Detachable post-cast strip reinforcing device

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a detachable post-cast strip reinforcing device which comprises an assembly type supporting column, the assembly type supporting column is composed of short steel pipe barrels and pipe barrel hoops, the short steel pipe barrels are connected in a splicing mode, and the pipe barrel hoops are used for fixing the adjacent short steel pipe barrels. The height of the supporting column can be finely adjusted through the multiple stirrup clamping grooves, the stirrup clamping grooves are matched with the cylinder stirrups, and it is ensured that the supporting device is firm and stable in the construction process. The concrete cylinder core is arranged in the device, the bearing capacity of the supporting column is enhanced, and the post-cast strip can be effectively supported. Due to the detachable design of the assembly type supporting columns, the device is convenient to disassemble and recombine, good recoverability is achieved, the construction cost is reduced, and the material utilization rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a detachable post-pouring strip reinforcement device. Background Technology

[0002] Post-cast strips in residential buildings are temporary construction joints typically reserved during the construction of the building's ground surface to address issues such as concrete shrinkage, temperature changes, and uneven foundation settlement. The placement of post-cast strips is crucial for ensuring the stability of the building structure. Their width is generally 700-1000mm, with the specific width determined based on design requirements and actual project conditions. Post-cast strips are usually placed along the length of the building, at locations of structural changes, or in areas of stress concentration, such as between the main building and the podium, or between the underground parking garage and the building. They come in various forms, including straight joints, stepped joints, and tongue-and-groove joints; the appropriate type should be selected based on the structural form and waterproofing requirements.

[0003] To ensure the strength and construction quality of the post-cast strip, the reinforcing bars must be installed continuously without being cut. If cutting is necessary for construction, welding or lap splicing should be performed before pouring concrete to ensure the load-bearing capacity of the reinforcing bars. Regarding formwork erection, the formwork support system for the post-cast strip needs to be independent. This system must ensure shared load-bearing with adjacent structures during construction, and also ensure that the formwork for the post-cast strip can work independently after the formwork and supports of adjacent structures are removed. Furthermore, there should be no gaps between the concrete structure on both sides of the post-cast strip and the formwork.

[0004] However, existing post-cast strip reinforcement devices typically employ integrated support columns or concrete columns. Integrated support columns lack flexibility, their support height is difficult to adjust, and they lack sufficient adaptability when frequent adjustments are required. Concrete column supports are not only non-recyclable but also increase construction costs and material waste, making them uneconomical and impractical. While existing reinforcement devices meet support requirements, they suffer from issues such as unstable support and insufficient load-bearing capacity, especially during the post-cast strip construction phase. These devices cannot effectively prevent the excavation of beams and slabs, and the excessive density of support equipment can hinder construction on the working surface. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a detachable post-pouring strip reinforcement device. Through its detachable and height-adjustable design, it can more flexibly meet the support requirements under different construction conditions, ensure the structural stability during the construction of the post-pouring strip, and effectively improve construction efficiency and reduce construction costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A detachable post-pouring strip reinforcement device includes an assembled support column, which includes a short steel pipe and a pipe clamp. The short steel pipes are spliced ​​together end to end, and the pipe clamp is nested and installed at the splice part of the short steel pipes. The pipe clamp is used to connect and fix adjacent short steel pipes.

[0008] Furthermore, the pipe clamp includes clamp plate A and clamp plate B, and a clamping bolt passes through clamp plate A and clamp plate B.

[0009] Furthermore, the top and bottom outer sides of the short steel pipe cylinder are uniformly provided with stirrup slots, and the inner sides of the stirrup plate A and stirrup plate B are provided with cylinder stirrups. The cylinder stirrups are adapted to the stirrup slots. Multiple stirrup slots are provided to adjust the installation height of the assembled support column. The cylinder stirrups are used to prevent slippage and firmly tighten the pipe cylinder and the short steel pipe cylinder.

[0010] Furthermore, the short steel tube is equipped with a concrete core.

[0011] Furthermore, the hoop plate A and the hoop plate B are connected by hoop bolts.

[0012] Furthermore, a support base plate is installed at the bottom of the assembled support column, and the support base plate is used to support the assembled support column.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Firstly, addressing the issues of poor flexibility and difficult installation and adjustment in existing post-cast strip reinforcement devices, this invention provides a flexible and adjustable support device by employing a short steel pipe and an adjustable pipe clamp structure. The modular column design allows the support equipment to be adjusted in height as needed, meeting the support requirements of different construction stages. Through the cooperation of multiple stirrup slots and pipe stirrups, the column height can be precisely adjusted, ensuring its stable support of the post-cast strip throughout construction without affecting other construction progress. This design effectively solves the problem of traditional support columns' inflexible height adjustment, improving construction efficiency and flexibility.

[0015] Secondly, most existing post-cast strip reinforcement devices use fixed support columns or non-recyclable concrete columns, leading to difficulties in disassembly, inconvenience in use, and material waste when reused. The detachable design of this invention solves this problem. The modular support column can be disassembled and reassembled according to construction needs, has good recyclability, reduces construction costs, and improves material utilization. Compared with concrete columns, the modular support column not only reduces the weight of the equipment but also eliminates the need for additional tools or manpower during disassembly, greatly simplifying the subsequent disassembly process. Attached Figure Description

[0016] Figure 1This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the short steel pipe cylinder of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the pipe clamp of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of hoop plate A or hoop plate B of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the present invention under construction conditions;

[0021] Figure 6 This is a three-dimensional structural diagram of the short steel pipe cylinder according to Embodiment 2 of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 101. Assembled support column; 102. Short steel pipe cylinder; 121. Stirrup slot; 103. Pipe cylinder hoop; 131. Hoop plate A; 132. Hoop plate B; 133. Hoop bolt; 134. Cylinder stirrup; 104. Concrete cylinder core; 105. Bottom foundation; 106. Upper non-load-bearing foundation; 107. Upper load-bearing foundation; 108. Post-cast strip; 109. Reinforcing steel cage. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. Example

[0025] like Figure 1-3 As shown, the detachable post-cast strip reinforcement device includes an assembled support column 101. The assembled support column 101 consists of short steel pipe cylinders 102 and pipe clamps 103. The ends of the short steel pipe cylinders 102 are connected by splicing, and the pipe clamps 103 are nested and installed at the splicing parts of the short steel pipe cylinders 102. The pipe clamps 103 are used to connect and fix adjacent short steel pipe cylinders 102. The short steel pipe cylinders 102 are made of high-strength steel pipe material (such as Q235 steel, outer diameter 50mm, wall thickness 3mm), which has good compressive strength and durability, ensuring that they can withstand high loads during construction.

[0026] like Figure 2 and Figure 4As shown, the pipe clamp 103 includes clamp plate A131 and clamp plate B132, which are connected by a clamping bolt 133. Clamp plates A131 and B132 are typically made of 5mm thick steel plates and are welded to ensure structural stability and durability. The clamping bolt 133 is an M16 high-strength bolt with a tensile strength of up to 1000MPa, effectively locking clamp plates A131 and B132 and preventing the support from loosening during construction.

[0027] like Figures 1-4 As shown, the top and bottom outer sides of the short steel pipe cylinder 102 are uniformly provided with stirrup slots 121. The stirrup slots 121 are made of steel (such as Q235B) and have a depth of 10mm. The inner sides of the hoop plates A131 and B132 are provided with cylindrical stirrups 134, which are made of the same high-strength steel as the short steel pipe cylinder 102 and can be matched with the stirrup slots 121. Multiple stirrup slots 121 are used to adjust the installation height of the assembled support column 101 to adapt to different construction needs. The number of stirrup slots 121 can be adjusted according to the height of the support column and the specific requirements of the construction site, generally 6-8 slots.

[0028] The stirrups 134 serve to prevent slippage and tighten the connection, ensuring a secure bond between the tube clamp 103 and the short steel tube 102. The cooperation between the stirrups 134 and the stirrup slots 121 prevents the support from slipping during adjustment, thereby improving the stability of the device.

[0029] like Figure 2 As shown, the short steel pipe cylinder 102 has a concrete core 104 inside. The concrete core 104 is made of C30 grade concrete, and the internal structure is reinforced with a steel mesh to enhance its strength, ensuring that the short steel pipe cylinder 102 can withstand the pressure from the upper structure during construction and enhancing its support capacity. The concrete core 104 has an inner diameter of 48mm, an outer diameter of 50mm, and a thickness of 2mm, effectively improving the compressive strength of the short steel pipe cylinder 102.

[0030] like Figure 3 As shown, hoop plate A131 and hoop plate B132 are connected by hoop bolt 133. The tightening force of hoop bolt 133 can be adjusted through standardized operation to ensure the stability of the support. By adjusting hoop bolt 133, the short steel pipe cylinder 102 can be easily and precisely adjusted to meet specific construction requirements, thereby achieving the supporting effect of the post-pouring strip reinforcement device.

[0031] like Figure 1 As shown, the bottom end of the assembled support column 101 is equipped with a support base plate 111. The support base plate (111) is used to support the assembled support column 101, making the assembled support column 101 more stable. Example

[0032] like Figure 6 Based on Embodiment 1, this solution improves the structure of the short steel pipe cylinder 102, eliminates the method of connecting and fixing the two short steel pipe cylinders 102 with the pipe cylinder clamp 103, and welds pipe cylinder flanges 122 at both ends of the short steel pipe cylinder 102. The two short steel pipe cylinders 102 are connected by the pipe cylinder flanges 122. When connecting, bolts are used to pass through the pipe cylinder flanges 122 for fastening, making the connection more firm and stable.

[0033] The working principle of this utility model is as follows:

[0034] refer to Figure 4 During construction, the assembled support column 101 is assembled between the upper non-bearing foundation 106 and the lower foundation 105 on both sides of the post-cast strip 108, and between the upper bearing foundation 107 and the lower foundation 105. The amount of short steel pipe cylinder 102 used is adjusted according to the distance between the upper non-bearing foundation 106 and the lower foundation 105. The detachable assembled support column 101 is flexible and convenient to use and easy to disassemble.

[0035] After the assembled support column 101 is erected, expansion bolts are driven into the base plate 111 of the support column and the bottom foundation 105 for fixation.

[0036] Then finely adjust the height of the assembled support column 101. The adjustment method is to tighten or loosen the hoop bolt 133, pull the short steel pipe 102 upward until the top short steel pipe 102 touches the bottom surface of the upper load-bearing foundation 107 or the upper unloaded foundation 106, and then tighten the hoop bolt 133.

[0037] Once the reserved construction period is reached, the post-cast strip 108 can be filled with concrete.

[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A removable post-cast strip reinforcement device comprising an assembly type support (101), characterized in that: The assembled support column (101) comprises short steel pipe cylinders (102) and pipe cylinder hoops (103), the short steel pipe cylinders (102) are connected in series, the pipe cylinder hoops (103) are nested on the joint of the short steel pipe cylinders (102), and the pipe cylinder hoops (103) are used for connecting and fixing adjacent short steel pipe cylinders (102). The pipe cylinder hoop (103) comprises a hoop plate A (131) and a hoop plate B (132), and hoop tightening bolts (133) are arranged between the hoop plate A (131) and the hoop plate B (132).

2. The removable post-cast strip reinforcement device of claim 1, wherein: The top and the bottom of the short steel pipe cylinder (102) are uniformly provided with hoop reinforcement clamping grooves (121), the inner sides of the hoop plate A (131) and the hoop plate B (132) are provided with cylinder hoop reinforcements (134), the cylinder hoop reinforcements (134) are matched with the hoop reinforcement clamping grooves (121), a plurality of hoop reinforcement clamping grooves (121) are arranged for adjusting the installation height of the assembled support column (101), and the cylinder hoop reinforcements (134) are used for preventing the pipe cylinder hoop (103) and the short steel pipe cylinder (102) from slipping and being tightly fixed.

3. The removable post-cast strip reinforcement device of claim 1, wherein: The inside of the short steel pipe cylinder (102) is provided with a concrete cylinder core (104).

4. The removable post-cast strip reinforcement device of claim 1, wherein: The hoop plate A (131) and the hoop plate B (132) are connected through the hoop tightening bolts (133).

5. The removable post-cast strip reinforcement device of claim 1, wherein: The bottom end of the assembled support column (101) is provided with a support column bottom plate (111), and the support column bottom plate (111) is used for supporting the assembled support column (101).

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