Prefabricated and flexible earthquake-resistant self-resetting structure associated with a subway station

Patent metadata

Field	Value
Publication number	US-10344445-B2
Application number	US-201715566629-A
Country	US
Kind code	B2
Filing date	Feb 22, 2017
Priority date	Oct 20, 2016
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

The present disclosure discloses a self-reset flexible earthquake-resistant system of the prefabricated subway station, comprising prefabricated component prestressed tendon, waterproof rubber, and rubber bearing. The main structure of station is built by connection between prestressed tendon and prefabricated component, it changes the connection methods of connection node from consolidation joint to hinged joint which makes the subway station into a flexible system, while at the same time, self-reset function is realized by prestressed tendon; “T” and “” system is combined with rubber waterproof tape, and rubber bearing which is installed in connection site of prefabricated component, multi-protection measures of waterproof is realized, earthquake-resistant effect is also realized. Connection problem with the prefabricated component can be solved by the self-reset flexible earthquake-resistant system of the prefabricated subway station; underground station structure is changed into the flexible system through releasing bending moment in connection site of the prefabricated component, deforming ability of subway station is improved, the earthquake-resistant ability of underground subway station is improved.

First claim

What is claimed is:

1. A prefabricated and flexible earthquake-resistant self-resetting rectangular structure associated with a subway station, the structure comprising:
a plurality of prefabricated top slabs, a plurality of prefabricated side walls, a plurality of prefabricated middle slabs, a plurality of prefabricated bottom slabs, a plurality of middle columns, a plurality of prestressed tendons, a plurality of waterproof adhesive tapes, a plurality of rubber bearings, and a plurality of prestressed reinforcement channels installed within the slabs and the middle columns, wherein:
a waterproof adhesive tape and a rubber bearing are installed on a connection site between a prefabricated top slab and a prefabricated side wall, wherein the prefabricated top slab and the prefabricated side wall are perpendicular to each other;
a waterproof adhesive tape and a rubber bearing are installed on a connection site between a prefabricated side wall and a prefabricated middle slab, wherein the prefabricated middle slab and the prefabricated side wall are perpendicular to each other;
a waterproof adhesive tape and a rubber bearing are installed on a connection site between a prefabricated side wall and a prefabricated bottom slab, wherein the prefabricated side wall and the prefabricated bottom slab are perpendicular to each other;
a rubber bearing is installed on a connection site between a prefabricated top slab and a prefabricated middle column, wherein the prefabricated top slab and the prefabricated middle column are perpendicular to each other;
a rubber bearing is installed on a connection site between a prefabricated middle slab and a prefabricated middle column;
a rubber bearing is installed on a connection site between a prefabricated bottom slab and a prefabricated middle column;
the prestressed tendons are installed within the prestressed reinforcement channels and configured to connect and transfer stress to the prefabricated side walls, the prefabricated top slab, the prefabricated middle slab, the prefabricated bottom slab, and the prefabricated middle column;
the prefabricated top slab, the prefabricated middle slab, the prefabricated bottom slab, and the prefabricated middle column are connected with the waterproof adhesive tape and the rubber bearing, and are configured to add prestress to keep the rubber bearings deformed under a compression state to reach waterproof effects, and
the waterproof adhesive tape is compressed by lateral pressure to make the subway station to form the self-resetting structure.

2. The structure of claim 1 , wherein the waterproof adhesive tape and the deformed rubber bearing are combined to form a waterproof damping member with a shape of “T” or “ .”

3. The structure of claim 1 , wherein the prefabricated side walls are connected by two rows of the prestressed tendons configured to transfer stress to the prefabricated side walls.

4. The structure of claim 1 , wherein the prefabricated middle column is connected by a single row of the prestressed tendon configured to transfer stress to the middle column.

5. The structure of claim 1 , wherein the rubber bearing comprises an inner steel plate fully covered by rubber, wherein the rubber thickness is no less than 5 mm.

6. The structure of claim 1 , wherein
a diameter of the prestressed reinforcement channel matches with a diameter of the prestressed tendon.

7. The structure of claim 1 , wherein multiple detection pipelines are provided aslant on both ends of the prefabricated side wall along the station, and the detection pipelines are located within a range of the waterproof adhesive tape.

8. The structure of claim 1 , wherein the detection pipelines are set to tilt down.

Assignees

• Univ Beijing Technology

Inventors

• Du Xiuli
• Liu Hongtao
• Xu Chengshun
• Wang Zili

Classifications

• E02D29/04 Primary

  Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof (E02D29/10 takes precedence; water-supply or sewerage plants E03; layout of water power plants E02B9/00; making large underground chambers by underground methods only E21D13/00) · CPC title

• E02D29/045

  Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them · CPC title

• E04H9/027

  Preventive constructional measures against earthquake damage in existing buildings · CPC title

• E04B1/98

  against vibrations or shocks (on foundations E02D31/08); against mechanical destruction, e.g. by air-raids (against incendiary damage only E04B1/94; finishing work therefor E04F; buildings withstanding earthquake or the like, shelters, arrangements of splintercatching walls E04H9/00) · CPC title

• E04H9/021

  Bearing, supporting or connecting constructions specially adapted for such buildings · CPC title