整体大面积筏板基础沉降特点及筏板弯矩计算
发布时间：2019-01-28 21:15
【摘要】：在相似地质条件下,与体量相似、荷载大小相近的常规基础形式的高层建筑相比,大底盘高层建筑平均沉降量大幅减少;竣工后的后期沉降占总沉降量比例小,一般不超过20%;沉降稳定时间短,通常竣工后1年左右沉降即达到稳定。当高层建筑挠曲值不超过0.2‰,且筏板的抗裂度大于或等于2时,高层下筏板可仅考虑局部弯矩作用,整体弯矩可通过构造措施处理;高层建筑挠曲值超过0.2‰,或筏板的抗裂度小于2时,筏板须考虑整体弯矩作用。
[Abstract]:Under similar geological conditions, the average settlement of tall buildings with large chassis is significantly reduced compared with high-rise buildings with similar body mass and similar loads. After completion, the proportion of settlement to the total settlement is small, generally not more than 20, and the settling time is short, and usually the settlement is stable about one year after completion. When the flexural value of high-rise building is not more than 0.2 鈥，
本文编号：2417323
[Abstract]:Under similar geological conditions, the average settlement of tall buildings with large chassis is significantly reduced compared with high-rise buildings with similar body mass and similar loads. After completion, the proportion of settlement to the total settlement is small, generally not more than 20, and the settling time is short, and usually the settlement is stable about one year after completion. When the flexural value of high-rise building is not more than 0.2 鈥，
本文编号：2417323
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