Some measures of setting late poured band, optimizing mix proportion of concrete and controlling raw material quality can assure no cracks in circle beamfoundation.
通过采取设置后浇带，优化混凝土配合比，控制原材料质量等措施，保证环梁基础不产生裂缝。
2
A method of topology optimization of grillage structure with stress constraints is presented and applied to analyze the reinforced beam of raft foundation.
对筏型基础的加强梁分布进行拓扑优化分析，提出一种应力约束下的格栅结构的拓扑优化方法。
3
Ultimate strength design is not required and the reinforcement can be determined only on basis of allowable crack width in design of beam on foundation.