Hysteretic behavior of T-shaped walls reinforced by high-strength bars: Cyclic loading tests and modelling

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 1376-1393
Author(s):  
Xiangyong Ni
Keyword(s):  
Cyclic Loading ◽  
High Strength ◽  
Hysteretic Behavior ◽  
Loading Tests ◽  
Cyclic Loading Tests

Experimental Research on the Influence of the Pile Type and Stirrup on the Seismic Performance of PHC Piles

2012 ◽  
Vol 256-259 ◽  
pp. 2079-2084 ◽  
Author(s):  
Tie Cheng Wang ◽  
An Gao ◽  
Hai Long Zhao
Keyword(s):  
Energy Dissipation ◽  
Cyclic Loading ◽  
Seismic Performance ◽  
High Strength Concrete ◽  
High Strength ◽  
Loading Tests ◽  
Energy Dissipation Capacity ◽  
Pile Type ◽  
Cyclic Loading Tests ◽  
Reversed Cyclic

The influence of the pile type and the stirrup on the seismic performance was evaluated based on the results of reversed cyclic loading tests on the four prestressed high strength concrete (PHC) piles. It is indicated that the AB-type pile has the better seismic performance than the A-type pile from the results. The bearing capacity does not increase obviously with decreasing of the stirrup spacing and increasing of the stirrup diameter. The degradation of stiffness does not decrease significantly with decreasing of the stirrup spacing and increasing of the stirrup diameter. The energy dissipation capacity is improved with increasing of the stirrup diameter and decreasing of the stirrup spacing.

Low cyclic loading tests and fatigue damage models of concrete bridge piers reinforced with high-strength rebar

2020 ◽  
pp. 136943322096174
Author(s):  
Wei-ding Zhuo ◽  
Suiwen Wu ◽  
Zhao Liu ◽  
Hua Zang
Keyword(s):  
Cyclic Loading ◽  
Fatigue Damage ◽  
High Strength ◽  
Lateral Force ◽  
Displacement Amplitude ◽  
Bridge Piers ◽  
Yield Displacement ◽  
Loading Tests ◽  
Cyclic Loading Tests ◽  
Rc Bridge Piers

Reinforced concrete bridge piers are extremely vulnerable to damage during long-duration ground excitations or main shock-aftershock type earthquakes due to accumulated damage caused by a great number of reversed excursions in elastic-plastic range. However, few studies on fatigue damage of piers can be found in literature. Low-cyclic loading tests of four identical RC bridge piers with high-strength rebar HRB600E (yield strength about 600 MPa) were carried out in this study. One of specimens was taken as the benchmark and was subjected to a conventional load protocol, and the rest was subjected to one, two and three times yield displacement, respectively. The research results showed that the fatigue strength of RC bridge piers tended to drop drastically at about ten cycles and then slowed down gently. It was found that strength degradation rate increased significantly with the displacement amplitude for fatigue tests while the fatigue life decreased dramatically with the displacement amplitude. In particular, when the cyclic loading displacement exceeded 2 times the yield displacement, the fatigue life dropped dramatically. Based on the experimental data, an exponential-type damage model was proposed with the peak lateral force at the first cycle as the coefficient, the cycle count as the base and factor of the loading displacement amplitude as the exponent, which could accurately predict the degraded lateral force of the bridge piers at different constant drifts. An accumulative fatigue damage index was established to evaluate the damage level of bridge piers.

scholarly journals TENSILE AND CYCLIC LOADING TESTS OF HORIZONTAL BRACE USING GLUED LAMINATED TIMBER WITH STEEL INSERTED PLATE

2019 ◽  
Vol 25 (60) ◽  
pp. 655-659
Author(s):  
Shuzo HIROISHI ◽  
Akira OKADA ◽  
Naoya MIYASATO ◽  
Noburu NAKAMURA ◽  
Kenichi MAMURO ◽  
...  
Keyword(s):  
Cyclic Loading ◽  
Glued Laminated Timber ◽  
Loading Tests ◽  
Cyclic Loading Tests

Shear strengthening of RC short columns with CFRP grid-reinforced FRC matrix: Cyclic loading tests

2021 ◽  
pp. 103915
Author(s):  
Liying Guo ◽  
Mingke Deng ◽  
Ruizhe Li ◽  
Tong Li ◽  
Zhifang Dong
Keyword(s):  
Cyclic Loading ◽  
Shear Strengthening ◽  
Short Columns ◽  
Loading Tests ◽  
Cyclic Loading Tests
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