摘要
As the longest sea-crossing highway bridge in the world,the 55-km Hong Kong-Zhuhai-Macao Bridge(HZMB)directly connects Hong Kong,Zhuhai,and Macao,which are three cities in China that are geographically close but separated by the Pearl River Estuary(PRE).The construction of the project lasted from January 2011 to February 2018 and was finally opened to traffic in October 2018(Gao et al.,2016;Zhu et al.,2019).The total investment of the project was 126.9 billion CNY(about 18.03 billion USD).As shown in Fig.1,the HZMB consists of three main sections:the Main Bridge(29.6 km)in the middle,the Hong Kong Link Road(12 km)in the east,and the Zhuhai Link Road(13.4 km)in the west.As the longest part,the estimated cost of the Main Bridge was 38.1 billion CNY(about 5.41 billion USD).The actual cost,however,was 51.1 billion CNY(about 7.26 billion USD).
作为目前世界上最长的跨海公路桥梁工程,港珠澳大桥在设计和施工中遇到了诸多难题,但它们都被一一克服;在此积累的经验非常值得国内外同行借鉴。为此,针对港珠澳大桥主体桥梁工程中连续钢箱梁的施工全过程的温度效应控制、结构性能预测和施工状态控制及钢筋混凝土结构中钢筋锈蚀对结构承载力的影响,本专辑邀请了直接参与到港珠澳大桥建设的科研人员和工程管理人员来分享他们的研究成果和观点,希望能帮助读者了解相关研究工作并促进研究人员开展讨论,以推进该领域的基础研究和技术创新。
