【作者】 金怀印；

【导师】 许淑芳；

【作者基本信息】 西安建筑科技大学 ， 结构工程， 2004， 硕士

【摘要】 为了在建筑业贯彻可持续发展战略，大力推行各项墙体改革、发展新的住宅结构体系已经成为目前工程界的首要任务之一。 针对传统现浇钢筋混凝土剪力墙结构自重大、刚度大、自振作用大、延性差以及保温隔热等建筑节能性能差等诸多缺点，本课题对其进行改革，提出了一种新型的带缝空心钢筋混凝土剪力墙结构，此结构具有自重轻、刚度小、延性及变形能力好、耗能能力强等优点，是一种新型抗震、节能的承重结构。 为研究此种新型结构的特性，进行了带缝空心钢筋混凝土剪力墙结构六层楼房1／3.0模型拟动力试验和拟静力试验。研究了结构在水平地震作用下的受力特点、变形特征、破坏形态等力学性能；得到了结构在不同阶段的周期、频率、阻尼等动力特性的变化规律；讨论了结构各楼层的水平位移、层间位移、动力放大系数及构件应变分布等结构地震反应特征；分析了结构的变形性能、滞回特征和恢复力特性。 在试验研究的基础上，利用大型有限元分析软件ANSYS对带缝与不带缝的六层空心钢筋混凝土剪力墙结构分别进行模拟，对其进行了模态分析和弹性动力时程分析，并结合试验结果将两种结构模型的模拟结果进行了对比。分析了人工竖缝对结构的动力特性、抗震性能、破坏机理等方面的影响。 试验研究和有限元分析得出：此种带缝空心钢筋混凝土剪力墙结构中竖向孔洞的存在减轻了结构的自重，因而降低了结构的地震作用。在小震作用下，人工竖缝对结构的周期、频率、振型等动力特性影响不大，结构具有较高的刚度和承载力。在大震作用下，人工竖缝发挥作用，改变了墙肢的破坏形态、降低了结构的刚度和地震作用。故此带缝空心钢筋混凝土剪力墙结构是一种延性的剪力墙结构，具有极佳的推广价值。更多还原

【Abstract】 In order to carry forward the sustainable development in the building industry, the reforming of wall material and the development of new residence system have been one of the most important tasks in present engineering field.Considering that the traditional cast-in-situ R. C. shear wall structure has such disadvantages as large self-weight, stiffness and seismic forces, poor ductility and energy wasting, the subject puts forward a new type of hollow shear wall of R. C. stucture with seams which has the advantages of not only high bearing capacity but also small self-weight, stiffness and good ductility and so on. It is a new kind of earthquake resistant and energy-saving structure.To study the characteristics of the new-type structure, the psedo-dynamic and psedo-static test of one third-scale model six-storey building assembled with hollow shear wall of R. C. with seams were conducted. We studied the structural dyanamic performances such as interal force, deformation and failure forms and so on under the horizontal earthquake action, got the regularity of the structural period, frequency, damping and other dyanamic behaviors in different stages, discussed the characteristics of earthquake response such as structural displacement, interstorey drift, earthquake action, the amplificatory coefficient of seismic action and the regularity of members’ strain and analyzed the deformation property, the characteristics of hysteretic curve and the restoring force.On the basis of the experimental study, we adopted the large-scale finite element software ANSYS to simulate the structure of hollow shear wall with seams and the structure of hollow shear wall without seams respectively .The simulation included modal analysis and dynamic time-history analysis. Further, the simulated results on two modals were contrasted in combination with the experimental results. Finally,the effects of the artificial vertical seams on the dynamic characteristics, forced properties and failure mechanism were analyzed.Through experimental study and finite element analysis, we draw that the vertical holes in the hollow shear wall structure with seams lessen self-weight so as to lower the earthquake action. In the case of frequently occurred earthquake, the artificial vertical seams have little influence on structural periods, frequencies and vibration modes, what’ s more, the structure has strong stiffness and bearing capacity. In the case of seldomly occurred earthquake, the artificial vertical seams play their roles, changes the failure forms of coupling wall-column and lower structural stiffness and earthquake action . it is conclude that the hollow shear wall structure of R. C. with seams is a kind of ductile shear wall structure and can be widely used in engineering field.更多还原