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| 沿海桥梁混凝土结构腐蚀调查及分析 | |
| 引用本文： | 吝杰,金祖权,庄其昌. 沿海桥梁混凝土结构腐蚀调查及分析[J]. 工业建筑, 2012, 42(7): 161-165 |
| 作者姓名： | 吝杰 金祖权 庄其昌 |
| 作者单位： | 1. 山东水利职业学院,山东日照,276826 2. 青岛理工大学土木学院,山东青岛,266033 3. 日照碧海建筑规划设计有限公司,山东日照,276500 |
| 基金项目： | 国家自然科学基金项目，山东省自然科学基金项目，山东省教育厅基金项目 |
| 摘 要： | 针对日照沿海桥梁的耐久性现状进行调研,通过对桥梁墩身、边梁和栏杆混凝土的保护层厚度、碳化深度以及桥梁不同部位的游离氯离子浓度的检测表明:桥梁混凝土结构保护层厚度偏小、车辆超载、结构设计不合理、施工管理不当、缺乏维护管理是导致沿海桥梁混凝土结构损伤劣化的主要原因。此外,海洋环境中的氯离子和空气中的二氧化碳将导致桥梁混凝土中钢筋腐蚀,海水中的盐在混凝土中结晶将导致桥梁墩身腐蚀破坏。 |
| 关 键 词： | 沿海桥梁 混凝土 钢筋锈蚀 保护层厚度 结构设计 |
CORROSION INSPECTION AND ANALYSIS OF COASTAL BRIDGE CONCRETE STRUCTURES IN MARINE ENVIRONMENT |
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| Lin Jie,Jin Zuquan,Zhuang Qichang. CORROSION INSPECTION AND ANALYSIS OF COASTAL BRIDGE CONCRETE STRUCTURES IN MARINE ENVIRONMENT[J]. Industrial Construction, 2012, 42(7): 161-165 | |
| Authors: | Lin Jie Jin Zuquan Zhuang Qichang |
| Affiliation: | 1.Shandong Water Polytechnic College,Rizhao 276826,China; 2.College of Civil Engineering,Qingdao Technological University,Qingdao 266033,China; 3.Rizhao Bihai Architecture Design Co.Ltd,Rizhao 276500,China) |
| Abstract: | The durability inspection of bridge concrete structures in Rizhao coastal area was carried out.And the investigation on cover thickness,carbonation depth and free chloride concentration of bridge concrete was executed.The inspection resulted showed that the concrete cover thickness of bridge structures was less than the designed value and results in durability problem;the unreasonable structure design,unsuitable construction management,shortage maintenance and excess load were the main reasons of damage to coastal bridges.Moreover,the ingressive chloride and carbonation would lead to corrosion of steel bar in bridge structures.And the crystalline salt would result in physical deterioration of bridge concrete. |
| Keywords: | coastal bridge concrete steel corrosion cover thickness structure design |
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