Prestress wall removing technology implemented by aid of non-binding steel strands

Abstract

The invention discloses a prestress wall removing technology implemented by the aid of non-binding steel strands. The prestress wall removing technology includes an external prestress wall removing technology implemented by the aid of the non-binding steel strands and an internal prestress wall removing technology implemented by the aid of the non-binding steel strands. The external prestress wall removing technology implemented by the aid of the non-binding steel strands is implemented when bearing walls to be removed are short in span or low in borne load and ring beams are arranged on the tops of the walls; the internal prestress wall removing technology implemented by the aid of the non-binding steel strands is implemented when the bearing walls to be removed are large in span or high in borne load, more than six steel strands are required by each bearing wall, end anchoring is difficult to handle or the ring beams are unavailable on the tops of the walls. The prestress wall removing technology has the advantages that the prestress wall removing technology is safe and simple in construction, short in construction period and low in cost, detachment or additional temporary bracing can be omitted, good effects can be realized, and the service lives are synchronized with those of original structures.

Description

technical field [0001] The invention relates to the field of construction engineering transformation, in particular to the technology of unbonded steel strand prestressed wall demolition. Background technique [0002] In a brick-concrete structure house, the load-bearing wall is the most important load-bearing member, which not only bears the weight of the superstructure, but also acts as a partition wall. The existing technology for removing load-bearing walls is still relatively backward, and only load-bearing walls with relatively small spans and low loads can be removed. When the span is not large, steel beams are generally used as replacement beams; when the span is large, reinforced concrete beams are used as replacement beams on both sides of the load-bearing wall. Since the replacement beam will be deformed after the load-bearing wall is removed, it is easy to cause cracks in the upper structure, and the construction period is long and the cost is high. Contents o...

AI Technical Summary

Problems solved by technology

Since the replacement beam will be deformed after the load-bearing wall is removed, it is easy to cause cracks in the upper structure, and the construction period is long and the cost is high

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