scholarly journals COLLAPSE BEHAVIOR OF 18-STORY STEEL MOMENT FRAME ON SHAKING TABLE TEST UNDER LONG PERIOD GROUND MOTION

2018 ◽  
Vol 83 (746) ◽  
pp. 625-635 ◽  
Author(s):  
Jun KUBOTA ◽  
Motomi TAKAHASHI ◽  
Yoshitaka SUZUKI ◽  
Yoshikazu SAWAMOTO ◽  
Yuji KOETAKA ◽  
...  
Keyword(s):  
Ground Motion ◽  
Shaking Table Test ◽  
Shaking Table ◽  
Moment Frame ◽  
Steel Moment Frame ◽  
Long Period ◽  
Collapse Behavior ◽  
Long Period Ground Motion

Shaking Table Test of Quarter Scale 20 Story RC Moment Frame Building Subjected to Long Period Ground Motions

2016 ◽  
Vol 11 (1) ◽  
pp. 97-105 ◽  
Author(s):  
Kuniyoshi Sugimoto ◽  
◽  
Kenji Yonezawa ◽  
Hideo Katsumata ◽  
Hiroshi Fukuyama ◽  
...  
Keyword(s):  
Shaking Table Test ◽  
Shaking Table ◽  
Test Results ◽  
Nonlinear Fem ◽  
Moment Frame ◽  
Building Model ◽  
Long Period ◽  
Frame Building ◽  
Long Duration ◽  
Current Design

Shaking table test of a quarter-scale 20-story reinforced concrete building model was carried out. Employed input waves were kinds of long period and long duration ground motion. Test results showed that structural slabs were fully effective for building strength, which could be expressed in detailed analysis using nonlinear FEM. However, the observed hysteretic damping after yielding was fairly smaller than the expected by the current design custom, which caused smaller and unsafe estimated response than that observed in the test.

Seismic Behavior of Steel Moment Frames with Mechanical Hinge Beam-to-Column Connections

2020 ◽  
Vol 20 (06) ◽  
pp. 2040005
Author(s):  
Han Peng ◽  
Jinping Ou ◽  
Andreas Schellenberg ◽  
Frank Mckenna ◽  
Stephen Mahin
Keyword(s):  
Seismic Behavior ◽  
Shaking Table Test ◽  
Plastic Hinge ◽  
Time History ◽  
Shaking Table ◽  
Base Shear ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Moment Frame ◽  
Steel Moment Frame

This paper presents an investigation on the seismic behavior of steel moment frames with mechanical hinge beam-to-column connections. The connection uses a mechanical hinge to carry shear force and a pair of buckling-restrained steel plates bolted to the beam flange to transfer bending moment. The moment-rotation behavior of the connection was theoretically studied. A nonlinear numerical model for steel moment frames under strong earthquakes was developed and validated using a shaking table test of an 18-story steel moment frame at the E-Defense facility. Then, nonlinear static and time-history analyses were conducted to compare the seismic behavior of a conventional steel moment frame and three innovative steel frames equipped mechanical hinge connections in terms of roof displacement, base shear, inter-story drift ratio, and plastic hinge rotation.

scholarly journals Effects of long-period processing on structural collapse predictions

2020 ◽  
pp. 875529302093669
Author(s):  
Kenny Buyco ◽  
Becky Roh ◽  
Thomas H. Heaton
Keyword(s):  
Ground Motion ◽  
Moment Frame ◽  
Steel Moment Frame ◽  
Pass Filter ◽  
Long Period ◽  
Frame Building ◽  
Building Models ◽  
Ground Motion Records ◽  
Large Earthquakes ◽  
High Pass

We investigate the extent to which applying high-pass filters to ground motion records affects the collapse capacity of building models. We consider 26 ground motion records from seven large earthquakes and high-pass filter them with corner periods, [Formula: see text], ranging from 10 to 60 s. We perform incremental dynamic analysis on 9-, 20-, and 55-story steel moment-frame building models with fundamental periods of 1.88, 3.50, and 6.10 seconds, respectively. Even though filters with [Formula: see text] have a minimal effect on the collapse capacities of the building models, we find that for a few motions, collapse capacities can increase by more than 50%, if Tc = 10 or 15 s, even for the 9-story models. We find that the collapse capacities with respect to raw, uncorrected records are generally similar to those of the tilt-corrected versions, indicating that removing long-period noise with high-pass filters can make collapse predictions less accurate, if Tc < 20 s.

Study on Seismic Isolation Device with Magnetic Damper for Long Period Ground Motion

2021 ◽  
Vol 2021.58 (0) ◽  
pp. C042
Author(s):  
Naoto KANAYAMA ◽  
Hiroyuki KIMURA ◽  
Masahiro SEKIMOTO ◽  
Tohru SASAKI
Keyword(s):  
Ground Motion ◽  
Seismic Isolation ◽  
Long Period ◽  
Long Period Ground Motion ◽  
Isolation Device

Measures for the Long-Period Ground Motion

2019 ◽  
pp. 39-66
Author(s):  
Hideo Takabatake ◽  
Yukihiko Kitada ◽  
Izuru Takewaki ◽  
Akiko Kishida
Keyword(s):  
Ground Motion ◽  
Long Period ◽  
Long Period Ground Motion
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