摘要
为了研究既有桥梁的加固问题,建立了ANSYS的有限元分析模型。通过对实际桥梁的分析,分别用SRAP(一种高强软钢丝和氧化铝聚糖树脂砂浆)技术及CFRP法(碳纤维增强复合材料)、粘贴钢板法两种方案加固了空心板梁。在三种技术都满足加固要求的情况下,通过有限元分析得出:SRAP技术在改善梁的刚度,提高钢筋混凝土的承载能力,以及改善梁受力状况方面,效果都是最佳的。对实际工程中应用SRAP技术提供了重要的参考和依据。
In order to study the strengthening of in-service bridges, an finite element analysis model was established in ANSYS. SRAP （A kind of high strength steel wire and alumina chitosan resin mortar）, carbon fiber reinforced polymer and bonding steel plates were used to separately strengthen the hollow slab beams of a bridge, and reinforcement requirements are met in all three cases. Through the finite element analysis, it can be concluded that the SRAP is the best choice to improve the bearing capacity of reinforced concrete and the stiffness and strength performance of the slab beams. SRAP technology provides an important reference and basis for practical engineering.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第4期630-635,共6页
Journal of Guangxi University（Natural Science Edition）
基金
国家安监总局项目(05-05-079)
辽宁省教育厅项目(L2011048)
关键词
桥梁加固
有限元
镀锌软钢丝束
氧化铝聚糖树脂砂浆
空心板梁
体外预应力加固
bridge strengthening
finite element
galvanized steel wire bundle
alumina chitosanresin mortar
hollow slab beam
external prestressed reinforcement
