A universal wheel type shock absorber used for erection of simply supported steel girders of cross-sea bridges
A technology of cross-sea bridge and universal wheel, which is applied in bridge construction, bridges, erection/assembly of bridges, etc., can solve the problems of inconvenient operation and poor shock absorption effect, and achieve the effect of improving efficiency, easy processing and simple structure.
Active Publication Date: 2020-10-16
CHINA RAILWAY BRIDGE SCI RES INST LTD +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The technical problem to be solved by the present invention is that the existing steel girder buffer shock absorbing structure has the problems of inconvenient operation and poor shock absorbing effect
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 Construction
[0019] The invention provides a universal wheel type shock absorber for erecting a simply supported steel girder of a cross-sea bridge, which can realize automatic positioning of the beam, as well as buffering and energy consumption functions in the process of placing the beam, and effectively improve the erection of the steel girder. efficiency. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] Such as figure 1 As shown, the present invention provides a universal wheel type shock absorber for simply supporting steel girder erection of a cross-sea bridge, which is fixed on the bridge pier and includes a movable pressure drop assembly and a universal wheel 1 .
[0021] The movable pressure drop assembly includes a bottom plate 6, a top plate 5 and a compression spring arranged between the bottom plate 6 and the top plate 5, the bottom plate 6 is provided with a pin shaft 4, the top plate 5 i...
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
The invention discloses a universal wheel type shock absorber for erection of a simply-supported steel beam for a sea-crossing bridge. The universal wheel type shock absorber comprises a movable pressure drop component and a universal wheel; the movable pressure drop component comprises a bottom plate, a top plate and a pressure spring arranged between the bottom plate and the top plate; hinge pins are arranged on the bottom plate and penetrate through the top plate; nuts are arranged at the upper parts of the hinge pins; a friction plate is fixedly arranged on the bottom surface of the bottomplate; the top plate is fixed to the bottom of the to-be-erected steel beam; the universal wheel is arranged on the bottom plate in a liftable manner through a positioning shaft; and the friction plate is arranged above the universal wheel. The universal wheel type shock absorber is simple in structure and easy to machine, buffer and energy consumption functions during beam placing can be realized through contact friction of the friction plate and a sliding seat and elasticity of the springs, thus the steel beam erection efficiency can be improved effectively, and the shock absorber has the excellent effect during actual application.
Description
technical field [0001] The invention relates to the technical field of bridge construction, in particular to a universal wheel type shock absorber used for erecting simply supported steel girders of cross-sea bridges. Background technique [0002] Under the background of the country's vigorous development of marine projects, the construction of cross-sea bridges in my country is in a stage of vigorous development, such as the completed Hangzhou Bay Bridge, the Xiamen-Zhangzhou Bridge, the Hong Kong-Zhuhai-Macao Bridge and the Pingtan Strait under construction. Bridge etc. During the construction of the sea-crossing bridge, in order to reduce offshore operations, the construction of simply supported steel girders is also a method of prefabricating the whole hole in a factory and erecting the bridge site with floating cranes. Different from inland river girder erection, in the process of erecting simply supported steel girders of cross-sea bridges, it is necessary to face comp...
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 Patents(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 潘东发张红心张立超王东辉汪正兴王波刘鹏飞刘科钱玉山李鑫龚金才廖远刘永酃吴肖波柴小鹏
Owner CHINA RAILWAY BRIDGE SCI RES INST LTD