密柱-钢板深梁结构抗震性能试验研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
提出了一种内藏密柱-钢板深梁混凝土组合剪力墙,密柱-钢板深梁为其核心钢构.为研发高性能密柱-钢板深梁结构,对4个具有不同设计参数的试件进行了低周反复荷载试验.试件的密柱分为方钢管混凝土、圆钢管混凝土、工字钢3种截面,钢板深梁分为Q235,Q345两种钢材,试件剪跨比为1.5.基于试验,分析了各试件的承载力、刚度及退化过程、延性、滞回特性、耗能、损伤与破坏过程,提出了密柱-钢板深梁结构承载力计算模型,计算结果与实测结果符合较好.研究结果表明:"强密柱、弱钢板深梁"型结构可实现延性屈服机制;密柱截面用钢量相同时,采用圆钢管混凝土密柱的结构性能最好;与采用Q345钢板深梁的结构相比,采用Q235钢板深梁的结构虽承载力略小但延性更好;密柱-钢板深梁结构具有良好的抗震性能和延性屈服机制.
The composite concrete shear wall embedded with dense columns-deep steel plate beams as the core structure was proposed. In order to investigate a high-performance structure with dense columns-deep steel plate beams,lowcyclic loading experiments were carried out on four specimens with different design parameters. Three section styles,including concrete filled square steel tube column,concrete filled circular steel tube column,and I-section steel column,were adopted for dense columns. The steel strengths of deep beams included two grades,Q235 and Q345. The shear span ratios of all the specimens were 1. 5. Based on the experiments,the load-bearing capacities,stiffness and deterioration processes,ductilities,hysteretic behaviors,energy dissipations,damage and failure processes of specimens were analyzed. The load-bearing capacity calculation model was established,and the calculation results were in good agreement with the test results. The investigation results showthat the structure with "strong columns and weak deep steel plate beams"can achieve the ductile yield mechanism. Among three types of dense columns with the same steel consumption,the structure with circular steel tube columns has the best seismic performance. Compared with the structure of Q345,the structure with steel deep beams of Q235 has better ductility in spite of lower loadbearing capacity. The structure with dense columns-deep steel plate beams has good seismic performance and shows good ductile yield mechanism.
引文
[1]聂建国,卜凡民,樊健生.低剪跨比双钢板-混凝土组合剪力墙抗震性能试验研究[J].建筑结构学报,2011,32(11):74-81.Nie Jianguo,Bu Fanmin,Fan Jiansheng.Experimental research on seismic behavior of low shear-span ratio composite shear w all w ith double steel plates and infill concrete[J].Journal of Building Structures,2011,32(11):74-81.(in Chinese)
    [2]聂建国,胡红松,李盛勇,等.方钢管混凝土暗柱内嵌钢板-混凝土组合剪力墙抗震性能试验研究[J].建筑结构学报,2013,34(1):52-60.Nie Jianguo,Hu Hongsong,Li Shengyong,et al.Experimental study on seismic behavior of steel plate reinforced concrete composite shear w alls w ith square CFST concealed columns[J].Journal of Building Structures,2013,34(1):52-60.(in Chinese)
    [3]吕西林,干淳洁,王威.内置钢板钢筋混凝土剪力墙抗震性能研究[J].建筑结构学报,2009,30(5):89-96.LüXilin,Gan Chunjie,Wang Wei.Study on seismic behavior of steel plate reinforced concrete shear w alls[J].Journal of Building Structures,2009,30(5):89-96.(in Chinese)
    [4]崔龙飞,蒋欢军,吕尚文.内置钢板与内置钢桁架混凝土组合剪力墙抗震性能对比研究[J].建筑结构学报,2013,34(3):132-140.Cui Longfei,Jiang Huanjun,LüShangw en.Comparative study on seismic behavior of RC composite shear w all w ith steel plate and steel truss[J].Journal of Building Structures,2013,34(3):132-140.(in Chinese)
    [5]崔龙飞,蒋欢军,吕尚文.不同钢-混凝土组合剪力墙抗震性能对比分析[J].结构工程师,2012,28(2):80-88.Cui Longfei,Jiang Huanjun,LüShangw en.Comparison of seismic behavior of different steel-concrete composite shear w alls[J].Structural Engineers,2012,28(2):80-88.(in Chinese)
    [6]蒋欢军,吕西林.新型抗震耗能剪力墙地震耗能计算及优化分析[J].同济大学学报:自然科学版,2000,28(4):383-387.Jiang Huanjun,LüXilin,Calculation of seismic energy dissipation and optimal analysis for a new type of energy dissipation shear w alls[J].Journal of Tongji University:Natural Science,2000,28(4):383-387.(in Chinese)
    [7]Kharmale S B,Ghosh S.Performance-based plastic design of steel plate shear w alls[J].Journal of Constructional Steel Research,2013,90:85-97.
    [8]曹万林,于传鹏,董宏英,等,钢管混凝土边框内藏钢板剪力墙抗震试验与损伤加固[J].自然灾害学报,2013,22(2):36-43.Cao Wanlin,Yu Chuanpeng,Dong Hongying,et al.Seismic experiments and retrofitting of shear w all w ith CFST columns and embedded steel plates[J].Journal of Natural Disasters,2013,22(2):36-43.(in Chinese)
    [9]朱伯龙.结构抗震试验[M].北京:地震出版社,1989:140-141.
    [10]中华人民共和国住房和城乡建设部.GB 50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2010.

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