An automatic seamless shape memory alloy expansion device and construction technology
A memory alloy and telescopic device technology, applied in bridge parts, bridge materials, bridges, etc., can solve problems such as difficulty in achieving seamless expansion and contraction, and achieve the effects of reducing maintenance costs, convenient operation and wide application range.
Inactive Publication Date: 2018-02-23
XUZHOU UNIV OF TECH
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Problems solved by technology
Therefore, it is difficult to achieve seamless expansion and contraction for the expansion mechanism, construction technology and structural materials used in traditional expansion devices.
Method used
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[0044] The following is a specific embodiment of the present invention, and the present invention will be further described in conjunction with the accompanying drawings.
[0045] Such as Figure 2 to Figure 8As shown, an automatic seamless shape memory alloy expansion device, the expansion device is installed in the grooves on two adjacent beams 1; the grooves at the ends of the beams 1 are provided with a plurality of pre-embedded reinforcement holes, the beams Vertical pre-embedded steel bars 2 are installed in the pre-embedded steel bar holes of 1; transverse bars 12 are connected between multiple pre-embedded steel bars 2, and a structure composed of pre-embedded steel bars 2 and transverse bars 12 is formed in the groove of beam body 1 Bracket; a U-shaped anchor bar 11 is welded on this bracket, and the anchor bar 11 hooks the bracket, and the side beam 8 is welded outside the anchor bar 11; The concrete layer 7, the beam body 1 is provided with a pavement layer 6 flush...
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Abstract
The invention discloses an automatic seamless shape memory alloy expanding-retracting device and a construction process, belonging to the technical field of bridges and architectural engineering. The device comprises side beams mounted in retaining grooves in two adjacent beam bodies, wherein the two side beams are opposite to each other, and a preserved seam is formed between the side beams; a plurality of memory alloy beam bodies which are distributed side by side are mounted in the preserved seam; a stretching-out support crossbeam which stretches out is fixed on each of two sides of each beam body; a slide way opposite to the preserved seam is formed in one of two stretching-out support crossbeams; and one ends of the memory alloy beam bodies are mounted on the slide way of one stretching-out support crossbeam, and the other ends of the memory alloy beam bodies are butted to the other stretching-out support crossbeam. Compared with the prior art, the automatic seamless shape memory alloy expanding-retracting device has the advantages that safety and reliability are achieved; the construction process is simple, and the operation is convenient; the durability of the integral structure is good; the applicable range is wide; and the repeated impact effect of a wheel load is greatly reduced, the service lives of the expanding-retracting device and the bridge are prolonged, and the maintenance cost of the bridge is lowered.
Description
technical field [0001] The invention relates to the technical field of bridges and construction engineering, in particular to an automatic seamless shape memory alloy expansion device and a construction process. Background technique [0002] The bridge expansion device is a device composed of rubber and steel materials installed at the bridge expansion joints for vehicles and people to pass through the bridge deck smoothly. It is one of the important components of the bridge structure, and its quality directly affects the bridge. The quality of service and driving comfort, as well as the service life of the bridge. Since the bridge expansion device directly bears the repeated impact of the wheel load in the application, and is exposed to the atmosphere for a long time, it is extremely easy to damage and difficult to repair. Therefore, it is particularly important to choose an excellent expansion device in bridge engineering. . At the same time, with the rapid development o...
Claims
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IPC IPC(8): E01D19/06E01D101/34E01D101/40
CPCE01D19/06E01D19/062E01D2101/34E01D2101/40
Inventor 智友海史向平谢立栋
Owner XUZHOU UNIV OF TECH