Ⅰ型缝CCA板填充墙钢框架试验和有限元分析
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摘要
为减缓侧向荷载作用下CCA板填充墙的开裂,在墙板中间设了Ⅰ型竖向缝,并对一榀足尺的单层单跨带Ⅰ型竖缝的CCA板填充墙钢框架进行低周反复荷载试验,还设计了一榀足尺纯钢框架、一榀足尺的常规带CCA板填充墙钢框架与之对比,主要研究带Ⅰ型竖缝CCA板填充墙的开裂过程及破坏规律,以及竖缝对试件的滞回性能、变形能力、刚度退化和耗能能力的影响,并将试验结果与有限元模拟结果进行比较。研究结果表明:与常规CCA板填充墙钢框架相比,带Ⅰ型竖缝能有效延缓CCA板填充墙在弹塑性阶段的开裂,使墙板应力集中得到缓解。研究结果可为Ⅰ型缝CCA板填充墙钢框架的应用推广提供试验与理论依据。
In order to mitigate the cracking of CCA sheets under lateral load,one vertical slit is set in the middle of the wallboard,namely I-shaped CCA sheets.A single-story and single-span of full-scale I-shaped CCA sheets in-filled steel frame is tested under low cyclic loading.Also,one bare steel frame structure and one steel frame filled with CCA sheets in conventional constructional measures are designed and tested,to compare with I-shaped CCA sheets in-filled steel frame.Cracking process and failure rule of I-shaped CCA sheets are studied,as well as the effect of the vertical slit on the load-displacement hysteretic curves,the deformation capacity and stiffness degradation,energy dissipation of the specimen.The test data is also compared with the finite element simulation results.Experimental studies show that the vertical slit with constructional measures can delay the cracking of CCA sheets effectively,and reduce the stress concentration at elastic-plastic stage.Research results will provide a reference for the development of I-shaped CCA sheets in-filled steel frame structures.
In order to mitigate the cracking of CCA sheets under lateral load,one vertical slit is set in the middle of the wallboard,namely I-shaped CCA sheets.A single-story and single-span of full-scale I-shaped CCA sheets in-filled steel frame is tested under low cyclic loading.Also,one bare steel frame structure and one steel frame filled with CCA sheets in conventional constructional measures are designed and tested,to compare with I-shaped CCA sheets in-filled steel frame.Cracking process and failure rule of I-shaped CCA sheets are studied,as well as the effect of the vertical slit on the load-displacement hysteretic curves,the deformation capacity and stiffness degradation,energy dissipation of the specimen.The test data is also compared with the finite element simulation results.Experimental studies show that the vertical slit with constructional measures can delay the cracking of CCA sheets effectively,and reduce the stress concentration at elastic-plastic stage.Research results will provide a reference for the development of I-shaped CCA sheets in-filled steel frame structures.
引文
[1]孙飞飞,戴成华,李国强.大高宽比开缝组合钢板墙低周反复荷载试验研究[J].建筑结构学报,2009,30(5):72-81.SUN Feifei,DAI Chenghua,LI Guoqiang.Cyclic test on large flakiness ratio composite steel plate walls with slits[J].Journal of Building Structures,2009,30(5):72-81.(in Chinese)
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[8]赵晓艳,田稳苓,周明杰,等.EPS轻集料混凝土配合比及性能试验研究[J].混凝土,2009(2):59-62.DOI:10.3969/j.issn.1002-3550.2009.02.019.ZHAO Xiaoyan,TIAN Wenling,ZHOU Mingjie,et al.Experimental study on mixture ratio and performance of EPS lightweight concrete[J].Concrete,2009(2):59-62.DOI:10.3969/j.issn.1002-3550.2009.02.019.(in Chinese)
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[12] MOHAMMADI M,NIKFAR F.Strength and stiffness of masonry-inlled frames with central openings based on experimental results[J].Journal of Structural Engineering,2013,139(6):974-984.DOI:10.1061/(ASCE)ST.1943-541X.0000717.
[13] KASPARIK T,TAIT M J.Seismic performance assessment of partially grouted,nominally reinforced concrete-masonry structural walls using shake table testing[J].Journal of Performance of Constructed Facilities,2014,28(2):216-227.DOI:10.1061/(ASCE)CF.1943-5509.0000416.
[14]中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社,2010.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Code for Seismic Design of Buildings:GB 50011—2010[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
[15]中华人民共和国住房和城乡建设部.钢板剪力墙技术规程:JGJ/T 380—2015[S].北京:中国建筑工业出版社,2015.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Technical Specification for Steel Plate Shear Walls:JGJ/T 380—2015[S].Beijing:China Architecture&Building Press,2015.(in Chinese)
[16]中华人民共和国住房和城乡建设部.建筑抗震试验规程:JGJ/T 101—2015[S].北京:中国建筑工业出版社,2015.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Specification for Seismic Test of Buildings:JGJ/T 101—2015[S].Beijing:China Architecture&Building Press,2015.(in Chinese)
[2]赵伟,童根树,杨强跃.钢框架内填预制带竖缝钢筋混凝土剪力墙抗震性能试验研究[J].建筑结构学报,2012,33(7):140-146.DOI:10.14006/j.jzjgxb.2012.07.017.ZHAO Wei,TONG Genshu,YANG Qiangyue.Experimental study on seismic behavior of steel frame with prefabricated reinforced concrete infill slit shear walls[J].Journal of Building Structures,2012,33(7):140-146.DOI:10.14006/j.jzjgxb.2012.07.017.(in Chinese)
[3]赵作周,肖明,钱稼茹,等.开缝钢板墙抗震性能的试验研究[J].建筑结构,2007,37(12):105-109.DOI:10.19701/j.jzjg.2007.12.031.ZHAO Zuozhou, XIAOMing, QIANJiaru,etal.Experimental study on seismic behavior of steel plate shear walls with vertical slits[J].Building Structures,2007,37(12):105-109.DOI:10.19701/j.jzjg.2007.12.031.(in Chinese)
[4] HITAKA T,MATSUI C.Experimental study on steel shear wall with slits[J].Journal of Structural Engineering,2003,129(5):586-595.DOI:10.1061/(ASCE)0733-9445(2003)129:5(586).
[5] HE L S,TOGO T,HAYASHI K,et al.Cyclic behavior of multirow slit shear walls made from low-yield-point steel[J].Journal of Structural Engineering,2016,142(11):04016094.DOI:10.1061/(ASCE)ST.1943-541X.0001569.
[6]李元齐,洪驰,秦雅菲.蒸压纤维水泥板覆面轻钢龙骨式复合墙体抗剪性能试验研究[J].建筑结构学报,2015,36(9):151-157.DOI:10.14006/j.jzjgxb.2015.09.019.LI Yuanqi,HONG Chi,QIN Yafei.Experimental study on shear performance of CCA-sheathed light-gauge steel framing walls[J].Journal of Building Structures,2015,36(9):151-157.DOI:10.14006/j.jzjgxb.2015.09.019.(in Chinese)
[7]中华人民共和国国家质量监督检验检疫总局.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2010[S].北京:中国标准出版社,2010.General Administration of Quality Supervision,Inspection and Quarantine of the People’s Republic of China.Metallic Materials—Tensile Testing—Part 1:Method of Test at Room Temperature:GB/T 228.1—2010[S].Beijing:Standards Press of China,2010.(in Chinese)
[8]赵晓艳,田稳苓,周明杰,等.EPS轻集料混凝土配合比及性能试验研究[J].混凝土,2009(2):59-62.DOI:10.3969/j.issn.1002-3550.2009.02.019.ZHAO Xiaoyan,TIAN Wenling,ZHOU Mingjie,et al.Experimental study on mixture ratio and performance of EPS lightweight concrete[J].Concrete,2009(2):59-62.DOI:10.3969/j.issn.1002-3550.2009.02.019.(in Chinese)
[9] MOGHADDAM H A.Lateral load behavior of masonry inlled steel frames with repair and retrot[J].Journal of Structural Engineering,2004,130(1):56-63.DOI:10.1061/(ASCE)0733-9445(2004)130:1(56).
[10] ATIK M,BADAWI M M,SHAHROUR I,et al.Optimum level of shear wall curtailment in wall-frame buildings:the continuum model revisited[J].Journal of Structural Engineering,2013,140(1):06013005.DOI:10.1061/(ASCE)ST.1943-541x.0000901.
[11] SMITH B S,GIRGIS A.Simple analogous frames for shear wall analysis[J].Journal of Structural Engineering,1984,110(11):2655-2666.
[12] MOHAMMADI M,NIKFAR F.Strength and stiffness of masonry-inlled frames with central openings based on experimental results[J].Journal of Structural Engineering,2013,139(6):974-984.DOI:10.1061/(ASCE)ST.1943-541X.0000717.
[13] KASPARIK T,TAIT M J.Seismic performance assessment of partially grouted,nominally reinforced concrete-masonry structural walls using shake table testing[J].Journal of Performance of Constructed Facilities,2014,28(2):216-227.DOI:10.1061/(ASCE)CF.1943-5509.0000416.
[14]中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB50011—2010[S].北京:中国建筑工业出版社,2010.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Code for Seismic Design of Buildings:GB 50011—2010[S].Beijing:China Architecture&Building Press,2010.(in Chinese)
[15]中华人民共和国住房和城乡建设部.钢板剪力墙技术规程:JGJ/T 380—2015[S].北京:中国建筑工业出版社,2015.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Technical Specification for Steel Plate Shear Walls:JGJ/T 380—2015[S].Beijing:China Architecture&Building Press,2015.(in Chinese)
[16]中华人民共和国住房和城乡建设部.建筑抗震试验规程:JGJ/T 101—2015[S].北京:中国建筑工业出版社,2015.Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Specification for Seismic Test of Buildings:JGJ/T 101—2015[S].Beijing:China Architecture&Building Press,2015.(in Chinese)