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The Study on the Restraining Stiffness of Continuous Web Plate Joint of Steel Beam to CFT Column

Author: YuanJiXiong
Tutor: WangZhan
School: Shantou University
Course: Structural Engineering
Keywords: CFST column Feedthrough node Constraint stiffness Finite Element Analysis
CLC: TU398.9
Type: Master's thesis
Year: 2004
Downloads: 168
Quote: 6
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Abstract


In the past two decades , the steel pipe concrete structure is widely used in various fields of civil engineering . In the high-rise and high-rise buildings , due to the special structure of the steel tubular column to promote aspects of beam - column connections , there are over twenty kinds of node types in the project . However , these constraints the stiffness characteristics of the different node types , the introduction of framework design , without exception, is assumed to be rigid connection or hinged node . This assumption is reasonable , and to analyze the impact of the framework , the need to attract our attention. This article as the subject of the National Natural Science Foundation of CFT frame node constraint stiffness \First four 1:3 size node test study , the measurement node zone corner ( the establishment of the M-θ curve ) , force-deformation analysis of node area situation and semi-rigid characteristics; then using ANSYS modeling , finite element analysis , and the test results on the applicability of the model to evaluate conform finite element model of the feedthrough node performance ; Finally, the use of the model to analyze the trend and extent of the impact of beam , column size and other parameters of the feedthrough node constraint stiffness . Through research , given suitable in the mandrel node connected to the finite element analysis model , and the performance of the M-θ curves correspond to different beam-column size parameters . In the subject , we explore for node constraint stiffness information , ( 1 ) the use of finite element tools to build a node model , (2) with a smaller amount of test to verify and correct the finite element model , ( 3) completion of the finite element model constraint stiffness influencing factors . This can avoid a lot of repeated trials , and get in line analytical precision requirements the number noted .

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