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(1 天津市土木建筑結(jié)構(gòu)防護與加固重點實驗室, 天津 300384;2 天津城建大學(xué)土木工程學(xué)院, 天津 300384)
摘要: 為研究墻體構(gòu)造措施和墻-框連接方式對砌體填充墻框架結(jié)構(gòu)抗震性能的影響,設(shè)計制作了 1 榀空框架、2榀部分柔性連接和 2 榀全部柔性連接填充墻框架試件,然后在平面外單調(diào)靜力加載試驗的基礎(chǔ)上進行了平面內(nèi)水平低周往復(fù)荷載試驗,最后結(jié)合試驗結(jié)果對各試件的抗震性能進行綜合分析和對比. 試驗和分析結(jié)果表明:墻-柱剛性連接的部分柔性連接方案對結(jié)構(gòu)平面內(nèi)及平面外水平承載力和初始剛度有利,但從變形能力和延性角度來看,墻-柱柔性連接更有利;全部柔性連接條件下,通過增強填充墻構(gòu)造可以實現(xiàn)填充墻框架結(jié)構(gòu)平面內(nèi)及平面外綜合抗震性能的改善,其中“井字梁”形式的填充墻構(gòu)造方案綜合抗震性能最優(yōu),且有利于降低平面外損傷對平面內(nèi)抗震性能的影響.
關(guān)鍵詞: 砌體填充墻框架結(jié)構(gòu); 柔性連接; 平面內(nèi)抗震性能; 平面外抗震性能; 單調(diào)靜力加載試驗; 低周往復(fù)荷載試驗
中圖分類號:TU375. 4 文獻標志碼:A 文章編號:1002-848X(2023)11-0103-07
DOI:10. 19701 / j. jzjg. 20201715
Experimental study on in-plane seismic behavior of flexible connection infilled frame structure with out-of-plane damage
ZHOU Xiaojie1,2, CHEN Kang1,2, CHENG Changyun1,2, CHEN Peiqi1,2, DU Jinpeng1,2
(1 Tianjin Key Laboratory of Civil Buildings Protection and Reinforcement, Tianjin 300384, China;2 School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China)
Abstract: In order to study the influence of wall structural configuration and wall-frame connection methods on seismicperformance of masonry infilled frame structure, 1 pure frame, 2 partiall flexible connection and 2 fully flexible connectionfilled wall frame specimens were designed and manufactured. Then in-plane horizontal low cyclic load tests were carried outon the basis of out-of-plane monotonic static load test. Finally, the seismic performance of specimens was analyzed andcompared according to the test results. The results of test and analysis show that partial flexible connection scheme withwall-column rigid connection is beneficial to the in-plane and out-of-plane overall horizontal bearing capacity and initialstiffness of the structure, but from the perspective of deformation capacity and ductility, the wall-column flexible connectionis more beneficial. Under fully flexible connection conditions, the in-plane and out-of-plane overall seismic performance offrame can be improved by reasonable structural configuration of infill wall. The wall in the form of " grid-beam" has the bestoverall seismic performance, and is conducive to reduce the influence of out-of-plane damage on in-plane seismicperformance.
Keywords:masonry infilled frame structure; flexible connection; in-plane seismic performance; out-of-plane seismicperformance; monotonic static load test; low cyclic load test
∗國家自然科學(xué)基金項目(51678389).
第一作者:周曉潔,博士,教授,主要從事工程結(jié)構(gòu)抗震研究,Email: zhouxj88888@ 126. com.
[引用本文] 周曉潔,陳康,程昌惲,等. 經(jīng)歷平面外損傷的柔性連接填充墻框架結(jié)構(gòu)平面內(nèi)抗震性能試驗研究[J]. 建筑結(jié)構(gòu),2023,53(11):103-109. ZHOU Xiaojie,CHEN Kang,CHENG Changyun,et al. Experimental study on inplane seismic behavior of flexible connection infilled frame structure with out-of-plane damage[ J]. Building Structure,2023,53(11):103-109.
