Testing system for determining fatigue lives of corroded steel wires and method
A fatigue life and test system technology, which is applied in the direction of applying repetitive force/pulsation force to test the strength of materials, can solve the problems of fatigue life test evaluation without steel wire, and can not test multiple steel wires, and achieve the effect of shortening the test time.
Active Publication Date: 2017-10-24
SOUTHEAST UNIV
View PDF5 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Purpose of the invention: the purpose of the present invention is to provide a test system for measuring the fatigue life of corroded steel wires, to solve the problem that the existing fatigue tests cannot test multiple steel wires at the same time, and another purpose of the present invention is to provide a test system for measuring the fatigue life of corroded steel wires The life test method solves the problem that the prior art does not carry out the fatigue life test evaluation of the steel wire under different corrosion conditions
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
[0018] Below in conjunction with accompanying drawing, the present invention will be further described. 1
[0019] Such as Figure 4 As shown, the corrosion container 12 is a transparent square box made of plastics, the top of the box is detachable, a water valve 13 is provided on the side wall of the box, and a bracket 11 is attached to the inner side of the bottom of the box for placing the steel wire 6. The corrosion solution is injected at the top, and the release of the corrosion solution is completed by controlling the water valve 13, so as to meet the requirements of the surrounding immersion corrosion specification. Such as image 3 As shown, the reaction frame is welded by steel plates, including a column 5, a diagonal brace 10 and a support 4, and the column 5 is connected and fixed to the support 4 through the diagonal brace 10 respectively, and a jack 1 is connected to one side of the column 5, and a jack 1 Connected to the oil circuit 2, the number of uprights ...
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 testing system for determining fatigue lives of corroded steel wires. The testing system comprises a plurality of reaction frames and a fatigue testing machine, wherein the plurality of reaction frames are connected with the fatigue testing machine through an oil line respectively; each reaction frame comprises an upright column, an inclined strut and a support, the upright column is connected and fixed with the support through the inclined strut, one side of the upright column is connected with a jack, and the jack is connected with the oil line. The testing system can quantitatively evaluate the fatigue lives of the components under a corrosion condition, on the basis of the traditional fatigue testing machine, hydraulic pressure is applied synchronously to multiple groups of jacks with unequal sectional areas, and the condition that multiple groups of fatigue loads with different stress amplitudes are applied synchronously to a group of steel wires with equal sectional area is realized. Meanwhile, by means of the multiple reaction frames, synchronous fatigue testing of the steel wires with different corrosion degrees is realized, and testing time is shortened.
Description
technical field [0001] The invention belongs to the field of material fatigue life testing, in particular to a test system and method for measuring the fatigue life of corroded steel wires. Background technique [0002] The cable-stayed cables of long-span cable-stayed bridges bear most of the constant and live loads of the bridge and transmit them to the tower columns. The life of the cables is basically equal to the life of the entire bridge. The main cable of the suspension bridge bears all the load of the bridge and cannot be replaced during the service period. The vertical pressure of the main cable is evenly transmitted from the main cable saddle to the cable tower, and its service life is basically the same as that of the bridge. The prestressed anchor cables or anchor rods of long-term bridge anchoring and support projects also directly bear the upper load and transmit it to the foundation, and their service life is also the same as the full bridge service life. Suc...
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 IPC IPC(8): G01N3/36
CPCG01N3/36
Inventor 王莹张文辉吴佰建
Owner SOUTHEAST UNIV