An experimental device and experimental method for simulating bridge fire and load
A technology of experimental device and loading device, which is applied in the direction of measuring device, machine/structural component testing, instrument, etc. It can solve the problems of inapplicable fire exposure method, accurate simulation of bridge fire exposure, and absence of bridge fire laboratory, etc.
Active Publication Date: 2021-03-30
CHANGAN UNIV
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Problems solved by technology
However, in the prior art, there are more fire experimental devices for building structures, and there is no bridge fire laboratory for the above-mentioned situation.
Method used
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Embodiment 1
[0037] see Figure 1-5 As shown, the present invention provides an experimental device for simulating fire and load on a bridge, including: a loading device and a simulated fire device,
[0038] The loading device includes fixed brackets symmetrically distributed on both sides of the simulated fire-receiving device, a number of beam reaction frames 5 are installed between the fixed brackets on both sides of the simulated fire-receiving device, and the upper and lower surfaces of the two ends of the beam reaction frame 5 are both. The electric roller 18 is in contact with the reserved opening 8 on the track channel steel 7, and the electric roller 18 is connected with the wireless remote control device; the lower surface of each beam reaction frame 5 is provided with a pulley slot, and a pulley slot is installed in the slot. Pulley, the jack 6 is connected with the beam reaction frame 5 through the pulley slot, the pulley;
[0039] The simulated fire receiving device includes ...
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The invention belongs to the technical field of experimental devices of fire catching of bridges, and relates to an experimental device and an experimental method for simulating fire catching and loadbearing of a bridge. The device comprises a loading device and a fire catching simulation device, the structure is simple and uncomplicated, the experimental simulation of load bearing and fire catching of the bridge can be independently achieved, and an experimental state of simultaneous fire catching and load bearing of the bridge can also be simulated. A refractory furnace is connected with alongitudinal floor chute through electric rollers of refractory furnace, and does not support the bridge but plays a role of simulating a fire, and in this way, the simulation of fire catching of different locations of the bridge can be realize by moving the refractory furnace; and a cross beam counter-force frame is connected in rail steel channel through electric rollers, and the simulation of bridge loading of different positions is realized by moving the cross beam counter-force frame.
Description
technical field [0001] The invention belongs to the technical field of bridge fire experiment devices, and relates to an experiment device and an experiment method for simulating bridge fire and load. Background technique [0002] Although the probability of fire on highway bridges is small, many bridges will encounter accidental fires every year. When a bridge suffers a fire, the physical and chemical properties of the building materials will change, and there will be a constitutive relationship different from the original one, which will seriously affect the bearing capacity of the bridge, and then affect many problems such as urban traffic. [0003] Based on the above situation, it is urgent to study the mechanical properties of bridges under fire conditions. Therefore, relevant researchers will naturally think of using the laboratory to simulate the bridge fire, and then study the mechanical properties of bridges under fire conditions. However, in the prior art, there ...
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IPC IPC(8): G01M99/00
CPCG01M99/002G01M99/007
Inventor 张岗冯玉良贺拴海宋超杰万豪黄来喜王宝莹周历侯炜
Owner CHANGAN UNIV