test failure load

In this paper, the authors make an analysis of the relation of the test load and the failure risk and a model of risk analysis of bridge load test is proposed based on structures reliability.

在可靠度理论的基础上，对桥梁荷载试验测试荷载取值与试验风险的关系进行了分析，建立了测试风险分析模型。

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Through the model test on three groups of new and old plain concrete underpinned columns, the shear strain translation rule of the concrete surface, the crack load and the failure load were measured.

通过3组新老素混凝土托换柱模型试验，测得模型表面混凝土的剪应变变化规律、开裂载荷、破坏载荷。

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Firstly, the bending load-deflection relationship and failure modes of the test specimen were obtained by the four-point bending test.

首先进行静态四点弯曲实验，得到实验试件在静态弯曲载荷作用下弯曲载荷与加载点挠度的关系以及试件在静载作用下的破坏模式。

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Make the anchor ground-based test, study the impact of inner press on the allowable pull-out load of anchor and the resistance, make seal test and working stability test and failure test.

进行地面试验，研究内注压力对锚杆许用拉拔载荷和抗剪切力的影响，以及锚杆密封性、承载稳定性试验和失效试验。

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The fatigue cracks are the normal failure in pressure container to bear alternative load. The measurement and test of cracks on 200 m~ 3 spherical oxygen tank are introduced, the reason analyzed, some counter measures proposed.

疲劳裂纹是承受交变载荷压力容器常见的失效形式，对邢台钢铁公司200m3氧气球罐的裂纹检验情况进行了介绍，分析了氧气球罐疲劳失效的原因，并提出了相应对策。

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