了解双钢板-混凝土组合剪力墙变形特性的有限元

《了解双钢板-混凝土组合剪力墙变形特性的有限元》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、第!"卷第!期建!筑!钢!结!构!进!展5(06!"7(6!#$!%年#月&'()'*++,-./**012,03,-)./'24/2'*+!8*96#$!%双钢板P混凝土组合剪力墙变形特性的有限元分析武晓东'童乐为'薛伟辰!同济大学土木工程防灾国家重点实验室"上海!#$$$"##摘!要!!建立了双钢板@混凝土组合剪力墙的精细化有限元模型"在模型中采用了基于断裂能和单元特征长度的混凝土应力@应变关系"有限元分析获得的墙体侧向力@侧向总变形关系$弯矩@曲率关系与已有的他人试验结果吻合较好%对曲率二次积分求得弯曲变

2、形"将总变形分解为弯曲变形和剪切变形两部分%结果表明"破坏模式为弯曲控制的双钢板@混凝土组合剪力墙在加载过程中弯曲刚度和剪切刚度均有退化"其剪切变形不宜采用弹性方法计算"且剪切变形占总变形的比例在变形过程中基本上为常数%对剪切变形在总变形中所占的比例进行了参数分析"结果表明"剪跨比显著影响剪切变形的所占比例"轴压比的影响可忽略%最后"提出了该比例的实用计算公式%关键词!!双钢板@混凝土组合剪力墙&有限元分析&曲率&弯曲变形&剪切变形&剪跨比中图分类号!QR="H!!!!!文献标识码!>!!!!!文章编号!!:%

3、!;"=%"!#$!%#$!;$$!%;$"KLI!!$6!=":"'G64-M,64-=!@!H"=6#$!%6$!6$$=E15"%,&$+F)$+C#,#(-G"-(%5$.,()?"%-(%5$)&"(-@.""+H*()&%"."H@.""+*(56(#,."@'"$%I$++#1/?(%@A@&B"CD,-!3E3("?/+13(F.3&!./D/*d*ETD9('D/('E(OK,+D+/*'Y*324/,(-,-N,P,0B-),-**',-)"Q(-)G,R-,P*'+,/E".SD-)SD,

4、#$$$"#"NS,-D#ZR^,D(3(-)(SDW034X!!#:64(C!"#$%&'$(!>O,-,/**0*C*-/C(3*0O('+/**0@4(-4'*/*@+/**0!.N.#4(CW(+,/*+S*D'XD00+,+92,0/,-/S,+WDW*'6QS*+/'*++@+/'D,-'*0D/,(-+S,W(O4(-4'*/*,+9D+*3(-O'D4/2'**-*')ED-34SD'D4/*',+/,4*0*C*-/+,V*6QS*0D/*'D00(D3@3,+W0D4*C*-/'*0D/,(

5、-+S,WD-3C(C*-/@42'PD/2'*'*0D/,(-+S,W(9/D,-*3O'(CO,-,/**0*C*-/D-D0E+,+D)'**X*00X,/S/S**bW*',C*-/D0'*+20/+,-0,/*'D/2'*+6QS*/(/D03*O('CD/,(-(O+S*D'XD00,+3,P,3*3,-/(O0*b2'D03*O('CD/,(-D-3+S*D'3*O('CD/,(-6QS*O0*b2'D03*O('CD/,(-,+4D0420D/*39E3(290*,-/*)'D/,(-(O/S*

6、42'PD/2'*"XS,0*+S*D'3*O('CD/,(-,++29/'D4/*3O'(C/S*/(/D03*O('CD/,(-6I/,+4(-4023*3/SD/9(/SO0*b2'D0+/,OO-*++D-3+S*D'+/,OO-*++O('O0*b2'*@3(C,-D/*3.N.4(CW(+,/*+S*D'XD00+D'*3*)'D3*3,-/S*0(D3,-)W'(4*++"XS,4S,-3,4D/*++S*D'3*O('CD/,(-+S(203-(/9*,-4023*39E*0D+/,4C*/S(

7、36J('*(P*'"/S*'D/,((O+S*D'3*O('CD/,(-/(/(/D03*O('CD/,(-'*CD,-+4(-+/D-/6&D'DC*/',4+/23E,-3,4D/*+/SD/+S*D'@+WD-'D/,(SD+D-,CW('/D-/,-O02*-4*(-/S*'D/,((O+S*D'3*O('CD/,(-/(/(/D03*O('CD/,(-"92//S*,-O02*-4*(ODb,D04(CW'*++,(-'D/,(CDE9*,)-('*36>/0D+/"DW'D4/,4D0O('C20

8、DO('4D0420D/,-)/S*'D/,((O+S*D'3*O('CD/,(-/(/(/D03*O('CD/,(-,+W'(W(+*36()*+,%-#(!+/**0@4(-4'*/*@+/**04(CW(+,/*+S*D'XD00&O,-,/**0*C*-/D-D0E+,+&42'PD/2'*&O0*b2'D03*O('CD/,(-&+S*D'3*O('CD/,(-&+S*D'@