Variable cross-section steel bridge incremental launching construction auxiliary device and construction method
A technology of jacking construction and auxiliary devices, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., which can solve problems such as the difficulty of jacking construction, achieve the effects of shortening the construction period, saving construction costs, and simple structure
Inactive Publication Date: 2021-01-22
WUXI MUNICIPAL DESIGN INST
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem of the present invention is: the existing jacking method is mostly suitable for the construction of steel bridges with equal cross-section heights. For steel bridges with variable cross-sections, the construction of the jacking method is difficult because the bottom line of the steel bridge is arc-shaped or parabolic.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] Such as Figure 1-5 As shown, a variable-section steel bridge jacking construction auxiliary device includes several auxiliary units 1 arranged in sequence, and the upper ends of the auxiliary units are welded to the bottom of the variable-section steel bridge 7 . The auxiliary unit 1 includes a support structure and a bottom plate 4. The upper end of the support structure is welded to the bottom of the variable-section steel bridge 7, and the lower end of the support structure is welded to the horizontal bottom plate 4. The bottom plates 4 of each auxiliary unit 1 are on the same horizontal plane, and the bottom of the bottom plate 4 is arranged with There are two chutes, and the arrangement direction of the chutes is along the longitudinal direction of the variable-section steel bridge 7 . The chute is made of two stoppers 5 welded on the bottom of the base plate 4 side by side.
[0033] Preferably, the supporting structure includes several vertical H-shaped steels 2...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A variable cross-section steel bridge incremental launching construction auxiliary device comprises a plurality of auxiliary units (1) arranged in sequence, the upper ends of the auxiliary units (1) are fixed to the bottom of a variable cross-section steel bridge (7), and the lower ends of the auxiliary units (1) are located on the same horizontal plane. The auxiliary unit (1) comprises a supporting structure and a bottom plate (4); a plurality of sliding grooves are formed in the lower portion of the bottom plate (4), and the arrangement direction of the sliding grooves is in the longitudinaldirection of the variable cross-section steel bridge (7). According to the variable cross-section steel bridge incremental launching construction auxiliary device, the auxiliary units with the variable heights are welded below the variable cross-section steel bridge in advance, so that the bottom of the steel bridge above the sliding rail is in the horizontal plane, and the incremental launchingconstruction difficulty is reduced. The variable cross-section steel bridge incremental launching construction auxiliary device is simple in structure and easy and convenient to construct, the construction cost is saved, and the construction period is shortened.
Description
technical field [0001] The invention relates to the field of municipal engineering, in particular to an auxiliary device and construction method for jacking construction of variable-section steel bridges. Background technique [0002] There are many installation methods for steel structure bridges. Generally, large cranes and bridge erecting machines are used to hoist them in place. However, under the constraints of relevant conditions such as narrow construction sites, tight construction work surfaces, and many environmental factors, steel boxes in some projects Beam just can't adopt conventional hoisting method to hoist in place. The jacking method can break the limitation of the construction site environment and complete the installation of long-span steel structure bridges. In the past, the jacking method was mostly applied to the construction of steel bridges with equal cross-section heights. For steel bridges with variable cross-sections, the bottom line of steel brid...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/06
CPCE01D21/06
Inventor 刘龙源刘钢波秦雨葛刚磊陈奕
Owner WUXI MUNICIPAL DESIGN INST