【摘要】：以8度區(qū)(0.2g)某懸挑28 m的三角形管桁架雨棚為研究對象。輸入調(diào)整后的地震波,分別按雙向水平地震作用和三向地震作用這兩種工況,對三角形管桁架雨棚進行線性時程分析。做出這兩種工況作用下有代表性的節(jié)點位移曲線和桿件軸力、彎矩時程曲線并進行對比分析。結(jié)果表明,線性時程分析不宜忽略豎向地震分量;同時,在對三角形管桁架雨棚進行三向地震波輸入時,其加速度最大值宜考慮1∶0.85∶0.65和0.85∶1∶0.65兩種情況。
[Abstract]:In this paper, a triangular pipe truss rain shed with a suspension of 28 m in the 8 degree area (0.2 g) is taken as the research object. According to the two working conditions of bidirectional horizontal seismic action and triaxial seismic action, the linear time history analysis of triangular pipe truss rainshed is carried out by inputting the adjusted seismic wave. The representative displacement curves of joints, axial force and bending moment time history curves of members under these two working conditions are made and compared and analyzed. The results show that the vertical seismic component should not be ignored in linear time history analysis. At the same time, when the three-way seismic wave input is carried out in the triangular pipe truss rain shed, the maximum acceleration should be considered in the case of 1 鈮，

本文編號：2482141