scholarly journals SEISMIC RESPONSE CONTROL OF SUPER HIGH-RISE RC BUILDINGS UTILIZING BUCKLING RESTRAINED BRACES AND THE DESIGN OF BRACE CONNECTIONS

2015 ◽  
Vol 80 (710) ◽  
pp. 647-657
Author(s):  
Yusuke MAIDA ◽  
Toshio MAEGAWA ◽  
Toshihiko DEMIZU ◽  
Makoto HAMADA ◽  
Zhe QU ◽  
...  
Keyword(s):  
Seismic Response ◽  
Rc Buildings ◽  
Response Control ◽  
Seismic Response Control ◽  
High Rise ◽  
Buckling Restrained Braces

TREND OF SEISMIC RESPONSES OF EXISTING HIGH-RISE RC BUILDINGS

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yusuke Maida ◽  
Tomofusa Akita ◽  
Nobuyuki Izumi
Keyword(s):  
Seismic Response ◽  
Ground Motion ◽  
Seismic Isolation ◽  
Rc Buildings ◽  
Response Control ◽  
Control Structures ◽  
Seismic Ground Motion ◽  
Seismic Response Control ◽  
High Rise ◽  
Seismic Resistant

This report presents studies on the seismic response of high-rise RC buildings in Japan. Data concerning the seismic response of approximately 600 high-rise RC buildings constructed from 1972 to 2015 were collected. Seismic response characteristics were analyzed by focusing on differences in seismic resistant structures, seismic response control structures, and seismic isolation structures. The results indicated that the maximum story drift ratio response under the level 1 study seismic ground motion (R) and the level 2 study seismic ground motion (R) criteria is smaller for seismic isolation structures than that of the seismic resistant structure and seismic response control structures. In addition, focusing on the R-R relationship, the correlation is low in the seismic resistant and seismic response control structures, but is almost linear in the seismic isolation structure. This is because the seismic isolation structure is designed such that the superstructure does not become plastic even with level 2 seismic ground motion.

SEISMIC RESPONSE CONTROL OF SUPER HIGH-RISE RC BUILDINGS UTILIZING BUCKLING RESTRAINED BRACES

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Yusuke Maida ◽  
Toshio Maegawa ◽  
Toshihiko Demizu ◽  
Makoto Hamada ◽  
Zhe Qu ◽  
...  
Keyword(s):  
Seismic Response ◽  
Reference Model ◽  
Time History ◽  
Frame Structure ◽  
Nonlinear Time History Analysis ◽  
Rc Beams ◽  
Rc Buildings ◽  
Response Control ◽  
Seismic Response Control ◽  
High Rise

In this paper, the seismic response control of BRBs in super high-rise RC buildings subjected to earthquake ground motions is investigated by nonlinear time history analysis. The analysis model is a 36 stories super high-rise RC building. A bare frame structure is used as a reference model. The parameter of the analysis was the configuration of the BRBs. Two kinds of seismic response controlled building models were examined. In one model, the RC frame was braced by BRBs in each story (each model) and in the other one, each BRB spanned over two stories (over model). The RC beams in the braced span of the over model were abandoned. By comparing the maximum story drift ratio of the reference model with the braced ones, the seismic response control was confirmed for both the each model and the over model. In addition, the over model exhibited almost the same seismic response control as compared to the each model, although the number of BRBs was significantly reduced and the RC beams in the braced span were abandoned.

Seismic Response Control for Four High-Rise Building Structures Using Connected Control Method

2007 ◽  
Author(s):  
Kazuto Seto ◽  
Chinori Iio ◽  
Shigeru Inaba ◽  
Shingo Mitani ◽  
Fadi Dohnal ◽  
...  
Keyword(s):  
Seismic Response ◽  
Active Control ◽  
Control Method ◽  
Control Force ◽  
Building Structures ◽  
Response Control ◽  
Control Approach ◽  
Seismic Response Control ◽  
High Rise ◽  
Lq Control

This paper presents a vibration control method for multiple high-rise buildings against large earthquake motion. This method is called as “Connected Control Method (CCM)” and has the merit of obtaining enough control force to protect high-rise buildings from large earthquakes using passive and semiactive devices. In this paper, first a modeling approach for four scaled building structures is shown and effectiveness of the CCM using LQ control approach for them is demonstrated by seismic response control results. Next, in order to reduce the supplied power, a semi-active control approach in place of active control is applied for the CCM. For this purpose, a new MR damper is developed and designed to have a close performance with results of the LQ control. This performance is verified by measured frequency responses.

Seismic response control of adjacent high-rise buildings linked by the Tuned Liquid Column Damper-Inerter (TLCDI)

2020 ◽  
Vol 223 ◽  
pp. 111169 ◽  
Author(s):  
Qinhua Wang ◽  
Haoshuai Qiao ◽  
Dario De Domenico ◽  
Zhiwen Zhu ◽  
Yi Tang
Keyword(s):  
Seismic Response ◽  
Liquid Column ◽  
Response Control ◽  
Seismic Response Control ◽  
Tuned Liquid Column Damper ◽  
High Rise ◽  
Liquid Column Damper

scholarly journals A NEW SEISMIC RESPONSE CONTROL TECHNIQUE FOR BUILDINGS USING BLOCK AND TACKLE

2019 ◽  
Vol 29 (2) ◽  
Author(s):  
Taiki Saito
Keyword(s):  
Control System ◽  
Seismic Response ◽  
Shaking Table Test ◽  
Core Structure ◽  
Shaking Table ◽  
Control Technique ◽  
Response Control ◽  
Seismic Response Control ◽  
High Rise ◽  
The Core

The author proposed a new seismic response control system using a block and tackle (hereinafter, referred to as a dynamic pulley damper system) developed especially for the high-rise buildings. The proposed system has a configuration where a damper is installed on the track of the cable-stayed wire, amplifying the amount of movement of the wire by using a movable pulley that increases the damping effect to reduce the vibration of a building. we apply this system to connect the core structure (parking tower) and the surrounding frame (housing part) of a high-rise building. This system aims to reduce the earthquake response of the building by the force of the damper attached to the core structure. To verify the effectiveness of this response control system, two types of shaking table tests were conducted; one is the large-scale shaking table test using a magnetic damper, an-other one is the small-scale shaking table test using a steel damper. The mathematical model of the dynamic pulley damper system to implement the frame analysis was developed and the results of simulation analysis are compared with the experiments.

Sign in / Sign up

Export Citation Format

Share Document