COLLAPSING REASONS ANALYSIS OF THE WALL OF A RECTANGULAR RC CONTACT OXIDATION TANK
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摘要: 结合某钢筋混凝土矩形接触氧化池池壁倒塌实例,对某钢筋混凝土矩形接触氧化池从设计和施工两方面进行论述,分析其池壁倒塌原因。通过现场检测与设计复核可知:该水池施工质量良好,能满足设计要求,而设计方面存在严重不足。池壁水平向角隅处局部负弯矩和水池底端最大负弯矩均已超过截面抗力,在水侧压力作用下,相应部位出现塑性铰线,导致池壁四边支承条件发生变化,最终导致池壁形成可变机构而倒塌。Abstract: In order to analyze the collapsing reasons,the design and construction of a rectangular RC contact oxidation tank are discussed.According to on-site detecting and design recheck,the results can be obtained as follows: the construction quality is favorable,which can satisfy the design and acceptance requirements.But there is serious shortage in design aspect.The wall's local negative moment in horizontal direction and the maximum negative moment in bottom side are too large than the calculative resistance.Under the lateral pressure of water,the plastic hinge line will occur in corresponding position of the wall,so that the support condition is changed,which leads to the collapse of the wall.
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Key words:
- contact oxidation tank /
- tank wall /
- resistance /
- collapse /
- reason analysis
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