Why raft foundations paired with heterogeneous column loads demand geotech‑reviewed differential settlement limits?
Choices
- (A) Uniform bearing pressure solves all curvature issues blindly
- (B) Differential settlement drives secondary moments in framing that must remain within allowable tilt and cracking budgets
- (C) Random fudge factors eliminate soil springs
- (D) Contractor preference alone dictates tilt
Correct answer: (B)
Differential settlement drives secondary moments in framing that must remain within allowable tilt and cracking budgets
Explanation
Mat tilt couples into superstructure through column shortening differences.