坝内埋管结构的极限状态与设计方法研究

Study on the Design Method and Limit State of Buried Pipeline Structure in Dam

针对以钢筋屈服为标志的承载力极限状态和以此极限状态为依据的配筋计算方法不能完全反映联合承载坝内埋管结构的实际的情况,提出了以管周混凝土拉应变值达到埋管结构临界应变极限值时的状态为埋管结构的极限状态,并据此建立了钢衬钢筋混凝土坝内埋管结构的设计计算方法,为同类结构的工程设计提供参考。

The steel bar computing method based on the limit sate at which the steel bar yields can＇t completely reflect the fact that the pipeline in dam and the concrete surrounding the pipeline is sharing the load. The authors think that the state is the structural limit state that the tensile strain of concrete surrounding the pipeline arrive at the critical limit value the authors advise. Based on the limit state, the authors offer a new method of designing steel-lined Reinforced Concrete pipeline structure in dam.