影响受弯构件正截面承载力的因素分析

Analysis on the Influencing Factors of Cross-section Bearing Capacity of Flexural Members

在推导公式和计算的基础上,以钢筋混凝土结构设计理论为基础,讨论了截面尺寸、混凝土强度等级、钢筋强度等级、钢筋弹性模量、配筋率、混凝土极限压应变、保护层厚度等因素对钢筋混凝土受弯构件正截面承载力的影响,对设计及其施工中对于这些因素的控制提出了一些建议,从而保证混凝土结构的安全性。

Based on calculation formula and design theory of the reinforced concrete structures,this paper discussed several influencing factors of cross section bearing capacity of flexural members,such as section size,concrete strength grade,steel strength grade,reinforced elastic modulus,reinforcement ratio,concrete ultimate compressive strain,and the protection of layer thickness.Furthemore,some suggestion on controlling these factors in design and construction are put forward to ensure the safety of concrete structures.