新旧建筑抗震设计规范关于“强柱弱梁”的对比和分析
|
摘要
从框架柱弯矩调整系数、抗震构造措施等方面对我国新旧建筑抗震设计规范(GB 50011-2010和GB 50011-2001)关于"强柱弱梁"上规定的差异进行了比较分析,详细地分析了影响"强柱弱梁"实现的主要因素。采用新旧两个抗震设计规范分别对抗震等级为一、二、三级的3个钢筋混凝土现浇楼板框架结构进行了计算分析,分别计算新旧两个规范下,考虑现浇楼板及其钢筋对框架梁抗弯承载力的贡献时节点处柱梁端实际抗弯承载力比,并对其进行了比较分析。
The differences of strong-column weak-beam between the new and old code for seismic design of buildings(GB 50011-2010 and GB 50011-2001) are analyzed comparatively from moment magnifying coefficients at column ends of frames and details of seismic design,and the main factors of ensuring strong-column weak-beam are analyzed in detail.Three RC frame structures with casting slab of seismic grades in the first,second and third grade are calculated respectively and designed by the new and old codes for seismic design of buildings,and considering the contribution of the slab and its reinforcements the ratio of actual column-to-beam flexural strength at joint are calculated and analyzed comparatively under the new and old codes for seismic design of buildings.
The differences of strong-column weak-beam between the new and old code for seismic design of buildings(GB 50011-2010 and GB 50011-2001) are analyzed comparatively from moment magnifying coefficients at column ends of frames and details of seismic design,and the main factors of ensuring strong-column weak-beam are analyzed in detail.Three RC frame structures with casting slab of seismic grades in the first,second and third grade are calculated respectively and designed by the new and old codes for seismic design of buildings,and considering the contribution of the slab and its reinforcements the ratio of actual column-to-beam flexural strength at joint are calculated and analyzed comparatively under the new and old codes for seismic design of buildings.
引文
[1]GB 50011-2001,建筑抗震设计规范[S]GB 50011-2001,Code for Seismic Design of Buildings[S](in Chinese)
[2]GB 50011-2010,建筑抗震设计规范[S]GB 50011-2001,Code for Seismic Design of Buildings[S](in Chinese)
[3]叶列平,曲哲,等.从汶川地震框架结构震害谈“强柱弱梁”屈服机制的实现[J].建筑结构,2008,38(11):52～59 Ye Lie-ping,Qu Zhe,et al.Study on Ensuring the Strong Column-weak Beam Mechanism for RC Frames Based on the Damage Analysis in the Wenchuan Earthquak[J].Building Structure,2008,38(11):52～59(in Chinese)
[4]车轶,尤杰.中欧抗震设计规范关于“强柱弱梁”设计比较[J].大连理工大学学报,2009,49(5):758～763 Che Yi,You Jie.Comparison of“strong column-weak beam”Design between Chinese Seismic Design CodeGB 50010-2001 and Eurocode EN 1998-1[J].Journal of Dalian University of Technology,2009,49(5):758～763(in Chinese)
[5]JGJ-2002,高层建筑混凝土结构技术规程[S]JGJ-2002,Technical Specification for Concrete Structures of Tall Building[S](in Chinese)
[6]王素裹.强震作用下现浇RC楼板对框架结构破坏形态影响的研究[D].广州:华南理工大学,2009 Wang Su-guo,The Failure Mode of Frame Structure in the Strong Earthquake with Monolithical RC Slab in Consideration[D].Guangzhou:South China University of Technology,2009(in Chinese)
[7]蔡健,周靖,方小丹.柱端弯矩增大系数取值对RC框架结构抗震性能影响的评估[J].土木工程学报,2009,40(1):6～14 Cai Jian,Zhou Jing,Fang Xiao-dan.Evaluation of Influences of Var Ious Moment Magnifying Coefficients at Column Ends of RC Frames on Seismic Performance[J].China Civil Engineering Journal,2009,40(1):6～14(in Chinese)
[8]蒋永生,陈忠范,等.整浇梁板的框架节点抗震研究[J].建筑结构学报,1994,15(6):11～16 Jiang Yong-sheng,Chen Zhong-fan,et al.Aseismic Research on RC Frame Joint of Monolithically Casted Slab[J].Journal of Building Structures,1994,15(6):11～16(in Chinese)
[2]GB 50011-2010,建筑抗震设计规范[S]GB 50011-2001,Code for Seismic Design of Buildings[S](in Chinese)
[3]叶列平,曲哲,等.从汶川地震框架结构震害谈“强柱弱梁”屈服机制的实现[J].建筑结构,2008,38(11):52～59 Ye Lie-ping,Qu Zhe,et al.Study on Ensuring the Strong Column-weak Beam Mechanism for RC Frames Based on the Damage Analysis in the Wenchuan Earthquak[J].Building Structure,2008,38(11):52～59(in Chinese)
[4]车轶,尤杰.中欧抗震设计规范关于“强柱弱梁”设计比较[J].大连理工大学学报,2009,49(5):758～763 Che Yi,You Jie.Comparison of“strong column-weak beam”Design between Chinese Seismic Design CodeGB 50010-2001 and Eurocode EN 1998-1[J].Journal of Dalian University of Technology,2009,49(5):758～763(in Chinese)
[5]JGJ-2002,高层建筑混凝土结构技术规程[S]JGJ-2002,Technical Specification for Concrete Structures of Tall Building[S](in Chinese)
[6]王素裹.强震作用下现浇RC楼板对框架结构破坏形态影响的研究[D].广州:华南理工大学,2009 Wang Su-guo,The Failure Mode of Frame Structure in the Strong Earthquake with Monolithical RC Slab in Consideration[D].Guangzhou:South China University of Technology,2009(in Chinese)
[7]蔡健,周靖,方小丹.柱端弯矩增大系数取值对RC框架结构抗震性能影响的评估[J].土木工程学报,2009,40(1):6～14 Cai Jian,Zhou Jing,Fang Xiao-dan.Evaluation of Influences of Var Ious Moment Magnifying Coefficients at Column Ends of RC Frames on Seismic Performance[J].China Civil Engineering Journal,2009,40(1):6～14(in Chinese)
[8]蒋永生,陈忠范,等.整浇梁板的框架节点抗震研究[J].建筑结构学报,1994,15(6):11～16 Jiang Yong-sheng,Chen Zhong-fan,et al.Aseismic Research on RC Frame Joint of Monolithically Casted Slab[J].Journal of Building Structures,1994,15(6):11～16(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心