A Method for Determining the Shape Coefficient of Wind Load on the Structural Members of Transmission Tower
A technology of shape coefficient and determination method, which is applied in the testing of machines/structural components, elastic testing, instruments, etc., can solve the problem of not being able to reflect the characteristics of wind load, reasonably reflecting the real wind load characteristics of main members, and failing to meet the requirements of power transmission. Structural wind resistance design requirements and other issues
Active Publication Date: 2022-05-03
NINGBO ELECTRIC POWER DESIGN INST +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This rough determination method is difficult to reasonably reflect the real wind load characteristics of the main members
In addition, the wind load of the rod in the transmission tower structure is not only affected by its own shape and position, but also by the interference of the surrounding rods. The interference effect cannot reflect its real wind load characteristics
[0004] At present, there are few researches in this area at home and abroad, which cannot meet the wind resistance design requirements of refined transmission structures.
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
[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is developed on the basis of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.
[0032] In this embodiment: the transmission tower is a T-shaped angle steel ultra-high voltage linear tower, and its basic dimensions are as follows: the height of the tower is about 70m, and the total length of the cross arm is 60m. The target test member is located at the cross arm of the tower head.
[0033] According to the method provided by the present invention, the determination method of the wind load shape coefficient of the target test member at the cross-arm position of the transmission tower is as follows:
[0034] Step 1): According to the position of the target test member 1, select the entire tower head truncated model 2 for the tes...
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 belongs to the field of wind resistance of engineering structures, and in particular relates to a method for determining the wind load shape coefficient of structural rods of transmission towers. The method for determining the wind load shape coefficient of the transmission tower structural member provided by the present invention can actually consider the interference effect of the actual surrounding members, can effectively reflect the aerodynamic interference effect of the remaining members in the transmission tower structure on the tested member, and is suitable for Wind load testing of transmission tower structural members of different types, locations and installation angles. The method provided by the present invention can accurately obtain the real wind load shape coefficients of different rods in different wind directions under the condition of being disturbed by surrounding rods, and provide value basis for carrying out refined wind resistance design of power transmission projects.
Description
technical field [0001] The invention belongs to the field of wind resistance of engineering structures, and in particular relates to a method for determining the wind load shape coefficient of structural rods of transmission towers. Background technique [0002] In recent years, the high-voltage transmission line project has been vigorously developed. As the main supporting structure of the transmission network, the high-voltage transmission tower has the characteristics of tall and soft structure, complex and interlaced rods and so on. Wind load is one of the control loads in the structural design of transmission towers. [0003] In the past, the design research often focused on the overall wind load on the transmission tower and paid little attention to the actual wind conditions of the main members of the structure. The instability or damage of the main members may cause the damage of the transmission line under the action of strong winds. one of the reasons. As for the...
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): G01M9/08G01M5/00
CPCG01M9/08G01M5/0058
Inventor 钟维军徐海巍姚剑锋姚艳
Owner NINGBO ELECTRIC POWER DESIGN INST