中文摘要：

港口、码头、近海平台等海工钢筋混凝土结构物长期暴露在恶劣的环境中，会因受到腐蚀介质的影响而降低其安全性。尤其是海水侵蚀作用下，钢筋混凝土结构物更易遭受破坏，造成巨大的损失。因此，结构的安全可靠性成为人们研究的重要课题。本试验采用浸烘循环的试验方法来模拟多离子对钢筋混凝土梁的侵蚀，通过对4根碳纤维增强混凝土试验梁在人工海水侵蚀后进行抗弯能力试验，研究了碳纤维增强混凝土梁在遭受腐蚀的不同时间段内抗弯能力的变化情况，试验中采用手动千斤顶进行加载，由试验可知碳纤维增强混凝土梁的抗侵蚀能力明显提高，这为在腐蚀环境中应用碳纤维增强混凝土抗侵蚀能力提供依据。

英文摘要：

The reinforced concrete construction of port, wharf, inshore platform etc. exposed in the bad environment can suffer from the corrosion media and lower its safety level. Particularly with the seawater eroding, the reinforced concrete construction will fail easily and result in a great loss. Therefore, the safety and reliability of its structure increasingly become the great concern of people. The soak-drying circulation method is used to simulate the corrosion of the multiple ions in seawater. The bending strength of 4 experimental beams of carbon fibre reinforced concrete eroded in the artificial seawater is tested and its bending ability changes are studied in different time intervals. It provided the basis for the application of the CFRC to enhance its resistance power in the corrosion environment.