Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Installation and construction method for tied arch continuous beam composite arch
The invention provides a tied arch continuous beam composite arch installation construction method which comprises the following steps: S1, hoisting an arch springing section into an arch springing positioning bracket, and erecting a temporary support system after concrete pouring of a main beam reaches design strength; s2, symmetrically hoisting arch rib sections to the position of a first K-shaped wind brace at the two ends of the bridge, continuing hoisting the arch rib sections after the first K-shaped wind brace is installed, and sequentially installing the K-shaped wind braces and the arch rib sections to a closure section; s3, before closure, the size of a closure opening is rechecked every two hours, the temperature during measurement is recorded, the accurate matching and cutting length is determined according to measurement data, and on-site matching and cutting are conducted on the two ends of the closure section; and S4, the whole bridge is closed after the roof wind brace is hoisted. And the precision of the closure section is guaranteed through the on-site cutting method, so that the internal stress problem caused by the phenomenon of thermal expansion and cold contraction is avoided, and the assembly precision of the tie bar is guaranteed.
本发明提供一种系杆拱连续梁叠合拱安装施工方法，包括以下步骤：步骤S1，拱脚段吊运至拱脚定位支架内，主梁砼浇筑达到设计强度后搭设临时支撑体系；步骤S2，在桥梁两端对称吊装拱肋节段至第一个K字风撑处，第一个K字风撑安装完成后继续进行拱肋节段的吊装，依次进行K字风撑和拱肋节段安装至合拢段；步骤S3，合拢前，每两个小时复核一次合拢口尺寸，并记录测量时的温度，根据测量数据，确定准确的配切长度，对合拢段的两端进行现场配切；步骤S4，吊装顶风撑后全桥合拢。通过现切的方法保证合拢段的精度，从而避免热胀冷缩的现象带来的内应力问题，从而保证系杆的装配精度。
Installation and construction method for tied arch continuous beam composite arch
The invention provides a tied arch continuous beam composite arch installation construction method which comprises the following steps: S1, hoisting an arch springing section into an arch springing positioning bracket, and erecting a temporary support system after concrete pouring of a main beam reaches design strength; s2, symmetrically hoisting arch rib sections to the position of a first K-shaped wind brace at the two ends of the bridge, continuing hoisting the arch rib sections after the first K-shaped wind brace is installed, and sequentially installing the K-shaped wind braces and the arch rib sections to a closure section; s3, before closure, the size of a closure opening is rechecked every two hours, the temperature during measurement is recorded, the accurate matching and cutting length is determined according to measurement data, and on-site matching and cutting are conducted on the two ends of the closure section; and S4, the whole bridge is closed after the roof wind brace is hoisted. And the precision of the closure section is guaranteed through the on-site cutting method, so that the internal stress problem caused by the phenomenon of thermal expansion and cold contraction is avoided, and the assembly precision of the tie bar is guaranteed.
本发明提供一种系杆拱连续梁叠合拱安装施工方法，包括以下步骤：步骤S1，拱脚段吊运至拱脚定位支架内，主梁砼浇筑达到设计强度后搭设临时支撑体系；步骤S2，在桥梁两端对称吊装拱肋节段至第一个K字风撑处，第一个K字风撑安装完成后继续进行拱肋节段的吊装，依次进行K字风撑和拱肋节段安装至合拢段；步骤S3，合拢前，每两个小时复核一次合拢口尺寸，并记录测量时的温度，根据测量数据，确定准确的配切长度，对合拢段的两端进行现场配切；步骤S4，吊装顶风撑后全桥合拢。通过现切的方法保证合拢段的精度，从而避免热胀冷缩的现象带来的内应力问题，从而保证系杆的装配精度。
Installation and construction method for tied arch continuous beam composite arch
一种系杆拱连续梁叠合拱安装施工方法
YANG QIUSONG (Autor:in) / JIANG YAFENG (Autor:in) / BAO JIANWEN (Autor:in) / SUN MENG (Autor:in) / WANG WENKE (Autor:in) / XU CHANGLIN (Autor:in) / DAI WENLIN (Autor:in) / MAO XINPING (Autor:in) / ZHAO HONGWEI (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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