Lever viscoelastic damping wall assembly

Patent metadata

Field	Value
Publication number	US-9316014-B2
Application number	US-201414334635-A
Country	US
Kind code	B2
Filing date	Jul 17, 2014
Priority date	Jan 17, 2014
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A lever viscoelastic damping wall assembly includes a first wall, a second wall and a viscoelastic damper. The first and second walls are connected respectively to a first structural member and a second structural member. The viscoelastic damper includes a swing rod connected pivotally to the first and second walls, a first viscoelastic unit connected between the first wall and an end portion of the swing rod, and a second viscoelastic unit connected between the second wall and an opposite end portion of the swing rod. The swing rod is driven to pivot relative to the first and second walls, and to thereby generate shear deformations of the first and second viscoelastic units to damp a relative movement between the first and second structural members.

First claim

What is claimed is:

1. A lever viscoelastic damping wall assembly adapted for damping a relative movement between a first structural member and a second structural member in a first direction, the first and second structural members being spaced apart from each other, said lever viscoelastic damping wall assembly comprising:
a first wall adapted to be connected to the first structural member, and formed with at least one pivot hole;
a second wall adapted to be connected to the second structural member, and formed with at least one pivot hole, said pivot holes of said first and second walls being spaced apart from each other in a second direction perpendicular to the first direction; and
a viscoelastic damper including
at least one swing rod that has a middle portion formed with first and second extending holes, and first and second end portions disposed respectively at opposite sides of said middle portion, said first and second extending holes being aligned respectively with said pivot holes of said first and second walls,
at least one first viscoelastic unit that is connected between said first wall and said first end portion of said swing rod,
at least one second viscoelastic unit that is connected between said second wall and said second end portion of said swing rod,
at least one first bolt assembly that extends through said pivot hole of said first wall and said first extending hole of said swing rod to interconnect pivotally said swing rod and said first wall, and
at least one second bolt assembly that extends through said pivot hole of said second wall and said second extending hole of said swing rod to interconnect pivotally said swing rod and said second wall;

wherein, the first and second structural members drive a relative movement between said first and second walls in the first direction due to the relative movement therebetween, so as to pivot said swing rod relative to said first and second walls, and to thereby generate shear deformations of said first and second viscoelastic units to damp the relative movement therebetween;
wherein said first wall is adapted to be connected to a lower end of the first structural member, said second wall being adapted to be connected to an upper end of the second structural member; and
wherein:
each of said first and second walls further has a main wall segment; and
each of said first and second viscoelastic units includes
a viscoelastic member that has a side connected fixedly to said main wall segment of the corresponding one of said first and second walls,
a connecting member that is connected fixedly to an opposite side of said viscoelastic member opposite to said main wall segment of the corresponding one of said first and second walls, and
a bolt assembly that interconnects pivotally said connecting member and the corresponding one of said first and second end portions of said swing rod.

2. A lever viscoelastic damping wall assembly adapted for damping a relative movement between a first structural member and a second structural member in a first direction, the first and second structural members being spaced apart from each other, said lever viscoelastic damping wall assembly comprising:
a first wall adapted to be connected to the first structural member, and formed with at least one pivot hole;
a second wall adapted to be connected to the second structural member, and formed with at least one pivot hole, said pivot holes of said first and second walls being spaced apart from each other in a second direction perpendicular to the first direction; and
a viscoelastic damper including
at least one swing rod that has a middle portion formed with first and second extending holes, and first and second end portions disposed respectively at opposite sides of said middle portion, said first and second extending holes being aligned respectively with said pivot holes of said first and second walls,
at least one first viscoelastic unit that is connected between said first wall and said first end portion of said swing rod,
at least one second viscoelastic unit that is connected between said second wall and said second end portion of said swing rod,
at least one first bolt assembly that extends through said pivot hole of said first wall and said first extending hole of said swing rod to interconnect pivotally said swing rod and said first wall, and
at least one second bolt assembly that extends through said pivot hole of said second wall and said second extending hole of said swing rod to interconnect pivotally said swing rod and said second wall;

wherein, the first and second structural members drive a relative movement between said first and second walls in the first direction due to the relative movement therebetween, so as to pivot said swing rod relative to said first and second walls, and to thereby generate shear deformations of said first and second viscoelastic units to damp the relative movement therebetween;
wherein said first wall is adapted to be connected to a lower end of the first structural member, said second wall being adapted to be connected to an upper end of the second structural member; and
wherein:
said first wall further has an end wall segment that is adapted to be proximate to the first structural member, said second wall further having an end wall segment that is adapted to be proximate to the second structural member; and
each of said first and second viscoelastic units includes
a viscoelastic member that is connected fixedly to one side of said end wall segment of the corresponding one of said first and second walls opposite to the corresponding one of the first and second structural members,
a connecting member that includes
a plate segment connected fixedly to one side of said viscoelastic member opposite to said end wall segment of the corresponding one of said first and second walls, and
a connecting segment extending from one side of said plate segment opposite to said viscoelastic member, and

a bolt assembly that interconnects pivotally said connecting segment and the corresponding one of said first and second end portions of said swing rod.

Assignees

• Nat Applied Res Laboratories

Inventors

• Chou Chung-Che
• Tsuang Steven
• Chen Yung-Hsiang
• Chang Luh-Maan

Classifications

• E04H9/024

  Structures with steel columns and beams · CPC title

• E04G23/0218

  Increasing or restoring the load-bearing capacity of building construction elements (E04G23/0203 and E04G23/0266 take precedence) · CPC title

• E04H9/027

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

• E04H9/14 Primary

  against other dangerous influences, e.g. tornadoes, floods · CPC title

• E04H9/022

  and comprising laminated structures of alternating elastomeric and rigid layers · CPC title