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Mr. Gordon Rose's dilemma in establishing the capacity of load-bearing walls of old buildings to the satisfaction of Authority (April) has drawn further comment; Mr. Stephen Revesz (F) considers it is timely to air this issue and offers practical, commonsense suggestions drawn from experience. He writes: We have had to deal with similar problems when converting existing buildings. In most cases the floors were found to be just adequate for domestic loading (1.5 kN/m2) but had been in use as offices for a considerable number of years. The owners had controlled storage of papers or office machinery to avoid overloading by commonsense. Verulam
很快,英国强化砖砌设计将从允许的压力方法转变为类似于钢筋混凝土已经完成的极限状态方法。对于增强砖砌梁的极限状态剪切设计,必须定义最终剪切应力值作为主剪切参数的函数。假设钢筋混凝土梁的情况类似的主要参数是剪切跨度与有效深度A / D的比率,以及拉伸增强件P的百分比。由于对已发表的证据进行了审查,提供了对A / D和P对加强砖块强度影响的系统数据,作者进行了一种涉及A / D和P的系统实验研究。结果表明,与钢筋混凝土梁的情况相似的降低A / D值,但是与钢筋混凝土梁的情况相比,对钢筋混凝土梁的情况相比,P对极限剪切应力的虚拟独立性的显着增加。G.T.Suter和A.W.亨德里
M. R. Horne教授(F):木博士通过本文的出版物对结构工程师提供了巨大的服务。就大多数工程师而言,有效长度的概念已经过于松动,而且木材博士表明它有多强大和精确的工具。它的使用对于无摇摆框架中的柱设计至关重要,并且与迄今为止的实证应用相反,对这种框架的准确开发必须肯定为任何未来的设计程序构成基础。