| 引用本文: | 孔德文,范峰,支旭东.摩擦摆支座在K8型单层球面网壳结构中的隔震研究[J].哈尔滨工业大学学报,2015,47(12):9.DOI:10.11918/j.issn.0367-6234.2015.12.002 |
| KONG Dewen,FAN Feng,ZHI Xudong.Isolation research of friction pendulum bearings in K8 single-layer reticulated domes[J].Journal of Harbin Institute of Technology,2015,47(12):9.DOI:10.11918/j.issn.0367-6234.2015.12.002 |
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| 摘要: |
| 为获得应用摩擦摆支座（FPB）单层球面网壳结构的抗震性能,将摩擦摆支座精细化有限元模型应用到跨度为80 m的K8型单层球面网壳结构中,对两种支承形式的网壳结构施加相同的地震波.依据结构杆件和节点动力响应对摩擦摆支座的隔震效果进行分析,讨论了在水平和竖向地震动时摩擦摆支座的摩擦系数和曲率半径对单层球面网壳地震响应的影响规律.结果表明:随着地震动强度的增强,摩擦摆支座的最优摩擦系数也随之增加；摩擦摆支座曲率半径越大网壳结构的地震响应越小.在上述研究基础上,对单层球面网壳结构如何选择摩擦摆支座进行了一些讨论. |
| 关键词: 单层球面网壳 摩擦摆支座 隔震 最优摩擦系数 曲率半径 |
| DOI：10.11918/j.issn.0367-6234.2015.12.002 |
| 分类号:TU311.3 |
| 基金项目:国家自然科学基金重大计划集成项目(91315301);国家自然科学基金面上项目(51278152);黑龙江省杰出青年科学基金(JQ2010-10). |
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| Isolation research of friction pendulum bearings in K8 single-layer reticulated domes |
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KONG Dewen1,2, FAN Feng1,2, ZHI Xudong1,2
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(1.Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, 150090 Harbin, China;2.School of Civil Engineering, Harbin Institute of Technology, 150090 Harbin, China)
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| Abstract: |
| To obtain the seismic performance of single-layer reticulated domes with friction pendulum bearings (FPB), finite element refined models of FPB were applied to 80 m K8 single-layer reticulated domes FE Model. The same earthquake waves were exerted to single-layer reticulated shells with hinge support or FPB. The isolation effect of FPBs was analyzed in two main aspects including the dynamic responses of bars and nodes of reticulated domes, and the impact of FPB parameters on the seismic response of single layer latticed shell were discussed. The results indicate that the optimal friction coefficient of FPB increases with the increase of the ground motion intensity. The bigger curvature radius of FPB, the smaller seismic responses of reticulated shell structure will be. On the basis of the above research, this paper gave some discussion how friction pendulum bearings were selected for single-layer reticulated domes. |
| Key words: single-layer reticulated dome friction pendulum bearing (FPB) isolation optimal friction coefficient curvature radius |
