Pendulum impact loading tests of precast concrete columns with various column base connections

2022 ◽  
Vol 252 ◽  
pp. 113736
Author(s):  
Yun Zhou ◽  
Jianbo Yang ◽  
Xianming Luo ◽  
Hyeon-Jong Hwang ◽  
Hui Chen ◽  
...  
Keyword(s):  
Impact Loading ◽  
Precast Concrete ◽  
Concrete Columns ◽  
Loading Tests ◽  
Base Connections ◽  
Column Base ◽  
Pendulum Impact

Experimental study on the seismic behavior of precast concrete column with grouted corrugated sleeves and debonded longitudinal reinforcements

2019 ◽  
Vol 22 (15) ◽  
pp. 3277-3289 ◽  
Author(s):  
Jun Chen ◽  
Chenhui Zhao ◽  
Faxing Ding ◽  
Ping Xiang
Keyword(s):  
Axial Load ◽  
Seismic Behavior ◽  
Precast Concrete ◽  
Concrete Columns ◽  
Damage Spreading ◽  
Loading Tests ◽  
Column Foundation ◽  
Low Cyclic Loading ◽  
Cyclic Loading Tests ◽  
Seismic Behaviors

The seismic performance and the influence of debonded longitudinal reinforcements at the footing on the precast concrete columns connected with the embedded grouted corrugated sleeve were investigated experimentally in this research. Low cyclic loading tests were carried out on eight bending columns and four shear columns, considering the designed parameters of the partial debonding of the longitudinal reinforcements above the column–foundation interface, the axial load index, and the strength of the stirrups. Experimental results indicate that the partial debonding of the longitudinal reinforcements heavily influenced the damage spreading of the bending columns, but does not affect the damages of the shear columns. Compared to the columns without debonded longitudinal reinforcements, the seismic behaviors in terms of the ductility and energy dissipation can be improved clearly by the partial debonding of the longitudinal reinforcements for bending columns, but there was no clear improvement for shear columns. In addition, with the decrease of the axial load index or the increase of the strength of the stirrups, the seismic behaviors of the precast columns with the partial debonding of the longitudinal reinforcements are improved largely.

Using composite yield mechanism to mitigate seismic damage to exposed steel column base connections

2021 ◽  
Vol 232 ◽  
pp. 111877
Author(s):  
Yao Cui ◽  
Fengzhi Wang ◽  
Cancan Yang ◽  
Hao Li ◽  
Yangzi He
Keyword(s):  
Seismic Damage ◽  
Steel Column ◽  
Base Connections ◽  
Column Base

Performance-based assessment of seismic-resilient steel moment resisting frames equipped with innovative column base connections

Structures ◽  
2021 ◽  
Vol 32 ◽  
pp. 1646-1664
Author(s):  
Elena Elettore ◽  
Annarosa Lettieri ◽  
Fabio Freddi ◽  
Massimo Latour ◽  
Gianvittorio Rizzano
Keyword(s):  
Steel Moment Resisting Frames ◽  
Moment Resisting Frames ◽  
Performance Based Assessment ◽  
Moment Resisting ◽  
Base Connections ◽  
Column Base

Behavior of exposed column-base connections with four internal anchor bolts under seismic loading

Structures ◽  
2021 ◽  
Vol 34 ◽  
pp. 105-119
Author(s):  
Jianrong Pan ◽  
Ruike Huang ◽  
Jing Xu ◽  
Peng Wang ◽  
Zhan Wang ◽  
...  
Keyword(s):  
Seismic Loading ◽  
Anchor Bolts ◽  
Base Connections ◽  
Column Base

Experimental evaluation of column base connections composed by different grout types subject to shear

2021 ◽  
Vol 120 ◽  
pp. 105090
Author(s):  
Laura Maria Paes de Abreu ◽  
Hermes Carvalho ◽  
Ricardo Hallal Fakury ◽  
Francisco Carlos Rodrigues ◽  
Rodrigo Barreto Caldas
Keyword(s):  
Experimental Evaluation ◽  
Base Connections ◽  
Column Base

Seismic performance of encased CFT column base connections

2008 ◽  
pp. 235-241
Author(s):  
Y Xu ◽  
Y Chen ◽  
X Lv ◽  
W Wang ◽  
Y Wang
Keyword(s):  
Seismic Performance ◽  
Cft Column ◽  
Base Connections ◽  
Column Base
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