Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof

A single-tower without back-cable slanting and overall lifting technology, which is applied to cable-stayed bridges, bridges, bridge parts, etc., can solve the problems of complex main tower structure, high process requirements, and difficult construction, and achieve processing, manufacturing, installation and layout Convenient, less hardware investment, good construction effect

Active Publication Date: 2010-07-21
CHINA RAILWAY 20 BUREAU GRP +3
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AI Technical Summary

Problems solved by technology

[0008] The structure of the main tower is complicated, the process requirements are high, and the construction is difficult

Method used

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  • Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof
  • Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof
  • Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof

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Embodiment Construction

[0059] Such as figure 1 , Figure 6 , Figure 7 and Figure 8 The overall lifting formwork for the main tower of a single-tower cable-stayed bridge without back cables is shown, including a formwork reinforcement system 18-1 for the main tower of the cable-stayed bridge that needs to be constructed by segmental pouring. The upward extension direction of the tower lifts the formwork reinforcement system 18-1 upwards as a whole, the lifting system 18-2, the demoulding and clamping system 18-3 used in conjunction with the formwork reinforcement system 18-1, and the formwork reinforcement system 18-3 are respectively arranged 18-1 top and bottom platform systems 18-4 for construction personnel to walk on, the lifting system 18-2 is installed on the formwork reinforcement system 18-1. The formwork reinforcement system 18-1 includes a formwork for forming, a forming formwork frame arranged on the outside of the formwork for forming, and a tie rod system for temporarily fixing the...

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Abstract

The invention discloses an integral lifting template of a main pylon of a single-pylon cable-stayed bridge without dorsal cables and a lifting construction method thereof. The method comprises the following steps of: (1) preparation before construction; (2) lower bridge structure construction; (3) upper bridge structure construction comprising the following construction processes of: lower pylon concrete pouring construction, lower beam construction, middle pylon segmental pouring construction, alternate segmental pouring construction of an upper pylon and a middle suspension cable beam segment and stayed-cable mounting, wherein an integral lifting template is used for segmental construction on both the middle pylon and the upper pylon; and (4) bridge surface system construction. The integral lifting template has reasonable structural design, convenient processing, manufacture, mounting and arrangement, low investment cost, simple construction method and steps and high construction speed and can quickly and safely complete the construction task of the main pylon of the cable-stayed bridge by utilizing simple construction tools and investing less labor, and various technical indexes of the main pylon of the constructed and molded cable-stayed bridge meet the requirements of the design and a construction specification.

Description

technical field [0001] The invention belongs to the technical field of bridge main tower construction, and in particular relates to an integral hoisting formwork and a hoisting construction method for the main tower of a single-tower cable-stayed bridge without back cables. Background technique [0002] Daijiawan Weihe Bridge in Baoji City is located in the east of Baoji City, Shaanxi Province, the ancestor of China and the hometown of Emperor Yan. It is one of the "four horizontal and ten vertical" main road network frameworks in Baoji City. It is a landmark building that integrates functions and landscapes. , The bridge construction process is complicated and the technical content is high. [0003] Daijiawan Weihe Bridge in Baoji City is 1146 meters long, and the span combination: 10×20 meters (hollow slab girder) + 127 meters (cable-stayed bridge) + 16×32 meters (large hole slab beam) + 127 meters ( Cable-stayed bridge) + 9×20 meters (hollow slab girder), the main bridge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/14E01D11/04
Inventor 陈磊韩建红武群虎赵来义郑峰
Owner CHINA RAILWAY 20 BUREAU GRP
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