CN2463453Y

CN2463453Y - Shock isolating independent pile platform

Info

Publication number: CN2463453Y
Application number: CN 01215245
Authority: CN
Inventors: 孙树民
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2001-02-19
Filing date: 2001-02-19
Publication date: 2001-12-05
Anticipated expiration: 2011-02-19

Abstract

The utility model provides a shock isolating independent pile platform, which comprises a deck, a conductor tube, an independent support pile, a rubber pad and a magneto-rheological damper, wherein, the rubber pad is arranged between the deck and the independent support pile, and the magneto-rheological damper is arranged between the conductor tube and the independent support pile and connects the conductor tube with the independent support pile together. The shock isolating independent pile platform has the advantages of simple structure, favorable shock insulating effect, long service life, safety and better stability.

Description

Earthquake isolation single pile platform

The utility model relates to a kind of artificial platform that is bearing on the pile foundation, particularly a kind of only support platform of earthquake isolation preferably.

Solely the stake support platform is a kind of simple and easy stage apparatus that is applicable to the shallow sea marginal oil field, mainly constitute by deck, waterproof casing, independent supporting pile, its deck is by independent supporting pile support, waterproof casing is placed in the independent supporting pile, fixedlys connected by modes such as welding with independent supporting pile in the deck; Because this platform has advantages such as simple in structure, that manufacturing is easy for installation, cost is low, so at present in area, the North Sea, the U.S. Gulf of Mexico, Italy is inferior as to be used widely in the marine sites such as the Bohai Sea of Leah sea and China, but this artificial platform is owing to its load is mainly carried on a shoulder pole by only pile, and only fixing lateral deformation stiffness is generally less, therefore this platform top tends to take place bigger horizontal movement under the effect of violent earthquake, so not only can influence the normal operation on deck, also may cause the heavy damage of fixed connection structure.

The purpose of this utility model is to overcome the shortcoming that prior art exists, and a kind of simple in structure, earthquake isolation single pile platform that earthquake isolation is effective is provided.

The utility model earthquake isolation single pile platform comprises deck, waterproof casing, independent supporting pile, also include rubber pad, MR damper, rubber pad is installed between deck and the independent supporting pile, and MR damper is installed in waterproof casing and links together between the supporting pile and with both separately.

Described MR damper comprises cylinder body, piston, coil, magnetic flow liquid, and the position of each several part is closed and is: piston is installed in the cylinder body, and coil winding is filled full magnetic flow liquid in the cylinder body on piston.

Action principle of the present utility model is: this earthquake isolation single pile platform has utilized the principle of rubber pad shock insulation and MR damper control vibrations that artificial platform is carried out damping control, rubber pad can separate the vibrations that platform is transmitted by the supporting pile vertical direction, MR damper can control waterproof casing and deck along continuous straight runs to around displacement thereby horizontal vibrating that can controlling platform.

The utility model has following advantage with respect to prior art: (1) adopts the structure of this earthquake isolation single pile platform, deck, waterproof casing and independent supporting pile are directly affixed, the wave force that platform is subjected to is mainly born by independent supporting pile, thereby the influence that waterproof casing and deck are subjected to is less; (2) because rubber pad that this earthquake isolation single pile platform adopts and MR damper can reduce the vibrations with the controlling level direction preferably, thereby the shock resistance that can overcome only support platform existence commonly used at present is poor, easily by the shortcoming of natural causes such as earthquake, sea beat destruction, prolong the working life of marine artificial platform, increase the security and stability of work.

Fig. 1 is the structural representation of the utility model earthquake isolation single pile platform;

Fig. 2 is the fundamental diagram of the MR damper of earthquake isolation single pile platform shown in Figure 1.

Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.

Embodiment:

Fig. 1 shows structure of the present utility model, as seen from Figure 1, this earthquake isolation single pile platform comprises deck 1, waterproof casing 2, independent supporting pile 3, rubber pad 4, MR damper 5, rubber pad 4 holds on deck 1 above being installed in independent supporting pile 3, MR damper 5 is installed between waterproof casing 2 and the independent supporting pile 3, its structure as shown in Figure 2, comprise cylinder body 7, piston 6, coil 9, magnetic flow liquid 8, close the position of each several part: piston 6 is installed in the cylinder body 7, coil 9 is wound on the piston 6, fill full magnetic flow liquid 8 in the cylinder body 7, the piston end 10 of MR damper 5 and cylinder body end 11 respectively with independent supporting pile 3 inner surfaces, waterproof casing 2 appearances and fixedly connected, the operating principle of MR damper 5 is: when piston 6 with cylinder body 7 relative motion takes place, will push the magnetic flow liquid 8 in the cylinder body 7, make it flow to the opposite side of piston 6 by the gap between piston 6 and cylinder body 7, if there is not the magnetic field effect, magnetic flow liquid 8 shows as Newtonian fluid, if make it produce magnetic field to coil 9 energisings that are wound on the piston 6, then magnetic flow liquid takes place to harden and changes visco-plastic body into, the damping force of piston 6 motions is increased, the yield strength of magnetic flow liquid 8 can be changed by the current strength in the regulating winding 9, thereby the size of the damping force of MR damper 5 can be regulated.This earthquake isolation single pile platform that MR damper 5 is installed is when being subjected to earthquake, typhoon, sea beat, can offset with outer impact force according to the size that the size of the impact force size of current by coil 9 in the dynamic adjustments MR damper 5 changes damping force, so just can reduce the moving impact of shake (shaking) preferably to this platform, prolong the working life of platform, and increase the security and stability of work.

Claims

1, a kind of earthquake isolation single pile platform, comprise deck (1), waterproof casing (2), independent supporting pile (3), it is characterized in that: also include rubber pad (4), MR damper (5), rubber pad (4) is installed between deck (1) and the independent supporting pile (3), and MR damper (5) is installed in waterproof casing (2) and links together between the supporting pile (3) and with both separately.

2, earthquake isolation single pile platform according to claim 1, it is characterized in that: MR damper (5) comprises cylinder body (7), piston (6), coil (9), magnetic flow liquid (8), piston (6) is installed in the cylinder body (7), coil (9) is wound on the piston (6), fills full magnetic flow liquid (8) in the cylinder body (7).