In the case of panel wall subjected to horizontal loads at right angles to the plane of the wall, with the mortar not leaner than Ml type, tensile stress in bending in the vertical direction may be allowed to the extent of _______________?
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Answer: C. 1.0 kg/cm2
Explanation
Panel walls subjected to out-of-plane horizontal loads experience vertical bending moments. When mortar strength meets or exceeds M1 specifications, limited vertical bending tensile stresses are permitted. Building standards set the allowable vertical bending tensile stress limit at one point zero kilograms per square centimeter. Panel walls act as non-loadbearing or load-bearing partitions resisting wind pressures perpendicular to their plane. Unreinforced masonry possesses limited tensile strength that must be carefully accounted for in design. Standard allowable stress tables provide safe limits for flexural tension in masonry panel walls.
Engineers check out-of-plane wind stability to prevent panel wall cracking or collapse in tall buildings. Proper mortar specification ensures walls can resist moderate horizontal wind loads safely. Adhering to bending stress limits maintains weather tightness and structural integrity in exterior partitions. Option A suggests zero point four kilograms per square centimeter, which is overly conservative. Option B proposes zero point seven kilograms per square centimeter, falling short of the M1 mortar allowance. Option D specifies one point two kilograms per square centimeter, exceeding standard code limits for panel walls.
- Subject
- Engineering
- Category
- Civil Engineering
- Topic
- —
- Difficulty
- medium
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