scholarly journals EVALUATION OF FATIGUE RESISTANCE AND MAINTENANCE OF RC SLAB REINFORCED BY CFS UNDER RUNNING WHEEL LOAD

2011 ◽  
Vol 65 (1) ◽  
pp. 493-500
Author(s):  
Tadashi ABE ◽  
Tetsukazu KIDA ◽  
Chanho WON ◽  
Atsuya KOMORI
Keyword(s):  
Fatigue Resistance ◽  
Running Wheel ◽  
Wheel Load ◽  
Rc Slab

scholarly journals Damage mechanism of existing RC slabs with reinforcing steel plate

2019 ◽  
Vol 258 ◽  
pp. 05011
Author(s):  
Kenta Namba ◽  
Chikako Fujiyama ◽  
Tsutomu Niina
Keyword(s):  
Cross Sections ◽  
Three Dimensional ◽  
Simulation Models ◽  
Damage Mechanism ◽  
Steel Plates ◽  
Reinforcing Steel ◽  
Wheel Load ◽  
Element Analysis ◽  
Rc Slab ◽  
Rc Slabs

The purpose of this study was to clarify the damage mechanisms of existing reinforced concrete (RC) slabs with reinforcing steel plates through the use of a three-dimensional nonlinear finite element analysis. An actual wheel load running test was simulated. Two panels of RC slab were cut from existing bridges and were used as the test specimens. Simulation models were built for each specimen with different modeling concepts for the rebar; RC elements, and solid elements. After the wheel load running simulations, the strains were examined through use of the strain contours at various cross sections. In the model using solid element for the rebars, the mechanisms for the generation and development of the horizontal cracks were analyzed in detail. Furthermore, the strain components of the referential elements were carefully analyzed for different loading cycles and positions. Although the decisive cause of the horizontal crack has not been clarified yet, the crack development processes were mostly demonstrated through this study.

scholarly journals EVALUATION OF FATIGUE RESISTANCE AND MAINTENANCE METHOD OF RC SLAB WITH THE TOP SURFACE REINFORCED BY OVERLAYING THE SFRC

2011 ◽  
Vol 65 (1) ◽  
pp. 485-492
Author(s):  
Tadashi ABE ◽  
Makiko TAKANO ◽  
Tetsukazu KIDA ◽  
Takayoshi KODAMA
Keyword(s):  
Fatigue Resistance ◽  
Rc Slab

scholarly journals Analysis on Wheel Load Variation in Coupled Motion Between Running Wheel and Track with Irregularity

2007 ◽  
Vol 73 (730) ◽  
pp. 1801-1808
Author(s):  
Masahito ADACHI ◽  
Yoshiaki TERUMICHI ◽  
Yoshihiro SUDA ◽  
Kiyoshi SOGABE
Keyword(s):  
Running Wheel ◽  
Wheel Load ◽  
Coupled Motion ◽  
Load Variation

scholarly journals Acoustic Emission Properties of Concrete Slab During Fatigue Testing with a Running-Wheel Load

2017 ◽  
Vol 11 (3) ◽  
Author(s):  
Mitsuharu Shiwa ◽  
Zhengwang Li ◽  
Takuya Maeshima ◽  
Yasuhiro Koda ◽  
Yasushi Tanaka
Keyword(s):  
Acoustic Emission ◽  
Fatigue Testing ◽  
Concrete Slab ◽  
Running Wheel ◽  
Wheel Load ◽  
Emission Properties

scholarly journals FATIGUE RESISTANCE OF RC SLABS OVERLAID WITH THE SFRC DETERMINED FROM FATIGUE TESTS UNDER RUNNING WHEEL LOADS

2010 ◽  
Vol 64 (1) ◽  
pp. 493-500
Author(s):  
Dai NEMOTO ◽  
Tadashi ABE ◽  
Tetsukazu KIDA ◽  
Atsuya KOMORI
Keyword(s):  
Fatigue Resistance ◽  
Fatigue Tests ◽  
Running Wheel ◽  
Rc Slabs

Influence of toe load on the fatigue resistance of elastic rail clips

2017 ◽  
Vol 232 (4) ◽  
pp. 1078-1087 ◽  
Author(s):  
Anat Hasap ◽  
Phanasindh Paitekul ◽  
Nitikorn Noraphaiphipaksa ◽  
Chaosuan Kanchanomai
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Resistance ◽  
Cyclic Deformation ◽  
Static Load ◽  
Critical Component ◽  
Wheel Load ◽  
Element Analysis ◽  
Fatigue Experiment

As a critical component of the fastening system, the elastic rail clip maintains the rail in the vertical, lateral, and longitudinal positions using its specified toe load. In this study, the influence of toe load on the deformation and fatigue resistance of the clip was studied. Finite element analysis, static load experiments, and fatigue experiments were performed to evaluate the deformation and fatigue resistance of the clip. With the contribution of the lateral wheel load, the deformation range of the outer clip was higher than that of the inner clip. Therefore, the cyclic deformation of the outer clip was used for the fatigue experiment. The toe load had no influence on the fatigue resistance of the clip under normal wheel load, i.e. the clips under high, normal, and low toe loads were run-out at 5 × 106 cycles. However, with the contribution of impact on the wheel load, the fatigue lives were reduced to 5468 cycles and 16,839 cycles for the clips under high and normal toe loads, respectively. In the case of low toe load, the clip under the contribution of impact could withstand more than 5 × 106 cycles. Accordingly, the reduction of toe load may enhance the fatigue resistance of the clip under impact.

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