文献类型：期刊文献

英文题名：Theoretical and experimental study on steel open-web sandwich floor with flanged cruciform section shear key

作者：Shen, Ruilin Xiao, Jianchun Ma, Kejian Mao, Jiayi Li, Guiping Zeng, Weiyi Wang, Qin

第一作者：Shen, Ruilin

通信作者：Xiao, JC[1];Xiao, JC[2]

机构：[1]Guizhou Univ, Space Struct Res Ctr, Guiyang, Peoples R China;[2]Key Lab Struct Engn Guizhou Prov, Guiyang, Peoples R China;[3]Guiyang City Peoples Air Def Off, Guiyang, Peoples R China;[4]Guizhou Inst Technol, Sch Civil Engn, Guiyang, Peoples R China

第一机构：Guizhou Univ, Space Struct Res Ctr, Guiyang, Peoples R China

通信机构：corresponding author), Guizhou Univ, Space Struct Res Ctr, Guiyang, Peoples R China;corresponding author), Key Lab Struct Engn Guizhou Prov, Guiyang, Peoples R China.

年份：2020

卷号：17

期号：3

外文期刊名：LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES

收录：;EI(收录号：20202208715763);Scopus(收录号：2-s2.0-85085258123);WOS:【SCI-EXPANDED(收录号:WOS:000534607200006)】；

基金：This work is supported by the Guizhou Natural Science Foundation: QKHJC [2017]1036; Guizhou Natural Science Foundation: QRF 2017-01; Guizhou Province First-class Discipline Construction Project: QYNYL [2017]0013.

语种：英文

外文关键词：Flanged cruciform section shear key; steel open-web sandwich floor; static test; intersection beam analogy method; finite element analysis

摘要：Steel open-web sandwich floors (SOSFs) have been applied in several pioneering industrial and public buildings. The traditional square tube shear key (STSK) is changed into a flanged cruciform section shear key (FCSK) to further improve the bearing capacity of SOSFs. A half-scale test model is designed. A graded static loading test is performed to measure deflection and strain. The calculation formula of the intersection beam analogy method (IBAM) considering the influence of shear stiffness is proposed. A finite element (FE) analysis was also performed. The results of the test, IBAM and FE method are compared. The maximum deviation of the deflection obtained by them is less than 5%, and the maximum strain error is less than 7%. These figures prove that all three methods have high precision in the elastic range. Compared SOSFs use a different shear keys with the same grid size and chords, the maximum Mises stress is reduced by 55.9% and the maximum displacement is reduced by 36.1%. The new shear key imparts the structure with improved bearing capacity and safety margin.