DJ180 Bridge Erecting Machine Tunnel Girder Simulation Construction Method Using BIM Technology
A construction method and technology of a bridge erecting machine, which are applied in the erection/assembly of bridges, bridges, bridge construction, etc., can solve the problems of increasing construction difficulty, poor safety and operability, and troublesome construction, and achieve the effect of optimizing the overall construction plan.
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Embodiment 2
[0078] Same as embodiment 1 scheme, specific
[0079] 1. To solve the problem that the bridge erecting machine passes through the tunnel smoothly, the problem that needs to be solved is to compress the height of the bridge erecting machine so that the components of the bridge erecting machine do not collide with the tunnel when passing through the tunnel. For this reason, the bridge erecting machine passes through the tunnel. Prepare for the following:
[0080] 1) Install the transfer bracket of the bridge erecting machine on the beam transporter, and use the beam transporter to carry the bridge erection machine through the tunnel. The height of the beam transporter is 1.1 meters, and the height of the bogie is 2.64 meters;
[0081] 2) At the place where the beam transport vehicle runs on the bridge-erecting machine, the transverse load center of the front vehicle is 14.5 meters away from the front end of the arm of the bridge-erecting machine, and the transverse load center o...
Embodiment 3
[0099] Same as embodiment 1 scheme
[0100] 1. In order to ensure the quality:
[0101] 1. Feeding beam, binding beam, hanging beam
[0102] (1) When tying the beams, the iron tiles should be installed, the iron tiles on both sides should be aligned, the steel wire rope should be in the middle of the iron tiles, and check whether the steel wire ropes have mutual pressure and whether they are lapped.
[0103] (2) When tying the beam, the jack rope should be kept vertical, and it is not allowed to hang obliquely. It is forbidden to forcefully push the hook vertically or horizontally to hang the jack rope in place, so as to avoid violent swing when lifting, or cause the steel wire rope to slide suddenly and cut off the wire rope, crushing beam body.
[0104] (3) Before any beam lifting operation, a trial lifting is required. That is to say, after the beam is tied up, the hoist should be braked for 2-3 times, and then the beam should be lifted a little to check whether the stee...
Embodiment 4
[0152] The same as the method in Embodiment 1, the applied engineering example is:
[0153] In the JQJXZQ-4 standard laying project of the newly-built Jiujingqu Railway, the amount of bridge engineering in this area is relatively large, and there are many tunnels. China Railway Sixth Bureau has no construction experience in short-distance beam erection at the tunnel entrance, so BIM technology is used to erect beams at the entrance and exit of the tunnel. The working conditions were simulated, the construction method of the beam erection was optimized, and the beam erection at the entrance and exit of the tunnel in the JQJXZQ-4 standard laying frame of the newly-built Jiujingqu Railway was completed safely and on time. The use of BIM construction technology to guide the construction of beams at the entrance and exit of the tunnel has received unanimous praise from Nanchang Railway Bureau and the owner.
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