Earthquake Vibration Control In Building Frame
A Project Report
On
“Earthquake Vibration Control In Building Frames”
Submitted in partial fulfillment of
The requirements for the degree of
Bachelor of Engineering
Department of Civil Engineering
i
ABSTRACT
The design of building and bridge structures for earthquake resistance by the ductile design approach is covered, including performance criteria, structural configuration, design seismic forces, mechanisms of post-elastic deformation, capacity design, detailing of reinforcement for ductility and control of deflections. Design using base isolation and mechanical energy dissipating devices is also outlined. The extensive use of precast concrete in buildings in New Zealand is described. Finally the seismic assessment and upgrading of old structures and the earthquake resistance of lifelines of communities
(transportation, utilities and communications) are briefly considered.
For control of earthquakes, two buildings are outlined: one building is equipped with hysteretic steel dampers made of low-yield steel and another building is equipped with oil dampers. Their design concept, design criteria, and verification are presented. For control of strong winds, two design projects are outlined: one building has tuned mass damper
(TMD) systems in which an ice thermal storage tank is adopted as the moving mass, and another building has dampers made of high-damping rubber installed in the precast concrete panels used for exterior walls. On-site tests are conducted to verify the performance of the dampers, and numerical analyses are conducted to measure the enhanced habitability performance caused by the introduction of the dampers.
ii
INDEX
----------------------------------1. INTRODUCTION
1.1 What Is An Earthquake?.......................................................................................1
1.2 Historical Development Of Earthquake………………………………………...1
1.3 How To Control Earthquake Vibrations In
On
“Earthquake Vibration Control In Building Frames”
Submitted in partial fulfillment of
The requirements for the degree of
Bachelor of Engineering
Department of Civil Engineering
i
ABSTRACT
The design of building and bridge structures for earthquake resistance by the ductile design approach is covered, including performance criteria, structural configuration, design seismic forces, mechanisms of post-elastic deformation, capacity design, detailing of reinforcement for ductility and control of deflections. Design using base isolation and mechanical energy dissipating devices is also outlined. The extensive use of precast concrete in buildings in New Zealand is described. Finally the seismic assessment and upgrading of old structures and the earthquake resistance of lifelines of communities
(transportation, utilities and communications) are briefly considered.
For control of earthquakes, two buildings are outlined: one building is equipped with hysteretic steel dampers made of low-yield steel and another building is equipped with oil dampers. Their design concept, design criteria, and verification are presented. For control of strong winds, two design projects are outlined: one building has tuned mass damper
(TMD) systems in which an ice thermal storage tank is adopted as the moving mass, and another building has dampers made of high-damping rubber installed in the precast concrete panels used for exterior walls. On-site tests are conducted to verify the performance of the dampers, and numerical analyses are conducted to measure the enhanced habitability performance caused by the introduction of the dampers.
ii
INDEX
----------------------------------1. INTRODUCTION
1.1 What Is An Earthquake?.......................................................................................1
1.2 Historical Development Of Earthquake………………………………………...1
1.3 How To Control Earthquake Vibrations In