中国港湾建设

钢混结合梁梁板起顶结合技术

作者：王世峰黄海欧陈超华孙晓伟

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出版年,卷(期):页码：2012,40(5):66-69

摘要：

武汉二七长江大桥非通航孔采用6伊90 m钢混结合梁，开口钢槽梁与预制桥面板通过剪力钉结合。在梁板
结合施工中，采用了起顶、结合、落梁的施工工艺，使桥面板结合后储备一定的压应力，降低了二期恒载及其他荷
载在墩顶区产生的顶板拉应力，充分利用钢材抗拉和混凝土抗压性能，减少顶板开裂，提高结构的耐久性和安全性。

The non-navigation span of Wuhan Erqi Bridge has a 6伊90 m steel-concrete composite girder，the open steel
channel beam and the precast deck are combined through the shear nails on the top of the beam. Through cambering，integra原
tion and falling in place，compressive stress is stored in the deck，so the tensile stress in the deck around the pier is reduced
caused by later dead load. The tensile properties of steel and the compression performance concrete are used fully，so the
deck cracking is reduced and the structural durability and safety are improved.

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