Non-slip-type restoring force characteristics of an exposed-type column base

2005 ◽  
Vol 61 (7) ◽  
pp. 942-961 ◽  
Author(s):  
Takao Takamatsu ◽  
Hiroyuki Tamai
Keyword(s):  
Restoring Force ◽  
Force Characteristics ◽  
Column Base

HYSTERESIS MODEL AND RESTORING FORCE CHARACTERISTICS OF NON-SLIP-TYPE EXPOSED COLUMN-BASE SUBJECTED TO VARIABLE AXIAL-FORCE AND BENDING

2012 ◽  
Vol 77 (681) ◽  
pp. 1755-1762
Author(s):  
Teruaki YAMANISHI ◽  
Takao TAKAMATSU ◽  
Hiroyuki TAMAI ◽  
Kiichirou SAWADA ◽  
Akira MATSUO
Keyword(s):  
Axial Force ◽  
Hysteresis Model ◽  
Restoring Force ◽  
Force Characteristics ◽  
Column Base

scholarly journals MODELS OF RESTORING FORCE CHARACTERISTICS & RESISTANT MECHANISMS OF EXPOSED COLUMN-BASE UNDER CONSTANT TENSILE AXIAL-FORCE

2009 ◽  
Vol 74 (637) ◽  
pp. 561-567 ◽  
Author(s):  
Teruaki YAMANISHI ◽  
Takao TAKAMATSU ◽  
Hiroyuki TAMAI ◽  
Takayoshi MATSUMURA ◽  
Akira MATSUO
Keyword(s):  
Axial Force ◽  
Restoring Force ◽  
Force Characteristics ◽  
Column Base

scholarly journals EXPERIMENTAL STUDY ON THE EXPOSED COLUMN-BASE EXHIBITS SPINDLE TYPE RESTORING FORCE CHARACTERISTICS BY PLASTICITY OF ANCHOR BOLT

2010 ◽  
Vol 75 (649) ◽  
pp. 651-660
Author(s):  
Toru WATANABE ◽  
Tatsuya NAKANO ◽  
Tsuyoshi HAGINO ◽  
Haruyoshi KADOYA ◽  
Hiroshi MASUDA ◽  
...  
Keyword(s):  
Experimental Study ◽  
Restoring Force ◽  
Anchor Bolt ◽  
Force Characteristics ◽  
Column Base

Behavior of exposed column-base exhibiting spindle-type restoring force characteristics

2009 ◽  
Author(s):  
H Kadoya ◽  
T Hagino ◽  
H Masuda ◽  
K Morita ◽  
T Nakano ◽  
...  
Keyword(s):  
Restoring Force ◽  
Force Characteristics ◽  
Column Base

The Numerical Simulation Analysis of Fracture Properties and Restoring Force Characteristics of Bare Base of Steel Column

2011 ◽  
Vol 189-193 ◽  
pp. 4330-4334
Author(s):  
Huai Ren Guo ◽  
Yun Peng Chu
Keyword(s):  
Numerical Simulation ◽  
Axial Compression ◽  
Compression Ratio ◽  
Large Scale ◽  
Structure Design ◽  
Restoring Force ◽  
Axial Compression Ratio ◽  
Steel Column ◽  
Force Characteristics ◽  
Column Base

The design of steel column base plays a very important role in steel structure design. Through large-scale analysis software ANSYS, this paper analyzes the steel column base by finite element numerical simulation nonlinear analysis,and discuss the fracture behavior and restoring force characteristics of steel pipe column in different thickness and axial compression ratio,and the link between the two. The results showed that, (1) the section of most likely break focus on the bottom of vertical load plane in the middle of the steel column base. (2) with the increase of thickness, anti-cracking ability increased gradually.(3) Axial compression ratio of the specimen has little effect for anti-cracking ability relatively. (4) With the increase of anti-cracking ability, the seismic behavior of specimens gets heightened.

scholarly journals Seismic Strengthening Effects of Full-Size Reinforced Concrete Frame Retrofitted with Novel Concrete-Filled Tube Modular Frame by Pseudo-Dynamic Testing

2021 ◽  
Vol 11 (11) ◽  
pp. 4898
Author(s):  
Jin-Seon Kim ◽  
Ju-Seong Jung ◽  
Dong-Keun Jung ◽  
Eui-Yong Kim ◽  
Kang-Seok Lee
Keyword(s):  
Dynamic Analysis ◽  
Shear Failure ◽  
Dynamic Testing ◽  
Seismic Intensity ◽  
Seismic Retrofitting ◽  
Restoring Force ◽  
Rc Structures ◽  
Linear Dynamic ◽  
Non Linear ◽  
Force Characteristics

The present study proposes a new seismic retrofitting method using a concrete-filled tube modular frame (CFT-MF) system, a novel technique to overcome and improve the limitations of existing seismic strengthening methods. This CFT-MF seismic retrofitting method makes the most of the advantages of both concrete and steel pipes, thereby significantly improving constructability and increasing integration between the existing structure and the reinforcement joints. This method falls into the category of typical seismic retrofitting methods that focus on increasing strength, in which the required amount of seismic reinforcement can be easily estimated. Therefore, the method provides an easy solution to improving the strength of existing reinforced concrete (RC) structures with non-seismic details that are prone to shear failure. In the present study, a full-size two-story test frame modeled from existing domestic RC structures with non-seismic details was subjected to pseudo-dynamic testing. As a result, the effect of the CFT-MF system, when applied to existing RC structures, was examined and verified, especially as to its seismic retrofitting performance, i.e., restoring force characteristics, stiffness reinforcement, and seismic response control. In addition, based on the pseudo-dynamic testing results, a restoring force characteristics model was proposed to implement non-linear dynamic analysis of a structure retrofitted with the CFT-MF system (i.e., the test frame). Finally, based on the proposed restoring force characteristics, non-linear dynamic analysis was conducted, and the results were compared with those obtained by the pseudo-dynamic tests. The results showed that the RC frame (building) with no retrofitting measures applied underwent shear failure at a seismic intensity of 200 cm/s2, the threshold applied in seismic design in Korea. In contrast, in the frame (building) retrofitted with the CFT-MF system, only minor earthquake damage was observed, and even when the maximum seismic intensity (300 cm/s2) that may occur in Korean was applied, small-scale damage was observed. These results confirmed the validity of the seismic retrofitting method based on the CFT-MF system developed in the present study. The non-linear dynamic analysis and the pseudo-dynamic test showed similar results, with an average deviation of 10% or less in seismic response load and displacement.

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