Earthquake-resistant reinforcement assembly

Patent metadata

Field	Value
Publication number	US-9601220-B2
Application number	US-201214365207-A
Country	US
Kind code	B2
Filing date	Dec 11, 2012
Priority date	Dec 16, 2011
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

An earthquake-resistant reinforcement assembly according to one embodiment of the present invention comprises: a rod of which one end is hinge-coupled to an upper structure; a combination pin which is formed at the other end of the rod and is extended to diametrically cross the rod; and a bracket which is provided on a partition wall of a nuclear reactor containment building and is coupled with the other end, wherein the bracket can withstand a tensile load and a torsional load by including first and second members which face each other and are extended in parallel to load the rod thereon, and groove portions which are formed at the first and second members to be coupled with the combination pin to form the shape of a double bracket.

First claim

The invention claimed is:

1. An earthquake-resistant reinforcement assembly formed to support the longitudinal and transverse directional behavior of a nuclear reactor upper structure when an earthquake occurs, comprising:
a rod an end of which is hinge-coupled to the upper structure;
a coupling pin formed at the other end of the rod, and extended to diametrically cross the rod; and
a bracket installed at a partition wall of a nuclear reactor containment building, and coupled to the other end thereof,
wherein the bracket comprises:
a first and a second member extended in parallel to face each other so as to allow the rod to be placed therewithin; and
groove portions formed on the first and the second member, respectively, to be coupled to the coupling pin,

wherein lateral surfaces constituting each of the groove portions are formed to be inclined at a predetermined angle toward the upper structure from a vertical surface thereof,
wherein inclinations of at least one of the lateral surfaces for each of the groove portions begin at openings of the groove portions, and
wherein the groove portions are formed so that cross-sectional areas of the groove portions increase as the groove portions extend away from the openings so as to increase an area in contact with the coupling pin in an axial direction of the coupling pin.

2. The earthquake-resistant reinforcement assembly of claim 1 , wherein both of the lateral surfaces constituting the groove portions are formed to be inclined by 5 to 20 degrees toward the upper structure from the vertical surface thereof.

3. The earthquake-resistant reinforcement assembly of claim 1 , wherein the groove portions comprise a first and a second surface facing each other, and the area of the first surface adjacent to the upper structure is formed to be greater than that of the second surface.

4. An earthquake-resistant reinforcement assembly formed to support the longitudinal and transverse directional behavior of a nuclear reactor upper structure when an earthquake occurs, comprising:
a rod an end of which is hinge-coupled to the upper structure;
a coupling pin formed at the other end of the rod, and extended to diametrically cross the rod; and
a bracket installed at a partition wall of a nuclear reactor containment building, and coupled to the other end thereof,
wherein the bracket comprises:
a first and a second member extended in parallel to face each other so as to allow the rod to be placed therewithin; and
groove portions formed on the first and the second member, respectively, to be coupled to the coupling pin,

wherein an upper portion of the bracket is open and a lower portion thereof is closed, and the lower portion of the first and the second member is expanded in the thickness compared to the upper portion thereof to support the upper structure during the torsional behavior of the upper structure,
wherein lateral surfaces constituting each of the groove portions are formed to be inclined at a predetermined angle toward the upper structure from a vertical surface thereof,
wherein inclinations of at least one of the lateral surfaces for each of the groove portions begin at openings of the groove portions, and
wherein the groove portions are formed so that cross-sectional areas of the groove portions increase as the groove portions extend away from the openings so as to increase an area in contact with the coupling pin in an axial direction of the coupling pin.

5. The earthquake-resistant reinforcement assembly of claim 4 , wherein the groove portions comprise a first and a second surface facing each other, and the area of the first surface adjacent to the upper structure is formed to be greater than that of the second surface.

6. The earthquake-resistant reinforcement assembly of claim 4 , wherein both of the lateral surfaces constituting the groove portions are formed to be inclined by 5 to 20 degrees toward the upper structure from the vertical surface thereof.

7. The earthquake-resistant reinforcement assembly of claim 1 , wherein the rod is rotated around the end of the rod which is hinge-coupled to the upper structure so as to have the other end coupled to the bracket.

8. The earthquake-resistant reinforcement assembly of claim 1 , wherein the bracket is installed at the partition wall by welding.

9. The earthquake-resistant reinforcement assembly of claim 1 , wherein the rod is formed with plurality of length-adjustable bodies to allow adjustment to the length of the rod.

Assignees

• Doosan Heavy Ind & Construction Co Ltd

Inventors

• Son Jung Dae
• Kim Sung Hwan
• Kim Yong Kyu

Classifications

• Y02E30/40

  Cross-Sectional Technologies · mapped topic

• G21C13/024 Primary

  Supporting constructions for pressure vessels or containment vessels · CPC title

• G21D1/00

  Details of nuclear power plant (control G21D3/00) · CPC title

• G21C9/00

  Emergency protection arrangements structurally associated with the reactor {, e.g. safety valves provided with pressure equalisation devices}(emergency cooling arrangements G21C15/18) · CPC title

• G21C1/00 Primary

  Reactor types · CPC title