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首页> 外文期刊>Journal of Infrastructure Systems >Full-Scale Experimental Determination of Concrete Pipe Joint Behavior and Its Modeling
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Full-Scale Experimental Determination of Concrete Pipe Joint Behavior and Its Modeling

机译：混凝土管接头行为的全尺寸试验确定与建模

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摘要

As a consequence of unequal loading or variable soil conditions, longitudinal bending of buried gravity pipes leads to circumferential pipe cracking or joint opening, which results in groundwater infiltration or leakage. Since joints considerably affect longitudinal pipe behavior, an advanced investigation of this aspect requires knowledge of the joint mechanical properties and particularly of its stiffness. An experimental apparatus has been developed in order to determine the joint behavior under various loading conditions. Results of compression, shear, and bending tests are given in terms of force-displacement plots. A simple rheological bilinear model of the joint is elaborated from compression and shear tests and then validated on the experimental bending results. In general a good agreement is found between model and experimental output. This simple model will be implemented in numerical simulations of buried pipe behavior.
机译：由于负载不均或土壤条件变化，埋入重力管的纵向弯曲会导致圆周管破裂或接头开裂，从而导致地下水渗入或渗漏。由于接头会严重影响纵向管道性能，因此对此方面的深入研究需要了解接头的机械性能，尤其是其刚度。为了确定各种载荷条件下的接头性能，已经开发了一种实验装置。压缩，剪切和弯曲测试的结果以力-位移图给出。通过压缩和剪切试验建立了一个简单的关节流变双线性模型，然后在实验弯曲结果上进行了验证。通常，在模型和实验输出之间找到了很好的协议。这个简单的模型将在地下管道行为的数值模拟中实现。

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