Super-large-space and large-span section steel supporting steel bar truss combined floor support plate

Abstract

The utility model discloses a super-large-space and large-span section steel supporting steel bar truss combined floor support plate which comprises a frame structure, a steel bar truss and a steel bar truss, and supporting angle steel is installed on the side portion of a frame beam of the frame structure. The steel beam is connected to the embedded part; the floor body comprises a supporting steel plate and a steel bar truss, the outer edge of the supporting steel plate is in lap joint with the supporting angle steel and the steel beams, the steel bar truss comprises multiple rows of support vertical bars, support horizontal bars, upper chord steel bars, lower chord steel bars and inclined web bars, the support vertical bars are vertically arranged on the supporting steel plate, each row of support vertical bars supports one upper chord steel bar, and each row of support horizontal bars supports one lower chord steel bar. The support horizontal bars are connected to the lower portions of the support vertical bars, the two ends of the support horizontal bars on each row of support vertical bars are connected with lower chord steel bars respectively, the lower chord steel bars and the upper chord steel bars are arranged in the same direction, a plurality of inclined web bars are connected between the upper chord steel bars and the lower chord steel bars, and concrete wrapping the steel bar truss is poured on the bearing steel plate. The utility model solves the problem that the existing pure concrete structure is easy to crack when being applied to a large-space and large-span frame structure.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a composite floor deck with ultra-large space and large span steel-supported steel truss. Background Technology

[0002] With the development of large-space, long-span construction technologies, simple concrete structures are no longer sufficient to meet the needs of large-space, long-span frame structures. The heavy weight, complex construction, and susceptibility to cracking of concrete structures pose significant challenges for large-space, long-span construction. These problems are particularly pronounced in the construction of landmark buildings such as large-span stadiums, convention centers, hangars, and bridges. These issues not only severely restrict construction efficiency and cost control but also pose a potential threat to the long-term safety and service life of the buildings. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a composite floor deck with steel-supported steel trusses for ultra-large spaces and large spans is provided to solve the problem of cracking that easily occurs in existing simple concrete structures when applied to large-space, large-span frame structures.

[0004] To achieve the above objectives, a composite floor decking with ultra-large space and large span steel-supported steel truss is provided, comprising:

[0005] A frame structure, including frame columns and frame beams, wherein the frame beams are connected to multiple frame columns, and embedded parts are pre-embedded in the frame columns and the frame beams, and supporting angle steel is installed on the side of the frame beams.

[0006] A steel beam, the ends of which are connected to the embedded parts, and the top of the steel beam being flush with the top of the supporting angle steel;

[0007] The floor slab body includes a supporting steel plate and a steel truss. The outer edge of the supporting steel plate overlaps with the supporting angle steel and the steel beam. The steel truss includes multiple rows of support vertical bars, support horizontal bars, top chord bars, bottom chord bars, and diagonal web bars. The support vertical bars are erected on the supporting steel plate. Each row of support vertical bars is supported by a top chord bar. The support horizontal bars are connected to the lower part of the support vertical bars. Each end of the support horizontal bars on each row of support vertical bars is connected to a bottom chord bar. The bottom chord bars are arranged in the same direction as the top chord bars. Multiple diagonal web bars are connected between the top chord reinforcement and the bottom chord reinforcement. The diagonal web bars of two adjacent bars have opposite inclination directions. The lower ends of two adjacent diagonal web bars are connected to a slab reinforcement. The slab reinforcement is connected to the supporting steel plate. Multiple top chord reinforcements are connected to multiple upper transverse reinforcements. Multiple bottom chord reinforcements are connected to multiple lower transverse reinforcements. The multiple upper transverse reinforcements are connected to upper longitudinal reinforcements. The multiple lower transverse reinforcements are connected to lower longitudinal reinforcements. Concrete is poured on the supporting steel plate, and the concrete covers the steel truss.

[0008] Furthermore, the embedded parts in the frame beam include:

[0009] Two embedded plates are arranged opposite each other, and the two embedded plates are respectively disposed on the side of the frame beam;

[0010] An anchor bolt is connected between the two embedded plates and embedded in the frame beam.

[0011] Furthermore, the embedded parts in the frame column include:

[0012] An embedded plate is disposed on the side of the frame column;

[0013] An anchor bolt is connected to the embedded plate and embedded in the frame column.

[0014] Furthermore, the supporting angle steel includes a first flange and a second flange connected at an angle. The first flange is fixed to the side of the frame beam by chemical anchors and is supported on the outer edge of the supporting steel plate.

[0015] Furthermore, the upper ends of two adjacent diagonal web bars are connected together by connecting bars.

[0016] The beneficial effects of this utility model are as follows: By changing the traditional concrete structure and using steel supports and steel truss composite floor decking technology, the large-space, large-span steel-supported reinforced truss composite floor decking of this utility model reduces the amount of concrete used and the vertical component support system, thus enabling the effective implementation of a large-space, large-span frame structure and reducing the probability of structural cracks. Furthermore, the prefabricated truss floor decking used in this utility model allows for direct on-site assembly, reducing labor, saving construction time, and creating significant economic benefits. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a structural schematic diagram of a large-space, large-span steel-supported steel truss composite floor deck, according to an embodiment of this utility model.

[0019] Figure 2 This is a structural schematic diagram of the connection node between the steel beam and the frame column in an embodiment of this utility model.

[0020] Figure 3 This is a structural schematic diagram of the connection node between the steel beam and the frame beam in an embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram of the supporting angle steel according to an embodiment of the present utility model.

[0022] Figure 5 This is a structural schematic diagram of the connection node between the main beam and the secondary beam of the steel beam in an embodiment of this utility model.

[0023] Figure 6 This is a structural schematic diagram of the connection node between the steel beam and the floor slab body in an embodiment of this utility model.

[0024] Figure 7 This is a structural schematic diagram of the steel truss according to an embodiment of the present utility model.

[0025] Figure 8 This is a front view of the steel truss according to an embodiment of the present utility model.

[0026] Figure 9 This is a schematic diagram of the oblique web reinforcement in an embodiment of the present invention. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 9 As shown, this utility model provides a large-space, large-span steel-supported steel truss composite floor deck, including a frame structure, steel beams 2, and floor slab body 3.

[0030] Specifically, the frame structure includes frame columns 11 and frame beams 12. There are multiple frame columns. Frame beams 12 are connected to multiple frame columns 11. Embedded parts are pre-embedded in both frame columns 11 and frame beams 12. Supporting angle steel 13 is installed on the side of frame beams 12.

[0031] Steel beam 2 is an I-beam. The ends of steel beam 2 are connected to embedded parts. The top of steel beam 2 is flush with the top of the supporting angle steel 13.

[0032] In this embodiment, the steel beam includes a main beam 21 and a secondary beam 22. (See also...) Figure 5 As shown, the cross-section of the main beam is larger than that of the secondary beam. Both the main beam and the secondary beam are I-beams. The tops of the main beam and the secondary beam are flush. A stiffening plate connects the upper and lower flanges of the main beam. The stiffening plate is connected to the web. The web of the secondary beam is bolted to the stiffening plate on the main beam.

[0033] The floor slab body 3 includes a supporting steel plate 31 and a steel truss. The outer edge of the supporting steel plate 31 overlaps with the supporting angle steel 13 and the steel beam 2.

[0034] See Figure 4 As shown, the supporting angle steel 13 includes a first flange and a second flange connected at an angle. The first flange is fixed to the side of the frame beam 12 by chemical anchors. The first flange is supported by the outer edge of the supporting steel plate 31.

[0035] The supporting steel plate 31 is made of 0.5mm thick galvanized steel. The supporting angle steel is L75×75×6 angle steel, which is fixed by chemical anchors with an anchoring depth of not less than 80mm. After the chemical anchors pass the pull-out force test, the floor decking is installed.

[0036] The floor decking is spot-welded to the surrounding supporting angle steel, and disconnected at the connection with the steel beam studs. The galvanized steel sheet of the floor decking is fully welded and sealed to the flange of the steel beam.

[0037] See Figures 7 to 9 As shown, the steel truss includes multiple rows of support vertical bars 321, support horizontal bars 322, top chord bars 323, bottom chord bars 324, and diagonal web bars 325.

[0038] Specifically, the support vertical bars 321 are erected on the supporting steel plate. Each row of support vertical bars 321 is supported by an upper chord bar 323. Support horizontal bars 322 are connected to the lower part of the support vertical bars 321, and each end of the support horizontal bars 322 on each row of support vertical bars 321 is connected to a lower chord bar 324. The lower chord bars 324 are arranged in the same direction as the upper chord bars 323. Multiple diagonal web bars 325 are connected between the upper chord bars 323 and the lower chord bars 324. The inclination directions of two adjacent diagonal web bars 325 are opposite. The lower ends of two adjacent diagonal web bars 325 are connected to a slab bar 326. The slab bar 326 is connected to the supporting steel plate. Multiple upper chord bars 323 are connected to multiple upper transverse bars. Multiple lower chord bars 324 are connected to multiple lower transverse bars. Multiple upper transverse bars are connected to upper longitudinal bars. Multiple lower transverse bars are connected to lower longitudinal bars. Concrete is poured onto the supporting steel plate 31. The concrete encapsulates the steel truss.

[0039] In a preferred embodiment, the upper ends of two adjacent diagonal web ribs 325 are connected together by a connecting rib 327.

[0040] Combination Figure 1 and Figure 2 As shown, the embedded parts in the frame column 11 include embedded plate 111 and anchor rod 112.

[0041] One of the embedded plates is set on the side of the frame column 11. The anchor rod 112 is connected to the embedded plate and embedded in the frame column 11.

[0042] Combination Figure 1 and Figure 3 As shown, the embedded parts in the frame beam 12 include embedded plate 121 and anchor rod 122.

[0043] Two embedded plates 121 are arranged opposite each other. The two embedded plates are respectively set on the side of the frame beam 12. Anchor rods 122 are connected between the two embedded plates and embedded in the frame beam 12.

[0044] This utility model's ultra-large space, large span steel-supported reinforced truss composite floor decking, by changing the traditional concrete structure and using steel supports and reinforced truss composite floor decking construction technology, reduces the amount of concrete used and the vertical component support system, enabling the effective implementation of large space, large span frame structures. Furthermore, the prefabricated truss floor decking used in this utility model allows for direct on-site assembly, reducing labor, saving construction time, and creating significant economic benefits.

[0045] The entire floor slab body comprises a triangular truss, upper and lower chord reinforcement, and upper and lower layer reinforcement (horizontal and longitudinal bars) forming the floor deck reinforcement skeleton. The floor deck truss reinforcement is welded in the factory, while the truss support vertical and horizontal bars are welded on-site. The support vertical bars support the upper chord reinforcement, and the support horizontal bars support the lower chord reinforcement. The slab surface reinforcement and additional reinforcement are added according to the drawings. Slab reinforcement is pre-embedded at the interface with the concrete structure, and the pre-embedded length of the lower layer reinforcement is not less than 1.6La and not less than 700mm.

[0046] After the concealed acceptance of the steel truss and additional reinforcing bars is passed, concrete pouring shall be carried out. Before concrete pouring, the construction joints around the perimeter concrete shall be strictly treated in accordance with the requirements for construction joint treatment, and expansion waterstops shall be installed. The interface between the waterstop and the concrete shall be secured with cement nails and sealed with sealant. The concrete pouring sequence shall be symmetrical and even from the middle to both sides, with enhanced vibration to ensure the compactness of the concrete. During the pouring process, it is strictly forbidden to touch the embedded parts and embedded pipes. The surface shall be vibrated with a plate vibrator for finishing and smoothing, and then covered with a film in a timely manner. After final setting, geotextile material shall be covered in a timely manner for heat preservation and moisture retention curing, and the curing time shall not be less than 14 days.

[0047] This utility model of a large-space, large-span steel-supported reinforced truss composite floor deck not only improves construction efficiency but also reduces on-site tying work. Most of the floor deck is prefabricated in the factory, requiring only simple assembly and fixing on-site, significantly reducing the amount of on-site rebar tying work. According to relevant data, this can reduce tying work by 40% to 50%. This not only shortens the construction cycle but also reduces labor and machinery consumption. This construction method helps shorten the overall construction period and accelerate project progress. The reinforced truss floor deck eliminates the need to consider fire prevention and corrosion protection, thus reducing the cost of these measures. Through the technological innovation of this invention, substantial material and labor costs are saved.

[0048] The prefabrication of the height of the ultra-large space, large span steel-supported steel truss composite floor deck of this utility model not only reduces the erection of formwork, but also reduces the amount of steel reinforcement tied. The construction of the steel-supported steel truss composite floor deck greatly improves construction efficiency and shortens the construction period.

[0049] This utility model's ultra-large space, large-span steel-supported reinforced truss composite floor deck demonstrates the superiority of its construction design and methods for building large spaces and spans, providing valuable guidance for similar projects. Through material design, node construction design, and optimized construction procedures, the structure achieves a perfect fit for large spaces and spans, reducing wet work and steel reinforcement usage. It also demonstrates advantages in green construction, aligning with the development goals of a resource-saving, energy-efficient, and environmentally friendly society.

[0050] Compared with traditional reinforced concrete structures, the construction of the super-large space, large span steel-supported steel truss composite floor deck of this utility model has the advantages of eliminating the need for scaffolding and bottom formwork support, allowing for multi-story simultaneous construction and cross-operation, which greatly improves construction efficiency, saves construction time, and has significant economic benefits.

[0051] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A super large space, large span steel support reinforced truss composite floor support plate, characterized in that, include: A frame structure, including frame columns and frame beams, wherein the frame beams are connected to multiple frame columns, and embedded parts are pre-embedded in the frame columns and the frame beams, and supporting angle steel is installed on the side of the frame beams. A steel beam, the ends of which are connected to the embedded parts, and the top of the steel beam being flush with the top of the supporting angle steel; The floor slab body includes a supporting steel plate and a steel truss. The outer edge of the supporting steel plate overlaps with the supporting angle steel and the steel beam. The steel truss includes multiple rows of support vertical bars, support horizontal bars, top chord bars, bottom chord bars, and diagonal web bars. The support vertical bars are erected on the supporting steel plate. Each row of support vertical bars is supported by a top chord bar. The support horizontal bars are connected to the lower part of the support vertical bars. Each end of the support horizontal bars on each row of support vertical bars is connected to a bottom chord bar. The bottom chord bars are arranged in the same direction as the top chord bars. Multiple diagonal web bars are connected between the top chord reinforcement and the bottom chord reinforcement. The diagonal web bars of two adjacent bars have opposite inclination directions. The lower ends of two adjacent diagonal web bars are connected to a slab reinforcement. The slab reinforcement is connected to the supporting steel plate. Multiple top chord reinforcements are connected to multiple upper transverse reinforcements. Multiple bottom chord reinforcements are connected to multiple lower transverse reinforcements. The multiple upper transverse reinforcements are connected to upper longitudinal reinforcements. The multiple lower transverse reinforcements are connected to lower longitudinal reinforcements. Concrete is poured on the supporting steel plate, and the concrete covers the steel truss.

2. The super large space, large-span steel bracing reinforced truss composite floor support slab according to claim 1, characterized in that, The embedded parts in the frame beam include: Two embedded plates are arranged opposite each other, and the two embedded plates are respectively disposed on the side of the frame beam; An anchor bolt is connected between the two embedded plates and embedded in the frame beam.

3. The super large space, large-span steel bracing reinforced truss composite floor support slab according to claim 1, characterized in that, The embedded parts in the frame column include: An embedded plate is disposed on the side of the frame column; An anchor bolt is connected to the embedded plate and embedded in the frame column.

4. The super large space, long-span steel bracing reinforced truss composite floor support slab according to claim 1, characterized in that, The supporting angle steel includes a first flange and a second flange connected at an angle. The first flange is fixed to the side of the frame beam by chemical anchors and is supported on the outer edge of the supporting steel plate.

5. The super large space, long-span steel bracing reinforced truss composite floor support slab according to claim 1, characterized in that, The upper ends of two adjacent diagonal web bars are connected together by a connecting bar.

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