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孟加拉邦戈邦都大桥是通过公路、铁路、电力线路的变截面连续箱梁多功能桥梁。在频繁的旱灾、热带气旋等多种气候灾害影响下由于表面温度应力导致桥面层纵向开裂,对桥面裂缝修复后横向粘贴碳纤维板约束纵向裂缝发展;对桥面采用两种不同铺装方案进行处理,铺设5cm厚的玛蹄酯沥青耐磨层。目前,在桥面板大面积粘贴CFRP板材并铺设玛蹄脂沥青层的施工技术在全世界都没有先例,为了研究铺设玛蹄脂沥青层的高温作用对CFRP板加固多功能箱梁桥的加固效果,根据设计方案进行静力试验,对高温环境下CFRP板加固多功能箱梁桥进行裂缝研究。
The Bang Bang Bridge in Bengal is a multi-purpose bridge with variable cross-section continuous box girder passing highways, railways and power lines. In the frequent drought, tropical cyclone and other climate disasters under the influence of the surface temperature stress caused by the longitudinal cracking of the deck layer, the bridge deck cracks transversely bonded carbon fiber reinforced plastic sheet restrained the development of longitudinal cracks on the deck using two different pavement programs For processing, laying 5cm thick marl ester asphalt wear layer. At present, there is no precedent in the whole world for the construction technology of large area of CFRP board affixed with CFRP board and paving mastic asphalt layer. In order to study the reinforcement effect of CFRP board reinforced multi-functional box girder bridge in order to study the high temperature effect of laying mastic asphalt layer, , According to the design of static test, CFRP board under high temperature reinforced multi-function box girder bridge cracks.