Adding the eccentric brace to the reinforced concrete frame is for strengthening the side stiffness and improving the load - bearing and energy consume ability . when the braced frame resists external force , there is higher side - stiffness at the state of elasticity 在钢筋砼框架结构中加入偏心支撑，其主要目的是提高钢筋砼框架的抗侧刚度、改善框架结构的承载力和耗能能力。
Its test specimens are four r . c hollow shear walls with vertical seams ; they have different heights and two loading measures . firstly , studies the stress distribution and deformation of the shear wall in elastic phase with ansys limited element program 本课题为带竖缝钢筋砼空心剪力墙板抗震性能试验研究，试验的对象为四个不同剪跨比和加载条件的带竖缝钢筋砼空心剪力墙板。
It was found that , for a typical reinforced concrete slab bridge , the reduction of strctural capacity at the time of severe cracking or spalling is relatively modest and causes probability of collapse conditional on spalling to increase by about an order of magnitude 对典型的钢筋砼板桥，结构能力在裂缝和剥落期间的恢复是相对适度，而且引起相当数量级形式剥落增长而崩溃的可能。
I . a mtil ( iaxial elastic - plastic hardening - sofling constitutive model of concrete is proposed iii order to offer a nonlinear material model of concrete for space restoring force analysis of reinforced concrete members taking into account the softening behavior of concrete . the concrete material model is incorporated the elastic - plastic hardening fracturing constitutive model of concrete with the plastic - fracturing theory of concrete , modified without defining two loading functiomis , and based on five parameter power function failure criterion proposed by guo zheng - hai etc from tsingliua ( jniversity , or three parameter unified strength theory proposed by yu mao - hong from x ian iiaotong university 1 、将砼弹塑性硬化断裂本构模型与塑性断裂理论结合起来，并加以改进，但无需定义两个加载面，以清华大学过镇海建议的五参数幂函数或以西安交通大学俞茂宏建议的，参数统一强度理论作为砼的强度破坏准则，建立了砼多轴弹塑性硬化松驰本构模型，能为钢筋砼构件空间恢复力分析提供砼非线性材料模型，并能反映砼材料的软化段。
Doctor candidate : yan qiwu supervisor : prof . slien pllsheng iii this thesis , a systematic theory on spatial elastic - plastic time - history analysis of reinforced concrete frame - tube structures tinder strong multiple earthquake excitations is established . covering problems about materal , rnember and structural system considering about the nonlinearity of material , geometry and boundary 木文考虑了材料、几何、边界非线性，建立了从材料、构件到结构的一个较为系统的钢筋砼框筒结构在多维地震波作用下的空间弹塑性时程分析理论。
Through the investigation research on practical damaged element , considering the effect of corrosion , high temperature , wet environment , damage ( crack ) on structural durability , bearing capacity . this paper established the reliability analysis method of large - scale industrial factory , and applied the fuzzy mathematics to establish the factor set and weight coefficient set on the basis of expert experience . an analyzed method for fuzzy evaluation of structural element and bent frame structure system reliability is put forward 通过对实际结构破损构件的调查，考虑腐蚀，高温，环境潮湿，破损(裂缝)等因素对结构耐久性、承载力的影响，论文建立了大型工业厂房可靠度的计算方法，利用专家经验和模糊数学方法建立了模糊评价的因素集和权重集，对钢筋砼结构构件和厂房排架结构体系进行了模糊评价。
The no . l , no . 2 and no . 3 specimen , in its given order is ordinary style , “ x ” steel bracing style and slit style of hollow shear wall of r . c firstly , by low - cycle and reverse horizonal loading test their properties including strength property , deformation property and energy property are studied 本课题为钢筋砼空心剪力墙板的试验研究与可行性分析，课题试验的对象为三个钢筋砼空心剪力墙板。试件一、二、三分别为整体式、带十字撑形式、分体式钢筋砼空心剪力墙板。
In the paper , with the theoretical knowledge of blasting demolition of reinforced concrete framing structure in rural and foreign , we set up all kinds of knowledge base of blasting demolition of reinforced concrete framing structure , such as blasting power . . explosive properties of blasting power , base of blasting demolition . with the actual projects and the field experience , we set up the sample base , for example engineering condition , detonation parameter , blasting effect 本论文在总结现有国内外文献资料对钢筋砼框架结构建筑物拆除爆破的爆破设计及分析方法和技术的基础上，对钢筋砼框架结构建筑物拆除爆破作出一些定性和定量的数值分析和计算，建立简化的力学模型和示意图。
Secondly , by low - cycle and reverse horizontal loading test , their properties including strength property , deformation property and energy property are studied . we study the loading characteristic values ; the property of hysteretic curve and skeleton - frame curves ; the ductility property and stiffness degradation . at last we analyze the destroy principle and affection reasons of hollow shear wall of r . c with vertical seams in different height and loading measures , we also give the bearing capability calculation formulas and design advises for new type hollow shear wall of r . c 首先运用ansys有限元程序分析弹性阶段水平外荷载施加后，带竖缝钢筋砼空心剪力墙板内应力分布及变形情况，再在试验数据的基础上，研究低周反复水平加载条件下，各试件的强度、变形、能量特性；各试件的荷载特征值；各试件的滞回曲线、骨架曲线；延性及刚度退化等参数；最后，分析了不同剪跨比和加载条件的带竖缝钢筋砼空心剪力墙板的破坏机理和承载力影响因素，并给出不同剪跨比和加载条件的带竖缝钢筋砼空心剪力墙板承载力计算公式及设计建议。
For above resons , our subject studies hollow shear wall of r . c . which has not only good energy saving capability but also small self - weight small stiffess and good ductility if the wall is put into use , shear wall structures will be energy saving and ductile structures . l our subject focuses on the experimental study and practicability analysis of hollow shear wall of r . c . its test specimens are three differeot hollow shear wal1s of r . c 正是在这种情况下，本课题研究的是钢筋砼空心剪力墙板，它既具有好的节能性，又具有自重轻、刚度小、延性好（尤其是试件三）的特点，将其用于剪力墙结构体系会是一种有着良好节能性的“延性剪力墙结构” 。
