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一、概述随着港口码头、桥梁建设深水化、大型化的发展,为提高施工效率,加快建设速度,工程设计上越来越趋向于采用大型预制构件的方案,构件重量达300～500t,迫切需要装备相应的趣运输设备解决这类大型构件的转堆、出运和吊装难题。为此,我局先后建造了2000t 方驳和500t 起重船,但苦于国内没有起重能力足够的陆上起重设备与之配套。因此,我局从1989年底开始依靠自己的力量研制国内第一台单吊点起重量500t 的
I. Overview With the development of deep-seaports and bridges in port wharfs and bridges, in order to improve the construction efficiency and speed up the construction speed, engineering design tends to adopt the scheme of large-scale prefabricated components with the weight of 300 ~ 500t, which urgently needs Equipped with the interesting transport equipment to solve such large components of the reactor, delivery and lifting problems. To this end, our bureau has built a 2000t square barge and 500t crane, but suffer from the lack of lifting capacity of land-based lifting equipment and supporting. Therefore, our bureau from the end of 1989 began to rely on their own strength to develop the first domestic lifting point weight 500t