自保温暗骨架承重墙抗震性能试验研究与分析
|
摘要
从抗震节能一体化出发,研发了自保温暗骨架承重墙及其结构体系。通过水平低周反复荷载试验研究了自保温暗骨架承重墙的抗震性能,揭示了该新型抗震墙体受力机制的转化过程,即抗震失效全过程可分为共同工作、转化过渡和弱框架工作三个阶段。结合试验成果开展理论分析,针对自保温暗骨架承重墙剪切破坏模式,分别建立了基于等效弹性板模型的墙体开裂荷载计算方法和基于修正软化拉压杆模型的墙体抗剪极限承载力计算方法,与实测值相比误差分别是3.2%、3.3%,故构建的理论计算方法精度高、物理力学概念清晰。结果表明:自保温暗骨架承重墙具有多道抗震防线,抗震性能好,加之施工方便快捷、造价低廉,特别适宜在村镇住宅等多层建筑中推广应用。
A self-insulating structural wall with inner skeleton and its structural system were designed for realizing the integration of anti-seismic and energy-saving performance. A horizontal low-cyclic load test was conducted to investigate the wall's seismic performance, and it revealed the transformation process of the wall's failure mechanisms. Accordingly, the failure process was divided into three stages, including common working stage,transition stage and weak frame working stage. This study proposed cracking load and ultimate capacity formulas based on the wall's final failure mode and theoretical analysis of the test results. The two formulas were respectively established on the basis of the elastic equivalent model and the modified softened strut-and-tie model. The relative errors between theoretical analysis and test results were 3.2% and 3.3%, respectively, indicating the theoretical formulas have a clear physical significance and an adequate level of accuracy. Additionally, the experiment results verified the wall's superiorities, including seismic behavior, construction convenience and economic performance.The wall is well-suitable for application in multi-story residential buildings such as villages and towns.
A self-insulating structural wall with inner skeleton and its structural system were designed for realizing the integration of anti-seismic and energy-saving performance. A horizontal low-cyclic load test was conducted to investigate the wall's seismic performance, and it revealed the transformation process of the wall's failure mechanisms. Accordingly, the failure process was divided into three stages, including common working stage,transition stage and weak frame working stage. This study proposed cracking load and ultimate capacity formulas based on the wall's final failure mode and theoretical analysis of the test results. The two formulas were respectively established on the basis of the elastic equivalent model and the modified softened strut-and-tie model. The relative errors between theoretical analysis and test results were 3.2% and 3.3%, respectively, indicating the theoretical formulas have a clear physical significance and an adequate level of accuracy. Additionally, the experiment results verified the wall's superiorities, including seismic behavior, construction convenience and economic performance.The wall is well-suitable for application in multi-story residential buildings such as villages and towns.
引文
[1]姚新强,孙柏涛,王明振,等.我国农村典型砖砌体墙片拟静力试验研究[J].工程力学,2017,34(6):198―209.Yao Xinqiang,Sun Botao,Wang Mingzhen,et al.Study on the pseudo-static tests of typical brick masonry walls in rural China[J].Engineering Mechanics,2017,34(6):198―209.(in Chinese)
[2]谭平,徐凯,刘晗,等.村镇建筑新型简易隔震技术研究[J].工程力学,2017,34(增刊1):233―238.Tan Ping,Xu Kai,Liu Han,et al.Study of new seismic isolation technology for rural buildings[J].Engineering Mechanics,2017,34(Suppl 1):233―238.(in Chinese)
[3]刘福胜,崔兆彦,武义馨,等.一种自保温暗骨架承重墙结构[P].中国,ZL201520227613.9,2015.Liu Fusheng,Cui Zhaoyan,Wu Yixin,et al.A kind of self-insulating structural wall with inner skeleton[P].China,ZL201520227613.9,2015.(in Chinese)
[4]Hou Shaodan,Liu Fusheng,Wang Shaojie,et al.Coupled heat and moisture transfer in hollow concrete block wall filled with compressed straw bricks[J].Energy and Buildings,2017,135:74―84.
[5]周涛,王少杰,刘福胜,等.混凝土夹心秸秆块砌块砌体偏心受压承载力试验研究[J].建筑科学,2017,33(9):65―70.Zhou Tao,Wang Shaojie,Liu Fusheng,et al.Experimental study on the eccentric compressed bearing capacity of hollow concrete block filling with compressed straw bricks[J].Building Science,2017,33(9):65―70.(in Chinese)
[6]孙雷,刘福胜,王少杰,等.短周期村镇砌体建筑振动特性实测与抗震性能分析[J].土木工程学报,2013,46(增刊2):57―62.Sun Lei,Liu Fusheng,Wang Shaojie,et al.Dynamic characteristic test and seismic performance analysis of short-period masonry[J].China Civil Engineering Journal,2013,46(Suppl 2):57―62.(in Chinese)
[7]Wilding B V,Dolatshahi K M,Beyer K.Influence of load history on the force-displacement response of in-plane loaded unreinforced masonry walls[J].Engineering Structures,2017,152:671―682.
[8]Messali F,Metelli G,Plizzari G.Experimental results on the retrofitting of hollow brick masonry walls with reinforced high performance mortar coatings[J].Construction and Building Materials,2017,141:619―630.
[9]蔡勇.砌体在剪-压复合作用下抗震抗剪强度分析[J].建筑结构,2011,41(2):74―77.Cai Yong.Analysis on aseismic shear strength of masonry under shear-compression composite action[J].Building Structure,2011,41(2):74―77.(in Chinese)
[10]Morfidis K,Kostinakis K.The role of masonry infills on the damage response of R/C buildings subjected to seismic sequences[J].Engineering Structures,2017,131:459―476.
[11]Edri I E,Yankelevsky D Z.An analytical model for the out-of-plane response of URM walls to different lateral static loads[J].Engineering Structures,2017,136:194―209.
[12]郭猛,袁泉,常鹏,等.基于水平薄弱层破坏准则的密肋复合墙受剪承载力计算[J].建筑结构学报,2012,33(9):148―153.Guo Meng,Yuan Quan,Chang Peng,et al.Calculation method for shear bearing capacity of multi-grid composite wall based on horizontal weak-layer failure criteria[J].Journal of Building Structures,2012,33(9):148―153.(in Chinese)
[13]Ghaisas K V,Basu D,Brzev S,et al.Strut-and-Tie model for seismic design of confined masonry buildings[J].Construction and Building Materials,2017,147:677―700.
[14]Furtado A,Rodrigues H,Arêde A.Modelling of masonry infill walls participation in the seismic behaviour of RCbuildings using OpenSees[J].International Journal of Advanced Structural Engineering,2015,7(2):117―127.
[15]刘文锋,王来其,高彦强,等.高强钢筋混凝土框架抗震性能试验研究[J].土木工程学报,2014,47(11):64―74.Liu Wenfeng,Wang Laiqi,Gao Yanqiang,et al.Experimental study on seismic behavior of high-strength reinforced concrete frame[J].China Civil Engineering Journal,2014,47(11):64―74.(in Chinese)
[16]黄炜,陈国新,姚谦峰,等.基于统一强度理论的密肋复合墙体开裂荷载计算[J].工程力学,2008,25(7):94―99.Huang Wei,Chen Guoxin,Yao Qianfeng,et al.Calculation on cracking load of multi-ribbed composite wall based on twin shear unified strength theory[J].Engineering Mechanics,2008,25(7):94―99.(in Chinese)
[17]武义馨,刘福胜,赵井辉,等.新型节能承重砌块砌体抗剪强度试验研究[J].混凝土与水泥制品,2016(3):67―70.Wu Yixin,Liu Fusheng,Zhao Jinghui,et al.Experimental study on shear strength of new energy-saving and load-bearing block masonry[J].China Concrete and Cement Products,2016(3):67―70.(in Chinese)
[18]Hwang S J,Fang W H,Lee H J,et al.Analytical model for predicting shear strength of squat walls[J].Journal of Structural Engineering,2001,127(1):43―50.
[19]邢国华,刘伯权,牛荻涛.钢筋混凝土框架中节点受剪承载力计算的修正软化拉压杆模型[J].工程力学,2013,30(8):60―66.Xing Guohua,Liu Boquan,Niu Ditao.Shear strength of reinforced concrete frame joints using modified softened strut-and-tie model[J].Engineering Mechanics,2013,30(8):60―66.(in Chinese)
[20]Hwang S J,Lee H J.Strength prediction for discontinuity regions by softened strut-and-tie model[J].Journal of Structural Engineering,2002,128(12):1519―1526.
[2]谭平,徐凯,刘晗,等.村镇建筑新型简易隔震技术研究[J].工程力学,2017,34(增刊1):233―238.Tan Ping,Xu Kai,Liu Han,et al.Study of new seismic isolation technology for rural buildings[J].Engineering Mechanics,2017,34(Suppl 1):233―238.(in Chinese)
[3]刘福胜,崔兆彦,武义馨,等.一种自保温暗骨架承重墙结构[P].中国,ZL201520227613.9,2015.Liu Fusheng,Cui Zhaoyan,Wu Yixin,et al.A kind of self-insulating structural wall with inner skeleton[P].China,ZL201520227613.9,2015.(in Chinese)
[4]Hou Shaodan,Liu Fusheng,Wang Shaojie,et al.Coupled heat and moisture transfer in hollow concrete block wall filled with compressed straw bricks[J].Energy and Buildings,2017,135:74―84.
[5]周涛,王少杰,刘福胜,等.混凝土夹心秸秆块砌块砌体偏心受压承载力试验研究[J].建筑科学,2017,33(9):65―70.Zhou Tao,Wang Shaojie,Liu Fusheng,et al.Experimental study on the eccentric compressed bearing capacity of hollow concrete block filling with compressed straw bricks[J].Building Science,2017,33(9):65―70.(in Chinese)
[6]孙雷,刘福胜,王少杰,等.短周期村镇砌体建筑振动特性实测与抗震性能分析[J].土木工程学报,2013,46(增刊2):57―62.Sun Lei,Liu Fusheng,Wang Shaojie,et al.Dynamic characteristic test and seismic performance analysis of short-period masonry[J].China Civil Engineering Journal,2013,46(Suppl 2):57―62.(in Chinese)
[7]Wilding B V,Dolatshahi K M,Beyer K.Influence of load history on the force-displacement response of in-plane loaded unreinforced masonry walls[J].Engineering Structures,2017,152:671―682.
[8]Messali F,Metelli G,Plizzari G.Experimental results on the retrofitting of hollow brick masonry walls with reinforced high performance mortar coatings[J].Construction and Building Materials,2017,141:619―630.
[9]蔡勇.砌体在剪-压复合作用下抗震抗剪强度分析[J].建筑结构,2011,41(2):74―77.Cai Yong.Analysis on aseismic shear strength of masonry under shear-compression composite action[J].Building Structure,2011,41(2):74―77.(in Chinese)
[10]Morfidis K,Kostinakis K.The role of masonry infills on the damage response of R/C buildings subjected to seismic sequences[J].Engineering Structures,2017,131:459―476.
[11]Edri I E,Yankelevsky D Z.An analytical model for the out-of-plane response of URM walls to different lateral static loads[J].Engineering Structures,2017,136:194―209.
[12]郭猛,袁泉,常鹏,等.基于水平薄弱层破坏准则的密肋复合墙受剪承载力计算[J].建筑结构学报,2012,33(9):148―153.Guo Meng,Yuan Quan,Chang Peng,et al.Calculation method for shear bearing capacity of multi-grid composite wall based on horizontal weak-layer failure criteria[J].Journal of Building Structures,2012,33(9):148―153.(in Chinese)
[13]Ghaisas K V,Basu D,Brzev S,et al.Strut-and-Tie model for seismic design of confined masonry buildings[J].Construction and Building Materials,2017,147:677―700.
[14]Furtado A,Rodrigues H,Arêde A.Modelling of masonry infill walls participation in the seismic behaviour of RCbuildings using OpenSees[J].International Journal of Advanced Structural Engineering,2015,7(2):117―127.
[15]刘文锋,王来其,高彦强,等.高强钢筋混凝土框架抗震性能试验研究[J].土木工程学报,2014,47(11):64―74.Liu Wenfeng,Wang Laiqi,Gao Yanqiang,et al.Experimental study on seismic behavior of high-strength reinforced concrete frame[J].China Civil Engineering Journal,2014,47(11):64―74.(in Chinese)
[16]黄炜,陈国新,姚谦峰,等.基于统一强度理论的密肋复合墙体开裂荷载计算[J].工程力学,2008,25(7):94―99.Huang Wei,Chen Guoxin,Yao Qianfeng,et al.Calculation on cracking load of multi-ribbed composite wall based on twin shear unified strength theory[J].Engineering Mechanics,2008,25(7):94―99.(in Chinese)
[17]武义馨,刘福胜,赵井辉,等.新型节能承重砌块砌体抗剪强度试验研究[J].混凝土与水泥制品,2016(3):67―70.Wu Yixin,Liu Fusheng,Zhao Jinghui,et al.Experimental study on shear strength of new energy-saving and load-bearing block masonry[J].China Concrete and Cement Products,2016(3):67―70.(in Chinese)
[18]Hwang S J,Fang W H,Lee H J,et al.Analytical model for predicting shear strength of squat walls[J].Journal of Structural Engineering,2001,127(1):43―50.
[19]邢国华,刘伯权,牛荻涛.钢筋混凝土框架中节点受剪承载力计算的修正软化拉压杆模型[J].工程力学,2013,30(8):60―66.Xing Guohua,Liu Boquan,Niu Ditao.Shear strength of reinforced concrete frame joints using modified softened strut-and-tie model[J].Engineering Mechanics,2013,30(8):60―66.(in Chinese)
[20]Hwang S J,Lee H J.Strength prediction for discontinuity regions by softened strut-and-tie model[J].Journal of Structural Engineering,2002,128(12):1519―1526.