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为了配合××线施工中修建高桥墩采用“滑动钢模板”施工的先进技术,我们设计了“厚壁空心高墩”通用图。在通用图中,为适应滑动钢模板起吊设备的需要,于顶帽中心留有一个φ110厘米的圆孔(运营中也作为检查进人孔)。由于以往兄弟单位的设计和试验都是实心墩帽,对空心墩顶帽的计算方法及应力状态心中无数,因此,在天津大学水利系和铁三院二总队领导的支持下,我们共同对空心墩顶帽作了光弹性法试验,对顶帽边缘应力状态取得了初步认识,现介绍如下。一、模型比尺的选定根据模型材料、制作条件、材料光弹性特
In order to cooperate with the advanced technology of “sliding steel formwork” for the construction of Gaoqiao pier in the construction of XX line, we designed the general plan of “thick-walled hollow high pier”. In the general drawing, a φ110 cm round hole is provided in the center of the top cap (also in operation as an inspection access hole) to accommodate the sliding steel template hoisting equipment. Due to the fact that the design and test of the former brothers units were all solid pier caps, there are countless ways to calculate the hollow pier top caps and the stress state. Therefore, with the support of the leaders of the Second Corps of Tianjin University’s Water Conservancy Department and the Third Hospital of Iron Squadron, Pier top hat made of photoelastic test, top hat edge stress state has made a preliminary understanding, are introduced below. First, the choice of model scale According to the model material, production conditions, material photoelastic special