Window opening forming superimposed shear wall coupling beam assembling construction method

Abstract

The invention relates to a window opening forming superimposed shear wall coupling beam assembling construction method which comprises the following steps: prefabricating a superimposed shear wall wallboard comprising a window upper wall coupling beam and a window lower wall coupling beam, and transporting the wallboard to a construction site for assembling; and adopting interlayer vertical connecting rebars and post-poured core concrete to effectively connect upper-layer and lower-layer superimposed wallboards. According to the construction method, through changing the quantity of vertical connecting rebars in window upper wall and window lower wall core post-poured concrete when window opening forming superimposed wallboards are assembled, all-pass seam and zero connection coupling beams, half-pass seam and weakly-connected coupling beams, half-pass beam and equi-connection coupling beams can be formed separately to meet different anti-seismic demands; the half-pass seam and weakly-connected upper-lower superimposed deep coupling beams can realize multi-stage working mechanism; this types of coupling beams have sufficient resistant-lateral rigidity and deformation capacity underthe action of frequent earthquakes and earthquakes with the design intensity and can be converted into double coupling beam stress mechanism under the action of the rare occurrence earthquake to meetthe performance objective at different stages.

Description

technical field [0001] The invention relates to the technical field of building engineering construction, in particular to a construction method for assembling a window-opening superimposed shear wall coupling beam that can realize a multi-stage working mechanism. Background technique [0002] As an important part of the shear wall structure system, coupling beams are important components to improve the mechanical performance of shear walls and core tubes in high-rise buildings, and have a decisive impact on the seismic performance of connected shear walls. In actual engineering, traditional cast-in-place deep coupling beams usually have defects such as poor ductility and weak energy dissipation capacity due to too small span-to-height ratio. It cannot be produced in the deep connecting beam first, so it cannot effectively protect the wall pier. To solve the above problems, measures such as reducing the height of the coupling beam and reducing the stiffness of the coupling ...

AI Technical Summary

Problems solved by technology

In actual engineering, traditional cast-in-place deep coupling beams usually have defects such as poor ductility and weak energy dissipation capacity due to too small span-to-height ratio. It cannot be produced in the deep connecting beam first, so it cannot effectively protect the wall pier

To solve the above problems, measures such as reducing the height of the coupling beam and reducing the stiffness of the coupling beam are usually taken. Although the internal force of the coupling beam can be reduced, the overall lateral stiffness of the structure will be reduced at the same time; force, but the setting of oblique reinforcement will increase the difficulty of construction; or divide the deep coupling beam into multiple coupling beams with a larger shear-span ratio to reduce the shear force at the end of the beam to solve the problem of super-reinforcement, although this can be achieved to a certain extent Improve the ductility and energy dissipation capacity of the shear wall structure under earthquake action, but its ultimate bearing capacity and lateral displacement stiffness are lower than those of the deep coupling beam shear wall

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