钢_混凝土叠合板组合梁的非线性的分析.pdfVIP

胡少伟, 等:钢- 混凝土叠合板组合梁的非线性分析 - * 胡少伟 涂启华 ( 210029) 通过弹簧单元模拟栓钉连接件的剪切滑移效应和考虑钢筋 用的混凝土单元, 建立新型的非线性有限元 分析模型对3 根叠合板组合梁进行非线性有限元计算分析, 得到相应的荷载- 位移过程曲线, 并对组合梁的承 载能力进行评估分析结果表明, 计算结果与试验结果较为吻合 叠合板组合梁 极限抗弯承载力 连接程度 非线性有限元 NONLINEAR ANALYSIS OF STEELCONCRETE COMPOSITE BEAMS WITH COMBINED SLAB Hu Sha owei T u Qi hua ( Departm ent of Materials an Structural Engineering, Nanjing Hy raulic Research Institute Nanjing 210029) ABSTRACT Slipping spring elements are use to simulat e the effect of slippage on interface betw een concrete slab an steel beam, an combine concrete elements with steel bars effects are built, so the new nonlinear finite element mo el is provi e Using the new mo el, three composite beams are calculate un er combine ben ing loa ings, the loa ing capacities are evaluate an t he loa eflection curves are also reporte T he analysis results show that the calculating results coinci e w ith the experimental results KEY WORDS composite beams w ith combine slab ultimate flexural capacit y connection egree nonlinear finit e element - [ D] = [ D c] + [ D s] ( 1) , [ K ] = [ B] T [ D] [ B] ( 2) , , [ D c] - , , - [ D s] ( 3) : , 0 0 0 0 0 x , , 0 0 0 0 y , , 0 0 0 [ D s] = E s z ( 3)