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在以往研究的基础上,结合实际工程设计,建立了钢筋混凝土闸墩仿真模型,对钢筋混凝土间墩的弧门支座进行了试验研究和理论分析,重点探讨在单侧弧门推力作用时弧门支座的受力性能,特别是支座位置对支座受力性能的影响等.通过试验研究和理论分析,得出了在弧门推力作用下支座附近闸墩体的混凝土应力(应变)衰减规律,并建立了闸墩支座在单侧受弧门推力作用时的混凝土局部抗裂设计和局部受拉承载力设计计算公式.本文的成果已应用于王甫洲工程的设计,并已编入《水工混凝土结构设计规范》(报批稿)的相应条文.
Based on the previous studies and the actual engineering design, the simulation model of reinforced concrete pier was established. The experimental research and theoretical analysis of the arc-gate support between the reinforced concrete piers were carried out. The arc The bearing capacity of the door, especially the impact of bearing position on the bearing capacity. Through the experimental research and theoretical analysis, the law of attenuation of concrete stress (strain) around the abutment near the abutment under the action of arc-gate thrust was obtained, and the local concrete structure of the abutment abutment Crack resistance design and local tension bearing capacity design and calculation formula. The results of this paper have been applied to the design of Wangfuzhou Project and have been incorporated into the corresponding provisions of “Code for Design of Hydraulic Concrete Structures” (submitted for approval).