Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Demolition and reconstruction construction method for removing old bridge of overline arch bridge by using new bridge
The invention discloses a dismantling and rebuilding construction method for dismantling an old bridge by using a new bridge for an overline arch bridge, which comprises the following steps of: S1, dismantling the old bridge, and only retaining an arch rib of the old bridge; s2, parts of the upper portions of bridge abutments on the two sides of the old bridge are dismantled; s3, temporary steel pipe supports are erected on bridge abutments on the two sides of the old bridge, and longitudinal beams of the new bridge are hoisted on the temporary steel pipe supports; s4, a plurality of hanging beams are arranged on the longitudinal beams of the new bridge, and an electric hoist and a steel wire rope are arranged below each hanging beam; s5, hoisting the arch rib by using a steel wire rope and an electric hoist, and cutting and removing the arch rib of the old bridge section by section; and S6, permanent supports are installed on the bridge abutments on the two sides, longitudinal beams of the new bridge are hoisted and lowered to the bridge abutments, the temporary steel pipe supports are dismantled, and the positions of the longitudinal beams of the new bridge are adjusted to the permanent supports. The construction technology is simple, the old bridge does not need to be provided with a temporary support, the whole construction process can be carried out under the condition that overline road traffic is not closed, the influence on traffic is small, the dismantling process is safe and reliable, and the construction cost is low.
本发明公开了一种跨线拱桥利用新桥拆除旧桥的拆除重建施工方法，包括以下步骤：S1、拆除旧桥，仅保留旧桥的拱肋；S2、将旧桥两侧的桥台的上部拆除一部分；S3、在旧桥两侧的桥台上搭设临时钢管支撑，并在临时钢管支撑上吊装新桥的纵梁；S4、在新桥的纵梁上设置多个吊挂梁，每个吊挂梁下方设置电动葫芦及钢丝绳；S5、利用钢丝绳与电动葫芦吊住拱肋，逐段切割旧桥的拱肋并移除；S6、在两侧的桥台上安装永久支座，将新桥的纵梁吊装下放至桥台上，拆除临时钢管支撑，调整新桥的纵梁位置到永久支座上。本发明施工工艺简单，旧桥不需要搭设临时支撑，整个施工过程可以在不封闭跨线道路交通的条件下进行，对交通影响小，拆除过程安全可靠，施工成本低。
Demolition and reconstruction construction method for removing old bridge of overline arch bridge by using new bridge
The invention discloses a dismantling and rebuilding construction method for dismantling an old bridge by using a new bridge for an overline arch bridge, which comprises the following steps of: S1, dismantling the old bridge, and only retaining an arch rib of the old bridge; s2, parts of the upper portions of bridge abutments on the two sides of the old bridge are dismantled; s3, temporary steel pipe supports are erected on bridge abutments on the two sides of the old bridge, and longitudinal beams of the new bridge are hoisted on the temporary steel pipe supports; s4, a plurality of hanging beams are arranged on the longitudinal beams of the new bridge, and an electric hoist and a steel wire rope are arranged below each hanging beam; s5, hoisting the arch rib by using a steel wire rope and an electric hoist, and cutting and removing the arch rib of the old bridge section by section; and S6, permanent supports are installed on the bridge abutments on the two sides, longitudinal beams of the new bridge are hoisted and lowered to the bridge abutments, the temporary steel pipe supports are dismantled, and the positions of the longitudinal beams of the new bridge are adjusted to the permanent supports. The construction technology is simple, the old bridge does not need to be provided with a temporary support, the whole construction process can be carried out under the condition that overline road traffic is not closed, the influence on traffic is small, the dismantling process is safe and reliable, and the construction cost is low.
本发明公开了一种跨线拱桥利用新桥拆除旧桥的拆除重建施工方法，包括以下步骤：S1、拆除旧桥，仅保留旧桥的拱肋；S2、将旧桥两侧的桥台的上部拆除一部分；S3、在旧桥两侧的桥台上搭设临时钢管支撑，并在临时钢管支撑上吊装新桥的纵梁；S4、在新桥的纵梁上设置多个吊挂梁，每个吊挂梁下方设置电动葫芦及钢丝绳；S5、利用钢丝绳与电动葫芦吊住拱肋，逐段切割旧桥的拱肋并移除；S6、在两侧的桥台上安装永久支座，将新桥的纵梁吊装下放至桥台上，拆除临时钢管支撑，调整新桥的纵梁位置到永久支座上。本发明施工工艺简单，旧桥不需要搭设临时支撑，整个施工过程可以在不封闭跨线道路交通的条件下进行，对交通影响小，拆除过程安全可靠，施工成本低。
Demolition and reconstruction construction method for removing old bridge of overline arch bridge by using new bridge
一种跨线拱桥利用新桥拆除旧桥的拆除重建施工方法
LI SONGGEN (Autor:in) / YANG QINGBAI (Autor:in) / CHENG MINGMING (Autor:in) / HUANG XIAOJIAN (Autor:in) / HAN PENGZHOU (Autor:in) / TIAN JING (Autor:in) / CHENG XIANJIE (Autor:in) / DU ZEHUI (Autor:in) / ZHANG GUOJIN (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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