|
Hokkaido University Collection of Scholarly and Academic Papers >
Theses >
博士 （工学） >
Study on the characteristics and response control effects of a seismic mass damper system utilizing scrap tire pads
|
Files in This Item:
|
|
|
Related Items in HUSCAP:
|
| Title: | Study on the characteristics and response control effects of a seismic mass damper system utilizing scrap tire pads |
| Other Titles: | スクラップタイヤパッドを利用した地震用マスダンパーシステムの特性と応答制御効果に関する研究 |
| Authors: | PARK, Ji Hyun Browse this author |
| Issue Date: | 23-Mar-2023 |
| Publisher: | Hokkaido University |
| Abstract: | As environmental problems have emerged, attempts have been made to use waste as a building material. Recent studies have proposed and investigated vibration control techniques, including seismic isolation and tuned mass damper systems for earthquakes using waste or used tires. Amid these flows, more recently, a seismic mass damper (SMD) system using scrap tire pads (STPs) for building structures has been proposed. The STP unit can be made by cutting the tread part of radial tires and laminating multilayers. In the SMD system, an adequate number of STPs are placed in the vibration control story at the top of the mainframe of a superstructure to exert a mass damper effect during an earthquake. It is expected that STPs act as the necessary spring, damper, and bearing functions for the SMD system. The system is expected to mitigate the peak responses of a building structure during an earthquake, resulting in a reduction of the damage to humans, structures, and non-structural members. The reuse of tires for STPs contributes to the solution of environmental problems such as excessive waste generation. Although past studies proposed various systems including base-isolated structures using waste or used tires and investigated the characteristics through experiments, no studies on the SMD systems using STPs have been conducted. No dynamic loading tests on STPs were conducted except for free vibration tests, thus the dynamic behavior of STPs for various parameters including the loading amplitude and speed, and surface pressure effects has not been clarified yet. In addition, the vibration control effects of the SMD system utilizing STPs subjected to seismic motions have not been examined.
This dissertation aimed to grasp the availability of the SMD system using STPs for seismic response reduction of buildings. The following specific objectives were examined for this goal: (1) to investigate the mechanical behavior of STPs under horizontal and vertical loadings through experiments; (2) to assess the performance of STPs concerning horizontal stiffness and damping characteristics; (3) to numerically evaluate the control effects of the SMD using STPs by earthquake response analyses. In this research, loading tests using STP unit specimens were conducted to understand the mechanical characteristics of STPs. Additionally, to evaluate the effectiveness of the SMD system, seismic response simulation was performed under various input motions using the mechanical properties obtained from the experiments. |
| Conffering University: | 北海道大学 |
| Degree Report Number: | 甲第15371号 |
| Degree Level: | 博士 |
| Degree Discipline: | 工学 |
| Examination Committee Members: | (主査) 准教授 白井 和貴, 教授 岡崎 太一郎, 教授 蟹江 俊仁 |
| Degree Affiliation: | 工学院（建築都市空間デザイン専攻） |
| Type: | theses (doctoral) |
| URI: | http://hdl.handle.net/2115/89575 |
| Appears in Collections: | 課程博士 (Doctorate by way of Advanced Course) > 工学院(Graduate School of Engineering)
学位論文 (Theses) > 博士 （工学）
|
|
