原文传递
Reliability of Tower and Tower-Line Systems under Spatiotemporally Varying Wind or Earthquake Loads
| 题名： | Reliability of Tower and Tower-Line Systems under Spatiotemporally Varying Wind or Earthquake Loads |
| 其他题名： | Aboshosha,H.,Elawady,A.,El Ansary,A.,and El Damatty,A.(2016)."Review on dynamic and quasi-static buffeting response of transmission lines under synoptic and non-synoptic winds."Eng.Struct.,112,23-46. |
| 正文语种： | 英文 |
| 作者： | S. C. Yang |
| 关键词： | Electrical transmission towers;Nonlinear structural analysis;Capacity curve;Wind;Earthquake;Structural safety and reliability |
| 摘要： | Towers or tower-line systems within a power network can experience damages under rare earthquakes or strong winds. The estimation of the failure probability of a tower-line system is rarely addressed for scenario wind or earthquake events. One of the difficulties to evaluate the reliability of a tower or tower-line system is associated with the computationally demanding task of assessing the nonlinear inelastic dynamic responses or capacity curves of the towers under spatiotemporally varying wind or earthquake loads. An assessment of the capacity curve of a tower within the tower-line system (i.e., considering tower-wire interaction) under the spatiotemporally varying wind or earthquake loads is presented based on the incremental dynamic analysis. The estimated capacity curves are compared with those obtained using the nonlinear static pushover analysis for a single tower. The comparison indicates that the use of the nonlinear static pushover analysis could lead to useful results, although in such a case the uncertainty in the capacity curve caused by the record-to-record variability of the spatiotemporally varying loads cannot be captured. Moreover, a simple procedure to evaluate the reliability of a tower-line system for scenario wind or earthquake events is proposed by considering the spatial correlation of winds or ground motion measures. The results emphasize that the consideration of the spatial correlation of natural hazards could be important to estimate the failure probability of a tower-line system. |
| 出版年： | 2017 |
| 论文唯一标识： | P-26Y2017V143N10008 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001835 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 143 |
| 期： | 10 |
| 页码： | 87-99 |
相关文献
- Analytical Approach to Characterize Tornado-Induced Loads on Lattice Structures
- Research on Collapse Mechanism and Failure Criterion of Superlarge Cooling Tower under Downburst Effect
- Fatigue Life Fragilities and Performance-Based Design of Wind Turbine Tower Base Connections
- Field Measurements of Dynamic Properties of a Supertall Building during Construction of an Adjacent Supertall Building
- Suction and Action Mechanisms of Flow Field in a Super-Large Cooling Tower in Typhoon Conditions
- Stability and Reinforcement Analysis of Superlarge Exhaust Cooling Towers Based on a Wind Tunnel Test
检索历史
应用推荐
