【作者】 彭勃；

【导师】 黄远； 朱亮；

【作者基本信息】 湖南大学 ， 建筑与土木工程（专业学位）， 2017， 硕士

【摘要】 在地震作用下,楼板不仅要承担面外竖向荷载,同时要将水平地震作用传给各个抗侧力构件,协调框架与剪力墙之间的变形,也将承担面内水平荷载,楼板的隔板作用将影响建筑物的整体受力。为了研究装配整体式楼板的隔板作用,本文采用有限元分析软件MSC.Marc对装配整体式楼板进行精细有限元分析,并采用结构分析软件ETABS对装配整体式楼板框架剪力墙结构进行弹塑性动力时程分析,初步探讨了装配整体式楼板的面内受力性能以及装配整体式楼板框剪结构的抗震性能。完成的工作和获得的主要成果包括:(1)根据已有试验结果分别建立现浇楼板和装配整体式楼板精细有限元模型,在验证了有限元模型合理性的基础上,对装配整体式楼板进行参数分析,来研究各个参数变化对装配整体式楼板面内性能的影响。(2)改变混凝土强度;楼板现浇层厚度;支座负筋直径、强度和穿孔钢筋直径、强度,对不同参数条件下的现浇楼板和装配整体式楼板进行精细有限元分析,提出了一般情况下装配整体式楼板的刚度和承载力折减系数计算公式。(3)采用结构分析软件ETABS,结合精细有限元分析得到的装配整体式楼板的刚度和承载力折减系数,分别建立现浇楼板框架剪力墙结构和装配整体式楼板框架剪力墙结构模型,通过对结构进行弹性反应谱分析和弹塑性动力时程分析,来探讨装配整体式楼板框剪结构的整体抗震性能。更多还原

【Abstract】 Under seismic action,the floor should not only bear vertical load outside surface,and at the same time pass the horizontal seismic action to each component to resist lateral force,coordinate the deformation of frame and shear wall,but also bear the in-plane horizontal load,and the partition effect of the floor will affect the overall force of the building.In order to study the partition effect of the assembled monolithic slab,this paper uses the finite element analysis software MSC.Marc to conduct detailed finite element analysis on the assembled monolithic slab,and uses the structure analysis software ETABS to conduct the dynamic elastic-plastic time history analysis on the assembled monolithic slab frame shear wall structure.The in-plane mechanical properties of the assembled monolithic slab and the seismic performance of assembled monolithic slab frame shear structure are preliminarily discussed.The completed work and the main results obtained include:(1)According to the existing test results,set up the cast-in-place floor slab finite element model and the assembly monolithic slab finite element model respectively,on the basis of verifying the rationality of the finite element model,conduct the assembled monolithic slab parameter analysis,and study various parameters how to effect the in-plane mechanical performance of the assembled monolithic slab.(2)Change the strength of concrete;floor slab cast-in-place layer thickness;the strength and diameter of Bearing steel and perforated rebar,conduct cast-in-place floor slab and assembled monolithic slab finite element analysis under the condition with the different parameters,put forward the assembly monolithic slab rigidity and bearing capacity reduction coefficient calculation formula in the general case.(3)Use the structure analysis software ETABS program,combined with finite element analysis to get assembled monolithic slab rigidity and bearing capacity reduction factor,to establish cast-in-place floor slab frame shear wall structure and assembly monolithic slab frame shear wall structure model respectively,based on the structure of elastic response spectrum analysis and dynamic elastic-plastic time history analysis,to explore the assembled monolithic slab frame shear structure overall seismic performance.更多还原