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北京市的桥梁伸缩装置绝大部分均有不同程度的损坏,损坏原因是多方面的。为了总结经验教训,对桥梁伸缩装置不断改进和完善,愿和全国各地方市政工程单位互相商榷,共同探讨。北京市的北窑桥第一次采用了上海市政研究所设计、上海工程橡胶厂生产的橡胶板伸缩缝,通车半年后,在第一个夏季高温季节橡胶板完全损坏。但哈尔滨市道桥管理处在哈市康庄桥上使用此种橡胶板伸缩缝效果良好。当然两座桥的结构不同,伸缩量也有很大差别。这里将哈市道桥管理维修处采用这种伸缩的施工总结刊登于本刊,供大家学习、交流、探讨。
Most of the bridge expansion devices in Beijing have varying degrees of damage, and the causes of damage are manifold. In order to summarize the experience and lessons learned, the bridge expansion device is continuously improved and perfected, and is willing to discuss with the municipal engineering units from all over the country. For the first time, Beikiao Bridge in Beijing used the rubber plate expansion joints designed by Shanghai Municipal Institute of Engineering and Shanghai Engineering Rubber Factory. After six months of operation, rubber plates were completely damaged during the first summer high temperature season. However, Harbin Road, Bridge Management Office in Harbin Shuangzhuang bridge to use such rubber plate expansion joints good effect. Of course, the structure of the two bridges is different, there is a big difference between the amount of expansion. Hashimoto bridge management and maintenance here will use this retractable construction summary published in this publication for everyone to learn, exchange, explore.