Which effect limits the flexural capacity of a reinforced concrete beam with insufficient stirrups under load?

💡 Explanation

When a R/C beam lacks adequate stirrups, diagonal tension cracks propagate due to insufficient shear reinforcement, causing a link in the path for the formation of diagonal compression struts, leading to premature shear failure near the supports. So premature shear failure results, rather than spalling, buckling, or deflection which involve different reinforcement ratios.

• Which outcome occurs when an underwater hydraulic claw actuator experiences rapid directional changes?
• If a robotic arm is programmed for a specific trajectory but deviates due to slippage, which mechanism degrades positional accuracy?
• Which risk increases when a hydraulic actuator approaches its stroke limit without proper cushioning?
• Which risk increases when a hydraulic actuator rapidly cycles with insufficient pre-charge in the accumulator?
• Inside a refrigeration evaporator, which outcome arises due to excessive superheat?
• Which outcome occurs when resonant frequency matching causes extreme current in a series RLC circuit under sustained high voltage?