| 地面运动强度指标对RC桥墩地震需求的影响 |
| |
| 引用本文： | 叶生. 地面运动强度指标对RC桥墩地震需求的影响[J]. 合肥工业大学学报(自然科学版), 2009, 32(4) |
| |
| 作者姓名： | 叶生 |
| |
| 作者单位： | 安徽交通职业技术学院,土木工程系,安徽,合肥,230051 |
| |
| 摘 要： | 强地面运动指标(IM)的选择对桥梁结构工程需求参数(EDP)的概率估计影响很大.文章分别采用峰值地面加速度PGA和峰值地面速度PGV作为IM,选择实际地震波并进行合理的调值,对一座RC桥墩进行非线性动力时程分析;结果表明,对于中等周期的桥墩结构,以PGA作为IM计算的EDP概率估计值离散度明显更大.因此应根据所分析结构的周期范围,选择不同的IM,通过合理的调值对EDP进行概率估计.
|
| 关 键 词： | 钢筋混凝土桥墩 峰值地面运动加速度 峰值地面运动速度 工程需求参数 概率地震需求模型 |
Influence of the selection of strong-motions intensity measures on the seismic demands for RC bridge columns |
| |
| YE Sheng. Influence of the selection of strong-motions intensity measures on the seismic demands for RC bridge columns[J]. Journal of Hefei University of Technology(Natural Science), 2009, 32(4) |
| |
| Authors: | YE Sheng |
| |
| Affiliation: | Dept.of Civil Engineering;Anhui Communication Vocational & Technical College;Hefei 230051;China |
| |
| Abstract: | There is a significant influence of the selection of earthquake strong-motions intensity measures on the probabilistic evaluation of engineering demand parameters(EDP).A series of nonlinear dynamic time history analyses using real accelerograms with reasonable scaling are made of a RC bridge column when peak ground acceleration(PGA) and peak ground velocity(PGV) are selected as intensity measures(IMs).The analytic results reveal that the probabilistic estimators of the EDPs which are gained using PGA as an ... |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
