%0 Journal Article
%T 水平地震作用下建筑顶层重力荷载能力研究<br>Gravity Load Capacity of the Top Floor of a Building during Horizontal Earthquake
%A 袁慧子
%A 许浒
%J 地震工程学报
%D 2019
%R 10.3969/j.issn.1000-0844.2019.03.613
%X 地震灾害的发生给人们的生命财产安全带来了极大的威胁，为了保障在地震发生时建筑的安全，需要时刻对试件的荷载、初始刚度、延性系数、建筑模型的竖向位移等信息进行检测，一旦重力荷载高于峰值荷载，建筑安全将不能得到保障。为分析水平地震作用下建筑的顶层重力荷载能力，首先建立用于实验的一榀三层三跨式的房屋建筑模型，检测这种模型处于重力荷载作用情况下的侧向刚度，用来了解在建筑顶层结构在处于水平地震作用情况下重力荷载对其检测刚度的影响程度。然后从模型中选取5个试件，对这些试件的材料属性、实验结果、荷载位移进行分析，再通过实验模型的重力荷载位移曲线确定建筑的峰值荷载为700 kN，即当建筑顶层的峰值荷载超过700 kN时，建筑的安全性将难以保证。<br>The occurrence of earthquake disasters poses a great threat to the safety of human life and property. To ensure the safety of buildings during earthquakes, determination of the load, initial stiffness, ductility coefficient, and vertical displacement of buildings is required. If the gravity load is higher than the peak value, the building safety cannot be guaranteed. To analyze the gravity load capacity of the top floor of a building during a horizontal earthquake, we established a three-story, three-span building model to test the lateral stiffness of the building under gravity load. Then, we studied the influence of the gravity load on the detected stiffness of the top structure of the building during a horizontal earthquake. We selected five specimens from the model, and analyzed their material properties, experimental results, and load displacements. The peak load of the building, as determined by the gravity load displacement curve of the experimental model, was 700 kN. That is, when the peak load of the top floor of the building exceeds 700 kN, the safety of the building cannot be guaranteed
%K 水平地震
%K 顶层建筑
%K 重力荷载
%K 位移<br>horizontal earthquake
%K top floor building
%K gravity load
%K displacement
%U http://dzgcxb.ijournals.cn/ch/reader/view_abstract.aspx?file_no=20190310&flag=1