A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for reinforcing an arch bridge by spraying UHPC (Ultra High Performance Concrete) and planting steel bars
The invention discloses a method for reinforcing an arch bridge by spraying UHPC (Ultra High Performance Concrete) and planting steel bars. The method comprises the following steps: (1) planting the steel bars on the side surfaces and the bottom surfaces of arch ribs of an arch ring; (2) spraying UHPC materials on the side surfaces and the bottom surfaces of the arch rings and the arch ribs at the positions where the steel bars are planted in the step (1) so as to form UHPC base layers; (3) after the UHPC foundation layer is stable, a reinforcing mesh being hung at the position where bar planting treatment is conducted; (4), the UHPC material being sprayed to the side faces of the arch ring and the arch rib and the bottom face of the arch ring and the arch rib again at the position where the steel bar planting treatment is conducted in the step 1 to form a UHPC reinforcing layer with the thickness being a second set value. The thickness of the reinforcing layer can be effectively reduced, meanwhile, the reinforcing procedure of the arch bridge is reduced, the construction speed is increased, and the engineering cost is reduced.
本发明公开了一种喷射UHPC结合植筋加固拱桥的方法，包括如下步骤：1）在拱圈拱肋侧面和底面植筋；2）在1）中进行植筋处理的位置将UHPC材料喷射在拱圈拱肋侧面和底面以形成UHPC基础层；3）当UHPC基础层稳定后，在进行植筋处理的位置挂设钢筋网；4）再次在1）中进行植筋处理的位置将UHPC材料喷射在拱圈拱肋侧面和拱圈拱肋底面以形成厚度为第二设定值的UHPC加固层。本发明能有效减小加固层的厚度，同时减少拱桥的加固工序，提高施工速度并降低工程造价。
Method for reinforcing an arch bridge by spraying UHPC (Ultra High Performance Concrete) and planting steel bars
The invention discloses a method for reinforcing an arch bridge by spraying UHPC (Ultra High Performance Concrete) and planting steel bars. The method comprises the following steps: (1) planting the steel bars on the side surfaces and the bottom surfaces of arch ribs of an arch ring; (2) spraying UHPC materials on the side surfaces and the bottom surfaces of the arch rings and the arch ribs at the positions where the steel bars are planted in the step (1) so as to form UHPC base layers; (3) after the UHPC foundation layer is stable, a reinforcing mesh being hung at the position where bar planting treatment is conducted; (4), the UHPC material being sprayed to the side faces of the arch ring and the arch rib and the bottom face of the arch ring and the arch rib again at the position where the steel bar planting treatment is conducted in the step 1 to form a UHPC reinforcing layer with the thickness being a second set value. The thickness of the reinforcing layer can be effectively reduced, meanwhile, the reinforcing procedure of the arch bridge is reduced, the construction speed is increased, and the engineering cost is reduced.
本发明公开了一种喷射UHPC结合植筋加固拱桥的方法，包括如下步骤：1）在拱圈拱肋侧面和底面植筋；2）在1）中进行植筋处理的位置将UHPC材料喷射在拱圈拱肋侧面和底面以形成UHPC基础层；3）当UHPC基础层稳定后，在进行植筋处理的位置挂设钢筋网；4）再次在1）中进行植筋处理的位置将UHPC材料喷射在拱圈拱肋侧面和拱圈拱肋底面以形成厚度为第二设定值的UHPC加固层。本发明能有效减小加固层的厚度，同时减少拱桥的加固工序，提高施工速度并降低工程造价。
Method for reinforcing an arch bridge by spraying UHPC (Ultra High Performance Concrete) and planting steel bars
一种喷射UHPC结合植筋加固拱桥的方法
ZHOU JIANTING (author) / ZHANG ZHONGYA (author) / YANG JUN (author) / ZOU YANG (author) / XU LIHAO (author) / WANG ZONGSHAN (author) / ZHANG HONG (author) / XIN JINGZHOU (author) / ZHAO RUIQIANG (author) / WU BO (author)
2021-05-18
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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