Rapidly replaceable staged energy-consuming high-speed rail bridge steel bar damping device and application method
A shock absorbing device, a staged technology, applied to bridges, bridge construction, bridge parts, etc., can solve the problems that the bridge cannot be prevented from falling beam damage, and the device cannot be restored to its original state.
Active Publication Date: 2022-08-02
CENT SOUTH UNIV
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Problems solved by technology
[0008] The device cannot be restored to its original shape to maintain normal operation after the earthquake is over;
[0009] Falling girder failure of bridges cannot be prevented
Method used
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[0040] like figure 1 , figure 2 As shown, the rapidly replaceable and staged energy-consuming high-speed rail bridge steel bar damping device disclosed in this embodiment includes four sets of damping units 4 arranged around the central damping and isolating support 3 at the top of the prefabricated pier 2 . The shock-absorbing and isolating support 3 adopts the existing conventional structure, which will not be repeated here. The shock absorption unit 4 includes a beam bottom embedded component 41 , a pier top embedded component 42 , a T-shaped steel plate 43 and an energy dissipation component 44 .
[0041] combine Figure 3 to Figure 8 As can be seen:
[0042] The pre-embedded component 41 at the bottom of the beam and the pre-embedded component 42 at the top of the pier column have the same structure, and both include a rectangular steel plate and an L-shaped anchor. The horizontal arms of the anchor rod are arranged symmetrically outward, the vertical arms are welded...
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The invention discloses a rapidly replaceable staged energy-consuming high-speed rail bridge steel bar shock absorption device and an application method thereof. The shock absorption unit includes the embedded components at the bottom of the beam, the embedded components at the top of the pier column, the installation components, the energy dissipation components and the restraint components. The pre-embedded components at the bottom of the beam and the pre-embedded components at the top of the pier column are arranged facing each other, and the installation components are connected to the opposite sides respectively. The energy dissipation component includes the upper connecting component and the lower connecting component that are hinged to each other. The upper connecting component and the mounting component on the embedded component at the bottom of the beam can be pivoted and hinged, and the lower connecting component and the mounting component on the steel embedded component at the top of the pier can be rotated. Hinged. The constraining component is a single rod or a spring and a sleeve, and is connected between two adjacent energy dissipation components. The components are prefabricated and installed directly on site, and the construction process is convenient and fast. It has the advantages of quick replacement, energy consumption in stages, good energy consumption effect, and prevention of falling beam damage.
Description
technical field [0001] The invention belongs to the field of bridge damping, in particular to a rapidly replaceable staged energy-consuming high-speed rail bridge steel strip damping device and an application method. Background technique [0002] Because high-speed railways often span multiple provinces and cities, the changes in geological and hydrological conditions are complex, which has a great impact on the construction of high-speed railways. At the same time, the high-speed railway itself runs fast, and has high requirements for driving stability and comfort. Therefore, in the construction process, high-speed railways often use bridges to avoid the impact of complex terrain. Therefore, bridges play an important role in the entire high-speed railway, and large damage to high-speed railway bridges during earthquakes should be avoided. [0003] By summarizing the earthquake damages of high-speed railway bridges in previous earthquakes, it is found that the seismic damag...
Claims
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IPC IPC(8): E01D19/00E01D19/02E01D2/00E01D19/04E01D21/00
CPCE01D19/00E01D19/02E01D2/00E01D19/041E01D21/00
Inventor 江力强晏颖琦蒋丽忠宓玉溪国巍
Owner CENT SOUTH UNIV