能力谱与侧向荷载分布模式的关系  

Relationship between capacity spectra and lateral load patterns

作　　者：王树和[1] 郝猷猷[2] 高印立[2] 宋波[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]中国建筑科学研究院,北京100013

出　　处：《北京科技大学学报》2009年第10期1218-1223,共6页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金重大研究计划资助项目(No.90715007)

摘　　要：根据结构动力学理论证明了能力谱曲线的确定与侧向荷载分布模式间存在对应关系,指出对于不同的侧向荷载模式,应采用不同的能力谱曲线转化公式并给出了具体的表达式.分别采用本文方法、传统方法和弹塑性时程分析对一个六层钢筋混凝土框架结构进行了计算,证明了本文方法计算精度更高.利用该方法,采用多种侧向荷载模式对结构进行静力弹塑性分析,能将侧向位移反应可能范围限定得更小,使人们把握实际地震反应大小的准确性得以提高.Based on the structural dynamic theory, the relationship between capacity spectra and lateral load patterns was demonstrated. It was pointed out that different formulae of capacity spectrum curves should be used for different lateral load patterns and the formulas were given. A six-story reinforced concrete frame structure was designed and analyzed using the proposed method, the classical method and the time history analysis method respectively. The result shows that the proposed method is more accurate. Using the proposed method and the different lateral load patterns the seismic response can be bounded within a narrower scope, which will help to know the seismic response more accurately.

关 键 词：能力谱方法 侧向荷载模式 静力非线性分析 地震反应 

分 类 号：P315.9[天文地球—地震学]