暗柱配置1000 MPa级高强钢筋混凝土剪力墙抗震性能研究
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摘要
通过对4片剪跨比为2.43的钢筋混凝土剪力墙试件进行低周反复加载试验,研究1 000 MPa级高强钢筋用于剪力墙边缘约束暗柱时的抗弯承载力、延性、耗能能力及破坏特征。结果表明:与普通钢筋混凝土剪力墙相比,边缘约束暗柱内配置高强钢筋的剪力墙抗弯承载力提高,屈服位移和极限位移也有较大提高。在试验基础上提出了考虑暗柱高强钢筋的混凝土剪力墙水平承载力计算式,计算值与试验值吻合较好。
Experimental studies on four shear wall specimens under low-cyclic reversed loading were carried out,in which high-strength rebar with the yield strength of 1 000 MPa were used in boundary embedded columns of reinforced concrete shear walls. The bending bearing capacity,ductility,energy dissipation capacity and the failure characteristics of high-rise shear wall with high-strength rebar were researched. The results showed that compared to RC shear wall with normal-strength steel,the bending bearing capacity of specimens with high-strength steel used as longitudinal reinforcement in boundary concealed columns was increased,and the yield and ultimate displacement were improved greatly. Finally,the calculation formula of horizontal bearing capacity of high-strength reinforced concrete shear wall with concealed column was given. The analysis results showed that the calculated values were in good consistent with the experimental data.
Experimental studies on four shear wall specimens under low-cyclic reversed loading were carried out,in which high-strength rebar with the yield strength of 1 000 MPa were used in boundary embedded columns of reinforced concrete shear walls. The bending bearing capacity,ductility,energy dissipation capacity and the failure characteristics of high-rise shear wall with high-strength rebar were researched. The results showed that compared to RC shear wall with normal-strength steel,the bending bearing capacity of specimens with high-strength steel used as longitudinal reinforcement in boundary concealed columns was increased,and the yield and ultimate displacement were improved greatly. Finally,the calculation formula of horizontal bearing capacity of high-strength reinforced concrete shear wall with concealed column was given. The analysis results showed that the calculated values were in good consistent with the experimental data.
引文
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[2]GB 50010—2010混凝土结构设计规范[S].
[3]GB 50011—2010建筑抗震设计规范[S].
[4]JGJ 3—2010高层建筑混凝土结构技术规程[S].
[5]Cho S H,Tupper B,Cook W D.Structural Steel Boundary Elements for Ductile Concrete Walls[J].Journal of Structural Engineering,2004,130(5):762-768.
[6]张曰果,张隆飞,阎石.高强钢筋高强混凝土剪力墙抗震性能试验[J].沈阳建筑大学学报:自然科学版,2010,26(1):119-123.
[7]章红梅,吕西林,鲁亮,等.边缘约束构件对钢筋混凝土剪力墙抗震性能的影响[J].地震工程与工程振动,2007,27(1):92-98.
[8]孙建超,徐培福,肖从真,等.不同配筋形式混凝土剪力墙受剪性能试验研究[J].建筑结构,2008,38(6):6-10.
[9]白亮,梁兴文.边缘约束构件配箍特征值对剪力墙轴压比限值影响的分析[J].工业建筑,2009,39(4):44-48.
[10]张建伟,曹万林,王志惠,等.内藏钢桁架组合中高剪力墙的抗震性能[J].工业建筑,2009,39(8):101-110.
[11]王敏,曹万林,张建伟,等.钢管混凝土边框高强混凝土组合剪力墙抗震性能试验研究[J].地震工程与工程振动,2008,28(2):90-95.
[12]李振宝,解咏平,杜修力.单调水平荷载作用下钢筋混凝土柱受弯性能尺寸效应试验研究[J].建筑结构学报,2013,34(12):77-85.
[2]GB 50010—2010混凝土结构设计规范[S].
[3]GB 50011—2010建筑抗震设计规范[S].
[4]JGJ 3—2010高层建筑混凝土结构技术规程[S].
[5]Cho S H,Tupper B,Cook W D.Structural Steel Boundary Elements for Ductile Concrete Walls[J].Journal of Structural Engineering,2004,130(5):762-768.
[6]张曰果,张隆飞,阎石.高强钢筋高强混凝土剪力墙抗震性能试验[J].沈阳建筑大学学报:自然科学版,2010,26(1):119-123.
[7]章红梅,吕西林,鲁亮,等.边缘约束构件对钢筋混凝土剪力墙抗震性能的影响[J].地震工程与工程振动,2007,27(1):92-98.
[8]孙建超,徐培福,肖从真,等.不同配筋形式混凝土剪力墙受剪性能试验研究[J].建筑结构,2008,38(6):6-10.
[9]白亮,梁兴文.边缘约束构件配箍特征值对剪力墙轴压比限值影响的分析[J].工业建筑,2009,39(4):44-48.
[10]张建伟,曹万林,王志惠,等.内藏钢桁架组合中高剪力墙的抗震性能[J].工业建筑,2009,39(8):101-110.
[11]王敏,曹万林,张建伟,等.钢管混凝土边框高强混凝土组合剪力墙抗震性能试验研究[J].地震工程与工程振动,2008,28(2):90-95.
[12]李振宝,解咏平,杜修力.单调水平荷载作用下钢筋混凝土柱受弯性能尺寸效应试验研究[J].建筑结构学报,2013,34(12):77-85.
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