scholarly journals A study on the collision force of reinforced concrete piers under cumulative ship collision

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401983507 ◽  
Author(s):  
Xiwu Zhou ◽  
Yushen Gao ◽  
Fei Huang ◽  
Guoxue Zhang
Keyword(s):  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Research Study ◽  
International Standards ◽  
Bridge Piers ◽  
Calculation Formula ◽  
Ship Collision ◽  
Collision Force ◽  
Force Calculation

In this research study, the characteristics of ship–bridge collision force formulas, in Chinese standards as well as international standards, were analyzed. By considering the damage situations of bridge piers under the cumulative ship collision conditions, a method of combining theoretical deduction with numerical analysis was adopted in this study. The goals of this study were to analyze and examine the sizes of the ship–bridge collision forces, along with the damage situations of piers, in order to propose a collision force calculation formula which took cumulative pier damages into consideration. Also, experimental verifications and an applicability analysis of the proposed formula were performed.

Internal Force Calculation and Analysis of Precast Reinforced Concrete Composite Thermal Insulation of External Wall

2013 ◽  
Vol 405-408 ◽  
pp. 2555-2558
Author(s):  
Ying Wang
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Thermal Insulation ◽  
Internal Force ◽  
Calculation Formula ◽  
External Wall ◽  
Simulation Calculation ◽  
Wall Panels ◽  
Force Calculation

This paper describes how to use the simulation calculation of finite element programs. Identification the internal force calculation formula of whole precast reinforced concrete composite insulation external wall with openings.In engineering on wall panels provide a basis for safe use.

Numerical analysis of the shear strength of circular reinforced concrete columns subjected to cyclic lateral loads using linear genetic programming

2020 ◽  
Vol 37 (7) ◽  
pp. 2517-2537
Author(s):  
Mostafa Rezvani Sharif ◽  
Seyed Mohammad Reza Sadri Tabaei Zavareh
Keyword(s):  
Numerical Modeling ◽  
Shear Strength ◽  
Reinforced Concrete ◽  
Numerical Analysis ◽  
Genetic Programming ◽  
Linear Genetic Programming ◽  
Rc Columns ◽  
Content Type ◽  
Alternative Approach ◽  
Engineering Problems

Purpose The shear strength of reinforced concrete (RC) columns under cyclic lateral loading is a crucial concern, particularly, in the seismic design of RC structures. Considering the costly procedure of testing methods for measuring the real value of the shear strength factor and the existence of several parameters impacting the system behavior, numerical modeling techniques have been very much appreciated by engineers and researchers. This study aims to propose a new model for estimation of the shear strength of cyclically loaded circular RC columns through a robust computational intelligence approach, namely, linear genetic programming (LGP). Design/methodology/approach LGP is a data-driven self-adaptive algorithm recently used for classification, pattern recognition and numerical modeling of engineering problems. A reliable database consisting of 64 experimental data is collected for the development of shear strength LGP models here. The obtained models are evaluated from both engineering and accuracy perspectives by means of several indicators and supplementary studies and the optimal model is presented for further purposes. Additionally, the capability of LGP is examined to be used as an alternative approach for the numerical analysis of engineering problems. Findings A new predictive model is proposed for the estimation of the shear strength of cyclically loaded circular RC columns using the LGP approach. To demonstrate the capability of the proposed model, the analysis results are compared to those obtained by some well-known models recommended in the existing literature. The results confirm the potential of the LGP approach for numerical analysis of engineering problems in addition to the fact that the obtained LGP model outperforms existing models in estimation and predictability. Originality/value This paper mainly represents the capability of the LGP approach as a robust alternative approach among existing analytical and numerical methods for modeling and analysis of relevant engineering approximation and estimation problems. The authors are confident that the shear strength model proposed can be used for design and pre-design aims. The authors also declare that they have no conflict of interest.

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