Which risk increases when rebar cage placement is eccentric within a pre-stressed concrete beam before tensioning?

💡 Explanation

When rebar cages are eccentrically placed, uneven stress distribution occurs during pre-stressing because tension applied is not aligned with the centroid, leading to higher stress concentrations in certain areas of the concrete. Therefore, premature cracking occurs, rather than increased ductility, reduced shear capacity, or higher bond strength, which rely on uniform stress distribution.

• Which risk increases in concrete columns when chlorides penetrate to the level of the reinforcing steel?
• Which consequence results when accumulator precharge degrades in aircraft hydraulic systems?
• Which outcome occurs on a CNC mill when servo commands demand conflicting actuator movements?
• Which outcome occurs when a high-voltage circuit breaker attempts to interrupt a capacitive charging current?
• Which outcome occurs when transient overvoltage affects a residential photovoltaic inverter circuit?
• Which outcome occurs when a steel I-beam supporting a bridge experiences cyclic loading near its fatigue limit?