The construction method of single-column cap beam using the combined system of hoop and triangular bracket
A construction method and triangular support technology, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of high foundation bearing capacity, occupying space under the bridge, and large amount of materials, so as to achieve less investment and no occupation The space under the bridge and the effect of simple construction technology
Inactive Publication Date: 2011-12-14
CHINA RAILWAY NO 9 GRP
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Problems solved by technology
This type of support system is characterized by a large amount of materials, high requirements on the bearing capacity of the foundation, and it will occupy the space under the bridge, and it is difficult to erect
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[0015] The single-column cap beam adopts the construction method of the combination system of hoop and triangular bracket, and the steps are as follows.
[0016] (1) Install hoops: Compared with the construction of single-column cap beam steel hoop method and double-column cap-beam construction, the biggest difference is that there is only one hoop for the pier column, which may easily cause the load-bearing beam to overturn during the concrete pouring process. This method is aimed at For this problem, two hoops are arranged on the same pier column 7, so that the load-bearing beam and the hoops form a triangular structure to increase its stability. During the installation process, install the upper and lower hoops on the pier column 7 in the order of first down and then up. The upper hoop 1 is placed at the specified elevation and clamped and fixed. The lower hoop 2 is installed on the top hoop 1. The edge distance is 5 meters and clamped and fixed, the upper hoop 1 is used a...
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The single-column cap beam adopts the construction method of the combination system of hoops and triangular brackets. The steps are as follows: 1) Install the hoops: install the upper and lower hoops on the pier column in the order of first down and then up, and place the upper hoop on the Specify the elevation position and clamp it, and install the lower hoop at a distance of 5 meters from the upper edge of the upper hoop and clamp it; 2) Load-bearing beam and distribution beam installation: install two load-bearing beams on each pier column, The load-bearing beam adopts double-leg channel steel, and several distribution beams are set on the load-bearing beam; 3) Preloading: After the hoop and the beam are installed, preload; For the installation of support and steel cage, first install the bottom form, hoist and install the steel cage to the designated position, and then install the side form and end form; 5) Concrete pouring: after the formwork is installed, perform concrete pouring. The construction process of this method is simple, the hoop is convenient to install, the material used is less than that of the steel pipe support, and the space under the bridge is not occupied.
Description
technical field [0001] The invention is applicable to the construction method of single-column capping beams in bridge engineering spanning highways, railways and rivers. Background technique [0002] The construction of the cover beam is conventionally made of steel pipe, steel portal frame support system or a mixed support system of Bailey frame, steel pipe, and steel portal frame. This type of support system is characterized by a large amount of materials, high requirements on the bearing capacity of the foundation, and it will occupy the space under the bridge, and it is difficult to erect. Contents of the invention [0003] The purpose of the invention is to provide a single-column cap beam construction method using hoop and triangular bracket combination system, which saves support materials, is easy to install, has no requirement on the bearing capacity of the foundation, and does not occupy the space under the bridge. [0004] The purpose of the present invention ...
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IPC IPC(8): E01D21/00
Inventor 王志朋夏志华刘壮刘洋陈兆祥王月娇孙雷兰宪钢姚长见毛晓东
Owner CHINA RAILWAY NO 9 GRP