摘要
在有锚杆或基桩的底板温度应力计算中,锚杆(桩)对温度应力的影响尚无成熟的方法计算.本文在一定的假定下推导了锚杆(桩)的约束系数的计算式,并通过试验资料和工程实例作了验证,基本上可用于实际工程中的多排锚杆(桩)的约束系数及温度应力计算.此外,基本参数B中的锚杆(桩)抗力数R_x一般通过试验确定,也可用(25)式估算,其精度基本满足工程要求.
So far,there is no mature methods to calculate the influence of anchor rods(piles) upon thermal stress for the calculation of thermal stress in floors anchored with anchor rods (piles). In this paper, a set of formulae to calculate constraint factors of anchor rods(piles)has been derived on certain assumptions and verified by test data and case histories. The set of formulae can be basically used to calculate the constraint factors and thermal stress of multi-row anchor rods(piles)on actual projects. Furthermore籺he lateral resistance factor Rx of anchor rods (piles)in basic parameter B can be generally determined by tests or estimated with Formula 25,the accuracy of which can basically meet the requirements of any projects.
