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FEM을 통한 온도팽창과 거조수축으로 인한 콘크리트포장 거동 연구
이계삼 陸軍士官學校 1999 한국군사학논집 Vol.55 No.-
Since horizontal movements due to shrinkage and thermal gradients in concrete pavements involve no actual load, the stresses induced will be those due to closing of the pavement joints and subbase friction. Consequently, complete derivations of stiffness matrix and equivalent nodal loads due to planar effects on the concrete pavements were throughly undertaken by using the finite rectangular elements with two degrees of freedom at each node. The numerical example shows that the tensile stress induced in a pavement due to concrete shrinkage might be negligible except at the long slab and the high coefficient of frictions. However, the stresses in conjunction with principal traffic loads might cause cracking problems.