| 25mm厚钢板产生层间撕裂的原因和防治 |
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| 引用本文： | 周红波,赵珍云,许巨川.25mm厚钢板产生层间撕裂的原因和防治[J].建筑技术开发,2003(2). |
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| 作者姓名： | 周红波 赵珍云 许巨川 |
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| 作者单位： | 上海建筑科学研究院建设工程咨询监理部司
(周红波)，上海冶金设计院
(赵珍云)，上海磁悬浮交通发展有限公司(许巨川) |
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| 摘 要： | 层间撕裂并非是厚板独有的质量问题 ,结合工程实例 ,分析 2 5mm厚低合金钢板产生层间撕裂的原因。通过对钢材的超声波探伤检测、化学成分分析和Z向性能检测 ,指出层间撕裂主要与节点设计不当和钢材内非金属夹杂物偏析、分层有关 ,并提出了预防措施。对产生裂纹的构件视严重情况提出了不同的修补处理方法
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| 关 键 词： | 层间撕裂 钢板分层 Z向应力 预防措施 修补 |
REASONS FOR LAMINATED TEARING OF TWENTY FIVE MILLIMETER THICK STEEL PLATE AND TREATMENT |
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| Zhou Hong\|bo\ Zhao Zhen\|yun\ Xu Ju\|chuan.REASONS FOR LAMINATED TEARING OF TWENTY FIVE MILLIMETER THICK STEEL PLATE AND TREATMENT[J].Building Technique Development,2003(2). |
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| Authors: | Zhou Hong\|bo\ Zhao Zhen\|yun\ Xu Ju\|chuan |
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| Affiliation: | Zhou Hong\|bo\ Zhao Zhen\|yun\ Xu Ju\|chuan |
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| Abstract: | The laminated tearing isn't only emerged in thicker steel plate.Based on the case history study,the reasons for laminated tearing of 25 mm thick low\|alloy structural steel were analyzed.In accordance with the results of ultrasonic wave non\|destructive test,analysis of steel chemical component and Z \|axis performance test of steel,it is concluded the laminated tearing was caused by inadequate joint design and local condensation and lamination of non\|metal materials in cross section of steel.The measurements taken to prevent it were proposed.Different repair and treatment methods for defect members were presented in terms of crack conditions. |
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| Keywords: | Laminated tearing Laminated steel Z \|axis stress Precaution measurements Repair |
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