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国外文献 > 1.轴承 > 3. 材料与制造 > 材料性能

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标 题： BEARING BEHAVIOR ANALYSIS OF CORRODED REINFORCED CONCRETE ROOF BOARDING
腐蚀钢筋混凝土屋板的承载性能分析
作 者： Yu-Qin Feng
Shu-Hua An
Lu Zhang
关键词： Reinforced concrete  [钢筋混凝土]
Corroded  [ 腐蚀]
Roof boarding  [ 屋顶板]
Capacity  [ 容量]
Deformation  [ 变形]
出版年： 2010
会议名： 11th International Symposium on Structural Engineering
第11届结构工程国际研讨会
届 次： 11th
摘 要： In a large industrial plant, by reliability testing of a large roof boarding which its steel protection layer has been shedding in last 40 years, mechanical properties analysis of corroded reinforced concrete member was be on include cohesiveness and capacity. The results as listed below: (1) the reinforcing bar stress of rib of slab which intact protective coating is larger than detached. (2) Before main reinforcement yield, the deformation of rib of slab which appears light concrete breakage is larger than heavy; after main reinforcement yield, the conclusion is contrary. (3) In the wake of reinforcing bar corroded, the strength and rigidity of roof slab decreased. (4) Steel corrosion impacts on bearing capacity of the roof slab significantly, and the more corrosion is, the greater reduction occurs. Above conclusion may become an assessment standard which used for judging member can use normally or not. At the same time, it offers some support for properties assessment.

在一家大型工业厂房中，对过去40年里钢保护层脱落的大型屋板进行了可靠性测试，对腐蚀后的钢筋混凝土构件进行了力学性能分析，包括粘结力和承载能力。结果如下：（1）保护涂层完整时，板肋的钢筋应力大于脱落时； （2）在主筋屈服前，出现轻微混凝土开裂的板肋变形大于严重情况下的变形。主筋屈服后，结论则相反。（3）钢筋腐蚀后，楼板的强度和刚度下降。（4）钢材腐蚀对楼板承载能力有显著影响，腐蚀越严重，性能下降越明显。上述结论可作为判断构件是否正常使用的一种评估标准，同时为性能评估提供一定支持。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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