Modular truss support structure for steel floor deck

Abstract

The utility model relates to a steel structure floor support plate modular truss support structure, solve the floor pouring construction inefficiency of steel structure building and the construction high efficiency of steel structure assembly do not match, at present lack a kind of floor support plate support structure using steel frame system as support point problem. The parallel I-beam of this structure is provided with several support trusses supporting the bottom surface of floor support plate, the both ends of support truss are provided with support module respectively, several truss modules are connected in series between the support module of both ends, and the outer end of support module is erected between the upper beam plate and lower beam plate of I-beam. The utility model makes full use of the bearing capacity of steel structure frame itself, erects the support system without landing, is used for floor support plate support in floor cover pouring process, and construction efficiency is high, does not need to occupy the space between floors, can realize the cross operation of floor, and multi-storey synchronous pouring construction.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure buildings and relates to a modular truss support structure for steel structure floor decking. Background Technology

[0002] In prefabricated steel structure buildings, cast-in-place reinforced concrete floor slabs are commonly used when the assembly rate requirement is not high. In cast-in-place reinforced concrete floor slabs in steel structure buildings, floor slabs are laid between the horizontal steel beams of each floor. Reinforcing bars are then used to connect the floor slabs laterally, fixing them to the steel beams, and then concrete is poured on top of the floor slabs. During the floor slab laying process, stable support is required underneath the floor slabs. Traditionally, floor slab laying involves erecting a full-span scaffolding system to form a support system. Traditional scaffolding construction is slow, while steel structure assembly is efficient, resulting in a significant mismatch in construction progress. Furthermore, the full-span scaffolding support method also requires foundation support underneath, necessitating that the steel structure building also requires pouring the floor slab layer by layer from the bottom up. This construction method is inefficient and fails to leverage the advantages of steel structure prefabricated construction efficiency.

[0003] On the other hand, after the steel columns and beams are installed, the steel frame system itself has sufficient load-bearing capacity. Using steel beams as support points allows the formwork support system to be installed without touching the ground, saving floor space and enabling cross-operation between multiple floors, significantly accelerating construction efficiency. The key issue in this construction method is how to design a support system that allows for rapid and standardized construction, and how to build a non-grounded support structure within the steel frame system for floor slab pouring. Currently, there is no widely adopted modular truss support structure for steel structure floor slabs. Summary of the Invention

[0004] The purpose of this utility model is to solve the mismatch between the low efficiency of floor slab pouring construction and the high efficiency of steel structure assembly construction in steel structure buildings. Currently, there is a lack of floor deck support structures that utilize steel frame systems as support points. This utility model provides a modular truss support structure for steel structure floor decks, which uses pre-built steel beams and columns as support points and is modularly assembled to form a floor deck support system. This enables simultaneous construction of multiple floors in steel structure buildings, thereby improving the construction efficiency of steel structure buildings.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a modular truss support structure for steel floor decking, including steel I-beams, the I-beams forming a frame for the floor plan, floor decking laid inside the frame, and a number of support trusses supporting the bottom surface of the floor decking arranged between the parallel I-beams on both sides of the frame. Support modules are respectively set at both ends of the support trusses, and a number of truss modules are connected in series between the support modules at both ends. The outer end of the support module is supported between the upper and lower beams of the I-beam, and the inner end of the support module is provided with a connecting plate. The two ends of the truss module are respectively provided with connecting plates, and the connecting plates of adjacent modules are aligned with each other and locked with bolts. The support module is provided with a vertical jack, which is supported between the lower and upper beams of the I-beam. The support module is also provided with a horizontal jack, the inner end of which is supported on the web of the I-beam.

[0006] This structure utilizes the load-bearing capacity of the assembled steel columns and beams. Modular support trusses are evenly installed between parallel I-beams within the horizontal frame. Each support truss consists of support modules that connect to the I-beams at their ends and truss modules between these end support modules. The number of truss modules can be increased or decreased according to the spacing of the parallel I-beams, and the truss modules can be designed in different lengths for easy splicing. Floor decking is laid on the support structure composed of I-beams and support trusses, and then bundled and welded together. Concrete for the floor slab is poured on top of the floor decking. This device fully utilizes the load-bearing capacity of the steel frame, erecting a support system that does not require grounding, resulting in high construction efficiency. It does not occupy space between floors, allowing for cross-floor operations and simultaneous multi-level pouring. After the floor slab is poured, the support trusses can be dismantled and reused.

[0007] Preferably, the truss module includes a fixed truss module, which includes an upper chord and a lower chord, with a web member provided between the upper chord and the lower chord.

[0008] Preferably, the truss module further includes an adjustable truss module, which includes an upper chord and a lower chord, with a web member between the upper and lower chords. The adjustable truss module includes a first truss section and a second truss section. The end face of the first truss section is aligned with the upper and lower chords and has insert chords. The upper and lower chords of the second truss section are sleeve structures, and the two insert chords can be telescopically inserted into the upper and lower chords of the second truss section. The ends of the upper and lower chords of the second truss section are provided with locking plates, which are clamped onto the insert chords and locked with bolts.

[0009] The truss module can be made up of multiple standard length fixed truss modules connected in series, and then one or two adjustable truss modules can be set at one or both ends to achieve overall length adjustment of the supporting truss, so that the supporting modules at both ends can form reliable support at the I-beam.

[0010] Preferably, the connecting plates are provided at both the upper and lower parts of the support module, and at both ends of the truss module. The positions of the connecting plates are aligned with the upper and lower chords to ensure structural strength.

[0011] Preferably, the truss module is equipped with only a T-shaped extension plate. The lower part of the T-shaped extension plate includes two vertical clamping plates, and between the two vertical clamping plates is a clamping groove for holding the truss module. The top of the T-shaped extension plate is a horizontal plate, and triangular reinforcing ribs are provided between the bottom surface of the horizontal plate and the outer walls of the two vertical clamping plates. The T-shaped extension plate increases the contact area of ​​the floor decking, ensuring the support effect.

[0012] Preferably, two vertical jacks are symmetrically arranged on the left and right sides of the support module. The top of the vertical jack is a sleeve section and the upper end is a piston section. An integral base plate is provided below the sleeve section of the two vertical jacks. The base plate rests on the upper surface of the lower beam plate of the I-beam. The bottom surface of the base plate is provided with a step, and the step surface abuts against the side of the lower beam plate. An integral top plate is provided on the top surface of the piston section of the two vertical jacks. The top plate rests on the lower surface of the upper beam plate of the I-beam.

[0013] Preferably, a connecting frame is provided between the vertical jack and the connecting plate of the support module, and the connecting frame is fixed to the piston section of the vertical jack. When the span of the I-beam is small, the support module is selected to be fixed to the piston section of the vertical jack, and the height difference between the piston section and the upper beam plate of the I-beam is fixed, so that the overall height of the support plane is stable.

[0014] As another preferred embodiment, a connecting frame is provided between the vertical jack and the connecting plate of the support module, and the connecting frame is fixed to the sleeve section of the vertical jack. When the span of the I-beam is large, the support module is selected to be fixed to the sleeve section of the vertical jack to reduce the load on the jack.

[0015] Preferably, the inner end of the horizontal jack is a sleeve section and the outer end is a piston section. The sleeve section of the horizontal jack is fixed on the connecting plate and the connecting frame and is located between the two vertical jacks.

[0016] Preferably, the floor decking is composed of multiple pieces, which are connected and fixed together by crisscrossing steel bars to form an integrated structure.

[0017] This utility model makes full use of the load-bearing capacity of the steel structure frame itself, and erects a non-ground support system for supporting the floor deck during the floor slab pouring process. It has high construction efficiency, does not require space between floors, and can realize cross-operation and multi-level synchronous pouring construction. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of a planar structure of this utility model.

[0020] Figure 2 This is a schematic diagram of a support truss structure according to the present invention.

[0021] Figure 3 This is a schematic diagram of the connection structure between a support module and an I-beam according to this utility model.

[0022] Figure 4 This is a schematic diagram of the horizontal structure of a support module of this utility model.

[0023] Figure 5 This is the utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0024] Figure 6 This is a schematic diagram of a T-shaped mounting plate structure according to this utility model.

[0025] Figure 7 This is a schematic diagram of another support module and I-beam connection structure of this utility model.

[0026] Figure 8 This is a schematic diagram of another horizontal structure of the support module of this utility model.

[0027] In the diagram: 1. I-beam, 2. Support truss, 3. Floor deck, 4. Upper beam, 5. Lower beam, 6. Web, 7. Fixed truss module, 8. Adjustable truss module, 9. Connecting plate, 10. Bolt, 11. Support module, 12. Connecting frame, 13. Sleeve section, 14. Piston section, 15. Vertical jack, 16. Base plate, 17. Top plate, 18. Horizontal jack, 19. First truss section, 20. Inserted chord, 21. Second truss section, 22. Locking plate, 23. T-shaped slab, 24. Horizontal plate, 25. Vertical clamp, 26. Clamping groove, 27. Reinforcing rib. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0029] Example 1: A modular truss support structure for steel floor decking, such as Figure 1 As shown. This structure includes steel I-beams 1, which form a frame around the floor plan. Floor decking 3 is laid within the frame. Several supporting trusses 2 are evenly arranged between the parallel I-beams 1 on both sides of the frame to support the bottom of the floor decking. The floor decking is composed of multiple pieces assembled together, and these multiple floor decking pieces are connected and fixed into a single structure by crisscrossing steel bars.

[0030] like Figure 2 As shown, support modules 11 are respectively provided at both ends of the support truss 2, and several truss modules are connected in series between the support modules 11 at both ends. The truss module includes three fixed truss modules 7 and one adjustable truss module 8. The fixed truss module 7 includes an upper chord and a lower chord, and a web member is provided between the upper chord and the lower chord.

[0031] like Figure 2 , 5 As shown, the adjusting truss module 8 includes an upper chord and a lower chord, with a web member between them. The adjusting truss module includes a first truss section 19 and a second truss section 21. The end face of the first truss section is aligned with the upper and lower chords and has a plug-in chord 20. The upper and lower chords of the second truss section are sleeve structures, and the two plug-in chords can be telescopically inserted into the upper and lower chords of the second truss section. The ends of the upper and lower chords of the second truss section are provided with locking plates 21, which are clamped onto the plug-in chords and locked with bolts.

[0032] like Figure 3 , 4 As shown, the outer end of the support module 11 is erected between the upper beam plate 4 and the lower beam plate 5 of the I-beam. A connecting plate 9 is provided at the inner end of the support module. Connecting plates are provided at both the upper and lower parts of the support module 11. Connecting plates 9 are also provided at both ends of the truss module, with the connecting plates located at both the upper and lower parts of each end of the truss module. The connecting plates of adjacent modules are aligned and locked together using bolts 10. The support module 11 is equipped with a vertical jack 15, which is positioned between the lower beam plate 4 and the upper beam plate 5 of the I-beam. Figure 4As shown, two vertical jacks are symmetrically arranged on the left and right sides of the support module. The top of each vertical jack is a sleeve section 13, and the upper end is a piston section 14. An integral base plate 16 is provided below the sleeve sections of the two vertical jacks. The base plate 16 rests on the upper surface of the lower beam plate 6 of the I-beam. The bottom surface of the base plate has a step, and the step surface abuts against the side of the lower beam plate to ensure the perpendicularity of the support truss to the I-beam. An integral top plate 17 is provided on the top surface of the piston sections of the two vertical jacks, and the top plate rests on the lower surface of the upper beam plate of the I-beam. A connecting frame 12 is provided between the vertical jacks and the connecting plate of the support module. The connecting frame 12 is fixed to the piston section 14 of the vertical jacks. This is used in situations where the load-bearing capacity of the support system is low, and the relative height between the upper surface of the support truss and the I-beam is stable. The support module is also provided with a horizontal jack 18, the inner end of which rests on the web plate 6 of the I-beam. The inner end of the horizontal jack is a sleeve section, and the outer end is a piston section. The sleeve section of the horizontal jack is fixed on the connecting plate and the connecting frame, and is located between the two vertical jacks.

[0033] like Figure 2 , 6 As shown, the truss module is equipped with only a T-shaped plate 23. The lower part of the T-shaped plate includes two vertical clamping plates 25. Between the two vertical clamping plates is a clamping groove 26 for clamping the truss module. The top of the T-shaped plate is a horizontal plate 24. A triangular reinforcing rib 27 is provided between the bottom surface of the horizontal plate and the outer wall of the two vertical clamping plates.

[0034] Example 2: A modular truss support structure for steel floor decking, such as Figure 7 , 8 As shown. Compared with Embodiment 1, the structure of this structure is different in the support module, but the rest of the structure is the same.

[0035] In this example, a connecting frame 12 is provided between the vertical jack 15 and the connecting plate of the support module 11, and the connecting frame 12 is fixed to the sleeve section 13 of the vertical jack. The connecting frame 12 adopts a structure with three parallel lower chords, and the upper part of the connecting plate at the inner end of the support module 11 and the outer ends of the three lower chords are provided with diagonally connected web members, such as... Figure 8 As shown, the direction of the dashed line indicates the connection direction of the web members.

[0036] This structure utilizes the load-bearing capacity of the assembled steel columns and beams. In the horizontal frame, modular support trusses are evenly installed between parallel I-beams. Each support truss consists of support modules that connect to the I-beams at their ends and truss modules between these end support modules. The number of truss modules can be increased or decreased according to the spacing of the parallel I-beams, and the truss modules can be designed in different lengths for easy splicing. Floor decking is laid on the support structure composed of I-beams and support trusses, and then bundled and welded together. Concrete for the floor slab is poured on top of the floor decking. This device fully utilizes the load-bearing capacity of the steel frame itself, erects a support system that does not require grounding, has high construction efficiency, does not occupy space between floors, and allows for cross-floor operations and simultaneous multi-level pouring.

Claims

1. A modular truss support structure for steel floor decking, comprising steel I-beams forming a frame around the floor plan, with floor decking laid within the frame, characterized in that, Between the parallel I-beams on both sides of the frame, several supporting trusses are set to support the bottom surface of the floor deck. Supporting modules are set at both ends of the supporting trusses, and several truss modules are connected in series between the supporting modules at both ends. The outer end of the supporting module is erected between the upper and lower beams of the I-beam, and the inner end of the supporting module is set with a connecting plate. The two ends of the truss module are respectively set with connecting plates. The connecting plates of adjacent modules are aligned with each other and locked with bolts. The supporting module is equipped with a vertical jack, which is set between the lower and upper beams of the I-beam. The supporting module is also equipped with a horizontal jack, the inner end of which is set on the web of the I-beam.

2. The modular truss support structure for steel floor decking according to claim 1, characterized in that, The truss module includes a fixed truss module, which includes an upper chord and a lower chord, with a web member provided between the upper chord and the lower chord.

3. The modular truss support structure for steel floor decking according to claim 1 or 2, characterized in that, The truss module also includes an adjustable truss module, which includes an upper chord and a lower chord, with a web member between them. The adjustable truss module includes a first truss section and a second truss section. The end face of the first truss section is aligned with the upper and lower chords and has insert chords. The upper and lower chords of the second truss section are sleeve structures, and the two insert chords can be telescopically inserted into the upper and lower chords of the second truss section. The ends of the upper and lower chords of the second truss section are provided with locking plates, which are clamped onto the insert chords and locked with bolts.

4. The modular truss support structure for steel floor decking according to claim 1, characterized in that, The connecting plates are provided at both the upper and lower parts of the support module, and at both ends of the truss module.

5. The modular truss support structure for steel floor decking according to claim 1, characterized in that, The truss module is equipped with only a T-shaped plate on its upper span. The lower part of the T-shaped plate includes two vertical clamping plates, and between the two vertical clamping plates is a clamping groove for clamping the truss module. The top of the T-shaped plate is a horizontal plate, and triangular reinforcing ribs are provided between the bottom surface of the horizontal plate and the outer wall of the two vertical clamping plates.

6. The modular truss support structure for steel floor decking according to claim 1, characterized in that, Two vertical jacks are symmetrically arranged on the left and right sides of the support module. The top of the vertical jack is a sleeve section and the upper end is a piston section. An integral base plate is set below the sleeve section of the two vertical jacks. The base plate rests on the upper surface of the lower beam plate of the I-beam. The bottom surface of the base plate is provided with a step, and the step surface abuts against the side of the lower beam plate. An integral top plate is set on the top surface of the piston section of the two vertical jacks. The top plate rests on the lower surface of the upper beam plate of the I-beam.

7. The modular truss support structure for steel floor decking according to claim 6, characterized in that, A connecting frame is provided between the vertical jack and the connecting plate of the support module, and the connecting frame is fixed to the piston section of the vertical jack.

8. The modular truss support structure for steel floor decking according to claim 6, characterized in that, A connecting frame is provided between the vertical jack and the connecting plate of the support module, and the connecting frame is fixed to the sleeve section of the vertical jack.

9. The modular truss support structure for steel floor decking according to claim 7 or 8, characterized in that, The inner end of the horizontal jack is a sleeve section, and the outer end is a piston section. The sleeve section of the horizontal jack is fixed on the connecting plate and the connecting frame, and is located between the two vertical jacks.

10. The modular truss support structure for steel floor decking according to claim 7 or 8, characterized in that, The floor decking is composed of multiple pieces, which are connected and fixed together by crisscrossing steel bars to form a single structure.

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