave portion of another web. The two ends of a first transverse rib are respectively fixedly connected to the two webs, and the connection point is located at the upper concave portions of the two webs. The plurality of first transverse ribs are fixedly connected together by first longitudinal ribs. In a cross section perpendicular to the first direction, the spacing between the lower concave portions of the two webs is greater than the spacing between the upper concave portions. The truss provided in the embodiment of the present application increases the spacing between the lower concave portions, thereby increasing the spacing between the intersections of the truss and the base plate. This can expand the stress-bearing area of ​​the base plate that bears the force transmitted by the truss, making the stress more reasonable.

[0044] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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:

[0046] Figure 1 A schematic structural diagram of a truss provided in an embodiment of the present application;

[0047] Figure 2 A side view of a specific example of a truss provided in an embodiment of the present application;

[0048] Figure 3 for Figure 2 Main view of the center truss;

[0049] Figure 4 A side view of another specific example of a truss provided in an embodiment of the present application;

[0050] Figure 5 for Figure 4 Main view of the center truss;

[0051] Figure 6 A side view of another specific example of a truss provided in an embodiment of the present application;

[0052] Figure 7 for Figure 6 Main view of the center truss;

[0053] Figure 8 A side view of another specific example of a truss provided in an embodiment of the present application;

[0054] Figure 9 for Figure 8 Main view of the center truss;

[0055] Figure 10 A side view of a specific embodiment of a truss provided in an embodiment of the present application (the first longitudinal reinforcement is not shown);

[0056] Figure 11 A side view of another specific embodiment of a truss provided in an embodiment of the present application (the first longitudinal reinforcement is not shown);

[0057] Figure 12 A side view of another specific implementation of a truss provided in an embodiment of the present application (the first longitudinal reinforcement is not shown);

[0058] Figure 13 A side view of a specific embodiment of a truss provided in an embodiment of the present application (the first longitudinal reinforcement is not shown);

[0059] Figure 14 A side view of another specific embodiment of a truss provided in an embodiment of the present application (the first longitudinal reinforcement is not shown);

[0060] Figure 15 A side view of another specific embodiment of a truss provided in an embodiment of the present application (the first longitudinal reinforcement is not shown);

[0061] Figure 16 A schematic structural diagram of a specific example of a web reinforcement of a truss provided in an embodiment of the present application;

[0062] Figure 17 A schematic structural diagram of another specific example of a web reinforcement of a truss provided in an embodiment of the present application;

[0063] Figure 18 A schematic structural diagram of another specific example of a web reinforcement of a truss provided in an embodiment of the present application;

[0064] Figure 19A schematic structural diagram of another specific example of a web reinforcement of a truss provided in an embodiment of the present application;

[0065] Figure 20 A side view of a specific example of a floor slab provided in an embodiment of the present application;

[0066] Figure 21 for Figure 20 Main view of the mid-floor slab.

[0067] Reference numerals:

[0068] 1-Abdominal tendon; 2-Upper recurved part; 3-First transverse tendon; 4-First longitudinal tendon; 5-Lower recurved part; 6-Second longitudinal tendon; 7-Lower chord tendon;

[0069] 11-the second transverse rib; 12-the bottom plate; 13-the third longitudinal rib. DETAILED DESCRIPTION

[0070] The following describes the embodiments of the present application in conjunction with the accompanying drawings. It should be understood that the embodiments described below in conjunction with the accompanying 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.

[0071] Those skilled in the art will understand that, unless otherwise stated, the terms "said" and "the" used herein may also include plural forms. It should be further understood that the term "including" used in the specification of this 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" can be implemented as "A", or as "B", or as "A and B".

[0072] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0073] The trusses and floor slabs provided in this application are intended to solve the above technical problems in related technologies.

[0074] 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-mentioned technical problems with specific embodiments. It should be noted that the following embodiments can refer to, draw on, or combine with each other, and the same terms, similar features, and similar implementation steps in different embodiments will not be repeated.

[0075] The embodiment of the present application provides a truss, the structural diagram of which is as follows: Figure 1As shown, it includes: two web ribs 1, multiple first transverse ribs 3 and first longitudinal ribs 4.

[0076] like Figures 2 to 9 As shown, the entire length of the web rib 1 extends along the first direction, the web rib 1 is wavy, and has upper and lower reversed portions 2 and 5 that are staggered in sequence; the first transverse ribs 3 extend along a second direction intersecting the first direction, and the first transverse ribs 3 are arranged in a one-to-one correspondence with the upper reversed portions 2 of each of the two web ribs 1, and are respectively fixedly connected to the two web ribs 1; the first longitudinal ribs 4 are respectively fixedly connected to multiple first transverse ribs 3; wherein, on a section perpendicular to the first direction, the spacing a of the lower reversed portions 5 of the two web ribs 1 is greater than the spacing b of the upper reversed portions 2.

[0077] In the embodiment of the present application, the web reinforcement 1 of the truss is wavy and has a plurality of upper and lower concave portions 2 and 5 that are staggered in sequence. The entire length of each of the two web reinforcements 1 extends along the first direction. A plurality of first transverse reinforcements 3 are spaced apart in sequence along the first direction. Each first transverse reinforcement 3 extends along the second direction. One end of a first transverse reinforcement 3 corresponds to an upper concave portion 2 of one web reinforcement 1, and the other end corresponds to an upper concave portion 2 of another web reinforcement 1. The two ends of a first transverse reinforcement 3 are respectively fixedly connected to the two web reinforcements 1, and the connection points are located at the upper concave portions 2 of the two web reinforcements 1. The plurality of first transverse reinforcements 3 are fixedly connected together by first longitudinal reinforcements 4. In a cross section perpendicular to the first direction, the spacing a between the lower concave portions 5 of the two web reinforcements 1 is greater than the spacing b between the upper concave portions 2. The truss provided in the embodiment of the present application increases the spacing a between the lower concave portions 5, thereby increasing the spacing between the intersections of the truss and the base plate. This can expand the stress-bearing area of ​​the base plate that bears the force transmitted by the truss, making the stress distribution more reasonable.

[0078] Optionally, in an embodiment of the present application, the first direction and the second direction are perpendicular to each other.

[0079] Of course, in some other optional embodiments of the present application, the first direction and the second direction can be made to intersect but not be perpendicular according to actual needs. In this case, in the embodiment of the present application, on the cross section perpendicular to the first direction, the spacing a of the lower inflection portions 5 of the two web ribs 1 includes the spacing of the orthographic projections of the lower inflection portions 5 of the two web ribs 1 on the cross section; on the cross section perpendicular to the first direction, the spacing b of the upper inflection portions 2 of the two web ribs 1 includes the spacing of the orthographic projections of the upper inflection portions 2 of the two web ribs 1 on the cross section.

[0080] Alternatively, as Figure 2 、 Figure 4 、 Figure 6 and Figure 8 As shown, in the embodiment of the present application, the two web ribs 1 are arranged axially symmetrically with respect to the perpendicular midline of the first transverse rib 3. This arrangement helps to improve the structural symmetry of the truss and makes the force more uniform and reasonable.

[0081] Alternatively, as Figures 2 to 5 As shown, in the embodiment of the present application, the first transverse rib 3 is located at the top of the upper reverse bend 2. At this time, optionally, as Figure 2 and Figure 3 As shown in FIG, in the embodiment of the present application, the first longitudinal rib 4 is arranged in the middle of the first transverse rib 3 and is located above the first transverse rib 3. Of course, as Figure 4 and Figure 5 As shown, in some other optional embodiments of the present application, the first longitudinal rib 4 can also be arranged in the middle of the first transverse rib 3 and below the first transverse rib 3.

[0082] Of course, if Figures 6 to 9 As shown, in some other optional embodiments of the present application, the first transverse rib 3 can also be located at the bottom of the upper reverse bend 2 according to actual needs. Figure 6 and Figure 7 As shown in FIG, in the embodiment of the present application, the first longitudinal rib 4 is arranged in the middle of the first transverse rib 3 and is located above the first transverse rib 3. Of course, as Figure 8 and Figure 9 As shown, in some other optional embodiments of the present application, the first longitudinal rib 4 can also be arranged in the middle of the first transverse rib 3 and below the first transverse rib 3.

[0083] Alternatively, as Figure 3 As shown, in the embodiment of the present application, the first longitudinal ribs 4 extend along the first direction. The first longitudinal ribs 4 are parallel to the web ribs 1 and are arranged perpendicular to the first transverse ribs 3, and are respectively connected to multiple first transverse ribs 3. The first longitudinal ribs 4 are continuous longitudinal ribs.

[0084] Alternatively, as Figure 10 As shown, in the embodiment of the present application, the truss further includes a second longitudinal reinforcement 6 ; the second longitudinal reinforcement 6 is located at the top of the upper inflection portion 2 , and the web reinforcement 1 is connected to the first transverse reinforcement 3 through the second longitudinal reinforcement 6 .

[0085] Of course, if Figure 11 and Figure 12 As shown, in some other optional embodiments of the present application, the second longitudinal rib 6 can also be located on the inner side of the upper reverse bend 2 (such as Figure 11 shown) and lateral (e.g. Figure 12 As shown in the figure, at least one side of the second longitudinal reinforcement 6 is located on the inner side, outer side or both inner and outer sides of the upper reverse bent portion 2, and the second longitudinal reinforcement 6, the web reinforcement 1 and the first transverse reinforcement 3 are connected in pairs.

[0086] In the embodiment of the present application, a second longitudinal rib 6 can be provided at the top, inner side, outer side, or both inner and outer sides of the upper reverse bend 2 of the web rib 1. The second longitudinal rib 6 is respectively connected to the web rib 1 and the first transverse rib 3, which can increase the upper chord stiffness and tensile performance and eliminate the spring effect of the wave rib.

[0087] Optionally, in the embodiment of the present application, the second longitudinal reinforcement 6 is a longitudinal steel bar.

[0088] Alternatively, as Figures 10 to 12 As shown, in the embodiment of the present application, at least one of the two web ribs 1 is correspondingly provided with a second longitudinal rib 6 .

[0089] Optionally, in the embodiment of the present application, at least one second longitudinal rib 6 is provided corresponding to one web rib 1 .

[0090] Optionally, in the embodiment of the present application, the second longitudinal ribs 6 extend along the first direction, are parallel to the web ribs 1 , and are perpendicular to the first transverse ribs 3 .

[0091] Optionally, in the embodiment of the present application, the first longitudinal reinforcement 4 and the second longitudinal reinforcement 6 serve as upper chord reinforcements of the truss.

[0092] Alternatively, as Figures 13 to 15 As shown, in the embodiment of the present application, the truss further includes a lower chord 7 , and a lower chord 7 is provided at the lower inflection portion 5 of at least one of the two web bars 1 .

[0093] Alternatively, as Figure 13 As shown, in the embodiment of the present application, one web rib 1 is correspondingly provided with at least one lower chord rib 7 , and the lower chord rib 7 is located at the bottom of the lower recurved portion 5 .

[0094] Of course, if Figure 14 and Figure 15 As shown, in some other optional embodiments of the present application, according to actual needs, one web rib 1 may be provided with at least one lower chord rib 7 , and the lower chord rib 7 may be located on the side of the lower inflection portion 5 .

[0095] Alternatively, as Figure 13 As shown, in the embodiment of the present application, one web rib 1 is correspondingly provided with two lower chord ribs 7 , one lower chord rib 7 is located at the bottom of the lower concave portion 5 , and the other is located at the side of the lower concave portion 5 .

[0096] Optionally, as shown in the figure, in the embodiment of the present application, a lower chord rib 7 (such as Figure 13 As shown), two or more lower chords 7 may also be provided (as Figure 14 shown).

[0097] like Figures 13 to 15 As shown, in the embodiment of the present application, the bottom 0 mm to 50 mm of the lower inflection portion 5 of each side web reinforcement 1 can be connected by one or two longitudinal steel bars to form a lower chord reinforcement 7, which can enhance the tensile performance of the lower part of the truss.

[0098] Optionally, the lower chord reinforcement 7 is a longitudinal steel bar.

[0099] Optionally, in the embodiment of the present application, the lower chord rib 7 extends along the first direction, is parallel to the web rib 1 , and is perpendicular to the first transverse rib 3 .

[0100] Optionally, in the embodiment of the present application, the truss further includes an upper chord rib (not shown), which is respectively fixedly connected to the two web bars 1, the plurality of first transverse bars 3, and the first longitudinal bars 4, and is located at the upper inflection portion 2. The upper inflection portion 2 of the two web bars 1, the plurality of first transverse bars 3, and the first longitudinal bars 4 are connected together by the upper chord rib.

[0101] Optionally, in the embodiment of the present application, the upper chord ribs extend along the first direction as strip-shaped upper chord ribs, and are parallel to the web ribs 1 and the first longitudinal ribs 4 , and perpendicular to the first transverse ribs 3 .

[0102] Optionally, in an embodiment of the present application, in a cross section perpendicular to the first direction, the cross-sectional shape of the upper chord rib is rectangular, trapezoidal, or oblong.

[0103] Optionally, in an embodiment of the present application, the material of the upper chord rib includes concrete, and the upper chord rib serves as a concrete upper chord rib, wrapping the upper inflection portion 2 of the web reinforcement 1, the first transverse reinforcement 3, the first longitudinal reinforcement 4 and the second longitudinal reinforcement 6.

[0104] In the embodiment of the present application, the upper inverted portion 2 of the web reinforcement 1, the first transverse reinforcement 3, the first longitudinal reinforcement 4 and the second longitudinal reinforcement 6 can be wrapped by strip concrete (i.e., the upper chord rib), and the cross-section of the strip concrete is rectangular, trapezoidal or oblong to form a concrete upper chord rib, thereby making a strip concrete upper chord rib and a wavy steel web reinforcement truss, further enhancing the compressive resistance and stability of the upper chord.

[0105] Alternatively, as Figure 16 and Figure 19 As shown, in the embodiment of the present application, at least one upper inflection portion 2 of any web rib 1 is arc-shaped.

[0106] Of course, if Figure 17 and Figure 18 As shown, in some other optional embodiments of the present application, at least one upper inflection portion 2 of any web rib 1 can be made into a straight section according to actual needs.

[0107] Alternatively, as Figure 16 and Figure 17 As shown, in the embodiment of the present application, at least one lower inflection portion 5 of any web rib 1 is arc-shaped.

[0108] Of course, if Figure 18 and Figure 19 As shown, in some other optional embodiments of the present application, at least one lower inflection portion 5 of any web rib 1 can be made into a straight section according to actual needs.

[0109] In the embodiment of the present application, the upper inflection portion 2 and the lower inflection portion 5 of the web rib 1 can be arc-shaped or straight sections, which allows for flexible selection based on engineering stress and welding point requirements while saving steel.

[0110] Optionally, in an embodiment of the present application, an automatic production line for steel trusses is used to repeatedly and continuously bend two steel bars in reverse into a wavy shape as two web reinforcements 1, and at the same time, the upper reverse bends 2 of the two web reinforcements 1 are welded together by the first transverse reinforcement 3, and the upper or lower middle part of the first transverse reinforcement 3 is welded together by the first longitudinal reinforcement 4, and the spacing a between the lower reverse bends 5 of the two web reinforcements 1 is greater than the spacing b between the upper reverse bends 2, forming a steel truss with a saddle-shaped cross-section, and the truss cross-section is symmetrical on the left and right.

[0111] Afterwards, the second longitudinal reinforcement 6 and the lower chord reinforcement 7 can be automatically welded to the upper and lower inflection portions 2 and 5 of the two web reinforcements 1 as required to obtain a saddle-shaped truss.

[0112] Then, the saddle-shaped truss made in the previous step is placed upside down in the concrete upper chord rib formwork, and the concrete is poured and taken out when the strength requirement is reached, thereby making a strip concrete upper chord rib wave-type web reinforcement truss.

[0113] The truss provided in the embodiment of the present application can be applied to composite slabs or floor decking.

[0114] Based on the same inventive concept, the embodiment of the present application provides a floor slab, the structural diagram of which is as follows: Figure 20 and Figure 21 As shown, the floor slab includes: the trusses mentioned above, a plurality of second transverse ribs 11 , third longitudinal ribs 13 and a bottom plate 12 .

[0115] The multiple second transverse reinforcements 11 correspond one-to-one to the multiple lower inflection portions 5 of the web reinforcement 1 of the truss, and the second transverse reinforcements 11 are spanned between the two web reinforcements 1; the third longitudinal reinforcements 13 are arranged on the multiple second transverse reinforcements 11; and the bottom plate 12 is respectively fixedly connected to the lower inflection portions 5 of the two web reinforcements 1, the multiple second transverse reinforcements 11 and the third longitudinal reinforcements 13.

[0116] In the embodiment of the present application, the multiple second transverse reinforcements 11 correspond one-to-one to the multiple lower inflection parts 5 of the two web reinforcements 1 of the truss, and the two ends of the second transverse reinforcement 11 are respectively placed on one lower inflection part 5 of the two web reinforcements 1, so that the second transverse reinforcement 11 is placed between the two web reinforcements 1, and the third longitudinal reinforcement 13 is arranged on the multiple second transverse reinforcements 11. The lower inflection parts 5 of the two web reinforcements 1, the multiple second transverse reinforcements 11 and the third longitudinal reinforcement 13 can be connected together through the bottom plate 12.

[0117] Optionally, in the embodiment of the present application, the material of the bottom plate 12 includes concrete, and the bottom plate 12 serves as a concrete slab, wrapping the lower inverted portions 5 of the two web reinforcements 1, the plurality of second transverse reinforcements 11 and the third longitudinal reinforcement 13.

[0118] 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 repeated here.

[0119] Optionally, in the embodiment of the present application, the floor slab is a composite slab. Of course, in other embodiments, the floor slab can also be a floor decking plate.

[0120] Based on the same inventive concept, an embodiment of the present application provides a building component, which includes the floor slab as described above.

[0121] Optionally, in an embodiment of the present application, the building component includes at least one of a staircase, a floor, a span beam and a composite beam.

[0122] Specifically, the floor slab can be used as a base plate, with steel bars tied to the top and concrete poured to form a composite staircase. Alternatively, a weight-reducing block or composite box can be placed on the floor slab, with steel bars tied to the top and concrete poured to form a hollow floor. Alternatively, the floor slab can be used as a span beam, with holes provided at the span beam location for the insertion of bolts. The span beam generates negative bending moments, so conventional trusses can be added. Alternatively, the trusses can be used as base plate reinforcement to form the base plate of a composite beam.

[0123] It should be noted that, since the building components of the embodiment of the present application include the floor slab of the embodiment of the present application, the building components of the embodiment of the present application also have the above-mentioned beneficial effects of the floor slab of the embodiment of the present application, which will not be repeated here.

[0124] By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

[0125] In the embodiment of the present application, the web of the truss is wavy, having a plurality of upper and lower concave portions that are staggered in sequence. The entire length of each of the two webs extends along the first direction. A plurality of first transverse ribs are spaced in sequence along the first direction. Each first transverse rib extends along the second direction. One end of a first transverse rib corresponds to an upper concave portion of a web, and the other end corresponds to an upper concave portion of another web. The two ends of a first transverse rib are respectively fixedly connected to the two webs, and the connection point is located at the upper concave portions of the two webs. The plurality of first transverse ribs are fixedly connected together by first longitudinal ribs. In a cross section perpendicular to the first direction, the spacing between the lower concave portions of the two webs is greater than the spacing between the upper concave portions. The truss provided in the embodiment of the present application increases the spacing between the lower concave portions, thereby increasing the spacing between the intersections of the truss and the base plate. This can expand the stress-bearing area of ​​the base plate that bears the force transmitted by the truss, making the stress more reasonable.

[0126] 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 device or component referred to 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.

[0127] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0128] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0129] 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.

[0130] The above is only part of the implementation methods 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 solution of the present application, other similar implementation methods based on the technical ideas of the present application also fall within the protection scope of the embodiments of the present application.

Claims

1. A truss, characterized in that: include: Two webs, each web extending in a first direction, each web being wavy and having upper and lower curved portions that are alternately distributed; a plurality of first transverse ribs, each of the first transverse ribs extending along a second direction intersecting the first direction, the first transverse ribs being disposed in a one-to-one correspondence with each upper inverted portion of the two web ribs and being fixedly connected to the two web ribs; first longitudinal reinforcements, respectively fixedly connected to the first transverse reinforcements; Wherein, on a cross section perpendicular to the first direction, a distance between the lower inflected portions of the two web ribs is greater than a distance between the upper inflected portions.

2. The truss according to claim 1, wherein: Include at least one of the following: The first transverse rib is located at the top or bottom of the upper reverse bend; The two web ribs are arranged axially symmetrically with respect to the perpendicular midline of the first transverse rib.

3. The truss according to claim 1, wherein: Include at least one of the following: The first longitudinal rib is arranged in the middle of the first transverse rib and is located above or below the first transverse rib; The first longitudinal ribs extend along the first direction.

4. The truss according to claim 1, wherein: Also included is the second longitudinal reinforcement; The second longitudinal reinforcement is located at the top of the upper inverted portion, and the web reinforcement is connected to the first transverse reinforcement via the second longitudinal reinforcement; or, The second longitudinal reinforcement is located on at least one of the inner side and the outer side of the upper reverse bent portion, and the second longitudinal reinforcement, the web reinforcement and the first transverse reinforcement are connected in pairs.

5. The truss according to claim 4, characterized in that Include at least one of the following: At least one of the two web ribs is correspondingly provided with the second longitudinal rib; Each of the web reinforcements is correspondingly provided with at least one of the second longitudinal reinforcements; The second longitudinal rib extends along the first direction.

6. The truss according to claim 1, wherein: It also includes a lower chord bar, wherein at least one of the two web bars is provided with the lower recurved portion of the lower chord bar; Include at least one of the following: At least one lower chord rib is correspondingly provided to each web rib, and the lower chord rib is located at the bottom or side of the lower recurved portion; The lower chord extends along the first direction.

7. The truss according to any one of claims 1 to 6, characterized in that It also includes an upper chord rib, which is respectively fixed to the two web ribs, a plurality of the first transverse ribs and the first longitudinal ribs, and is located at the upper inflection portion.

8. The truss according to claim 7, wherein: Include at least one of the following: The upper chord rib extends along the first direction and serves as a strip-shaped upper chord rib; In a cross section perpendicular to the first direction, the cross section of the upper chord rib is rectangular, trapezoidal or oblong.

9. The truss according to any one of claims 1 to 6, characterized in that Include at least one of the following: At least one upper inflection portion of any of the web muscles is arc-shaped; At least one upper inflection portion of any of the web ribs is a straight section; At least one lower inverted portion of any of the web ribs is arc-shaped; At least one lower inflection portion of any of the web ribs is a straight section.

10. A floor slab, characterized in that: include: The truss according to any one of claims 1 to 9; A plurality of second transverse reinforcements, corresponding one-to-one to a plurality of lower inverted portions of the web reinforcements of the truss, and the second transverse reinforcements are spanned between two of the web reinforcements; a third longitudinal rib, provided on the plurality of said second transverse ribs; The bottom plate is respectively fixedly connected to the lower inverted parts of the two web ribs, a plurality of the second transverse ribs and the third longitudinal ribs.

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