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为了适应编制《钢筋轻骨料混凝土结构设计规程》的需要,同济大学和哈尔滨建筑工程学院分别作了三根无筋、十一根有筋的粉煤灰陶粒混凝土矩形截面梁和四根无筋、二十根有筋的浮石混凝土矩形截面梁受扭性能试验。本文在分析钢筋轻骨料混凝土梁的受扭性能及影响其抗扭强度的诸因素的基础上,提出了抗扭强度计算表达式,并对有关设计规定提出了建议。
In order to meet the needs of the preparation of “Design Regulations for Reinforced Lightweight Aggregate Concrete Structures”, Tongji University and Harbin Institute of Civil Engineering and Architecture made three non-reinforced, eleven reinforced fly ash ceramsite concrete rectangular cross-section beams and four no-rebars. Twisted performance tests of twenty-eight reinforced concrete sections with pumice stone. In this paper, based on the analysis of the torsional performance of reinforced concrete lightweight aggregate concrete beams and the factors that affect their torsional strength, the torsional strength calculation expressions are put forward, and the relevant design regulations are put forward.