Step-bench-separated thin webbed girder type pre-cast stair and installation method thereof

Abstract

The invention provides a step-bench-separated thin webbed girder type pre-cast stair which comprises a stair bench, step plates and tightening latches. The stair bench is a thin webbed girder type bench. The step plates are L-shaped concrete plates. Two lines of triangular bosses are arranged on the two sides of the upper end of the stair bench. Step plate preassembling platforms are arranged between every two adjacent triangular bosses. The step plates are matched and fixedly connected with the triangular bosses. The pre-cast stair has the advantages that the structure is simple, the design scheme of a step-bench-separated thin webbed girder type scissor stair is put forward, the dead weight of the stair is effectively reduced, and the lifting weight requirement of a frequently-used ordinary tower crane can be met; meanwhile, due to the connection mode of the step plates and bench plates which are separated, operation is easy, and connection is firm.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a thin-web beam type prefabricated staircase with separated steps and steps and an installation method thereof. Background technique [0002] The industrialization of new buildings has attracted great attention in the industry due to its energy-saving and environmental protection features. The national and local governments have also issued a series of policies to promote and encourage the development of industrialization of buildings. At present, my country's construction industrialization is still in its infancy. The standardized design of prefabricated buildings, the maturity of construction technology and the production capacity of prefabricated components all restrict the construction industry from fully adopting the production mode of prefabricated buildings. However, it is feasible to adopt prefabricated production methods for building parts and components. For this re...

AI Technical Summary

Problems solved by technology

In this method, a beam protrudes from the middle of the scissors ladder, which affects the architectural effect of the ladder section and reduces the headroom of the ladder section. The construction is cumbersome and the economy is not strong.

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