Early-removing independent support strip

Abstract

The invention discloses an early-removing independent support strip which comprises a plurality of parallel early-removing devices, wherein each early-removing device comprises a steel bracing strut (1), a standard keel (2) and a side keel (3). The early-removing independent support strip is characterized in that the early-removing device further comprises a top plate support head (4), a connection plate (5) and a connecting bar (6); the lower end of the top plate support head (4) is connected with the steel bracing strut (1); the left end and the right end of the top plate support head (4) are respectively connected with the standard keel (2) and the side keel (3) through the connection plate (5) and the connecting bar (6). The early-removing independent support strip provided by the invention is reasonably designed, safe and reliable and can be widely popularized and applied.

Description

technical field [0001] The invention relates to an early demolition independent support strip, which belongs to the technical field of building construction. Background technique [0002] In the construction of concrete structures, in order to shorten the demolition time of floor formwork, accelerate the turnover of floor formwork and other materials, and reduce the input of floor formwork materials, the current common method is to use the form of early demolition head to realize early demolition of floor formwork . Its working principle is to remove the slab without removing the supporting column head. When the concrete strength of the floor slab reaches more than 50% of the design strength 3 to 4 days after pouring, the floor formwork and part of the support can be removed, and the column remains in the supporting state after the early removal of the head. When the concrete strength meets the design requirements, remove all vertical supports. [0003] In the actual opera...

AI Technical Summary

Problems solved by technology

[0004] 1) Due to the uneven technical level of the operators, the setting of the early demolition heads is often arbitrary, and it is impossible to ensure that the concrete strength of the early demolition heads can meet the specification requirements when the formwork is demolished;

[0005] 2) Since the early dismantling head is set on the pole, which is no different from the surrounding poles, when the operator removes the formwork poles, he often wants to connect all the poles together for convenience, remove them together, and then re-support the top , in this way, there are serious structural safety and quality hidden dangers, and they cannot play the role of independent support at all, and this phenomenon generally exists on the construction site;

[0006] 3) The early demolition head itself only relies on a small area of ​​iron plate in contact with the concrete surface, and the supporting area is limited

At the same time, due to the thinner pole, sometimes it cannot be in a vertical line with the early demolition head, which seriously affects its force and stability.

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