华中科技大学学报（自然科学版）2017，Vol.45Issue(11)：51-56,6.DOI:10.13245/j.hust.171110
小滑动支承对跨活断层明钢管受力的影响
Effect of load transferring in poor sliding-condition supports on bearing of fault-crossing exposed steel penstocks
摘要
Abstract
A representative fault-crossing exposed steel penstock (FCESP) in water diversion project was modeled to explain load transferring mechanism in poor sliding-condition (PSC) zones .Two finite element models were developed .In one model ,PSC zones were distinguished by hinge supports ,and in the other one pier with membranes between steel and concrete were used .The results show that , compared with hinge supports ,piers with membranes can help reduce expansion joints compensations and homogenize stress within steel penstock cross section .The expansion joints compensations and sliding behavior on sliding supports are dependent on friction coefficient between the penstock and the membrane markedly .However ,the stress status would not change .Therefore ,pier with membranes between steel and concrete can be adopted as PSC support more reasonably and feasibly than hinge support .The friction coefficient between steel and membrane should be recognized as an important de-sign parameter ,and the expansion joints compensation and sliding distance on sliding supports need to be focused to determine it .关键词
明钢管/活断层/铰支座/垫层/摩擦系数Key words
exposed steel penstock/fault movement/hinge support/membrane/friction coefficient分类
建筑与水利引用本文复制引用
胡蕾,石长征,伍鹤皋,朱国金..小滑动支承对跨活断层明钢管受力的影响[J].华中科技大学学报（自然科学版）,2017,45(11):51-56,6.基金项目
国家自然科学基金资助项目(51609020 ,51679013 ,51409194) （51609020 ,51679013 ,51409194）
中央级公益性科研院所基本科研业务费资助项目(CKSF2017067/GC ,CKSF2016015/GC). （CKSF2017067/GC ,CKSF2016015/GC）
