方形 CFST 柱螺栓法兰拼接连接试验研究

IF 3.9 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2024-10-28 DOI:10.1016/j.istruc.2024.107644

Mei-Ling Chen, Xue-Chun Liu, Xuesen Chen, Yong-Li Tao

{"title":"方形 CFST 柱螺栓法兰拼接连接试验研究","authors":"Mei-Ling Chen, Xue-Chun Liu, Xuesen Chen, Yong-Li Tao","doi":"10.1016/j.istruc.2024.107644","DOIUrl":null,"url":null,"abstract":"<div><div>Bolted-flange connections for CFST columns for prefabricated composite structures were investigated to be used in prefabricated multi-story or high-rise buildings. Six column splice connection tests were conducted subjected to combined actions of bending and shear forces, changing with the stiffener numbers and flange thicknesses. A finite element model was built to supplement the results, e. g. the joint stiffness and strength, the bolt tension variation, the contact force between the flanges, the yield mechanics and the failure modes. Based on the results, the joint moment resistance and stiffness would obviously increase after adding the stiffeners. Design recommendations for the connection construction were proposed. Formulas to calculate the moment resistance of the joint were deduced according to the yield of flanges and bolts and validated against test and finite element simulation results.</div></div>","PeriodicalId":48642,"journal":{"name":"Structures","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental study on bolted flanged splice connections for square CFST column\",\"authors\":\"Mei-Ling Chen, Xue-Chun Liu, Xuesen Chen, Yong-Li Tao\",\"doi\":\"10.1016/j.istruc.2024.107644\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Bolted-flange connections for CFST columns for prefabricated composite structures were investigated to be used in prefabricated multi-story or high-rise buildings. Six column splice connection tests were conducted subjected to combined actions of bending and shear forces, changing with the stiffener numbers and flange thicknesses. A finite element model was built to supplement the results, e. g. the joint stiffness and strength, the bolt tension variation, the contact force between the flanges, the yield mechanics and the failure modes. Based on the results, the joint moment resistance and stiffness would obviously increase after adding the stiffeners. Design recommendations for the connection construction were proposed. Formulas to calculate the moment resistance of the joint were deduced according to the yield of flanges and bolts and validated against test and finite element simulation results.</div></div>\",\"PeriodicalId\":48642,\"journal\":{\"name\":\"Structures\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2024-10-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2352012424017971\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Structures","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352012424017971","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

摘要

研究了用于预制多层或高层建筑的预制复合结构 CFST 柱的螺栓法兰连接。在弯曲力和剪切力的共同作用下，进行了六次柱拼接连接测试，测试结果随加劲件数量和翼缘板厚度的变化而变化。建立了一个有限元模型来补充测试结果，如连接刚度和强度、螺栓拉力变化、法兰之间的接触力、屈服力学和失效模式。结果表明，添加加劲件后，连接处的抗弯矩能力和刚度明显增加。提出了连接结构的设计建议。根据法兰和螺栓的屈服推导出了计算接头抗弯强度的公式，并根据试验和有限元模拟结果进行了验证。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Experimental study on bolted flanged splice connections for square CFST column

Bolted-flange connections for CFST columns for prefabricated composite structures were investigated to be used in prefabricated multi-story or high-rise buildings. Six column splice connection tests were conducted subjected to combined actions of bending and shear forces, changing with the stiffener numbers and flange thicknesses. A finite element model was built to supplement the results, e. g. the joint stiffness and strength, the bolt tension variation, the contact force between the flanges, the yield mechanics and the failure modes. Based on the results, the joint moment resistance and stiffness would obviously increase after adding the stiffeners. Design recommendations for the connection construction were proposed. Formulas to calculate the moment resistance of the joint were deduced according to the yield of flanges and bolts and validated against test and finite element simulation results.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.