Structure for preventing bolt of steel plate shear wall with slits from slipping

Abstract

The invention discloses a structure for preventing bolts connecting a steel plate shear wall with slits with a frame beam from slipping. Bolt holes for connecting an upper frame beam and a lower frame beam are formed on the upper and lower ends of the main steel plate with slits; the density and row number of the bolt holes at corners at the upper and lower ends of the main steel plate with slits are greater than those of the middle bolt holes; and the four edges of the main steel plate with slits are reinforced to form a closed system. Due to the targeted layout mode of the bolts connecting the steel plate shear wall with slits with the frame beam and the closed edge reinforcing system, the bolt slipping is prevented or delayed, the noise caused by the bolt slipping is eliminated, relatively loss of high earthquake resistance of the steel plate shear wall with slits caused by the bolt slipping is avoided, and the field full-bolt connection of the steel plate shear wall with slits is ensured so as to enable disassembly and replacement after earthquake damage and protect the steel plate shear wall with slits from excessive vertical load. The closed edge reinforcing system also solves the problem of bolt slipping induced or intensified by unbalanced corners of the steel plate shear wall.

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to a structure for preventing bolts from slipping in steel plate shear walls with slits. Background technique [0002] The concept of steel plate shear wall with slots was first proposed by Japanese scholars Toko Hitaka et al. in 2002. The basic principle is: open a number of vertical seams on the steel plate, so that the steel plate belt (also known as the columnar part) between the vertical seams works like a bending column, so that the deformation of the original non-slit steel plate mainly shears into a belt seam. The main deformation of the steel plate is bending, which greatly improves the deformation and energy dissipation capacity of the steel plate shear wall with seams. The steel plate shear wall with slots also has the advantages of adjustable stiffness (through the joint parameters), flexible space layout (not connected with columns but only w...

AI Technical Summary

Problems solved by technology

[0009] 1) It brings high-frequency, sharp and piercing noise, which makes it difficult for users to bear;

[0010] 2) Cause the steel plate wall with seam to rotate within the range of the upper and lower installation gaps with the frame beam, and then squeeze the connecting plate of the frame beam to cause its corner instability and damage, and the corner instability will reduce its bearing capacity and deformation and energy consumption

The test shows that this kind of connection is very likely to cause the problem of bolt slippage. Bolt slippage not only brings huge noise, but also leads to a large loss of component ductility and energy dissipation performance

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