新闻
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China

中国建世界第二高桥 高406米长2171米(图)

2016-01-11 16:30:10   中国青年报

一位国外的网友在网上留言调侃说,如果在他们国家,很可能先讨论10年,再花5年的时间规划,最后花5年建造,最终花费可能是预估的4倍。

张明闪知道,自己和工程一刻都等不起。

他和技术员们没日没夜地画着草图,再进行演算,反复论证后,团队决定用悬索桥的形式,打开这道难题的突破口,技术团队给这个设想取了个学术味很浓的名字——世界上最大的单跨板桁结合加劲梁悬索桥。

回到具体的技术操作中,过去是先吊装桥面钢板和下层桁架,再拼装焊接,这次能不能将顺序倒过来?“在地面将上层桥面钢板和下层支撑桁架梁焊接起来,然后一段一段地在高空中拼成一座整桥。”张明闪说,团队设想出的这个办法类似“拼图”,可以最大程度地提高材料运输、使用效率。

但此前,世界桥梁建筑史上并没有过这样建设的先例。“先试试吧。”清水河大桥设计室负责人艾磊轻描淡写的一句话背后,是整个团队没日没夜地实验、计算。

焊接时,怎么防止桥面钢板和下层桁架变形?

用什么焊接方法最好?

焊点分布在什么部位最合适?

一段段板桁结合体吊在空中怎么保证拼接整齐?

万一错位变形了怎么办?

一串串问题摆在技术团队面前,很多技术员的梦中都充斥着重达180吨的板桁结合体,这些结合体的耐受性直接决定了桥梁的质量,按照技术要求,这座桥梁必须确保至少使用10年不大修。

实验、计算几个月后,张明闪心里有了底,他开始从沿海往大山里调运建材。“为了让货运司机把这些大家伙运过来,我成了一个‘大忽悠’。”张明闪说,桥梁主缆一共两根,每根重5000多吨,长1900多米。每根主缆由179根基准索组成,每根基准索又由91根钢丝组成,每根基准索重30吨。由于工地山路崎岖,每一个货车司机都是骂骂咧咧回去,临走前都会因为山路难行撂下这样一句话:“再也不来了。”

两个月里,张明闪和同事们变着法儿的一个个哄着货车司机。只有一个司机勉强跑了两个来回,总共拉366趟货到最后换了365个司机。

当第一段板桁结合体在空中和第二段稳稳合上时,张明闪感觉不可能已经变成了可能。他和技术员们吃住都在清水河大桥的项目部。有人问他工作时间,他略带幽默地回答:“365天减7天,那7天是回家过年。”

上一页2/4下一页
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20160111/21119198_2.html
Server: cms-9-157
Date: 2026/03/05 02:43:40

Powered by China
China