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一种分片装配式变截面箱梁节段的安装及连接方法
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CN117328372B
improve performance
Reduce measurement frequency
本发明涉及一种分片装配式变截面箱梁节段的安装及连接方法,在每个板单元内预设多个竖向主筋通孔和多个纵向主筋通孔;0#块拼装完成后,在各板块内的纵向及竖向主筋通孔穿设纵向主筋并注浆;依次吊装1#块的腹板、顶板和底板,将每个板块和与其对接的0#块通过纵向主筋连接并在纵向主筋通孔内注浆,并将1#块的顶板和底板分别与腹板通过竖向主筋连接,最后张拉预应力束,完成1#块安装及连接;按同样方法依次安装和连接后续节段,直至主梁合拢。本发明可避免传统悬拼工艺中梁段滑动、预应力孔道错位等问题,主梁整体性能好,同时在对接过程中可减少测量频次,提高施工效率。
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ROAD & BRIDGE INT CO LTD
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