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(河南城建學(xué)院土木與交通工程學(xué)院, 平頂山 467036)
摘要: 裝配式建筑在國家政策的大力支持下逐漸興起,鋼板混凝土組合剪力墻結(jié)構(gòu)作為一種高效的抗側(cè)力體系,其與裝配式建筑的結(jié)合成為土木工程領(lǐng)域當(dāng)前的研究熱點. 基于鋼結(jié)構(gòu)節(jié)點連接的可靠性與便捷性特點,提出了一種預(yù)埋 T 型板連接裝配式組合剪力墻,建立了同尺寸的現(xiàn)澆組合剪力墻和裝配式組合剪力墻的精細(xì)化有限元分析模型,并將二者分析結(jié)果進(jìn)行對比,驗證了該連接方式的可行性與可靠性;在此基礎(chǔ)上,通過一系列試驗對二者的滯回曲線、骨架曲線、延性系數(shù)和抗側(cè)剛度等進(jìn)行對比分析和抗剪承載力理論驗算,結(jié)果表明預(yù)埋 T 型板連接裝配式組合剪力墻的耗能能力、承載能力、延性性能和抗側(cè)性能均有所降低,基本滿足抗震性能要求. 通過對比分析發(fā)現(xiàn),軸壓比和高寬比對 T 型板連接裝配式墻體承載性能有一定影響,設(shè)計時應(yīng)給予足夠的重視.
關(guān)鍵詞: 裝配式組合剪力墻; T 型板連接; 抗震性能; 軸壓比; 高寬比
中圖分類號:TU398. 2 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2023)02-0092-08
DOI:10. 19701 / j. jzjg. LS210357
Study on seismic properties of prefabricated composite shear walls with T-plate connections
WANG Yi, YOU Peibo, QU Songzhao, ZHANG Chenyu, ZHAO Jin
(School of Civil and Transportation Engineering, Henan University of Urban Construction,Pingdingshan 467036, China)
Abstract: With the strong support of national policies, prefabricated buildings are emerging gradually. As an efficientlateral force resistance system, the steel-concrete composite shear wall (SCCSW) has become a research hotspot in the fieldof prefabricated buildings in civil engineering. Based on the reliability and convenience characteristics of steel structurejoint connection, a prefabricated composite shear walls with T-plate bolted connections was proposed. The refined finiteelement analysis model of cast-in-place composite shear wall and the prefabricated composite shear wall with the same sizewere established, and the analysis results of the two were compared to verify the feasibility and reliability of the connectionmethod. On this basis, a series of tests were carried out around the parameters of hysteretic curve, skeleton curve, ductilitycoefficient and lateral stiffness between the above two models, and the shear bearing capacity was compared by simulationand theoretical method. The result shows that the proposed prefabricated composite shear walls with T-plate boltedconnections could meet the seismic performance requirements although there were a little declines in energy dissipationcapacity, bearing capacity, ductility and lateral resistance comparing with cast-in-place model. It is found that the axialpressure ratio and aspect ratio have a certain impact on the bearing performance of the prefabricated composite shear wallswith T-plate bolted connections and suggested that enough attention should be paid during design process.
Keywords:prefabricated composite shear wall; T-plate connection; seismic properties; axial pressure ratio; aspect ratio
∗國家自然科學(xué)基金青年科學(xué)基金項目( 52108207),河南省高等學(xué)校重點科研項目( 22A560001),河南省科技攻關(guān)項目(212102310933).
第一作者:王儀,博士,副教授,碩士生導(dǎo)師,主要從事裝配式新型結(jié)構(gòu)及其耐久性研究,Email:wangy@ hncj. edu. cn.
[引用本文] 王儀,尤培波,屈訟昭,等. T 型板連接裝配式組合剪力墻抗震性能研究[J]. 建筑結(jié)構(gòu),2023,53(2):92-99. WANG Yi,YOU Peibo,QU Songzhao,et al. Study on seismic properties of prefabricated composite shear walls withT-plate connections[J]. Building Structure,2023,53(2):92-99.
