部分预制装配型钢混凝土柱抗震性能试验研究
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摘要
为充分发挥型钢混凝土结构受力性能及预制装配结构施工性能方面的优势,提出了部分预制装配型钢混凝土实心柱(PPSRC柱)和空心柱(HPSRC柱),结合2个系列10个柱试件的拟静力试验,对两种柱的抗震性能进行了研究。通过对试件的破坏形态、滞回曲线、骨架曲线、耗能能力及变形能力、承载力及刚度退化的研究,并结合各试件的实测应变结果,对柱截面形式、轴压力、配箍率和现浇混凝土强度对PPSRC柱和HPSRC柱抗震性能的影响进行了分析。研究结果表明:PPSRC柱试件的最终破坏形态分为弯曲破坏与弯剪破坏,HPSRC柱试件均发生弯剪破坏,所提出的高强高性能预制混凝土外壳能够很好地与型钢及现浇混凝土协同工作,主要受力方向型钢与外部混凝土之间未发现明显的黏结裂缝;由于内部混凝土的存在,PPSRC柱相比于HPSRC柱拥有更好的耗能及变形能力;轴压力较低、配箍率较大的试件表现出更好的耗能能力及变形能力。通过对两种柱试件的受弯承载力分析可知,中低轴压比的PPSRC柱与HPSRC柱拥有相近的受弯承载力,在同一结构中HPSRC柱可与PPSRC柱沿竖向混合使用,以有效避免柱变截面处的刚度及承载力突变带来的影响。
With the aim to combine the advantages of steel reinforced concrete( SRC) structures in mechanical behaviors and prefabricated structures in constructional performance,two series of innovative steel reinforced concrete columns,partially precast steel reinforced concrete( PPSRC) column and hollow precast steel reinforced concrete( HPSRC) column,were introduced. In order to investigate the seismic performances of the PPSRC and HPSRC columns,quasi-static tests of ten column specimens were conducted. Through the analyses of hysteretic loops,skeleton curves,cumulative dissipated energy,ductility,strength and stiffness degradation as well as the measured strains results,the effects of section shape,axial compression and stirrup ratio on the cyclic behaviors of the specimens were examined. The results indicate that there are two typical failure modes in PPSRC column specimens,namely the flexural failure and flexural-shear failure,while all HPSRC column specimens fail in flexural-shear mode. The outer precast high-strength high-performance concrete shell can work compatibly with the shape steel and inner-concrete. No obvious bonding crack is observed between the shape steel and the outer concrete shell in the loading direction.Meanwhile,the PPSRC columns exhibit better deformation capacity and energy dissipation capacity than those of HPSRC columns because of the existence of inner concrete. Better cyclic performance can be found in the specimens with low axial compression ratio and high stirrup ratio. The PPSRC and HPSRC columns exhibit similar moment capacity under low and medium axial compression ratio,indicating that these two composite columns with the same sectional dimensions can be spliced along the building height to avoid the influence of sudden change in stiffness and bearing capacity in traditional structural design.
With the aim to combine the advantages of steel reinforced concrete( SRC) structures in mechanical behaviors and prefabricated structures in constructional performance,two series of innovative steel reinforced concrete columns,partially precast steel reinforced concrete( PPSRC) column and hollow precast steel reinforced concrete( HPSRC) column,were introduced. In order to investigate the seismic performances of the PPSRC and HPSRC columns,quasi-static tests of ten column specimens were conducted. Through the analyses of hysteretic loops,skeleton curves,cumulative dissipated energy,ductility,strength and stiffness degradation as well as the measured strains results,the effects of section shape,axial compression and stirrup ratio on the cyclic behaviors of the specimens were examined. The results indicate that there are two typical failure modes in PPSRC column specimens,namely the flexural failure and flexural-shear failure,while all HPSRC column specimens fail in flexural-shear mode. The outer precast high-strength high-performance concrete shell can work compatibly with the shape steel and inner-concrete. No obvious bonding crack is observed between the shape steel and the outer concrete shell in the loading direction.Meanwhile,the PPSRC columns exhibit better deformation capacity and energy dissipation capacity than those of HPSRC columns because of the existence of inner concrete. Better cyclic performance can be found in the specimens with low axial compression ratio and high stirrup ratio. The PPSRC and HPSRC columns exhibit similar moment capacity under low and medium axial compression ratio,indicating that these two composite columns with the same sectional dimensions can be spliced along the building height to avoid the influence of sudden change in stiffness and bearing capacity in traditional structural design.
引文
[1]薛建阳．组合结构设计原理[M]．北京:中国建筑工业出版社，2010:99-101.(XUE Jianyang. Design principles of composite structures[M]. Beijing:China Architecture&Building Press,2010:99-101.(in Chinese))
[2] JOHNSON R P. Composite structures of steel and concrete:beams, slabs, columns, and frames for buildings[M]. Oxford:Blackwell,2008:1-14.
[3] HAJJAR J F. Composite steel and concrete structural systems for seismic engineering[J]. Steel Construction,2008,58(5):703-723.
[4] KURAMA Y C,SRITHARAN S,FLEISCHMAN R B,et al. Seismic-resistant precast concrete structures:state of the art[J]. Journal of Structural Engineering,2018,144(4):1-18.
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[6]程万鹏，宋玉普，张秀娟．预制装配式部分钢骨混凝土框架梁柱节点承载能力的试验研究[J]．大连交通大学学报，2014,35(4):52-55.(CHENG Wanpeng,SONG Yupu,ZHANG Xiujuan. Experiment study of bearing capacity for beam and column joints of precast and discontinuous steel reinforced concrete[J]. Journal of Dalian Jiaotong University,2014,35(4):52-55.(in Chinese))
[7]程万鹏，宋玉普，王军．预制装配式部分钢骨混凝土框架梁柱中节点抗震性能试验研究[J]．大连理工大学学报，2015, 55(2):171-178.(CHENG Wanpeng, SONG Yupu, WANG Jun. Experimental study of seismic performance for interior beam-column joints of precast and discontinuous steel reinforced concrete[J]. Journal of Dalian University of Technology,2015,55(2):171-178.(in Chinese))
[8]张雪松，李忠献．低周反复循环荷载作用下装配整体式钢骨混凝土框架节点抗震性能试验研究[J]．东南大学学报(自然科学版)，2005,35(增刊1):1-4.(ZHANG Xuesong,LI Zhongxian. Seismic behavior of joints of prefabricated steel reinforced concrete integral frame under low cyclic and reciprocal loading[J]. Journal of Southeast University(Natural Science Edition),2005,35(Supp1. 1):1-4.(in Chinese))
[9]社团法人预制建筑协会．预制建筑总论[M]．北京:中国建筑工业出版社，2012:25-31.(Association of Prefabricated Building. Introduction of the prefabricated structures[M]. Beijing:China Architecture&Building Press,2012:99-101.(in Chinese))
[10]杨勇，薛亦聪，于云龙，等．部分预制装配型钢混凝土梁受弯性能试验研究[J]．建筑结构学报，2017,38(9):46-53.(YANG Yong, XUE Yicong, YU Yunlong,et al. Experimental study of partially precast steel reinforced concrete beams under positive bending[J]. Journal of Building Structures,2017,38(9):46-53.(in Chinese))
[11]杨勇，于云龙，杨洋，等．部分预制装配型钢混凝土梁受剪性能试验研究[J]．建筑结构学报，2017,38(6):53-60.(YANG Yong,YU Yunlong,YANG Yang,et al. Experimental study on shear performance of partially precast steel reinforced concrete beams[J].Journal of Building Structures,2017,38(6):53-60.(in Chinese))
[12]于云龙．部分预制装配型钢混凝土梁基本性能及设计方法研究[D]．西安:西安建筑科技大学，2018:23-128.(YU Yunlong. Study on mechanical performance and design method on partially precast steel reinforced concrete beams[D]. Xi’an:Xi’an University of Architecture and Technology, 2018:23-128.(in Chinese))
[13]郑文忠，吕雪源．活性粉末混凝土研究进展[J]．建筑结构学报，2015,36(10):44-58.(ZHENG Wenzhong,LXueyuan. Literature review of reactive powder concrete[J]. Journal of Building Structures,2015,36(10):44-58.(in Chinese))
[14]混凝土结构设计规范:GB 20010—2010[S]．北京:中国建筑工业出版社，2010.(Code for design of concrete structures:GB 50010—2010[S]. Beijing:China Architecture&Building Press,2010.(in Chinese))
[15]普通混凝土力学性能试验方法:GB/T 50081—2002[S]．北京:中国建筑工业出版社，2003.(Standard for test method of mechanical properties on ordinary concrete:GB/T 50081—2002[S]. Beijing:China Architecture&Building Press,2003.(in Chinese))
[16]朱伟庆，贾金青．型钢超高强混凝土柱抗震性能试验研究[J]．建筑结构学报，2015,36(4):57-67.(ZHU Weiqing,JIA Jinqing. Experimental study on seismic behavior of steel reinforced high strength concrete columns[J]. Journal of Building Structures,2015,36(4):57-67.(in Chinese))
[17]李俊华，王新堂，薛建阳，等．低周反复荷载下型钢高强混凝土柱受力性能试验研究[J]．土木工程学报，2007,40(7):11-18.(LI Junhua, WANG Xintang,XUE Jianyang,et al. Experimental study on the performance of steel reinforced high-strength concrete columns under low cyclic reversed loading[J]. China Civil Engineering Journal,2007,40(7):11-18.(in Chinese))
[18]组合结构设计规范:JGJ 138—2016[S]．北京:中国建筑工业出版社，2016.(Code for design of composite structures:JGJ 138—2016[S]. Beijing:China Architecture&Building Press,2016.(in Chinese))
[19] European Committee for Standardization. Eurocode 4:design of composite steel and concrete structures:BS EN 1994-1-1:2004[S]. Brussels:European Committee for Standardization,2004.
[20]郑文忠，李莉，卢姗姗．钢筋活性粉末混凝土简支梁正截面受力性能试验研究[J]．建筑结构学报，2011,32(6):125-134.(ZHENG Wenzhong,LI Li,LU Shanshan. Experimental research on mechanical performance of normal section of reinforced reactive powder concrete beam[J]. Journal of Building Structures,2011,32(6):125-134.(in Chinese))
[2] JOHNSON R P. Composite structures of steel and concrete:beams, slabs, columns, and frames for buildings[M]. Oxford:Blackwell,2008:1-14.
[3] HAJJAR J F. Composite steel and concrete structural systems for seismic engineering[J]. Steel Construction,2008,58(5):703-723.
[4] KURAMA Y C,SRITHARAN S,FLEISCHMAN R B,et al. Seismic-resistant precast concrete structures:state of the art[J]. Journal of Structural Engineering,2018,144(4):1-18.
[5]王俊，赵基达，胡宗羽．我国建筑工业化发展现状与思考[J]．土木工程学报，2016,49(5):1-8.(WANG Jun,ZHAO Jida,HU Zongyu. Review and thinking on development of building industrialization in China[J]. China Civil Engineering Journal,2016,49(5):1-8.(in Chinese))
[6]程万鹏，宋玉普，张秀娟．预制装配式部分钢骨混凝土框架梁柱节点承载能力的试验研究[J]．大连交通大学学报，2014,35(4):52-55.(CHENG Wanpeng,SONG Yupu,ZHANG Xiujuan. Experiment study of bearing capacity for beam and column joints of precast and discontinuous steel reinforced concrete[J]. Journal of Dalian Jiaotong University,2014,35(4):52-55.(in Chinese))
[7]程万鹏，宋玉普，王军．预制装配式部分钢骨混凝土框架梁柱中节点抗震性能试验研究[J]．大连理工大学学报，2015, 55(2):171-178.(CHENG Wanpeng, SONG Yupu, WANG Jun. Experimental study of seismic performance for interior beam-column joints of precast and discontinuous steel reinforced concrete[J]. Journal of Dalian University of Technology,2015,55(2):171-178.(in Chinese))
[8]张雪松，李忠献．低周反复循环荷载作用下装配整体式钢骨混凝土框架节点抗震性能试验研究[J]．东南大学学报(自然科学版)，2005,35(增刊1):1-4.(ZHANG Xuesong,LI Zhongxian. Seismic behavior of joints of prefabricated steel reinforced concrete integral frame under low cyclic and reciprocal loading[J]. Journal of Southeast University(Natural Science Edition),2005,35(Supp1. 1):1-4.(in Chinese))
[9]社团法人预制建筑协会．预制建筑总论[M]．北京:中国建筑工业出版社，2012:25-31.(Association of Prefabricated Building. Introduction of the prefabricated structures[M]. Beijing:China Architecture&Building Press,2012:99-101.(in Chinese))
[10]杨勇，薛亦聪，于云龙，等．部分预制装配型钢混凝土梁受弯性能试验研究[J]．建筑结构学报，2017,38(9):46-53.(YANG Yong, XUE Yicong, YU Yunlong,et al. Experimental study of partially precast steel reinforced concrete beams under positive bending[J]. Journal of Building Structures,2017,38(9):46-53.(in Chinese))
[11]杨勇，于云龙，杨洋，等．部分预制装配型钢混凝土梁受剪性能试验研究[J]．建筑结构学报，2017,38(6):53-60.(YANG Yong,YU Yunlong,YANG Yang,et al. Experimental study on shear performance of partially precast steel reinforced concrete beams[J].Journal of Building Structures,2017,38(6):53-60.(in Chinese))
[12]于云龙．部分预制装配型钢混凝土梁基本性能及设计方法研究[D]．西安:西安建筑科技大学，2018:23-128.(YU Yunlong. Study on mechanical performance and design method on partially precast steel reinforced concrete beams[D]. Xi’an:Xi’an University of Architecture and Technology, 2018:23-128.(in Chinese))
[13]郑文忠，吕雪源．活性粉末混凝土研究进展[J]．建筑结构学报，2015,36(10):44-58.(ZHENG Wenzhong,LXueyuan. Literature review of reactive powder concrete[J]. Journal of Building Structures,2015,36(10):44-58.(in Chinese))
[14]混凝土结构设计规范:GB 20010—2010[S]．北京:中国建筑工业出版社，2010.(Code for design of concrete structures:GB 50010—2010[S]. Beijing:China Architecture&Building Press,2010.(in Chinese))
[15]普通混凝土力学性能试验方法:GB/T 50081—2002[S]．北京:中国建筑工业出版社，2003.(Standard for test method of mechanical properties on ordinary concrete:GB/T 50081—2002[S]. Beijing:China Architecture&Building Press,2003.(in Chinese))
[16]朱伟庆，贾金青．型钢超高强混凝土柱抗震性能试验研究[J]．建筑结构学报，2015,36(4):57-67.(ZHU Weiqing,JIA Jinqing. Experimental study on seismic behavior of steel reinforced high strength concrete columns[J]. Journal of Building Structures,2015,36(4):57-67.(in Chinese))
[17]李俊华，王新堂，薛建阳，等．低周反复荷载下型钢高强混凝土柱受力性能试验研究[J]．土木工程学报，2007,40(7):11-18.(LI Junhua, WANG Xintang,XUE Jianyang,et al. Experimental study on the performance of steel reinforced high-strength concrete columns under low cyclic reversed loading[J]. China Civil Engineering Journal,2007,40(7):11-18.(in Chinese))
[18]组合结构设计规范:JGJ 138—2016[S]．北京:中国建筑工业出版社，2016.(Code for design of composite structures:JGJ 138—2016[S]. Beijing:China Architecture&Building Press,2016.(in Chinese))
[19] European Committee for Standardization. Eurocode 4:design of composite steel and concrete structures:BS EN 1994-1-1:2004[S]. Brussels:European Committee for Standardization,2004.
[20]郑文忠，李莉，卢姗姗．钢筋活性粉末混凝土简支梁正截面受力性能试验研究[J]．建筑结构学报，2011,32(6):125-134.(ZHENG Wenzhong,LI Li,LU Shanshan. Experimental research on mechanical performance of normal section of reinforced reactive powder concrete beam[J]. Journal of Building Structures,2011,32(6):125-134.(in Chinese))