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(1 西安建筑科技大學(xué)土木工程學(xué)院, 西安 710055; 2 北京工業(yè)大學(xué)城市建設(shè)學(xué)部, 北京 100124)

摘要: 為研究型鋼再生混凝土框架-再生混凝土砌塊填充墻框架的抗震性能,通過(guò)有限元軟件 ABAQUS 建立了型鋼再生混凝土框架-再生混凝土砌塊填充墻結(jié)構(gòu)的有限元模型,并進(jìn)行了分析,通過(guò)與已有試驗(yàn)結(jié)果進(jìn)行對(duì)比,驗(yàn)證有限元建模方法和本構(gòu)關(guān)系的正確性,在此基礎(chǔ)上對(duì)框架進(jìn)行了破壞模式分析,并進(jìn)一步分析了填充墻對(duì)框架抗震性能的影響. 研究表明,填充墻的應(yīng)力分布主要是沿斜對(duì)角的受拉應(yīng)力,在填充墻的角部區(qū)域應(yīng)力較大,中部區(qū)域砌塊發(fā)生滑移錯(cuò)動(dòng). 在試件的加載過(guò)程中,加載初期,填充墻對(duì)框架的承載力影響較大,在加載后期,由于填充墻發(fā)生破壞,填充墻對(duì)框架承載力的貢獻(xiàn)減弱,但填充墻的存在一定程度上約束了框架的整體變形,延緩了框架柱柱腳的塑性變形.

關(guān)鍵詞: 型鋼再生混凝土; 再生混凝土砌塊; 框架-填充墻; 抗震性能; 有限元分析

中圖分類(lèi)號(hào):TU398 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)09-0102-06

DOI:10. 19701 / j. jzjg. 20222703

Seismic performance analysis of steel reinforced recycled concrete frame infilled with recycled concrete blocks

XUE Jianyang1, YANG Yong1, CAO Wanlin2, GAO Liang1, LUO Zheng1

(1 College of Civil Engineering, Xi’ an University of Architecture and Technology, Xi’ an 710055, China;2 Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology,Beijing 100124, China)

Abstract: To study the seismic performance of steel reinforced recycled concrete frame infilled with recycled concreteblocks, the finite element model of steel reinforced recycled concrete frame infilled with recycled concrete blocks wereestablished and analyzed by finite element software ABAQUS, and the correctness of the finite element modeling methodand intrinsic structure relationship was verified by comparing with the existing test results, and on this basis, the failuremode analysis of the frame was carried out, and the study of the influence of the infill wall on the seismic performance of theframe was further analyzed. The study shows that the stress distribution in the infill wall is mainly tensile stress along thediagonal, with higher stress in the corner region of the infill wall and slip misalignment of the blocks in the central region.In the loading process of the specimen, the infill wall has a greater influence on the frame bearing capacity at the initialstage of loading, and at the later stage of loading, the contribution of the infill wall to the frame bearing capacity isweakened due to the damage of the infill wall, but the existence of the infill wall restrains the overall deformation of theframe to a certain extent and delays the plastic deformation of the frame column footings.

Keywords:steel reinforced recycled concrete; recycled concrete block; frame-infill wall; seismic performance; finiteelement analysis

∗國(guó)家自然科學(xué)基金(51178384).

第一作者:薛建陽(yáng),博士,教授,主要從事鋼與混凝土組合結(jié)構(gòu)及再生混凝土結(jié)構(gòu)抗震研究,Email:jianyang_xue@ 163. com.

[引用本文] 薛建陽(yáng),楊永,曹萬(wàn)林,等. 型鋼再生混凝土框架-再生混凝土砌塊填充墻結(jié)構(gòu)抗震性能分析[ J]. 建筑結(jié)構(gòu),2023,53 ( 9):102-107. XUE Jianyang,YANG Yong,CAO Wanlin, et al. Seismic performance analysis of steelreinforced recycled concrete frame infilled with recycled concrete blocks[J]. Building Structure,2023,53(9):102-107.