【作者】 宋宁；

【导师】 尹越；

【作者基本信息】 天津大学 ， 结构工程， 2012， 硕士

【摘要】 砼密柱石膏复合墙板结构性能优越、施工方便、经济环保。目前已开始应用于多层建筑,为了将该体系推广应用于高层建筑,需要在分析理论和设计方法上进行更深层次的研究。根据刚度等效方法,将砼密柱石膏复合墙板简化为均质混凝土板,采用有限元软件ABAQUS建立板块分析模型,分别进行单调荷载下极限承载力分析和往复荷载下滞回性能分析。通过比较复合墙板和等效混凝土墙板的受力性能,发现弹性阶段两者刚度基本相同,塑性阶段复合墙板具有更高的承载能力和更好的耗能性能。表明结构分析中采用等效混凝土墙板代替复合墙板是安全可靠的。采用有限元软件MIDAS和ABAQUS分别建立了两种方案的砼密柱石膏复合墙板结构体系高层住宅(18层)结构分析模型,进行了振型分解反应谱分析和弹性时程分析。方案1采用复合墙板结合混凝土短肢剪力墙作为承重墙体,方案2完全采用复合墙板作为承重墙体。计算结果表明,两种方案均满足设计要求,方案1中短肢剪力墙对复合墙板结构体系起到了加强作用,结构整体刚度更大,抗震性能更好。更多还原

【Abstract】 The plasterboard structure reinforced with in-filled RC columns has the advantages of good structural performance, fast construction, low cost and no pollution. It has been applied to some multi-storey buildings. In order to develop the plasterboard structure reinforced with in-filled RC columns for high-rise buildings, it is necessary to do further studies on the analysis theory and design methods for the new structural system.Based on equivalent stiffness method, the plasterboard reinforced with in-filled RC columns can be simplified as even concrete wall. Analysis models were set up by ABAQUS and the ultimate load-carrying capacity and hysteretic behavior of different wall panels were investigated. Compared with equivalent wall panels, the plasterboard reinforced with in-filled RC columns has similar stiffness in elastic stage, but higher load-carrying capacity and better energy dissipation capacity in the plastic stage. The results indicate that it is reliable to use the equivalent wall panel in the following structure analysis.Two high-rise residential buildings (18 stories) used the new structure system were taken as case studies. Modal response spectrum analysis and elastic time-history analysis were carried out by MIDAS/GEN and ABAQUS. Building 1 has short-leg concrete shear walls as structural walls in addition to plasterboard reinforced with in-filled RC columns. In building 2, only plasterboard reinforced with in-filled RC columns are designed to be bearing walls. It was shown that both buildings satisfied related design specifications and building 1 had large stiffness and better seismic performance due to the existence of short-leg concrete shear walls.更多还原