Truss supporting structure for building composite floor slab construction

Abstract

The utility model discloses a truss supporting structure for building composite floor slab construction, which comprises load-bearing trusses, clamping blocks, supporting legs and adjusting rods, and every two load-bearing trusses are butted through the clamping blocks to form a group of molds. According to the truss supporting structure for building composite floor slab construction, butt joint plates are matched with clamping blocks to connect all the combined molds to form an integral structure, supporting legs are arranged at the ends, away from the clamping blocks, of bearing frames, the tops of the supporting legs are connected with the ends of bearing trusses, and each supporting leg comprises a square cylinder sleeve and an inner square cylinder; the square tube sleeve and the inner square tube are both of a hollow cubic column structure, the inner square tube is inserted into the square tube sleeve, a plurality of positioning holes are formed in one side of the square tube sleeve and one side of the inner square tube, positioning clamping plates are arranged at the ends, close to the clamping blocks, of the bearing trusses, edge clamping grooves are formed in the sides of the clamping blocks, and the positioning clamping plates are inserted into the edge clamping grooves of the corresponding clamping blocks. The device is reasonable in structure and easy and fast to disassemble and assemble, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite floor construction, in particular to a truss support structure for composite floor construction. Background Art

[0002] The composite floor is an assembled integral floor made of prefabricated panels and cast-in-place reinforced concrete layers. The composite floor has good integrity, and the upper and lower surfaces of the panels are flat, which is convenient for the decoration of the finishing layer. It is suitable for high-rise buildings and large-span buildings with high requirements for overall rigidity. One component of the composite floor is the cast-in-place concrete layer, and its thickness varies depending on the span of the floor, but it should be at least equal to the thickness of the prefabricated thin panels. As the span increases, expanded polystyrene boards are often filled in the cast-in-place concrete layer; the expanded polystyrene boards are laid on the prefabricated thin panels to form a cross-section to reduce the weight of the cast-in-place concrete and can be used as a thermal insulation and sound insulation layer for the composite floor. Since negative steel bars are arranged in the cast-in-place concrete layer, some inter-peak fulcrums are formed, making the box section a continuous structure. In the cast-in-place layer, steel bars are installed and equipment pipelines are laid according to the requirements of joint structure and fire protection.

[0003] As is known to all, when assembling a prefabricated composite floor, it is necessary to first erect the composite floor to form a slab beam, and then pour cement to form a whole. In the traditional technology, a full-floor scaffolding is generally set up in advance, and then a load-bearing plate is nailed on the top of the scaffolding to form a kind of erection structure, and then the prefabricated composite floor is hoisted to the top of the load-bearing structure by a crane to offset the falling force of the composite floor during assembly, and prevent the composite floor from being bent, deformed or damaged due to the pressure imbalance caused by the composite floor and the cement pouring force when pouring cement;

[0004] However, this method requires workers to mark the scaffolding steel pipes in advance, and then prepare a suitable top plate. The height of each erected formwork must be kept consistent with the beam wall to achieve a balance in the load-bearing of the composite floor. The preliminary preparation work is long, which wastes time and affects the progress of the project. Secondly, removing the formwork after the pouring is completed will also waste time and affect the efficiency of the project. Summary of the invention

[0005] The utility model aims to overcome the deficiencies in the prior art and provide a truss support structure for building composite floor construction, which has a reasonable structure, is easy and quick to disassemble and assemble, and increases construction efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A truss support structure for building composite floor construction, comprising a load-bearing truss, a clamping block, a leg, and an adjusting rod. Every two load-bearing trusses are butt-jointed through the clamping block to form a group of molds. A truss support structure for building composite floor construction is connected to each other through a butt plate and a clamping block to form an integral structure. The end of the load-bearing frame away from the clamping block is provided with a leg. The top of the leg is connected to the end of the load-bearing truss, and the leg comprises a square tube sleeve and an inner square tube. The square tube sleeve and the inner square tube are both hollow cubic column structures. The inner square tube is plugged into the square tube. Inside the sleeve, a plurality of positioning holes are provided on one side of the square tube sleeve and the inner square tube, and positioning bolts are inserted through the positioning holes. The positioning bolts pass through the corresponding positioning holes of the square tube sleeve and the inner square tube to fix the two. The overall height of the two can be adjusted by plugging the square tube sleeve and the inner square tube, and then the height of the load-bearing truss connected to the top can be adjusted, so that it can be convenient to adapt to the construction support of the superimposed floor slabs of different heights, increasing practicality. A positioning card is set at one end of the load-bearing truss adjacent to the clamping block, and a clamping edge groove is set on the side of the clamping block. The positioning card is inserted into the edge groove of the corresponding card block. A truss support structure for the construction of building composite floor slabs also includes fixing bolts. The thickness of the positioning card is adapted to the width of the edge groove of the card block to ensure stability during insertion. The positioning card body is provided with a plurality of inner through holes, and the edges of the card blocks are provided with a plurality of outer through holes. When the positioning card is inserted into the edge groove of the card block, the fixing bolts are inserted into the corresponding outer through holes and inner through holes. The positioning card is fixedly connected to the corresponding card block by the fixing bolts, thereby achieving the effect of The clamping block fixes and connects two load-bearing trusses in the same group of molds. When assembling the molds, the two load-bearing trusses can be directly connected through the clamping block to form a group of molds. Then the height can be adjusted through the legs to adapt to the floor. Then the two ends of the docking plate are directly plugged into the corresponding card edge grooves of the card edge grooves of the card edge grooves to realize the connection of each group in sequence. After the docking plate and the corresponding card edge groove of the card edge groove are plugged in, they can be fixed by conventional screws or welding to form an overall structure. The assembly operation is simple and quick, and disassembly and assembly can save time, thereby increasing construction efficiency.

[0008] Furthermore, the clamping blocks are provided with a variety of structural types. The clamping blocks can be divided into cross-shaped clamping blocks, Chinese-shaped clamping blocks, and I-shaped clamping blocks according to the clamping grooves set on the sides. The two load-bearing trusses in each group of molds are respectively connected by corresponding clamping blocks. When only one group of molds needs to be assembled, the load-bearing trusses on both sides can be directly connected by the I-shaped clamping blocks. When multiple groups of molds need to be assembled into a general structure, the side clamping blocks need to have clamping grooves on three sides to clamp with the corresponding load-bearing trusses and docking plates, and then the Chinese-shaped clamping blocks can be used, while the other clamping blocks need to have clamping grooves on four sides to clamp with the corresponding load-bearing trusses and docking plates, and then the cross-shaped clamping blocks can be used. The thickness of the docking plate is adapted to the width of the clamping groove, and the docking plate can be fixedly connected to the corresponding clamping blocks using bolts to increase the overall stability.

[0009] Furthermore, the load-bearing truss also includes a top rod and a support rod. The top rod and one end of the support rod are respectively fixedly connected to the top and bottom of one side of the positioning clamp. The other end of the support rod is a bent structure and fixedly connected to the bottom side of the top rod end. A plurality of reinforcing rods are arranged between the top rod and the support rod. The reinforcing rods can increase the overall strength of the load-bearing truss and effectively prevent deformation. A reserved nut is fixedly provided at the bottom of one end of the top rod away from the clamping block.

[0010] Furthermore, the support leg also includes a driving nut and a lifting screw. The top end of the lifting screw is threadedly sleeved in a reserved nut, and the bottom end is inserted into the top of the inner square tube. The top of the inner square tube is rotatably connected with a driving nut, and the driving nut is threadedly sleeved with the lifting screw. When assembling the support leg and the load-bearing truss, the top of the lifting screw is first fixedly connected to the load-bearing truss through the reserved nut, and the bottom end is inserted into the inner square tube. After the height of the load-bearing truss is adjusted through the square tube sleeve and the inner square tube, if the overall height of the mold is not compatible with the floor height due to the spacing of the positioning holes, affecting the installation of the composite floor, the lifting screw can be driven to rise and fall by rotating the driving nut to ensure that the height of the support leg can be fine-tuned, thereby achieving the purpose of further increasing the practical effect.

[0011] Furthermore, a square base is fixed to the bottom end of the square sleeve, and the square sleeve is supported by the square base. The square base is a square pedestal structure, which can disperse the force on the legs and avoid damage to the ground caused by concentrated force points.

[0012] Furthermore, the bottom of the clamping block is rotatably connected with an adjusting rod, the adjusting rod includes a movable sleeve, the top of the movable sleeve is rotatably connected to the corresponding clamping block and an adjusting screw is inserted inside the bottom end, the adjusting screw is threadedly sleeved with a movable nut, and the movable nut is rotatably connected to the bottom end of the movable sleeve. By rotating the movable nut, the adjusting screw can be driven to move up and down, and the bottom end of the adjusting screw is rotatably connected to a round base. After the clamping block and the positioning clamping plate are fixedly connected by the positioning bolts, after the overall height of the mold is adjusted to a suitable level, the adjusting screw can be driven downward by the movable nut until the round base rests on the ground, and the corresponding clamping block is supported by the cooperation of the adjusting screw and the movable sleeve, so as to avoid the situation where the clamping block in the mold sinks due to uneven force when pouring cement on the composite floor slab, thereby avoiding the situation where the composite floor slab is deformed due to unstable support of the mold.

[0013] Furthermore, the round base is a frustum-type structure, which can disperse the force on the adjusting screw to prevent the concentrated force from damaging the ground.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model realizes the fixed connection between the positioning clamping plate and the corresponding clamping block through the positioning bolt, so that the two load-bearing trusses in the same group of molds can be fixedly connected through the clamping block. When assembling the molds, the two load-bearing trusses can be directly connected through the clamping block to form an installation of a group of molds, and then the height is adjusted by the support legs to adapt to the floor, and then the two ends of the docking plate are directly plugged into the clamping edge grooves of the corresponding clamping plates at both ends to realize the connection of each group in sequence, thereby forming an overall structure. The assembly operation is simple and quick, and the disassembly and assembly can save time, thereby increasing the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a schematic diagram of a truss support structure for building composite floor construction of the utility model;

[0017] Attached Figure 2 This is a schematic diagram of a load-bearing truss structure in a truss support structure for building composite floor construction of the utility model;

[0018] Attached Figure 3 This is a schematic diagram of the leg structure of a truss support structure for building composite floor construction in the utility model;

[0019] Attached Figure 4 This is a schematic diagram of the classification structure of the clamping blocks in the truss support structure for the construction of a building composite floor slab of the utility model;

[0020] Attached Figure 5 This is a schematic diagram of the structure of an adjusting rod in a truss support structure for building composite floor construction of the utility model;

[0021] Attached Figure 6 This is a schematic diagram of an overall structure of a truss support structure for building composite floor construction of the utility model;

[0022] In the figure: 1. load-bearing truss; 11. top rod; 111. reserved nut; 12. reinforcement rod; 13. positioning clamping plate; 131. inner perforation; 14. support rod; 2. clamping block; 2A. cross clamping block; 2B. earth-shaped clamping block; 2C. straight-shaped clamping block; 21. outer perforation; 22. clamping edge groove; 3. support leg; 31. square tube sleeve; 32. inner square tube; 321. driving nut; 33. lifting screw; 34. positioning hole; 35. positioning bolt; 36. square base; 4. adjusting rod; 41. movable sleeve; 411. movable nut; 42. adjusting screw; 43. round base; 5. fixing bolt; 6. docking plate. DETAILED DESCRIPTION

[0023] To facilitate the understanding of those skilled in the art, Figure 1-6 , the technical solution of the utility model is further specifically described.

[0024] refer to Figure 1 , Figure 4 , Figure 6 As shown, a truss support structure for building composite floor construction includes a load-bearing truss 1, a clamping block 2, a leg 3, and an adjusting rod 4. Every two load-bearing trusses 1 are connected by the clamping block 2 to form a group of molds. A truss support structure for building composite floor construction connects the assembled groups of molds to each other through a docking plate 6 and a clamping block 2 to form an integral structure. The clamping block 2 is provided with a variety of structural types. The clamping block 2 can be divided into a cross-shaped clamping block 2A, a Chinese-shaped clamping block 2B, and a straight-shaped clamping block 2C according to the clamping edge groove 22 set on the side. The two load-bearing trusses 1 in each group of molds are connected by the corresponding clamping blocks 2, respectively. When only one set of molds needs to be assembled, the load-bearing trusses 1 on both sides can be directly connected by the I-shaped clamping block 2C. When multiple sets of molds need to be assembled into the overall structure, the side clamping blocks 2 need to have clamping grooves 22 on three sides to clamp with the corresponding load-bearing trusses 1 and docking plates 6, and then the U-shaped clamping blocks 2B can be used, and the other clamping blocks 2 need to have clamping grooves 22 on four sides to clamp with the corresponding load-bearing trusses 1 and docking plates 6, and then the cross-shaped clamping blocks 2A can be used. The thickness of the docking plate 6 is adapted to the width of the clamping groove 22, and the docking plate 6 can be fixedly connected to the corresponding clamping blocks 2 using bolts to increase the overall stability.

[0025] refer to Figure 1-3As shown, the end of the load-bearing frame away from the clamping block 2 is provided with a support leg 3, the top of the support leg 3 is connected to the end of the load-bearing truss 1, and the support leg 3 includes a square tube sleeve 31 and an inner square tube 32, the square tube sleeve 31 and the inner square tube 32 are both hollow cubic column structures, the inner square tube 32 is plugged into the square tube sleeve 31, and a plurality of positioning holes 34 are opened on one side of the square tube sleeve 31 and the inner square tube 32, and positioning bolts 35 are inserted through the positioning holes 34, and the positioning bolts 35 pass through the positioning holes 34 corresponding to the square tube sleeve 31 and the inner square tube 32 to fix the two. The square tube sleeve 31 and the inner square tube 32 can be plugged into each other. In order to adjust the overall height of the two, the height of the load-bearing truss 1 connected at the top can be adjusted, so that it can be convenient to adapt to the construction support of the composite floor slabs of different heights and increase practicality. The load-bearing truss 1 also includes a top rod 11 and a support rod 14. One end of the top rod 11 and the support rod 14 are respectively fixedly connected to the top and bottom of one side of the positioning card plate 13, and the other end of the support rod 14 is a bent structure and fixedly connected to the bottom side of the end of the top rod 11. A plurality of reinforcing rods 12 are arranged between the top rod 11 and the support rod 14. The overall strength of the load-bearing truss 1 can be increased by the reinforcing rods 12 to effectively prevent deformation.

[0026] refer to Figure 1 , Figure 2 , Figure 4 As shown, a positioning card plate 13 is set at one end of the load-bearing truss 1 adjacent to the clamping block 2, and a clamping edge groove 22 is set on the side of the clamping block 2. The positioning card plate 13 is inserted into the clamping edge groove 22 of the corresponding clamping block 2. A truss support structure for the construction of a building composite floor also includes a fixing bolt 5. The thickness of the positioning card plate 13 is adapted to the width of the clamping edge groove 22 of the clamping block 2, so as to ensure stability during insertion. The main body of the positioning card plate 13 is provided with a plurality of inner through holes 131, and the clamping edges of the clamping block 2 are provided with a plurality of outer through holes 21. When the positioning card plate 13 is inserted into the clamping edge groove 22 of the clamping block 2, the fixing bolt 5 is inserted into the corresponding outer through holes 21 and the inner through holes 131. The fixing bolt 5 is used to realize the fixed connection between the positioning card plate 13 and the corresponding clamping block 2, so that the two load-bearing trusses 1 in the same group of molds can be fixedly connected through the clamping block 2.

[0027] refer to Figure 1-3As shown, a reserved nut 111 is fixedly arranged at the bottom of one end of the push rod 11 away from the clamping block 2, and the support leg 3 also includes a driving nut 321 and a lifting screw 33. The top of the lifting screw 33 is threadedly sleeved in the reserved nut 111, and the bottom end is inserted into the top of the inner square tube 32. The top of the inner square tube 32 is rotatably connected with the driving nut 321, and the driving nut 321 is threadedly sleeved with the lifting screw 33. When assembling the support leg 3 and the load-bearing truss 1, first, the top of the lifting screw 33 is fixedly connected to the load-bearing truss 1 through the reserved nut 111, and the bottom end is inserted into the inner square tube 32. After the sleeve 31 and the inner square tube 32 have adjusted the height of the load-bearing truss 1, if the overall height of the mold is not compatible with the floor height due to the spacing of the positioning holes 34, affecting the installation of the composite floor, the driving nut 321 can be rotated to drive the lifting screw 33 to lift and lower, to ensure that the height of the leg 3 can be fine-tuned, so as to achieve the purpose of further increasing the practical effect. A square base 36 is fixed to the bottom end of the square tube sleeve 31, and the square base 36 supports the square sleeve. The square base 36 is a square pedestal structure, which can disperse the force on the leg 3 to avoid damage to the ground caused by concentrated force points.

[0028] refer to Figure 1 , Figure 5 As shown, the bottom of the clamping block 2 is rotatably connected with an adjusting rod 4, and the adjusting rod 4 includes a movable sleeve 41. The top of the movable sleeve 41 is rotatably connected to the corresponding clamping block 2 and an adjusting screw 42 is inserted inside the bottom. The adjusting screw 42 is threadedly sleeved with a movable nut 411, and the movable nut 411 is rotatably connected to the bottom of the movable sleeve 41. By rotating the movable nut 411, the adjusting screw 42 is driven to move up and down. The bottom of the adjusting screw 42 is rotatably connected with a round base 43. When the clamping block 2 is fixed to the positioning card plate 13 by the positioning bolt 35, After the connection is fixed and the overall height of the mold is adjusted to a suitable level, the adjusting screw 42 can be driven downward by the movable nut 411 until the round base 43 rests on the ground. The corresponding clamping block 2 can be supported by the adjusting screw 42 and the movable sleeve 41, thereby avoiding the uneven force when pouring cement on the composite floor slab, which may cause the position of the clamping block 2 in the mold to sink, thereby avoiding the deformation of the composite floor slab due to unstable mold support. The round base 43 is a truncated cone structure, which can disperse the force on the adjusting screw 42 to prevent the concentrated force from damaging the ground.

[0029] refer to Figure 1-6As shown, when assembling the mold, the two load-bearing trusses 1 can be directly connected through the clamping block 2 to form a group of mold installations, and then the height can be adjusted through the support legs 3 to adapt to the floor, and then the two ends of the docking plate 6 are directly plugged into the corresponding clamping plate edge grooves 22 at both ends to realize the connection of each group in sequence. After the docking plate 6 and the corresponding clamping plate edge groove 22 are plugged in, they can be fixed by conventional screws or welding to form an integral structure. The assembly operation is simple and quick, and disassembly and assembly can save time, thereby increasing construction efficiency.

[0030] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A truss support structure for building composite floor construction, characterized in that: The invention comprises a load-bearing truss, a clamping block, a leg and an adjusting rod. Every two load-bearing trusses are butt-jointed by the clamping block to form a group of molds. A truss support structure for the construction of a building composite floor slab is used to connect the assembled groups of molds to each other through a butt plate and a clamping block to form an integral structure. The load-bearing truss is provided with a leg at one end away from the clamping block. The top of the leg is connected to the end of the load-bearing truss, and the leg comprises a square tube sleeve and an inner square tube. The square tube sleeve and the inner square tube are both hollow cubic column structures. The inner square tube is plugged into the square tube sleeve. The square tube sleeve and one side of the inner square tube are connected. A plurality of positioning holes are provided, through which positioning bolts are inserted, a positioning clamp is provided at one end of the load-bearing truss adjacent to the clamping block, a clamping edge groove is provided on the side of the clamping block, the positioning clamp is inserted into the clamping edge groove of the corresponding clamping block, a truss support structure for the construction of building composite floor slabs also includes fixing bolts, the thickness of the positioning clamp is adapted to the width of the clamping edge groove of the clamping block, the positioning clamp body is provided with a plurality of inner through holes, the clamping edge of the clamping block is provided with a plurality of outer through holes, and the fixing bolts are inserted into the corresponding outer through holes and inner through holes.

2. A truss support structure for building composite floor construction according to claim 1, characterized in that: The clamping block has a variety of structural types. The clamping block can be divided into a cross-shaped clamping block, a U-shaped clamping block, and a straight-shaped clamping block according to the clamping grooves arranged on the sides. The thickness of the docking plate is adapted to the width of the clamping grooves.

3. A truss support structure for building composite floor construction according to claim 1, characterized in that: The load-bearing truss also includes a top rod and a support rod. The top rod and one end of the support rod are respectively fixedly connected to the top and bottom of one side of the positioning clamp. The other end of the support rod is a bent structure and fixedly connected to the bottom side of the top rod end. A plurality of reinforcing rods are arranged between the top rod and the support rod. A reserved nut is fixedly arranged at the bottom of one end of the top rod away from the clamping block.

4. A truss support structure for building composite floor construction according to claim 1, characterized in that: The support leg also includes a driving nut and a lifting screw. The top end of the lifting screw is threadedly sleeved in a reserved nut, and the bottom end is inserted into the top of the inner square tube. The top of the inner square tube is rotatably connected with a driving nut, and the driving nut is threadedly sleeved in the lifting screw.

5. A truss support structure for building composite floor construction according to claim 1, characterized in that: A square base is fixed on the bottom end of the square tube sleeve.

6. A truss support structure for building composite floor construction according to claim 1, characterized in that: The bottom of the clamping block is rotatably connected with an adjusting rod, and the adjusting rod includes a movable sleeve. The top of the movable sleeve is rotatably connected to the corresponding clamping block and an adjusting screw is inserted inside the bottom end. The adjusting screw is threadedly sleeved with a movable nut, and the movable nut is rotatably connected to the bottom end of the movable sleeve. The bottom end of the adjusting screw is rotatably connected to a round base.

7. A truss support structure for building composite floor construction according to claim 6, characterized in that: The round base is a frustum-type structure.

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