H型钢弹塑性挡块关键力学参数计算方法
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摘要
混凝土挡块震害是桥梁震害的主要形式之一,型钢挡块具有塑性耗能和方便修复的特点。为便于工程设计计算,针对新型H型钢弹塑性挡块的力学性能,从H型钢截面的截面应力入手,利用应力弯矩关系,采用弯矩曲率分析方法,建立了H型钢弹塑性挡块弯矩-曲率和力-位移的计算公式,进而建立了H型钢挡块屈服前刚度、屈服荷载、屈服位移和屈服后刚度等关键力学参数的计算公式,并推导了H型钢挡块简化双线性滞回曲线。同时将上述建立的参数理论公式计算结果与有限元纤维模型法分析结果进行了对比,验证了所提出的计算方法的可靠性。
The damage of concrete stoppers is one of the main forms of seismic damage of bridges.The steel stoppers superior for its characteristics of plasticenergy and repair. To facilitate engineering design calculations, this established moment-curvature and force-displacement calculating formulas by using the mechanical properties of the new H-beam elastic-plastic stopper, the stress of H-beam section, the relations and moment curvature analysis method. calculating formulas parameters of the H-beam stopper before yielding, yield, yield displacement and-yield stiffness. simplif bilinear hystere curve of H-beam bending elastic-plastic stoppers. heoretical formulas and finite element analysis fiber modelwere comparedhe reliability of the calculation method.
The damage of concrete stoppers is one of the main forms of seismic damage of bridges.The steel stoppers superior for its characteristics of plasticenergy and repair. To facilitate engineering design calculations, this established moment-curvature and force-displacement calculating formulas by using the mechanical properties of the new H-beam elastic-plastic stopper, the stress of H-beam section, the relations and moment curvature analysis method. calculating formulas parameters of the H-beam stopper before yielding, yield, yield displacement and-yield stiffness. simplif bilinear hystere curve of H-beam bending elastic-plastic stoppers. heoretical formulas and finite element analysis fiber modelwere comparedhe reliability of the calculation method.
引文
[1] 庄鑫,李建中,王瑞龙.横向抗震挡块对桥梁抗震性能的影响分析[J].石家庄铁道大学学报:自然科学版,2014,27(1):14-18.ZHUANG Xin,LIJianzhong,WANGRuilong .Influence analysis of lateral stop block on bridge seismic performance[J].Joural of Shijiazhuang Tiedao University(Natural Science Edition) 2014,27(1).(in Chinese)
[2] 01-2008 J T G T B.公路桥梁抗震设计细则 [S][D].2008.
[3] 2011 C J J.城市桥梁抗震设计规范 [S][D].
[4] 徐略勤,李建中.基于转动刚体模型的钢筋混凝土挡块抗震强度预测[J].工程力学,2014XU Lueqin,LI Jianzhong.Seismic strength prediction of reinforced concrete retainers based on rigid body rotation model[J].Engineering Mechanics,2014,31(10).(in Chinese)
[5] 范立础,李建中.汶川桥梁震害分析与抗震设计对策[J].公路,2009 (5):122-128.
[6] 庄卫林,余翔,易志宏,等.简支体系桥梁的震害及抗震设计对策[J].桥梁建设,2008 (4):61-64.ZHUANG WeiLin,YU Xiang ,YI Zhihong,etal.Seismic damage and design countermeasures of simply-supported system bridges[J].BRIDGE CONSTRUCTION,2008,(4).(in Chinese)
[7] 石岩,王军文,秦洪果,等.桥梁抗震挡块研究进展[J].世界地震工程,2013,2:015.SHI Yan ,WANG Junwen,QIN Hongguo,et al.Review of recent development in seismic shear keys of bridges[J].World Earthquake Engineering,2013,29(2).(in Chinese)
[8] 庄卫林,陈乐生.汶川地震公路震害分析.桥梁与隧道[M] 北京:人民交通出版社,2013.
[9] 庄卫林.新型钢结构横向防落梁装置试验及应用研究[R].成都:四川省交通运输厅,2014.
[10] 宗建.混凝土结构设计原理[M].东南大学出版社,2008.
[11] 齐虎,孙景江,林淋.OPENSEE中纤维模型的研究[J].世界地震工程,2007,23(4):48-54.
[12] 黄慧生.桥梁抗震挡块研究现状[J].公路交通科技(应用技术版).2015(11).
[13] 徐略勤,李建中.新型滑移挡块的设计、试验及防震效果研究[J].工程力学.2016,33(2).XU Lüeqin,LI Jianzhong.Design and experimental investigation of a new type sliding retainer and its efficacy in seismic fortification[J].Engineering Mechanics,2016,33(2).(in Chinese)
[14] 郑万山,唐光武.桥梁抗震挡块拟静力试验研究[J].公路交通技术.2013,(4).ZHENG Wanshan,TANGGuangwu.Quasi-static test research on seismic blocks of bridges[J].Technology of Highway and Transport,2013,(4).(in Chinese)
[15] 周行人,刘海波,胡建华.高烈度区高墩桥梁抗震措施研究[J].桥梁建设.2011,(2).ZHOU Xingren,LIUHaibo,HU Jianhua.Study of seismic resistance measures for high-rise pier bridges located in high intensity seismic region[J].Bridge Construction,2011,(2).(in Chinese)
[16] 叶爱君.桥梁抗震[M].人民交通出版社.2011.
[2] 01-2008 J T G T B.公路桥梁抗震设计细则 [S][D].2008.
[3] 2011 C J J.城市桥梁抗震设计规范 [S][D].
[4] 徐略勤,李建中.基于转动刚体模型的钢筋混凝土挡块抗震强度预测[J].工程力学,2014XU Lueqin,LI Jianzhong.Seismic strength prediction of reinforced concrete retainers based on rigid body rotation model[J].Engineering Mechanics,2014,31(10).(in Chinese)
[5] 范立础,李建中.汶川桥梁震害分析与抗震设计对策[J].公路,2009 (5):122-128.
[6] 庄卫林,余翔,易志宏,等.简支体系桥梁的震害及抗震设计对策[J].桥梁建设,2008 (4):61-64.ZHUANG WeiLin,YU Xiang ,YI Zhihong,etal.Seismic damage and design countermeasures of simply-supported system bridges[J].BRIDGE CONSTRUCTION,2008,(4).(in Chinese)
[7] 石岩,王军文,秦洪果,等.桥梁抗震挡块研究进展[J].世界地震工程,2013,2:015.SHI Yan ,WANG Junwen,QIN Hongguo,et al.Review of recent development in seismic shear keys of bridges[J].World Earthquake Engineering,2013,29(2).(in Chinese)
[8] 庄卫林,陈乐生.汶川地震公路震害分析.桥梁与隧道[M] 北京:人民交通出版社,2013.
[9] 庄卫林.新型钢结构横向防落梁装置试验及应用研究[R].成都:四川省交通运输厅,2014.
[10] 宗建.混凝土结构设计原理[M].东南大学出版社,2008.
[11] 齐虎,孙景江,林淋.OPENSEE中纤维模型的研究[J].世界地震工程,2007,23(4):48-54.
[12] 黄慧生.桥梁抗震挡块研究现状[J].公路交通科技(应用技术版).2015(11).
[13] 徐略勤,李建中.新型滑移挡块的设计、试验及防震效果研究[J].工程力学.2016,33(2).XU Lüeqin,LI Jianzhong.Design and experimental investigation of a new type sliding retainer and its efficacy in seismic fortification[J].Engineering Mechanics,2016,33(2).(in Chinese)
[14] 郑万山,唐光武.桥梁抗震挡块拟静力试验研究[J].公路交通技术.2013,(4).ZHENG Wanshan,TANGGuangwu.Quasi-static test research on seismic blocks of bridges[J].Technology of Highway and Transport,2013,(4).(in Chinese)
[15] 周行人,刘海波,胡建华.高烈度区高墩桥梁抗震措施研究[J].桥梁建设.2011,(2).ZHOU Xingren,LIUHaibo,HU Jianhua.Study of seismic resistance measures for high-rise pier bridges located in high intensity seismic region[J].Bridge Construction,2011,(2).(in Chinese)
[16] 叶爱君.桥梁抗震[M].人民交通出版社.2011.
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