Steel pipe concrete segment type coat node and its construction method

Abstract

The invention relates to a concrete-filled steel tube sectional type sleeve gusset and a construction method thereof, which relate to a connecting gusset for connecting a concrete-filled steel tube column and a girder in civil engineering and a construction method thereof. The concrete-filled steel tube sectional type sleeve gusset comprises the concrete-filled steel tube column and the steel girder which is connected with the column, wherein the concrete-filled steel tube column is formed by filling concrete into a steel tube; the steel tube is formed by connecting an upper column steel tubeand a lower column steel tube through a connecting sleeve; the connecting sleeve and the lower column steel tube are in split type; an upper reinforcement ring plate and a lower reinforcement ring plate are arranged outside the connecting sleeve; and a vertical connecting plate is arranged between the upper reinforcement ring plate and the lower reinforcement ring plate. The connecting sleeve andthe lower column steel tube in the concrete-filled steel tube sectional type sleeve gusset are in split type, so that the concrete casting strength of the lower column steel tube and the upper columnsteel tube can be different under the condition of construction, thereby the requirement of strong gussets and weak members can be met. Moreover, the concrete-filled steel tube sectional type sleeve gusset has the advantages of concise and definite force transferring path, large gusset rigidity, high bearing capacity, superior mechanical property, good anti-seismic performance and simple and convenient processing and manufacture.

Description

1. Technical field: [0001] The invention relates to a connecting node for connecting a steel pipe concrete column and a beam in civil engineering, in particular to a steel pipe concrete segmental jacket node and a construction method thereof. 2. Background technology: [0002] Concrete poured into the steel pipe forms a steel pipe concrete member, which is a composite member formed by fusing the two materials of steel pipe and concrete. When under pressure, the concrete in the steel pipe is in a three-way compression state due to the constraints of the steel pipe. The three-way compression concrete not only improves the longitudinal compressive strength, but also improves the elastic modulus and increases the plasticity. For the steel pipe, due to the close adhesion of the concrete, it is fully guaranteed that the steel pipe will not buckle locally, the converted stress can reach the yield strength of the steel, and the strength and bearing capacity of the steel pipe can be ...

AI Technical Summary

Problems solved by technology

For example, among the existing joints, the anchor plate joint has simple structure, convenient construction, and saves materials, but its mechanical properties are not ideal; another example is the shear ring beam joint, which has outstanding construction and economic advantages, but its Joints have limited stiffness and poor performance under complex stress conditions

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