建筑机电工程中有关抗震支架的研究

RESEARCH ON SEISMIC BRACKETS IN BUILDING MECHANICAL AND ELECTRICAL ENGINEERING

以江苏省徐州市经济技术开发区为研究对象,针对工程中管道及机电安装中吊挂结构的抗震问题,研究一种新的结构体系,并采用数值计算方法,构建结构体系的三维有限元计算模型。研究发现,在不同的振位状态下,吊杆的加速度反应值随吊臂高度的增大而呈非线性增长;在相同的吊索高情况下,随着吊索比的增大,结构的地震反应也相应减小;当受力位移过程发生改变时,受力悬臂与减震斜撑杆受力基本成对称分布,荷载0 mm时,受力最大轴力分别为886 kN和1078 kN;当荷载和位移相等时,斜拉承受的轴向力要比加强梁的轴向力大。

Taking Xuzhou Economic and Technological Development Zone of Jiangsu Province as the research object,aiming at the seismic problem of hanging structures in pipelines and mechanical and electrical installations in engineering,a new structural system was studied,and a three-dimensional finite element calculation model of the structural system was constructed by numerical calculation method.Under different vibration states,the acceleration response value of the boom increases nonlinearly with the increase of the boom height;under the same sling height,with the increase of the sling ratio,the seismic response of the structure also decreases correspondingly;when the force displacement process changes,the stress cantilever and the damping diagonal brace are basically symmetrically distributed,and the maximum axial force of the force is 886 kN and 1078 kN respectively when the load is 0 mm;when the load and displacement are equal,the axial force of the cable-stayed tension is greater than that of the reinforcing beam.