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| 桩-土-结构相互作用对高层建筑顺风向风振响应的影响 | |
| 引用本文： | 范存新,陈镕,薛松涛.桩-土-结构相互作用对高层建筑顺风向风振响应的影响[J].岩石力学与工程学报,2004,23(12):2078-2084. |
| 作者姓名： | 范存新 陈镕 薛松涛 |
| 作者单位： | 1. 苏州科技学院土木工程系,苏州,215011 2. 同济大学结构与防灾研究所,上海,200092 3. 同济大学结构与防灾研究所,上海,200092;日本近畿大学理工学部建筑学科,大阪,日本 |
| 基金项目： | 国家杰出青年科学基金(59925820)，苏州市科技项目(SZ02013)资助课题。 |
| 摘 要： | 推导了高层建筑在脉动风荷载作用下考虑桩-土-结构相互作用时其顺风向风振响应的计算公式，通过算例说明桩-土-结构相互作用对结构顺风向风振响应有明显的影响。一般而言，在结构的风振响应分析中，考虑相互作用并不总是安全的，在土中阻尼较小时，考虑相互作用后，结构弹性位移有可能会大于刚性地基的弹性位移，而结构总响应的幅值总是大于刚性基础时响应的幅值，结构越是高柔，该现象越为明显，考虑了桩-土-结构相互作用后有可能增加结构风振时的不舒适度。因此，在高层建筑的风振响应分析中应当综合考虑桩-土-结构相互作用的影响。 |
| 关 键 词： | 土木工程 桩-土-结构相互作用 风振响应 高层建筑 |
| 文章编号： | 1000-6915(2004)12-2078-07 |
| 收稿时间： | 2003-4-3 |
| 修稿时间： | 2003-6-10 |
EFFECT OF PILE-SOIL-STRUCTURE INTERACTION ON DOWNWIND RESPONSE OF HIGHRISE BUILDING TO WIND-INDUCED VIBRATION |
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| Fan Cunxin,Chen Rong,Xue Songtao.EFFECT OF PILE-SOIL-STRUCTURE INTERACTION ON DOWNWIND RESPONSE OF HIGHRISE BUILDING TO WIND-INDUCED VIBRATION[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(12):2078-2084. | |
| Authors: | Fan Cunxin Chen Rong Xue Songtao |
| Affiliation: | Fan Cunxin1,Chen Rong2,Xue Songtao2,3 |
| Abstract: | Considering the pile-soil-structure interaction (PSSI),the formula of the downwind displacement response is derived for highrise building subjected to fluctuating wind load. Numerical examples show that PSSI has evident effect on downwind displacement response of the building. Generally speaking,it is not always conservative to consider PSSI in the analysis of downwind responses of tall building. When the damping in the soil is small,the elastic relative displacement response of the structure considering the PSSI may be greater than that without considering the PSSI,and the total displacement response of the structure considering PSSI is always greater than that without considering PSSI,which may increase the uncomfortableness of the structure. This phenomenon becomes more significant if the building is higher. So more attention should be paid to the effect of the PSSI in the design of tall building. |
| Keywords: | civil engineering pile-soil-structure interaction wind-induced vibration highrise building |
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