Composite reinforcing structure for main arch circle

主拱圈复合加固结构

Abstract

本发明公开了一种主拱圈复合加固结构,其由主拱圈和钢筋砼套箍加固层构成;所述钢筋砼套箍加固层包括砂浆锚杆、钢筋网格;其中,砂浆锚杆锚入主拱圈;钢筋网格环围主拱圈并与砂浆锚杆连接;在钢筋网格上现浇砼形成环绕所述主拱圈的钢筋砼套箍加固层。采用本发明所述技术方案,能够提高桥梁承载力10-50%(相当于1-2级荷载等级),较重建费用节约工程造价80-90%,大大缩短工期,具有较大的技术、经济和社会效益。
The present invention discloses one kind composite reinforcing structure for main arch circle. The composite reinforcing structure consists of main arc circle and reinforcing reinforced concrete hoop layer, which includes mortar anchor rods inserted into the main arch circle and steel bar lattice around the main arch circle and connected with the mortar anchor rods. The in-situ deposited concrete on the steel bar lattice forms the reinforcing reinforced concrete hoop layer around the main arch circle. Adopting the technological scheme of the present invention can raise the bearing capacity of bridge by 10-50 %, and compared with re-building bridge, this has 80-90 % lower engineering cost and greatly shortened construction period.

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    CN-104631346-AMay 20, 2015北京建筑大学两铰拱桥双侧单向压力杆加固结构及方法