Steel bar truss floor support plate reserved hole side formwork supporting construction structure

Abstract

The utility model provides a steel bar truss floor support plate reserved hole side formwork supporting construction structure which comprises two sets of first battens and two sets of second battens, the first battens are perpendicular to the second battens, the two sets of first battens and the two sets of second battens form a rectangular structure, and the two sets of first battens and the two sets of second battens are perpendicular to each other. Auxiliary structures are arranged in the first batten and the second batten, a side formwork assembly is fixedly arranged between the bottom of the first batten and the bottom of the second batten, a connecting structure is fixedly arranged between the end of the first batten and the end of the second batten, and the first batten and the second batten are fixed to a steel bar on the top of a steel bar truss floor support plate. And the thicknesses of the first batten and the second batten are consistent with the thickness of a concrete protection layer at the top of the steel bar truss floor support plate. The first closing-in net and the second closing-in net can be quickly cut according to the specific size of a reserved hole, and when the steel bars are blocked, the first closing-in net and the second closing-in net can be conveniently cut off, so that the device is quickly and conveniently mounted.

Description

Technical Field

[0001] The utility model belongs to the technical field of supporting side formwork for reserved openings, and more specifically, particularly relates to a construction structure for supporting side formwork for reserved openings of a steel bar truss floor deck. Background Art

[0002] With the rapid development of the construction industry, the steel truss floor deck has its own galvanized steel plate bottom formwork and one-way floor steel bars (and web bars), which can save the need for formwork support frame erection, making it safe and efficient to construct. It has been widely used in the floor construction of steel structure workshop projects. There are often many reserved openings for pipes in the floor of the equipment room (integrated electrical pipes, water supply and drainage fire protection pipes, HVAC pipes, etc.). In similar projects in the past, the side formwork of the reserved openings of the steel truss floor deck was supported, and the concrete was usually intercepted by a wooden formwork comb board. However, the steel truss floor deck has its own steel bars in one direction at the opening position, which should not be cut off before concrete pouring, so as not to weaken the bearing capacity of the floor deck and affect construction safety. For the square opening side formwork in the above situation, it is very difficult to use traditional wooden formwork to support it, because it is necessary to continuously cross the floor deck steel bars to make a comb board, which has poor turnover, and the reserved opening boundary may be too close to the floor deck steel bars, causing position conflicts and unable to be installed. All these greatly reduce the efficiency of wooden formwork side formwork installation and construction.

[0003] The existing technology generally uses wooden formwork to install the side formwork, and then install the floor slab reinforcement. The floor slab reinforcement does not pass through the opening, and the steel truss floor slab already has reinforcement and web reinforcement in one direction. The side formwork is supported by wooden formwork, parallel to the direction of the reinforcement of the floor slab. The template installation position (i.e. the boundary of the opening) may be too close to the reinforcement of the floor slab, causing a position conflict and making it impossible to install. Perpendicular to the direction of the reinforcement of the floor slab, the wooden formwork needs to cross the reinforcement of the floor slab to make a comb plate, resulting in poor turnover, and sponge strips are used to seal the gap between the comb plate and the reinforcement. The construction is complicated and the efficiency is very low. Utility Model Content

[0004] The purpose of the utility model is to provide a construction structure for supporting the side formwork of a reserved opening of a steel truss floor decking plate, so as to solve the problem proposed in the above-mentioned background technology that the template installation position (i.e., the opening boundary) may be too close to the steel bars of the floor decking plate, resulting in position conflict, inability to install, poor turnover, and the need to use sponge strips to seal the gap between the comb plate and the steel bars.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a construction structure for supporting the side formwork of the reserved opening of the steel truss floor deck, including a first wooden square and a second wooden square, the first wooden square and the second wooden square are both arranged in two groups, the first wooden square and the second wooden square are arranged vertically, and the two groups of the first wooden square and the two groups of the second wooden square form a rectangular structure, the first wooden square and the second wooden square are both provided with auxiliary structures, and a side formwork assembly is fixedly arranged between the bottoms of the first wooden square and the second wooden square, a connecting structure is fixedly arranged between the ends of the first wooden square and the second wooden square, and the first wooden square and the second wooden square are fixedly arranged. It is fixed on the top steel bars of the steel truss floor deck, and the thickness of the first wooden square and the second wooden square are consistent with the thickness of the concrete protective layer on the top of the steel truss floor deck; wherein, the side formwork assembly includes: a first closing net and a second closing net, the top of the first closing net is fixed to the bottom of the first wooden square, and the bottom of the first closing net is fixed to the steel bars at the bottom of the steel truss floor deck, the top of the second closing net is fixed to the bottom of the second wooden square, and the bottom of the second closing net is fixed to the steel bars at the bottom of the steel truss floor deck, and the bottoms of the first closing net and the second closing net are both in contact with the bottom plate of the steel truss floor deck.

[0006] In a preferred embodiment, the auxiliary structure includes: a circular hole, a vertical rod and a limit nut; the circular hole is opened in a through-type manner inside the first wooden square and the second wooden square, the vertical rod is movably arranged inside the circular hole, and the bottom end of the vertical rod is in contact with the bottom plate of the steel truss floor decking, the limit nut is arranged on the outside of the vertical rod through a threaded connection, and the number of the limit nuts, the vertical rod and the circular hole are all set to four groups, and the four groups of limit nuts are respectively in contact with the top of the first wooden square and the second wooden square.

[0007] In a preferred embodiment, the outer sides of two groups of vertical rods fit with the inner sides of two groups of first closing nets, and the other two groups of vertical rods fit with the inner sides of two groups of second closing nets, and the vertical rods are located in the middle of the first closing nets and the second closing nets.

[0008] In a preferred embodiment, the first closing net and the second closing net are symmetrically arranged in two groups, and the two ends of the first closing net are arranged as vertical bending structures, the inner sides of the two ends of the first closing net are fitted with the outer sides of the two ends of the second closing net, and the two ends of the first closing net are fixedly connected with the two ends of the second closing net by cable ties.

[0009] In a preferred embodiment, the connecting structure includes: a lower connecting plate, a fixing seat, a threaded rod, a threaded seat and an upper connecting plate, the lower connecting plate is movably arranged between the ends of the first wooden square and the second wooden square, and the outer side of the lower connecting plate is in contact with the outer sides of the ends of the first wooden square and the second wooden square, the fixing seat is fixedly arranged at the bottom of the lower connecting plate, the bottom end of the threaded rod is rotatably arranged inside the fixing seat, and a knob is fixedly arranged at the top of the threaded rod, the threaded seat is arranged on the outer side of the threaded rod through a threaded connection, the upper connecting plate is fixedly arranged on the outer side of the threaded seat, and the bottom of the upper connecting plate is in contact with the tops of the first wooden square and the second wooden square, and the upper connecting plate and the lower connecting plate are both arranged in a right-angle structure.

[0010] In a preferred embodiment, the connection structure further includes a guide rod, the bottom end of which is fixedly disposed on the bottom of the lower connecting plate, the guide seat is slidably disposed on the outside of the guide rod, and the guide seat is fixedly disposed on the outside of the upper connecting plate.

[0011] In a preferred embodiment, the connection structure further includes cone nails, which are respectively fixed at the bottom of the upper connecting plate and the top of the lower connecting plate, and are inserted into the first wooden square and the second wooden square, and the cone nails are arranged in a rectangular array.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the present invention, by using the first closing net and the second closing net as side molds, the first closing net and the second closing net can be quickly cut according to the specific size of the reserved hole; and when encountering steel bar obstruction, the first closing net and the second closing net can be conveniently cut apart, and after the steel bar passes through, the first closing net and the second closing net can be cut apart and returned to the position; thus, the installation can be carried out quickly and conveniently, which is conducive to the support of side molds for holes of various sizes, and the side mold can be constructed after the steel bars are fully laid at the hole, the construction speed is fast, there is no need to remove the mold, and the surface effect is good through the later side plastering; and the pouring project can be monitored visually through the internal mesh holes of the first closing net and the second closing net, thereby reducing the risk of pores and honeycombs.

[0014] 2. In the utility model, by providing a threaded rod and a threaded seat as well as a guide rod and a guide seat, the spacing between the upper connecting plate and the lower connecting plate can be adjusted, so that the upper connecting plate and the lower connecting plate clamp and fix the ends of the first wooden square and the second wooden square; at the same time, the inclined cone nails can be used to apply an inward thrust to the first wooden square and the second wooden square, so that the ends of the first wooden square and the second wooden square can be tightly fitted; it is conducive to the disassembly and installation of the first wooden square and the second wooden square, and the verticality between the first wooden square and the second wooden square is ensured, which is conducive to improving the regularity of the hole.

[0015] 3. In the utility model, by setting a limit nut, the length of the vertical rod below the circular hole can be controlled, which is beneficial to support the inner side of the first closing net and the second closing net according to their specific sizes, and is beneficial to prevent the first closing net and the second closing net from expanding the mold, which is convenient for later processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the auxiliary structure of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the first wooden square and the second wooden square of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the connection structure of the utility model.

[0020] Figure 5 It is a schematic diagram of the lower surface structure of the upper connecting plate of the utility model.

[0021] Description of reference numerals:

[0022] 1. First wooden square; 2. Second wooden square; 3. Auxiliary structure; 301. Round hole; 302. Vertical rod; 303. Limit nut; 4. Side mold assembly; 401. First closing net; 402. Second closing net; 5. Connection structure; 501. Lower connecting plate; 502. Fixed seat; 503. Threaded rod; 504. Threaded seat; 505. Upper connecting plate; 506. Guide rod; 507. Guide seat; 508. Cone nail. DETAILED DESCRIPTION

[0023] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0024] Embodiment 1:

[0025] As attached Figure 1 To Attachment Figure 5 As shown, the construction structure of the side formwork support for the reserved opening of the steel truss floor deck of the utility model includes: a first wood square 1 and a second wood square 2, the first wood square 1 and the second wood square 2 are both arranged in two groups, and the first wood square 1 and the second wood square 2 are arranged vertically, and the two groups of the first wood square 1 and the two groups of the second wood square 2 form a rectangular structure. Auxiliary structures 3 are arranged inside the first wood square 1 and the second wood square 2, and a side formwork assembly 4 is fixedly arranged between the bottoms of the first wood square 1 and the second wood square 2, and a connecting structure 5 is fixedly arranged between the ends of the first wood square 1 and the second wood square 2. The first wood square 1 and the second wood square 2 are tied and fixed to the steel bars at the top of the steel truss floor deck by a tie, and the thickness of the first wood square 1 and the second wood square 2 is consistent with the thickness of the concrete protective layer at the top of the steel truss floor deck.

[0026] In the disclosed embodiment, the side form assembly 4 includes: a first closing net 401 and a second closing net 402. The top of the first closing net 401 is fixed to the bottom of the first wooden square 1 by a cable tie, and the bottom of the first closing net 401 is fixed to the bottom steel bar of the steel truss floor deck by a cable tie. The top of the second closing net 402 is fixed to the bottom of the second wooden square 2 by a cable tie, and the bottom of the second closing net 402 is fixed to the bottom steel bar of the steel truss floor deck by a cable tie, and the bottoms of the first closing net 401 and the second closing net 402 are both in contact with the bottom plate of the steel truss floor deck. The first closing net 401 and the second closing net 402 are both symmetrically arranged in two groups, and the two ends of the first closing net 401 are arranged as vertical bending structures. The inner sides of the two ends of the first closing net 401 are in contact with the outer sides of the two ends of the second closing net 402, and the two ends of the first closing net 401 are fixedly connected with the two ends of the second closing net 402 by cable ties. Its specific function is: by using the first closing net 401 and the second closing net 402 as side molds, the first closing net 401 and the second closing net 402 can be quickly cut according to the specific size of the reserved opening; and when encountering steel bar obstruction, the first closing net 401 and the second closing net 402 can be easily cut apart, and after the steel bar passes through, the first closing net 401 and the second closing net 402 can be cut apart and returned to their positions, so that they can be installed quickly and conveniently.

[0027] Embodiment 2:

[0028] As attached Figure 1 With attached Figure 2 As shown: On the basis of Example 1, the auxiliary structure 3 includes: a circular hole 301, a vertical rod 302 and a limiting nut 303, and the circular hole 301 is opened in a through-type inside the first wooden square 1 and the second wooden square 2. The vertical rod 302 is movably arranged inside the circular hole 301, and the bottom end of the vertical rod 302 is in contact with the bottom plate of the steel truss floor deck. The limiting nut 303 is arranged on the outside of the vertical rod 302 through a threaded connection, and the number of the limiting nut 303, the vertical rod 302 and the circular hole 301 is set to four groups, and the four groups of limiting nuts 303 are respectively in contact with the top of the first wooden square 1 and the second wooden square 2. The outsides of the two groups of vertical rods 302 are in contact with the insides of the two groups of first closing nets 401, and the other two groups of vertical rods 302 are in contact with the insides of the two groups of second closing nets 402, and the vertical rod 302 is located in the middle of the first closing net 401 and the second closing net 402. Its specific function is: by setting the limiting nut 303, the length of the vertical rod 302 below the circular hole 301 can be controlled, which is beneficial to support the inner side of the first closing net 401 and the second closing net 402 according to their specific sizes, and is beneficial to prevent the first closing net 401 and the second closing net 402 from expanding the mold.

[0029] Embodiment 3:

[0030] As attached Figure 3 To Attachment Figure 5 As shown: on the basis of Example 1 and Example 2, the connection structure 5 includes: a lower connection plate 501, a fixing seat 502, a threaded rod 503, a threaded seat 504, an upper connection plate 505, a guide rod 506, a guide seat 507 and a cone nail 508; the lower connection plate 501 is movably arranged between the ends of the first wooden square 1 and the second wooden square 2, and the outer side of the lower connection plate 501 is in contact with the outer sides of the ends of the first wooden square 1 and the second wooden square 2. The fixing seat 502 is fixedly arranged at the bottom of the lower connection plate 501, the bottom end of the threaded rod 503 is rotatably arranged inside the fixing seat 502, and a knob is fixedly arranged at the top of the threaded rod 503, and the threaded seat 504 is arranged on the outer side of the threaded rod 503 through a threaded connection. The upper connection plate 505 is fixedly arranged on the outer side of the threaded seat 504, and the bottom of the upper connection plate 505 is in contact with the top of the first wooden square 1 and the second wooden square 2, and the upper connection plate 505 and the lower connection plate 501 are both arranged in a right angle structure. The bottom end of the guide rod 506 is fixedly arranged at the bottom of the lower connecting plate 501; the guide seat 507 is slidably arranged outside the guide rod 506, and the guide seat 507 is fixedly arranged outside the upper connecting plate 505; the cone nails 508 are respectively fixedly arranged at the bottom of the upper connecting plate 505 and the top of the lower connecting plate 501, and the cone nails 508 are inserted into the first wooden square 1 and the second wooden square 2. The cone nails 508 are arranged in a rectangular array, and the cone nails 508 are also arranged in an inclined shape. Its specific function is: by providing the threaded rod 503 and the threaded seat 504 and the guide rod 506 and the guide seat 507, the spacing between the upper connecting plate 505 and the lower connecting plate 501 can be adjusted, so that the upper connecting plate 505 and the lower connecting plate 501 clamp and fix the ends of the first wooden square 1 and the second wooden square 2; at the same time, the inclined cone nails 508 can apply an inward thrust to the first wooden square 1 and the second wooden square 2, so that the ends of the first wooden square 1 and the second wooden square 2 can be closely fitted. It is beneficial to dismantle and install the first wooden square 1 and the second wooden square 2.

[0031] The specific usage and function of this embodiment are described below:

[0032] In the utility model, when in use, the reserved opening is positioned and laid out (each side is expanded 20mm, marked on the top steel bar), the first closing net 401 and the second closing net 402 are cut out according to the size of the reserved opening, and the first closing net 401 is bent; then the first closing net 401 and the second closing net 402 are curved in the direction parallel to the mesh bone. The volume of the first closing net 401 and the second closing net 402 is reduced, and then the first closing net 401 and the second closing net 402 are passed from the intersection between the top steel bars to the bottom, and then the first closing net 401 and the second closing net 402 are unfolded, and when the first closing net 401 and the second closing net 402 encounter the steel bar, the first closing net 401 and the second closing net 402 are cut apart, and after the steel bar passes through, the first closing net 401 and the second closing net 402 are cut apart and returned to the position. The bottoms of the first closing net 401 and the second closing net 402 are tied to the bottom steel bars with cable ties, and the ends of the first closing net 401 and the second closing net 402 are fixedly connected with cable ties so that the first closing net 401 and the second closing net 402 cover the gap under the bottom steel bars. Then, the ends of the first wooden square 1 and the second wooden square 2 are placed between the upper connecting plate 505 and the lower connecting plate 501, and the threaded rod 503 is rotated. The threaded rod 503 drives the upper connecting plate 505 to move downward through the threaded seat 504, the guide rod 506 and the guide seat 507, so that the upper connecting plate 505 and the lower connecting plate 501 clamp the ends of the first wooden square 1 and the second wooden square 2, and the cone nail 508 is inserted into the first wooden square 1 and the second wooden square 2, so that the ends of the first wooden square 1 and the second wooden square 2 are tightly fitted vertically, so that the two groups of first wooden squares 1 and the two groups of second wooden squares 2 form a rectangular structure, and the first wooden square 1 and the second wooden square 2 are placed along the reserved hole positioning line, and the first wooden square 1 and the second wooden square 2 are tied and fixed to the top steel bars with cable ties. The tops of the first closing net 401 and the second closing net 402 are tied and connected with the first wood 1 and the second wood 2, and the vertical rod 302 is inserted into the circular hole 301 so that the vertical rod 302 supports the middle part of the first closing net 401 and the second closing net 402, and then the concrete is poured. After the floor is accessible, check whether there is any leakage inside the hole and clean it up, and then perform concrete curing. After the concrete reaches the designed strength, cut the steel bars inside the hole, mark the final positioning of the hole on the floor next to it, and then plaster the side of the hole. Before installing the protective pipe, cut the galvanized steel plate bottom membrane inside the hole.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction structure for supporting the side formwork of a reserved opening of a steel truss floor deck, characterized in that: include: A first timber beam (1) and a second timber beam (2), wherein the first timber beam (1) and the second timber beam (2) are both arranged in two groups, the first timber beam (1) and the second timber beam (2) are arranged vertically, and the two groups of the first timber beam (1) and the two groups of the second timber beam (2) form a rectangular structure, an auxiliary structure (3) is arranged inside the first timber beam (1) and the second timber beam (2), and a side formwork assembly (4) is fixedly arranged between the bottoms of the first timber beam (1) and the second timber beam (2), a connecting structure (5) is fixedly arranged between the ends of the first timber beam (1) and the second timber beam (2), the first timber beam (1) and the second timber beam (2) are fixed on the steel bars at the top of the steel truss floor deck, and the thickness of the first timber beam (1) and the second timber beam (2) is consistent with the thickness of the concrete protective layer at the top of the steel truss floor deck; The side formwork assembly (4) comprises: a first closing net (401) and a second closing net (402); the top of the first closing net (401) is fixed to the bottom of the first wooden square (1), and the bottom of the first closing net (401) is fixed to the bottom steel bars of the steel truss floor deck; the top of the second closing net (402) is fixed to the bottom of the second wooden square (2), and the bottom of the second closing net (402) is fixed to the bottom steel bars of the steel truss floor deck; and the bottoms of the first closing net (401) and the second closing net (402) are both in contact with the bottom plate of the steel truss floor deck.

2. The side formwork support construction structure for reserved openings of steel truss floor decks according to claim 1 is characterized in that: The auxiliary structure (3) comprises: a circular hole (301), a vertical rod (302) and a limiting nut (303); the circular hole (301) is opened in a through-type manner inside the first wooden square (1) and the second wooden square (2); the vertical rod (302) is movably arranged inside the circular hole (301), and the bottom end of the vertical rod (302) is in contact with the bottom plate of the steel truss floor deck; the limiting nut (303) is arranged on the outside of the vertical rod (302) through a threaded connection; the limiting nut (303), the vertical rod (302) and the circular hole (301) are all arranged in four groups, and the four groups of limiting nuts (303) are respectively in contact with the top of the first wooden square (1) and the top of the second wooden square (2).

3. The side formwork support construction structure for reserved openings of steel bar truss floor decks according to claim 2 is characterized in that: The outer sides of the two groups of vertical rods (302) are in contact with the inner sides of the two groups of first closing nets (401), and the other two groups of vertical rods (302) are in contact with the inner sides of the two groups of second closing nets (402), and the vertical rods (302) are located in the middle of the first closing nets (401) and the second closing nets (402).

4. The side formwork support construction structure for reserved openings of steel truss floor decks according to claim 1 is characterized in that: The first closing net (401) and the second closing net (402) are both symmetrically arranged in two groups, and the two ends of the first closing net (401) are arranged as vertical bending structures, the inner sides of the two ends of the first closing net (401) are in contact with the outer sides of the two ends of the second closing net (402), and the two ends of the first closing net (401) and the two ends of the second closing net (402) are fixedly connected by a cable tie.

5. The side formwork support construction structure for reserved openings of steel truss floor decks according to claim 1 is characterized in that: The connection structure (5) comprises: a lower connection plate (501), a fixing seat (502), a threaded rod (503), a threaded seat (504) and an upper connection plate (505); the lower connection plate (501) is movably arranged between the ends of the first wood square (1) and the second wood square (2); and the outer side of the lower connection plate (501) is in contact with the outer sides of the ends of the first wood square (1) and the second wood square (2); the fixing seat (502) is fixedly arranged at the bottom of the lower connection plate (501); and the threaded rod (503) is arranged between the threaded seat (504) and the upper connection plate (505). 03) The bottom end is rotatably arranged inside the fixed seat (502), and a knob is fixedly arranged on the top of the threaded rod (503), the threaded seat (504) is arranged on the outside of the threaded rod (503) through a threaded connection, the upper connecting plate (505) is fixedly arranged on the outside of the threaded seat (504), and the bottom of the upper connecting plate (505) is in contact with the top of the first wooden square (1) and the second wooden square (2), and the upper connecting plate (505) and the lower connecting plate (501) are both arranged in a right-angle structure.

6. The side formwork support construction structure for reserved openings of steel bar truss floor decks according to claim 5 is characterized in that: The connection structure (5) further comprises a guide rod (506), the bottom end of the guide rod (506) being fixedly arranged at the bottom of the lower connection plate (501), the guide seat (507) being slidably arranged at the outside of the guide rod (506), and the guide seat (507) being fixedly arranged at the outside of the upper connection plate (505).

7. The side formwork support construction structure for reserved openings of steel truss floor decks according to claim 6 is characterized in that: The connection structure (5) further comprises cone nails (508), wherein the cone nails (508) are respectively fixedly arranged at the bottom of the upper connection plate (505) and the top of the lower connection plate (501), and the cone nails (508) are inserted into the first wooden square (1) and the second wooden square (2), and the cone nails (508) are arranged in a rectangular array.

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