In the paper, a shear spring model is proposed to simulate the constraint of the soil. Based on this model, the theoretic formula of pile head stiffness is derived.
本文提出的用模拟桩周土约束的剪切弹簧模型来计算单桩刚度，并推导出了相应的理论计算公式。
Using spring to model the shear connection between concrete slab and steel girders shows that the connection is comparatively strong and can be treated as full restrained.
用弹簧单元模拟桥面板与钢梁的联结，结果表明该桥混凝土桥面板与钢梁的联结比较紧密，二者的联结可以视为固结。
A deep beam model with spring bearing is given, based on the analysis of middle frame of frame and shear wall structure ground floor, which is sensitivity to floor rigidity.
本文从对楼板刚性反应最敏感的构件(即框剪结构的底层中间框架)按刚、弹性计算的剪力误差值的分析入手，建立了一个由弹簧支承的水平深梁的模型。
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