ProjectGanqimaodu Port Arch Space Frame, Inner Mongolia
Dimensions1,422m L (4 sections) × 110m span × 54m high
StructureArch bolted-ball
ErectionPre-assembly + segmental lift + aerial (mid-span closure)
Highlights1,422米超长拱形网架分4段流水施工，通过高精度三维坐标控制网逐段消解累积误差；"跨中合龙法"自拱顶向两端对称推进。
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