Connecting device and method for connecting column base joints

Abstract

The invention discloses a connecting device and method for connecting column base joints and belongs to the technical field of building structure engineering. The connecting device for connecting thecolumn base joints comprises a first steel column, a first arc end plate, a second arc end plate, a second steel column, a sleeve and a connecting mechanism. A connecting hole is formed in the first steel column, and the first arc end plate is connected with the first steel column. The first side of the second arc end plate is connected with the first arc end plate though a fastening piece, and the second steel column is connected with the second side of the second arc end plate. The sleeve is arranged in the connecting hole, the first end of the connecting mechanism is movably connected withthe sleeve, and the second end of the connecting mechanism penetrates through the first arc end plate to be connected with the second arc end plate. According to the connecting device and method for connecting the column base joints, the column base joints are fabricated joints, joint ductility is good, plastic hinging is prevented from occurring to the column end, the mode is simple, the economical and practical effects are achieved, and on-site construction is convenient.

Description

technical field [0001] The invention relates to the technical field of building structure engineering, in particular to a connecting device for connecting column base nodes. Background technique [0002] my country's current building seismic design code stipulates that the frame structure is designed according to the beam-hinge yield mechanism to meet the seismic requirements, the core of which is to meet the "strong column weak beam" condition of the joint, but the following problems may still exist when the joint meets the "strong column weak beam" : [0003] Even if the structure meets the "strong column weak beam" condition required by the code, it is difficult to avoid the appearance of plastic hinges at the end of the column when the structure encounters a strong earthquake, resulting in structural damage and reduced shock absorption performance; [0004] When the structural span is large, it is neither economical nor practical to require all frame joints to meet the c...

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Problems solved by technology

[0005] The present invention provides a connection device and method for connecting column foot nodes, which solves or partially solves the problem of "strong column and weak beam" in the prior art, but it is difficult to avoid the appearance of plastic hinges at the end of the column, resulting in structural damage. The shock absorption performance is reduced. When the structural span is large, it is neither economical nor practical to require all frame joints to meet the "strong column weak beam" condition.

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