SMPM与其它加固方法的比较及RC构件加固程序简介
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摘要
为了减少加固设计中的大量重复性工作,依据最新颁布的《混凝土结构加固设计规范》(GB50367-2006),用EXCEL编制了钢筋混凝土构件的加固程序。应用编制的计算程序,对6根不同截面的钢筋混凝土梁,同时采用钢绞线和碳纤维进行加固设计。对采用一层同梁宽的钢绞线或碳纤维加固后梁的抗弯承载力分析表明,钢绞线加固方法对承载力提高的幅度更大。结合对加固性能指标(使用空间的影响、防火、环保等)的综合比较,说明新型的钢绞线网片聚合物砂浆加固方法更符合经济、美观、实用的理念。
In order to reducing the abundant repeated jobs in strengthening design,strengthening design procedure of RC member is developed according to the newly promulgated "Design Code for Strengthening Concrete Structure".With the procedure,6 different RC beams are strengthened by both high-strength steel stranded mesh and polymer mortar(SMPM) and carbon fiber reinforced plastic(CFRP) simultaneously.The beams all strengthened by one layer SMPM and CFRP,and the width of which is equal to the beam's width.The bending strength after strengthening shows that the SMPM can increase more bending capability than CFRP,which combined with the general comparison of strengthening index(affection of space,fire resistance,environment protection),and indicates that strengthening technique with SMPM is more economical and applicable than other methods.
In order to reducing the abundant repeated jobs in strengthening design,strengthening design procedure of RC member is developed according to the newly promulgated "Design Code for Strengthening Concrete Structure".With the procedure,6 different RC beams are strengthened by both high-strength steel stranded mesh and polymer mortar(SMPM) and carbon fiber reinforced plastic(CFRP) simultaneously.The beams all strengthened by one layer SMPM and CFRP,and the width of which is equal to the beam's width.The bending strength after strengthening shows that the SMPM can increase more bending capability than CFRP,which combined with the general comparison of strengthening index(affection of space,fire resistance,environment protection),and indicates that strengthening technique with SMPM is more economical and applicable than other methods.
引文
[1]张立峰.高强钢绞线网-聚合物砂浆加固大偏心RC柱的研究[D].北京科技大学,2007
[2]李秉南.混凝土结构加固技术研究与软件编制[D].东南大学,2004
[3]姚秋来.高强钢绞线网片-聚合物砂浆复合面层加固技术研究概况[A].2006年中美地震工程年轻学者论坛[C],2006
[4]GB50367-2006,混凝土结构加固设计规范[S]
[5]李科,魏延良.钢筋混凝土结构的抗震加固方法述评[J].地震工程与工程振动,2005,25(4):126~129
[6]张敬书,潘宝玉.现行抗震加固方法及发展趋势[J].工程抗震与加固改造,2005,27(1):56~62
[7]吴波,万志军.碳纤维布及胶粘剂的高温强度研究[A].第三届全国钢结构防火及防腐技术研讨会暨第一届全国结构抗火学术交流会论文集[C],福州,2005:386~394
[8]姚秋来,王忠海,王亚勇,等.高强钢绞线网片-聚合物砂浆复合面层加固技术——新型“绿色”加固技术[J].工程质量,2005,(12):17~20
[9]王亚勇,姚秋来,王忠海,等.高强钢绞线网片-聚合物砂浆复合面层加固砖墙的试验研究[J].建筑结构,2005,35(8):36~40
[10]王亚勇,姚秋来,王忠海,等.高强钢绞线网片-聚合物砂浆复合面层加固钢筋混凝土梁的耐火试验研究[J].建筑结构,2007,37(1):112~113
[11]GB50010-2002,混凝土结构设计规范[S]
[2]李秉南.混凝土结构加固技术研究与软件编制[D].东南大学,2004
[3]姚秋来.高强钢绞线网片-聚合物砂浆复合面层加固技术研究概况[A].2006年中美地震工程年轻学者论坛[C],2006
[4]GB50367-2006,混凝土结构加固设计规范[S]
[5]李科,魏延良.钢筋混凝土结构的抗震加固方法述评[J].地震工程与工程振动,2005,25(4):126~129
[6]张敬书,潘宝玉.现行抗震加固方法及发展趋势[J].工程抗震与加固改造,2005,27(1):56~62
[7]吴波,万志军.碳纤维布及胶粘剂的高温强度研究[A].第三届全国钢结构防火及防腐技术研讨会暨第一届全国结构抗火学术交流会论文集[C],福州,2005:386~394
[8]姚秋来,王忠海,王亚勇,等.高强钢绞线网片-聚合物砂浆复合面层加固技术——新型“绿色”加固技术[J].工程质量,2005,(12):17~20
[9]王亚勇,姚秋来,王忠海,等.高强钢绞线网片-聚合物砂浆复合面层加固砖墙的试验研究[J].建筑结构,2005,35(8):36~40
[10]王亚勇,姚秋来,王忠海,等.高强钢绞线网片-聚合物砂浆复合面层加固钢筋混凝土梁的耐火试验研究[J].建筑结构,2007,37(1):112~113
[11]GB50010-2002,混凝土结构设计规范[S]
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