A combination tool for preforming concrete ground separation joints and its pre-embedding method

Abstract

The invention discloses a concrete ground partitioning seam pre-forming combined tool and a pre-buried method thereof. The tool is composed of push-supporting steel plates, partitioning steel plates,pulling holes, bolt sliding ways, bolts and pulling ropes. The bolt sliding ways are cut in the upper portions of one ends of the partitioning steel plates in the length direction, the push-supportingsteel plates are welded to the other end faces of the partitioning steel plates, and the pulling holes are formed in the positions, close to the bolt sliding ways, of the partitioning steel plates ina cut mode. The bolt sliding ways of the two partitioning steel plates are mutually matched, the corresponding two bolts are arranged in each sliding way, and the position between the pulling holes of the two partitioning steel plates is sleeved with the pulling ropes. The concrete ground partitioning seam pre-forming combined tool is simple in construction method, convenient to operate and goodin effect and has visibility and controllability; and the cracking problem of the ground at a door opening can be effectively solved, according to the method, the construction difficulty of workers isreduced, the ground perception degree is increased, and the development prospects are large.

Description

technical field [0001] The invention belongs to the field of building construction, and relates to a construction tool that is pre-buried at the bottom of a door opening before pouring concrete ground, which can divide the inside and outside of the ground at the bottom of the door opening, reduce irregular cracks in the concrete ground, and ensure the quality of the ground. Specifically, The invention relates to a combination tool for preforming concrete ground separation joints and a pre-embedding method thereof. Background technique [0002] Nowadays, the construction at the opening of the traditional floor is generally carried out together, and the ground is not divided. During the process of the concrete on the ground gradually increasing its strength, the concrete surface is easy to shrink, especially at the opening of the door, there will be many cracks. Use other materials such as brushing interface agent, but after a long time, cracks will appear on the ground. Such ...

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Problems solved by technology

[0002] Nowadays, the construction at the opening of the traditional floor is generally carried out together, and the ground is not divided. During the process of the concrete on the ground gradually increasing its strength, the concrete surface is easy to shrink, especially at the opening of the door, there will be many cracks. Use other materials such as brushing interface agent, but after a long time, cracks will appear on the ground, such repairs will cause a lot of manpower and material resources to be invested in repairs in the later stage, resulting in high maintenance costs

[0003] Today, a large number of residential buildings, office buildings and basements use concrete floors. Concrete floors are easy to obtain and the construction technology is mature. However, the problem of concrete cracking at the door of the indoor concrete floor has been difficult to solve. also caused a lot of trouble

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