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A platform for research: civil engineering, architecture and urbanism
Process for reinforcing pier body of single-column pier of bridge
The invention discloses a process for reinforcing a pier body of a single-column pier of a bridge. The process comprises the following steps: S1, planting steel bars; S2, reinforcing steel bar connection; S3, installing column foot and pier body steel pipe; S4, erecting a support, and pouring concrete; S5, performing installation, specifically, transversely installing a steel cover beam on the pier body steel pipe, and then installing at least one support on each of the two transverse sides of the top face of the steel cover beam so as to support a ramp box beam above the steel cover beam; and S6, detaching the support. The pier body is wrapped by the pier body steel pipe, and the micro-expansion concrete is poured between the steel pipe and the pier body, so that the supporting force of the original pier body is increased, and the original single-fulcrum support of the pier body is changed into multi-fulcrum support; a steel cover beam is transversely arranged at the top of the steel pipe, and a support is additionally arranged on each of the two transverse sides of a single-column pier support in the middle of a bridge span, so that the middle pier and fulcrums at the two ends of the box girder share the torque of the bridge span together, and the effect of effectively improving the torque distribution of the ramp bridge by improving the torsional rigidity of the structure is achieved.
本发明公开了一种桥梁桥梁独柱墩墩身加固工艺，包括以下步骤：S1、植筋；S2、钢筋连接；S3、柱脚和墩身钢管安装；S4、搭设支架和浇筑混凝土；S5、安装，在墩身钢管上横向安装钢盖梁，再在钢盖梁顶面横向两侧各安装至少一个支座，以支撑上方的匝道箱梁；S6、拆除支架。本发明在墩身外包墩身钢管，并在钢管与墩身之间灌注微膨胀混凝土，不仅增加了原有墩身的支撑力，而且将原来的墩身单支点支撑为多支点支撑；并且还在钢管顶部横向设置钢盖梁，在桥跨中间独柱墩支撑横向两侧各增设一个支座，使中间桥墩与箱梁两端支点一起分担桥跨扭矩，达到通过提高结构抗扭刚度来有效改善匝道桥扭矩分布的效果。
Process for reinforcing pier body of single-column pier of bridge
The invention discloses a process for reinforcing a pier body of a single-column pier of a bridge. The process comprises the following steps: S1, planting steel bars; S2, reinforcing steel bar connection; S3, installing column foot and pier body steel pipe; S4, erecting a support, and pouring concrete; S5, performing installation, specifically, transversely installing a steel cover beam on the pier body steel pipe, and then installing at least one support on each of the two transverse sides of the top face of the steel cover beam so as to support a ramp box beam above the steel cover beam; and S6, detaching the support. The pier body is wrapped by the pier body steel pipe, and the micro-expansion concrete is poured between the steel pipe and the pier body, so that the supporting force of the original pier body is increased, and the original single-fulcrum support of the pier body is changed into multi-fulcrum support; a steel cover beam is transversely arranged at the top of the steel pipe, and a support is additionally arranged on each of the two transverse sides of a single-column pier support in the middle of a bridge span, so that the middle pier and fulcrums at the two ends of the box girder share the torque of the bridge span together, and the effect of effectively improving the torque distribution of the ramp bridge by improving the torsional rigidity of the structure is achieved.
本发明公开了一种桥梁桥梁独柱墩墩身加固工艺，包括以下步骤：S1、植筋；S2、钢筋连接；S3、柱脚和墩身钢管安装；S4、搭设支架和浇筑混凝土；S5、安装，在墩身钢管上横向安装钢盖梁，再在钢盖梁顶面横向两侧各安装至少一个支座，以支撑上方的匝道箱梁；S6、拆除支架。本发明在墩身外包墩身钢管，并在钢管与墩身之间灌注微膨胀混凝土，不仅增加了原有墩身的支撑力，而且将原来的墩身单支点支撑为多支点支撑；并且还在钢管顶部横向设置钢盖梁，在桥跨中间独柱墩支撑横向两侧各增设一个支座，使中间桥墩与箱梁两端支点一起分担桥跨扭矩，达到通过提高结构抗扭刚度来有效改善匝道桥扭矩分布的效果。
Process for reinforcing pier body of single-column pier of bridge
一种桥梁独柱墩墩身加固工艺
YANG YUNHUA (author) / SHAN YAOJIA (author) / WANG JING (author) / WANG CHENFEI (author) / ZHU QUANLI (author) / XU ZHICHAO (author)
2021-06-01
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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