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Assessment methods for historical mild steel structures

机译：历史低碳钢结构的评估方法

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摘要

Although many structures made of mild steel erected during the period between 1890 and 1940 arernstill under load after decades of service, there is usually no need to replace them. When assessingrnthese existing steel structures to be able to decide on necessary rehabilitation and reinforcementrnmeasures engineers requires information about the mechanical as well as the technological propertiesrnof the material. Additionally, it is essential to quantify the level of reliability against brittlernfailure. In contrast to conventional tests such as the impact test, fracture mechanics is suitable forrnappropriate assessment against brittle fracture of riveted or bolted structures made of old mild steel.
机译：尽管在1890年至1940年期间竖立的许多低碳钢结构在经过数十年的使用后仍处于负重状态，但通常无需更换它们。在评估这些现有钢结构以决定必要的修复和加固措施时，工程师需要有关材料的机械和技术特性的信息。此外，量化抗脆性失效的可靠性水平至关重要。与传统的测试（例如冲击测试）相比，断裂力学适合于适当地评估由旧低碳钢制成的铆接或螺栓连接结构的脆性断裂。

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