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本刊1983年第1期刊载王心方同志的《使用橡胶支座的多跨简支梁桥桥面分段连接的水平力计算》,1983年第2期刊载李志清同志的《钢板伸缩缝在桥梁上的实验与应用》,现再摘刊吴在辉同志的《简支梁连续板桥的研究》这几篇文章关于简支梁连续桥面的设计与做法提出不同的方法。钢筋混凝土桥的接缝问题是广大桥梁工作者所关心的问题,简支梁连续板桥是改善桥梁接缝的一种比较好的办法。为了改进设计和施工工艺,我们先后选登一些有关文章供大家参考。有关设计和施工上的一些问题希望大家争鸣讨论。例如:(1)连接筋受力分析究竟怎样计算为宜,(2)连接钢筋中段是否需要外包聚乙烯胶带?(3)伸缩缝作法?位置究竟设在桥台处还是桥墩处合适?(4)橡胶支座上是否必须粘贴一层聚四氟乙烯薄板等,(5)墩台水平力如何计算等。
Journal Issue No. 1, 1983, published by Comrade Wang Xinbang’s “use of rubber bearing multi-span simply supported beam bridge deck connection calculation of the horizontal force”, No. 2, 1983, published Comrade Li Zhiqing’s “steel expansion joints on the bridge Now, I will give a different approach to the design and practice of the continuous deck of simply supported beam with reference to Comrade Wu Zaihui’s ”Study of Continuous Beam Bridge." The problem of the seams of reinforced concrete bridges is a concern of bridge workers. Simply supported continuous slab bridges are a good way to improve the joint of bridges. In order to improve the design and construction process, we have selected some articles for your reference. Some questions about design and construction are expected to be contested. For example: (1) how to calculate the stress analysis of the connecting bars is appropriate, (2) whether it is necessary to outsource the polyethylene tape in the middle section of the connecting bars (3) how to make the expansion joints at the abutment or the abutment ) Rubber bearings must be affixed to a layer of PTFE sheet, etc. (5) How to calculate the level of piers and so on.