劲性钢筋轻骨料混凝土梁斜截面承载力的计算

Research on calculating Formulas of Slanting Section Bearing Capacity of Steel Reinforced Lightweight Aggregate Conrete Csrlac Member

用极限状态法的计算理论并结合充满型钢试验中得出的试验参数,在考虑轻骨料砼与颈性钢筋的共同工作性能前提下,利用叠加法,建立了劲性钢筋轻骨料砼梁斜截面承载力的近似计算表达式。由于该近似计算表达式靠近现行的钢筋混凝土结构设计规范,易于被工程界所接受。该公式概念清晰,计算简便、适合手算,适用性较强。

In this paper, we adopt ultimate-balance theory to establish the calculating expression of slanting sec tion bearing capacity of SRLAC according to section static-force balancal condition and to obtain the experimental parameters in tests, considering concurrent work behavior of steel reinforcement( SR) and lightweight aggregate con crete (LAC).The formulas agree closely with the superimpose means of steel concrete structure design.They are easy to be accepted in engineering shield. Meanwhile, they are simple and convenient for calculation, the concepts in the formulas are clear.Or handwork can finish the calculation using the formulas.The applicability is much better.