JIPKIC 结构设计原理 RC structure as an example The principle of structure design Fracture stage as a basis Without consideration of concrete tensile strength Equavilent rectangular stress block for computation bx h A Schematic of fracture stage of RC element b x h As 0 h s As f   c c f bx  2 Schematic of fracture stage of RC element RC structure as an example ⚫ Fracture stage as a basis ⚫Without consideration of concrete tensile strength ⚫Equavilent rectangular stress block for computation