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誓将天堑变通途——记中交二航局总工程师张鸿

2018-04-13 15:01:05    新华网

新华社武汉4月13日电 题:誓将天堑变通途——记中交二航局总工程师张鸿

新华社记者李劲峰

跨越天险,如履平地。被称为“人间彩虹”的桥梁,带来畅通坦途的背后,凝聚着建桥人的智慧与心血。

苏通大桥、杭州湾大桥、北盘江大桥……直接主持和指导的特大型桥梁建设达20多座,多项工艺创新助推中国桥梁刷新世界纪录,中交二航局总工程师张鸿用敢于接受挑战、勇于创新突破的执着与信念,践行天堑变通途的建桥使命。

  半路出家:从建码头转行建大桥

多次创新建桥工艺、获得国家科技进步奖的张鸿,真正接触桥梁建设已是36岁。

1998年,中交二航局开始涉足桥梁建设业务。担任副总工程师的张鸿此前一直从事码头工程设计施工,随之开始转行。

“我虽然是学交通建设出身,可刚接触时,很多桥梁名词术语都没听过。”张鸿说,隔行如隔山,桥梁与码头水工虽同属土木建筑领域,但两者结构体系完全不同,转行阵痛难免。

桥梁被誉为土木工程领域“皇冠上的明珠”。相对于摩天大楼、码头岛屿等大型建筑工程,桥梁不仅需要承受自身荷载,还得经受汽车、火车高速驶过的巨大冲击。

“建桥既要‘下地’,也得‘上天’。”张鸿说,桥梁作为柔性结构,如同纤细的面条,要平衡好各种结构、风力、抗震等因素,“如同走钢丝绳,稍有不慎就会留下隐患,甚至出现垮塌等重大事故”。

1998年底开工的武汉军山长江大桥,是张鸿首次参与施工的大型桥梁。“当时我就定位为一个普通工长,从零开始补课。”从桥梁结构试验、计划安排、混凝土浇筑,每个施工环节,都活跃着张鸿的身影。

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