Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated small box girder installation and construction method for intelligent expressway
The invention discloses a prefabricated small box girder installation and construction method for an intelligent expressway. The prefabricated small box girder installation and construction method specifically comprises the following steps that S1, construction preparation is conducted; the construction of a front procedure is completed before box girders are installed, and the strength of a bent cap wet joint concrete structure meets the design requirement; grouting is completed through a stand column capping beam sleeve; a bent cap is tensioned and grouted for the first time; and the box girders are numbered in the direction from the small pile number to the large pile number; and s2, construction survey setting-out is carried out; paying-off and position control are carried out, a longitudinal center line, support longitudinal and transverse center lines, a plate end position transverse line and a support bottom contour line of each hole beam is released on the pier surface according to the actually paid-off line center line and the pier surface center mileage, and a bottom edge point of each beam is installed on the plate end position transverse line; the box girders are erected through a bridge girder erection machine, the construction interference is little, the process is simple, and the construction cost is saved; a crane can take the hoisting of a prefabricated stand column and the bent cap into consideration, the girder erection construction is flexible, and the continuous span operation is not needed.
本发明公开了一种用于智慧快速路的预制小箱梁安装施工方法，该预制小箱梁安装施工方法具体包括以下步骤：S1：施工准备；箱梁安装前完成前置工序的施工，包括盖梁湿接缝混凝土结构的强度满足设计要求；立柱盖梁套筒完成灌浆；盖梁完成第一次张拉并注浆；对箱梁从小桩号到大桩号方向进行编号；S2：施工测量放样；放线和控制位置，根据实际放出的线路中心线和墩台中心里程，在墩台面上放出每孔梁的纵向中心线、支座纵横中心线、板端位置横线及支座底部轮廓线，在板端位置横线上安出每片梁底部边缘点；本发明采用架桥机架设箱梁，施工干扰少，工艺简单，施工成本较节约；吊车可兼顾预制立柱和盖梁的吊装，架梁施工灵活、无需连续跨作业。
Prefabricated small box girder installation and construction method for intelligent expressway
The invention discloses a prefabricated small box girder installation and construction method for an intelligent expressway. The prefabricated small box girder installation and construction method specifically comprises the following steps that S1, construction preparation is conducted; the construction of a front procedure is completed before box girders are installed, and the strength of a bent cap wet joint concrete structure meets the design requirement; grouting is completed through a stand column capping beam sleeve; a bent cap is tensioned and grouted for the first time; and the box girders are numbered in the direction from the small pile number to the large pile number; and s2, construction survey setting-out is carried out; paying-off and position control are carried out, a longitudinal center line, support longitudinal and transverse center lines, a plate end position transverse line and a support bottom contour line of each hole beam is released on the pier surface according to the actually paid-off line center line and the pier surface center mileage, and a bottom edge point of each beam is installed on the plate end position transverse line; the box girders are erected through a bridge girder erection machine, the construction interference is little, the process is simple, and the construction cost is saved; a crane can take the hoisting of a prefabricated stand column and the bent cap into consideration, the girder erection construction is flexible, and the continuous span operation is not needed.
本发明公开了一种用于智慧快速路的预制小箱梁安装施工方法，该预制小箱梁安装施工方法具体包括以下步骤：S1：施工准备；箱梁安装前完成前置工序的施工，包括盖梁湿接缝混凝土结构的强度满足设计要求；立柱盖梁套筒完成灌浆；盖梁完成第一次张拉并注浆；对箱梁从小桩号到大桩号方向进行编号；S2：施工测量放样；放线和控制位置，根据实际放出的线路中心线和墩台中心里程，在墩台面上放出每孔梁的纵向中心线、支座纵横中心线、板端位置横线及支座底部轮廓线，在板端位置横线上安出每片梁底部边缘点；本发明采用架桥机架设箱梁，施工干扰少，工艺简单，施工成本较节约；吊车可兼顾预制立柱和盖梁的吊装，架梁施工灵活、无需连续跨作业。
Prefabricated small box girder installation and construction method for intelligent expressway
一种用于智慧快速路的预制小箱梁安装施工方法
LI JIE (Autor:in) / ZHAO ZHONGYI (Autor:in) / WANG TIEZHU (Autor:in) / LI BIN (Autor:in) / LI FU (Autor:in) / LIANG JUN (Autor:in)
06.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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