Numerical Simulation Based on Controlled Blasting Demolition Value of Separate Model for 210m Reinforced Concrete Chimney

2013 ◽  
Vol 8 (7) ◽  
pp. 547-554
Author(s):  
CHEN Dezhi ◽  
XU Shunxiang
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Separate Model ◽  
Simulation Based ◽  
Reinforced Concrete Chimney

scholarly journals Numerical Simulation based Evaluation Method of Structure-borne Noise of Reinforced Concrete Viaduct

2021 ◽  
Vol 62 (2) ◽  
pp. 130-136
Author(s):  
Tsutomu WATANABE ◽  
Manabu IKEDA ◽  
Toki UDA ◽  
Mariko AKUTSU ◽  
Toshiki KITAGAWA
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Evaluation Method ◽  
Simulation Based

The Numerical Simulation of Blasting Demolition on the Solid Pier

2013 ◽  
Vol 470 ◽  
pp. 263-266
Author(s):  
Jian Ping Feng ◽  
Ping Ming Huang ◽  
Zheng Zhu ◽  
Di Wang ◽  
Wei Gang Sun
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Concrete Bridges ◽  
Bridge Structure ◽  
Separate Model ◽  
Reinforced Concrete Bridges ◽  
Main Material

Reinforced concrete is the main material of the bridge structure, a lot of reinforced concrete bridges in service are needed to be demolished. Firstly, the numerical simulation of blasting demolition of reinforced concrete was introduced; secondly, the separate model of common nodes of the reinforced concrete solid pier was built by using the software ANSYS/LS-DYAN; lastly, the effect of numerical simulation of blasting demolition on the solid pier was analyzed.

scholarly journals Numerical Simulation of Monitoring Corrosion in Reinforced Concrete Based on Ultrasonic Guided Waves

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Zhupeng Zheng ◽  
Ying Lei ◽  
Xin Xue
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Guided Waves ◽  
Guided Wave ◽  
Corrosion Monitoring ◽  
Time Frequency ◽  
Ultrasonic Guided Wave ◽  
Simulation Based ◽  
Time Frequency Localization ◽  
Corrosion Defects

Numerical simulation based on finite element method is conducted to predict the location of pitting corrosion in reinforced concrete. Simulation results show that it is feasible to predict corrosion monitoring based on ultrasonic guided wave in reinforced concrete, and wavelet analysis can be used for the extremely weak signal of guided waves due to energy leaking into concrete. The characteristic of time-frequency localization of wavelet transform is adopted in the corrosion monitoring of reinforced concrete. Guided waves can be successfully used to identify corrosion defects in reinforced concrete with the analysis of suitable wavelet-based function and its scale.

Numerical Simulation on the Overturn Process of Towering Reinforced Concrete Chimney during Directional Demolition Blasting

2013 ◽  
Vol 444-445 ◽  
pp. 1145-1151
Author(s):  
Jian Bin Xie ◽  
Miao Fu ◽  
Chang Chang Wu ◽  
Deng Feng Hu ◽  
Yun He Du
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Finite Element Model ◽  
Constitutive Relation ◽  
Element Model ◽  
Internal Force ◽  
Modeling Method ◽  
Element Analysis ◽  
Reinforced Concrete Chimney

On the basis of plastic-elastic mechanics and finite element method, one selected 150m high reinforced concrete chimney was taken as the target in this paper to analyze the mechanical condition of directional demolition blasting, the capsizing time, the internal force of support abutment and constitutive relation of the chimney during directional blasting. A finite element model of the towering reinforced concrete chimney was established through separated modeling method by finite element analysis software LS-DYNA of ANSYS. Results show that the constitutive relation given by this paper conforms to reality. The finite element model of the towering reinforced concrete chimney established by separated modeling method is reasonable. The real overturn process, capsizing location and capsizing length of towering reinforced concrete chimney during directional demolition blasting are agree with that of numerical simulation.

Direct numerical simulation–based Reynolds-averaged closure for bubble-induced turbulence

2017 ◽  
Vol 2 (3) ◽  
Author(s):  
Tian Ma ◽  
Claudio Santarelli ◽  
Thomas Ziegenhein ◽  
Dirk Lucas ◽  
Jochen Fröhlich
Keyword(s):  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Simulation Based

scholarly journals Numerical Simulation of the Mechanical Behavior of Fiber-Reinforced Cement Composites Subjected Dynamic Loading

2021 ◽  
Vol 11 (3) ◽  
pp. 1112
Author(s):  
Nikita Belyakov ◽  
Olga Smirnova ◽  
Aleksandr Alekseev ◽  
Hongbo Tan
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Dynamic Loading ◽  
Fiber Reinforced Concrete ◽  
Cement Composites ◽  
Fiber Reinforced ◽  
Lab Experiments ◽  
Reinforced Cement ◽  
Underground Workings ◽  
Concrete Damaged Plasticity

The problem of damage accumulation in fiber-reinforced concrete to structures supporting underground workings and tunnel linings against dynamic loading is insufficiently studied. The mechanical properties were determined and the mechanism of destruction of fiber-reinforced concrete with different reinforcement parameters is described. The parameters of the Concrete Damaged Plasticity model for fiber-reinforced concrete at different reinforcement properties are based on the results of lab experiments. Numerical simulation of the composite concrete was performed in the Simulia Abaqus software package (Dassault Systemes, Vélizy-Villacoublay, France). Modeling of tunnel lining based on fiber-reinforced concrete was performed under seismic loading.

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