| 碳纤维预应力混凝土梁桥发展动向及设计要点 |
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| 引用本文： | 常学亮,汪晶,杜进生.碳纤维预应力混凝土梁桥发展动向及设计要点[J].公路,2005(8):57-63. |
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| 作者姓名： | 常学亮 汪晶 杜进生 |
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| 作者单位： | 甘肃省交通厅,兰州市,730030;中交第一公路勘察设计研究院,西安市,710075;北京交通大学土建学院,北京市,100044 |
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| 摘 要： | 碳纤维预应力混凝土梁桥的最新发展趋势，是采用体内先张有粘结碳纤维筋与体外后张无粘结碳纤维筋相结合的预应力配筋措施。本文就碳纤维预应力混凝土梁桥设计相关的碳纤维筋抗拉强度、截面平衡配筋率、延性和可变形性，无粘结碳纤维筋的极限应力等进行了比较和讨论。
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| 关 键 词： | 碳纤维复合材料 梁桥 预应力混凝土 无粘结预应力筋 |
| 文章编号： | 0451-0712（2005）08-0057-07 |
| 收稿时间： | 2005-03-01 |
| 修稿时间： | 2005-03-01 |
Development Trends and Design Key Points for CFRP Prestressed Concrete Girder Bridges |
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| CHANG Xue-liang,WANG Jing,DU Jin-sheng.Development Trends and Design Key Points for CFRP Prestressed Concrete Girder Bridges[J].Highway,2005(8):57-63. |
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| Authors: | CHANG Xue-liang WANG Jing DU Jin-sheng |
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| Abstract: | The new trend of CFRP prestressed concrete girder bridges is the adoption of internally bonded CFRP tendons combined with externally unbonded CFRP tendons. Some design issues related with CFRP bridges,such as tensile strength of CFRP tendons, balanced ratio, ductility and deformability, and ultimate stress of unbonded CFRP tendons are compared and discussed. |
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| Keywords: | Carbon Fiber Reinforced Polymers(CFRP) girder bridge prestressed concrete unbonded prestressed tendons |
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