Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Intelligent construction method for variable-cross-section gradient linear box girder
The invention discloses an intelligent construction method for a variable-cross-section gradual-change linear box girder. The intelligent construction method comprises the following construction steps that (1) a No.0 block at the top of a pier is constructed; (2) mounting and pre-pressing a hanging basket and a bracket, and monitoring and measuring; determining a pre-polishing height value of the hanging basket; (3) the hanging baskets are subjected to suspension casting construction in a bilateral symmetry mode from the No.0 block at the top of the bridge pier, the height of a box girder pier top beam is 4.5-6.5 m, the height of a midspan beam is 1.8-3.5 m, and the beam bottom and the upper edge line of a bottom plate both change according to a quadratic parabola; carrying out beam body linear monitoring measurement in the cantilever casting construction process; and (4) middle closure construction. The control method can effectively solve the control problem of the overall line shape and the gradually-changed variable cross-section in the construction of the variable-cross-section gradually-changed linear prestressed suspended pouring box girder, the construction precision and quality are improved, and the stability and safety of a bridge structure are ensured.
本发明公开了一种变截面渐变线形箱梁智能化施工方法，包括以下施工步骤：1)桥墩顶部0号块施工；2)进行挂篮及托架的安装和预压，进行监控量测；确定挂篮的预抛高值；3)挂篮从桥墩顶部0号块向左右对称悬浇施工，箱梁墩顶梁高为4.5‑6.5m，跨中梁高为1.8‑3.5m，梁底和底板上缘线均按二次抛物线变化；悬浇施工过程进行梁体线形监控量测；4)中间合龙施工。本发明能够有效解决变截面渐变线形预应力悬浇箱梁施工中整体线形和渐变变截面的控制难题，提高施工精度和质量，确保桥梁结构的稳定性和安全性。
Intelligent construction method for variable-cross-section gradient linear box girder
The invention discloses an intelligent construction method for a variable-cross-section gradual-change linear box girder. The intelligent construction method comprises the following construction steps that (1) a No.0 block at the top of a pier is constructed; (2) mounting and pre-pressing a hanging basket and a bracket, and monitoring and measuring; determining a pre-polishing height value of the hanging basket; (3) the hanging baskets are subjected to suspension casting construction in a bilateral symmetry mode from the No.0 block at the top of the bridge pier, the height of a box girder pier top beam is 4.5-6.5 m, the height of a midspan beam is 1.8-3.5 m, and the beam bottom and the upper edge line of a bottom plate both change according to a quadratic parabola; carrying out beam body linear monitoring measurement in the cantilever casting construction process; and (4) middle closure construction. The control method can effectively solve the control problem of the overall line shape and the gradually-changed variable cross-section in the construction of the variable-cross-section gradually-changed linear prestressed suspended pouring box girder, the construction precision and quality are improved, and the stability and safety of a bridge structure are ensured.
本发明公开了一种变截面渐变线形箱梁智能化施工方法，包括以下施工步骤：1)桥墩顶部0号块施工；2)进行挂篮及托架的安装和预压，进行监控量测；确定挂篮的预抛高值；3)挂篮从桥墩顶部0号块向左右对称悬浇施工，箱梁墩顶梁高为4.5‑6.5m，跨中梁高为1.8‑3.5m，梁底和底板上缘线均按二次抛物线变化；悬浇施工过程进行梁体线形监控量测；4)中间合龙施工。本发明能够有效解决变截面渐变线形预应力悬浇箱梁施工中整体线形和渐变变截面的控制难题，提高施工精度和质量，确保桥梁结构的稳定性和安全性。
Intelligent construction method for variable-cross-section gradient linear box girder
变截面渐变线形箱梁智能化施工方法
DING XIAOQIANG (Autor:in) / LI JIANG (Autor:in) / HOU HAOWEN (Autor:in) / AN WEI (Autor:in) / CHENG HAO (Autor:in) / XUE ZHIQIANG (Autor:in) / YUAN DAKAI (Autor:in) / FENG CHENGPENG (Autor:in) / KE LEI (Autor:in) / REN XIAOBAO (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
Variable cross-section box girder bridge closure segment construction method
| Europäisches Patentamt | 2015
FRAGMENTED-ASSEMBLY-TYPE VARIABLE CROSS-SECTION BOX GIRDER STRUCTURE AND CONSTRUCTION METHOD
| Europäisches Patentamt | 2024
Sliced assembly type variable cross-section box girder structure and construction method
| Europäisches Patentamt | 2022
Full-breadth variable-cross-section steel box girder and construction method thereof
| Europäisches Patentamt | 2015