详细介绍了螺栓孔打眼、钢构件工厂制作和现场安装、体外束的制作和安装以及体外束的张拉等施工工艺。

Some construction technologies were introduced in detail such as making of bolts hole, manufacture and installation of steel members, making, installation and tension of external strand.

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南浦大桥主桥钢结构构件尺寸准确，全桥14万套螺栓现场安装无一扩孔，达到国际先进水平。

The steel structural members of the main span of Nanpu bridge require high dimensional accuracy. The 140,000 sets of bolts were all fitted and bored on the spot with advanced international level.

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