The restraint of imposed strains in edge-restrained members was investigated. In particular, the influence of vertical steel reinforcement between the restrained member (wall) and the restraining member (base) on the mechanism of restraint development was experimentally examined. Real-scale reinforced concrete (RC) walls on RC bases were constructed and the investigation analysed why previous studies, which have mostly utilised steel members to restrain the imposed strain, are inappropriate for gaining an understanding of edge restraint as they fail to reflect the heat transfer between the wall and the base. The results of this study revealed that the degree of restraint increased in the presence of vertical steel reinforcement from 0·37 to 0·72. It was also found that restraint increased over time due to the steel reinforcement and decreased in its absence. A finite-element analysis of the walls was also conducted to highlight the significance of correctly incorporating real-time boundary conditions.

中文翻译：

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限制在钢筋混凝土墙底部的荷载作用

研究了边缘约束构件中施加应变的约束。特别地，通过实验研究了约束构件（壁）和约束构件（基部）之间的竖向钢筋对约束发生机理的影响。在RC基座上建造了真实比例的钢筋混凝土（RC）墙，并调查了为什么以前的研究主要利用钢构件来限制施加的应变，但由于它们不能反映热量，因此不适合于理解边缘约束，因此这些研究不适合在墙壁和底座之间转移。这项研究的结果表明，在存在垂直钢筋的情况下，约束程度从0·37增加到0·72。还发现，由于钢筋的作用，约束随着时间的推移而增加，而在不存在的情况下，约束作用减小。还对墙进行了有限元分析，以突出正确整合实时边界条件的重要性。