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洛溪大桥为我国目前最大的一座连续刚构,主跨180米,主墩采用双柱式,上部箱梁采用悬臂浇筑施工,最大悬臂施工长度达88.5米。因此,在最大悬臂施工时的安全度,特别是主墩在风载及施工荷载作用下的安全度,已由于某些原因,受到了工程界的关注,为此,现将我们对此问题的分析和看法提供读者讨论。下面将从施工荷载及施工荷载与风载组合二个方面进行分析如下: 一、主墩在施工荷载作用下的安全度从可能出现的最不利受力图式考虑,取
Luoxi Bridge is the largest continuous rigid frame currently in our country with a main span of 180 meters. The main pier is a double column type and the cantilever is used for the upper box girder. The maximum cantilever construction length is 88.5 meters. Therefore, the safety of the maximum cantilever construction, especially the safety of the main pier under wind loads and construction loads, has drawn the attention of the engineering community for some reason. For this reason, Analysis and opinion provide reader discussion. The following will be from the construction load and construction load and wind load combination of two aspects are as follows: First, the main pier in the construction load under the security from the most likely to be the most adverse force pattern to consider