水平地震荷载下结构的抗震分析

Seismic Analysis of Structures Under Horizontal Earthquake Load

针对一座八层钢筋混凝土框架结构的办公楼建立有限元模型,分析地震荷载等对结构承载力的影响.结果表明:雪荷载、风荷载对结构的影响可以忽略不计,而地震荷载降低了结构的承载力,增大了结构变形,它产生的影响不容忽视,故结构设计中要经过合理的抗震计算并采取妥善的抗震构造措施,在一般烈度下保证建造的多层和高层钢筋混凝土房屋结构的安全.

The finite element model is established lor an eight-storied office building with reinforced concrete frame structures,and the influence of seismic loads on the bearing capacity of the structure is analyzed. The re-sults show that the snow load and wind load on the structure is negligible, and the seismic load reduces the bear-ing capacity of structure,while increases the structural deformation,which can not be ignored. Thus the reasona-ble seismic calculation and countermeasures of seismic structure can ensure the security of multi-storey and high- rise reinforced concrete building in general intensity.