温度低下を伴うアスファルト防水層の粘弾性解析 : 下地ムーブメントによって生ずる積層防水層の歪度解析(その4)

概要

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Stresses and strains are induced in the built-up roof membranes by the joint movements in the substrates when temperature varies. In this paper, the behavior of built-up roof membranes due to a temperature decline were investigated introducing the visco-elasticity and temperature susceptibility of a roofing felt and a bonding asphalt construction built-up roof membranes. The membrane was replaced by the equivalent element model which consists of many tensile elements and shearing elements. Assuming superimpose principle, so that the relaxing stresses in the elements induced at some temperature were not affected by the later decline of temperature and kept the visco-elastic properties at that temperature, the moduli of elements were calculated based on the temperature, strain and stress histories. The stresses and strains in all elements were calculated step by step by the simulation method. The validity of this visco-elastic analysis method was discussed, comparing tensile loads observed in the experiment with the calculated ones. As an example of application, the behavior of bulit-up roof membranes due to an observed temperature decline were estimated.
社団法人日本建築学会の論文
1985-01-30