JPKIc 结构盘注原黑 Chapter 4 Shear strenth of rc beams T写
Chapter 4 Shear strength of RC beams
JPKIC 结构设计原理 Teprimeipledtstmtcturgdesign The main content of this chapter: Oblique cross-section flexural members of the mechanical characteristics and failure modes. OOblique section of bending members the main factor for shear strength. Flexural oblique shear strength formula for conditions. Such a high degree of web reinforcement beams of the preliminary design steps. O Resisting moment mapping. Check all of bearing capacity and structural requirements OConstruction oblique shear strength calculations
⚫ Oblique cross-section flexural members of the mechanical characteristics and failure modes. ⚫ Oblique section of bending members the main factor for shear strength. Flexural oblique shear strength formula for conditions. ⚫ Such a high degree of web reinforcement beams of the preliminary design steps. ⚫ Resisting moment mapping. Check all of bearing capacity and structural requirements. ⚫ Construction oblique shear strength calculations. The main content of this chapter:
JPKIC 箱构其原黑 Bending moment M and shear force under the action of Q: Calculation of flexural strength-the main bar Bending moment M and shear force under the action of Q: blique sctionstrengtcation-web reinforcement Web reinforcement:stirrups and bent(oblique)reinforced Beams without web reinforcement:only the reinforced longitudinal beams without web reinforcement design
Calculation of flexural strength - the main bar Oblique section strength calculation - web reinforcement Asb Asv , Bending moment M and shear force under the action of Q: As As , Web reinforcement: stirrups and bent (oblique) reinforced Bending moment M and shear force under the action of Q: Beams without web reinforcement: only the reinforced longitudinal beams without web reinforcement design
JPKIC 结构设计原理 Teprimeipledtstmtcturgdesign 4.1 oblique section by bending the force characteristics and failure modes In order to facilitate the characteristics of shear failure,often based on beams without web reinforcement,and then extended by the beams without web reinforcement to the beams with web reinforcement
In order to facilitate the characteristics of shear failure, often based on beams without web reinforcement, and then extended by the beams without web reinforcement to the beams with web reinforcement § 4.1 oblique section by bending the force characteristics and failure modes
4.1.1 Beams without Web Reinforcement inclined JPKIc 结构设计原理 cracks the stress state before and after The principle of structure design Reinforced concrete beams,symmetrical concentrated loads,CD segment called the pure bending section;AC segment and DB shear curve section of the curved section of shear zone,due to the presence of M and V have normal stress and shear stress Myo blo In o ,T of working together,produce the principal tensile stress and compressive stress tp cp M(Ignore gravity) Direction Pa arctg
P P A C D B a Pa a P P V M (Ignore gravity) Reinforced concrete beams, symmetrical concentrated loads, CD segment called the pure bending section; AC segment and DB shear curve section of the curved section of shear zone, due to the presence of M and V have normal stress and shear stress 0 0 I My = 0 0 bI VS = In , of working together, produce the principal tensile stress and compressive stress 2 2 tp 2 4 = + + 2 2 cp 2 4 = − + = − 2 2 1 arctg Direction 4.1.1 Beams without Web Reinforcement inclined cracks the stress state before and after