Constructional column cut-off device along with main body construction and construction method

Abstract

The invention relates to the technical field of building construction, in particular to a constructional column cut-off device along with main body construction and a construction method.Two L-shaped steel plates are combined into a detachable formwork, a cut-off space is formed through inserting plates, traditional foam plates or gravel filling is replaced, and the problems of material residues and concrete invasion are avoided; the height of the concrete liquid level is monitored in real time through the observation hole, and the accuracy of the cut-off position is ensured by combining stepped insertion of the insertion plate; the constructional column can be poured and cut off through one-time formwork erecting, secondary filling or repairing is not needed, the inserting plate and the formwork are in clearance fit to form a closed cut-off area, the concrete interface is neat, and loose gravel or foam residues do not exist.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a structural column following main body construction cutting device and a construction method. Background Art

[0002] In order to improve the seismic performance, integrity and stability of the masonry structure of multi-story buildings, reinforced concrete structural columns should be set in the building walls and connected with the ring beams of each floor to jointly strengthen the stability of the building. In the masonry structure, its main function is to work with the ring beam to form integrity and enhance the seismic performance of the masonry structure. The second is to reduce and control the cracks in the wall. In addition, it can also enhance the strength of the masonry.

[0003] During the construction phase, in order to achieve good construction results in terms of safety, quality and progress, and to reduce the amount of secondary structure masonry and wet work in the later stage, most of the structural columns will be taken out during the construction of the main primary structure. However, according to the requirements of the seismic code, the structural columns are mainly set in the seismic wall. The structural columns are not mainly responsible for vertical loads, but for resisting shear force, earthquake and other lateral loads. Through safety calculations, if the structural columns are directly connected to the main structure, the overall stiffness of the structure will increase, and the overall structure will produce brittle failure, seriously affecting the safety and durability of the structure. According to the seismic design code for buildings and the 12G03 atlas, the structural columns in the masonry infill wall and the bottom of the main structure beam are connected flexibly.

[0004] At present, during the construction of the main body, flexible materials are added to the joint between the top of the structural column and the bottom of the beam to cut it off. One is to use polystyrene board or foam board to fill the joint, and the other is to cover the top of the structural column with sand and gravel after the structural column is poured to the bottom of the beam, so as to achieve the effect of disconnecting the structural column from the main beam and slab. In the traditional construction method, since the structural column steel bars are anchored into the main beam and slab structure, whether it is filled with foam board or blocked with sand and gravel, there are many quality problems in the construction, such as difficult operation, difficult to control the liquid level of the structural column concrete, poor molding quality of the material filling intrusion into the concrete, etc. After the construction, the top of the structural column needs to be chiseled or repaired, which increases the construction manpower and material investment, and the construction cost is high.

[0005] In order to overcome the above problems, improve installation efficiency, ensure construction quality, reduce labor intensity and material waste, and better adapt to similar environments in engineering, a structural column following main body construction truncation device and construction method are proposed. Utility Model Content

[0006] The utility model aims to solve the above problems, thereby providing a structural column cutting device and a construction method for the main body during construction.

[0007] The utility model solves the above problems and adopts the following technical solutions: A structural column cutting device for main body construction, comprising a template sleeved on the outer periphery of the top steel bar of the structural column, the template being composed of two L-shaped steel plates connected end to end, two long first plug holes being horizontally opened on the main sides of the L-shaped steel plates, a first plug plate being inserted into the first plug hole, the end of the first plug plate passing through the first plug hole on the other L-shaped steel plate, and a notch being opened on the first plug plate corresponding to the position of the steel bar inside the structural column; Two second plug holes are horizontally provided on the secondary side of the L-shaped steel plate and between the two first plug holes, a second plug plate is inserted into the second plug hole, the end of the second plug plate passes through the second plug hole on the other L-shaped steel plate, a notch is provided on the second plug plate corresponding to the position of the steel bar inside the structural column, and the first plug plate and the second plug plate are gap-matched; An observation hole is provided on the main side of the L-shaped steel plate and between the two first insertion holes, and a positioning plate is provided on the outer side of the secondary side of the L-shaped steel plate and on the sides away from the two second insertion holes.

[0008] Furthermore, an outer ring lock buckle is provided on the outer side of the end of the main side of the L-shaped steel plate, and an inner ring lock buckle is provided on the inner side of the end of the secondary side for use with the outer ring lock buckle of the other L-shaped steel plate. The inner ring lock buckles of the two L-shaped steel plates are aligned with the outer ring lock buckles up and down, and are inserted with pins; the two L-shaped steel plates can be spliced ​​quickly, and installation and disassembly are relatively quick.

[0009] Furthermore, reinforcing ribs are provided on the inner sides of the main side and the secondary side of the L-shaped steel plate to increase the deformation resistance of the L-shaped steel plate.

[0010] A construction method for a structural column with a main body construction truncation device is carried out according to the following steps: Step 1: When constructing the column formwork, reserve the installation height of the L-shaped steel plate at the top; Step 2: Connect the two L-shaped steel plates end to end on the outer periphery of the steel bars at the top of the structural column, align the inner annular lock buckle with the outer annular lock buckle up and down, insert the pin into the lock hole to lock, and form a casing; Step 3: Use wooden blocks to support the positioning plate and fix the casing formed by the two L-shaped steel plates as a whole; Step 4: pouring and vibrating the structural column. During the pouring process, if the concrete overflows from the observation hole, stop pouring the concrete, and then use a vibrating rod to continue vibrating until the concrete liquid level is at the bottom edge of the observation hole. Then stop vibrating, insert the two pairs of first plug plates and the second plug plates into the corresponding plug holes, continue pouring concrete on the top, and the gap left between the two pairs of plug plates is used to cut off the top of the structural column; Step 5: When the concrete of the structural column reaches the demolding strength, remove it together with the structural column formwork, clean the L-shaped steel plate and the plug plate, and reuse them.

[0011] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features: The present invention has a simple structure, convenient construction operation, modular detachable cutoff, and the L-shaped steel plate is locked by an outer ring lock and an inner ring lock pin, so the installation and reinforcement are relatively quick; two L-shaped steel plates are combined into a detachable template, and a cutoff space is formed by a plug-in plate, which replaces the traditional foam board or sand and gravel filling, and avoids the problem of material residue and intrusion into concrete; the concrete liquid level is monitored in real time through the observation hole, and the step-by-step insertion of the plug-in plate is combined to ensure the accuracy of the cutoff position; the casting and cutoff of the structural column can be completed by one-time formwork support, without the need for secondary filling or repair, and the gap between the plug-in plate and the template is matched to form a closed cutoff area, and the concrete interface is neat without loose sand or foam residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model; Figure 2 This is a schematic diagram of the splicing structure of the template of the embodiment of the utility model; Figure 3 This is a schematic diagram of the structure of an L-shaped steel plate in an embodiment of the utility model; Figure 4 This is a schematic diagram of the structure of the use state of an embodiment of the utility model; Marked in the figure are: template 1, second plug plate 2, first plug plate 3, structural column 4, L-shaped steel plate 11, main side 111, secondary side 112, first plug hole 113, second plug hole 114, observation hole 115, positioning plate 116, outer annular lock buckle 117, inner annular lock buckle 118, and reinforcing rib 119. DETAILED DESCRIPTION

[0013] The present invention is further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0014] See also Figure 1-Figure 4 A structural column cutting device for main body construction, comprising a template 1 sleeved on the outer periphery of the top steel bar of the structural column, the template is composed of two L-shaped steel plates 11 connected end to end, two long first plug holes 113 are horizontally opened on the main side 111 of the L-shaped steel plate 11, a first plug plate 3 is inserted in the first plug hole 113, the end of the first plug plate 3 passes through the first plug hole 113 on the other L-shaped steel plate 11, and a notch is opened on the first plug plate 3 corresponding to the position of the steel bar inside the structural column 4; Two second plug holes 114 are horizontally provided on the secondary side 112 of the L-shaped steel plate 11 and between the two first plug holes 113. A second plug plate 2 is inserted into the second plug hole 114. The end of the second plug plate 2 passes through the second plug hole 114 on the other L-shaped steel plate 11. A notch is provided on the second plug plate 2 corresponding to the position of the steel bars inside the structural column 4. The first plug plate 3 and the second plug plate 2 are clearance-matched. An observation hole 115 is provided on the main side 111 of the L-shaped steel plate 11 and between the two first insertion holes 113 , and a positioning plate 116 is provided outside the secondary side 112 of the L-shaped steel plate 11 and on the far side of the two second insertion holes 114 .

[0015] Furthermore, an outer ring lock buckle 117 is provided on the outer side of the end of the main side 111 of the L-shaped steel plate 11, and an inner ring lock buckle 118 is provided on the inner side of the end of the secondary side 112 for use with the outer ring lock buckle 117 of the other L-shaped steel plate 11. The inner ring lock buckles 118 and the outer ring lock buckles 117 of the two L-shaped steel plates 11 are aligned up and down, and are inserted with pins; the two L-shaped steel plates 11 can be quickly spliced ​​together, and installation and disassembly are relatively quick.

[0016] Furthermore, reinforcing ribs 119 are provided on the inner sides of the main side 111 and the secondary side 112 of the L-shaped steel plate 11 to increase the anti-deformation performance of the L-shaped steel plate 11 .

[0017] A construction method for a structural column with a main body construction truncation device is carried out according to the following steps: Step 1: When supporting the formwork of the structural column 4, reserve the installation height of the L-shaped steel plate 11 at the top; Step 2: Connect the two L-shaped steel plates 11 end to end on the outer periphery of the top steel bar of the structural column 4, align the inner annular lock buckle 118 with the outer annular lock buckle 117 up and down, insert the latch into the lock hole to lock, and form a casing; Step 3: Use a wooden block to support the positioning plate 116 to fix the casing formed by the two L-shaped steel plates 11 as a whole; Step 4: pouring and vibrating the structural column 4. During the pouring process, when the concrete overflows from the observation hole 115, the concrete pouring is stopped. The vibrating rod is used to continuously vibrate until the concrete liquid level is located at the lower edge of the observation port 115. The vibration can be stopped. The two pairs of first plug plates 3 and second plug plates 2 are inserted into the corresponding plug holes. The concrete pouring is continued on the upper part. The gap left between the two pairs of plug plates is used to cut off the top of the structural column 4. Step 5: When the concrete of the structural column 4 reaches the demolding strength, it is removed together with the structural column formwork, and the L-shaped steel plate 11 and the plug plate are cleaned and reused.

[0018] The present invention has a simple structure, convenient construction operation, modular detachable cutoff, and the L-shaped steel plate is locked by an outer ring lock and an inner ring lock pin, so the installation and reinforcement are relatively quick; two L-shaped steel plates are combined into a detachable template, and a cutoff space is formed by a plug-in plate, which replaces the traditional foam board or sand and gravel filling, and avoids the problem of material residue and intrusion into concrete; the concrete liquid level is monitored in real time through the observation hole, and the step-by-step insertion of the plug-in plate is combined to ensure the accuracy of the cutoff position; the casting and cutoff of the structural column can be completed by one-time formwork support, without the need for secondary filling or repair, and the gap between the plug-in plate and the template is matched to form a closed cutoff area, and the concrete interface is neat without loose sand or foam residue.

[0019] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A structural column cutting device for main body construction, comprising a template sleeved on the outer periphery of the top steel bar of the structural column, characterized in that: The template is composed of two L-shaped steel plates connected end to end, two long first plug holes are horizontally opened on the main side of the L-shaped steel plate, a first plug plate is inserted into the first plug hole, the end of the first plug plate passes through the first plug hole on the other L-shaped steel plate, and a notch is opened on the first plug plate corresponding to the position of the steel bar inside the structural column; Two second plug holes are horizontally provided on the secondary side of the L-shaped steel plate and between the two first plug holes, a second plug plate is inserted into the second plug hole, the end of the second plug plate passes through the second plug hole on the other L-shaped steel plate, a notch is provided on the second plug plate corresponding to the position of the steel bar inside the structural column, and the first plug plate and the second plug plate are gap-matched; An observation hole is provided on the main side of the L-shaped steel plate and between the two first insertion holes, and a positioning plate is provided on the outer side of the secondary side of the L-shaped steel plate and on the sides away from the two second insertion holes.

2. The structural column cutting device for main body construction according to claim 1 is characterized in that: An outer ring lock buckle is arranged on the outer side of the end of the main side of the L-shaped steel plate, and an inner ring lock buckle is arranged on the inner side of the end of the secondary side for use with the outer ring lock buckle of another L-shaped steel plate. The inner ring lock buckles of the two L-shaped steel plates are aligned with the outer ring lock buckles up and down, and are inserted with pins.

3. The structural column cutting device for main body construction according to claim 1 is characterized in that: Reinforcing ribs are arranged on the inner sides of the main side and the secondary side of the L-shaped steel plate.

4. A construction method for a structural column main body construction and cutting device according to any one of claims 1 to 3, characterized in that: Follow these steps: Step 1: When constructing the column formwork, reserve the installation height of the L-shaped steel plate at the top; Step 2: Connect the two L-shaped steel plates end to end on the outer periphery of the top steel bar of the structural column, align the inner annular lock buckle with the outer annular lock buckle up and down, insert the pin into the lock hole to lock, and form a casing; Step 3: Use wooden blocks to support the positioning plate and fix the casing formed by the two L-shaped steel plates as a whole; Step 4: pouring and vibrating the structural column. During the pouring process, if the concrete overflows from the observation hole, stop pouring the concrete, and then use a vibrating rod to continue vibrating until the concrete liquid level is at the bottom edge of the observation hole. Then stop vibrating, insert the two pairs of first plug plates and the second plug plates into the corresponding plug holes, continue pouring concrete on the top, and the gap left between the two pairs of plug plates is used to cut off the top of the structural column; Step 5: When the concrete of the structural column reaches the demolding strength, remove it together with the structural column formwork, clean the L-shaped steel plate and the plug plate, and reuse them.

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