scholarly journals Vibration Properties of a Concrete Structure with Symmetries Used in Civil Engineering

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 656
Author(s):  
Sorin Vlase ◽  
Marin Marin ◽  
Ovidiu Deaconu
Keyword(s):  
Dynamic Analysis ◽  
Concrete Structure ◽  
Current Practice ◽  
Civil Engineering ◽  
Engineering Practice ◽  
Design Time ◽  
Vibration Properties ◽  
Reduced Costs ◽  
Constructive Simplicity ◽  
Economic Considerations

The paper aims to study a concrete structure, currently used in civil engineering, which has certain symmetries. This type of problem is common in engineering practice, especially in civil engineering. There are many reasons why structures with identical elements or certain symmetries are used in industry, related to economic considerations, shortening the design time, for constructive, simplicity, cost or logistical reasons. There are many reasons why the presence of symmetries has benefits for designers, builders, and beneficiaries. In the end, the result of these benefits materializes through short execution times and reduced costs. The paper studies the eigenvalue and eigenmode properties of vibration for components of the constructions’ structure, often encountered in current practice. The identification of such properties allows the simplification and easing of the effort necessary for the dynamic analysis of such a structure.

scholarly journals Vibration Response of a Concrete Structure with Repetitive Parts Used in Civil Engineering

Mathematics ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 490
Author(s):  
Sorin Vlase ◽  
Marin Marin ◽  
Maria Luminita Scutaru ◽  
Catalin Pruncu
Keyword(s):  
Dynamic Analysis ◽  
Mechanical System ◽  
Concrete Structure ◽  
Mechanical Model ◽  
Civil Engineering ◽  
Vibration Response ◽  
Truss Structure ◽  
Eigenvalues And Eigenvectors ◽  
Vibration Behavior ◽  
Design And Construction

The paper studies the vibration behavior of a concrete structure, currently used in civil engineering. The truss structure considered has symmetries that can be used to facilitate both the design and construction of the building. Moreover, the symmetries encountered can be used to simplify the calculation of vibrations of the system. Based on the mechanical model built, eigenvalues and eigenvectors of such mechanical system are determined, and properties, specific to these symmetries, are identified. In this way, the dynamic analysis of the structure can be simplified and also, the design as well as the costs related to this stage.

The Summary of the Durability of Concrete Parameters Calculation Models

2011 ◽  
Vol 71-78 ◽  
pp. 937-944
Author(s):  
Ping Jie Cheng ◽  
Han Zhou Hu ◽  
Shu Guang Hu
Keyword(s):  
Environmental Effects ◽  
Concrete Structure ◽  
Civil Engineering ◽  
Steel Corrosion ◽  
Type Model ◽  
Model Parameters ◽  
Source Type ◽  
Important Field ◽  
Parameters Calculation ◽  
Durability Of Concrete

The durability of concrete structure has become an important field of civil engineering at home and abroad, and how to determine the environmental effects of typical durability of concrete structure key parameters become the key. Proposed by different domestic and foreign scholars to study durability parameters of concrete structure of different models, different models are different in the source, type, model parameters and applicable conditions. In this paper, some typical models are reviewed and analyzed from two major aspects of the durability of concrete, the deterioration of concrete and the steel corrosion.

Indoor Environment State of Classrooms Situated in the Loft Spaces of Civil Engineering Faculty TU in Kosice – Dynamic Analysis Using Design Builder

2013 ◽  
Vol 649 ◽  
pp. 77-80
Author(s):  
Martin Kovac ◽  
Katarina Knizova
Keyword(s):  
Dynamic Analysis ◽  
Indoor Environment ◽  
Natural Ventilation ◽  
Civil Engineering ◽  
Energy Simulation ◽  
Simulation Tool ◽  
Engineering Faculty ◽  
Dynamic View ◽  
Internal And External Factors ◽  
Night Ventilation

A purpose of this submission is a dynamic analysis of indoor environment on the suitably chosen classrooms, which are situated in loft spaces of Civil Engineering Faculty TU of Kosice. The evaluation was doing by using energy simulation tool DesignBuilder. In this submission there are compared different modes of natural ventilation during a day, with or without night ventilation. The next subject of presented analysis is to consider the installation of the exterior shading elements and their influence on a modification of an operative temperature in classrooms. The purpose of the whole submission is to obtain a dynamic view of indoor environment changes that are determined by internal and external factors.

The Plan for Outstanding Civil Engineering Undergraduate Experimental Teaching Research — In the Concrete Structure Principle of the Experimental Teaching Reform as an Example

2013 ◽  
Vol 753-755 ◽  
pp. 3136-3139 ◽  
Author(s):  
Tong Zhang ◽  
Shuai Tian ◽  
Ling Xu ◽  
Hong Yan Chen
Keyword(s):  
Concrete Structure ◽  
Civil Engineering ◽  
Teaching Method ◽  
Data Organization ◽  
Organization Management ◽  
Teaching Platform ◽  
Teaching Reform ◽  
Experimental Teaching ◽  
Training Plan ◽  
Flexural Bearing Capacity

Oriented education "outstanding engineers training plan", combined with the characteristics of university students after 90, teaching method required in the civil engineering undergraduate experiment is studied. To the "principle of concrete structure" experimental teaching reform as an example, it builds an organic experiment teaching platform with theoretical teaching across the curriculum, concrete structure associated , the "Yang section flexural bearing capacity of reinforced concrete demonstration experiments" optimize the comprehensive design experiments, has been clear about the experiment of hardware, software, data organization, management, etc. Thus it provides a certain reference basis for excellence in civil engineering undergraduate experiment teaching.

Research on the Reform of Metallurgical Engineering Practice Teaching

2014 ◽  
Vol 599-601 ◽  
pp. 2044-2047
Author(s):  
Wen Qiang Yang ◽  
Juan An ◽  
Xiao Li Yuan ◽  
Wen Tang Xia
Keyword(s):  
Detailed Analysis ◽  
Engineering Students ◽  
Current Practice ◽  
Engineering Practice ◽  
Complex World ◽  
Teaching System ◽  
Current Structure ◽  
Metallurgical Engineering ◽  
Practice Teaching

The cultivation of the practical ability for Metallurgical Engineering students is very important to help them succeed in a fast paced society and new complex world. In this paper, the current structure of practice teaching system was explained. Meanwhile, based on the detailed analysis of the issues exist in current practice teaching of Metallurgical Engineering, the purpose of the practice teaching was expounded and the reform of the practice teaching was explored.

scholarly journals A REVIEW STUDY OF ECONOMICS ANALYSIS IN ENGINEERING PROJECTS

2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Dr. Osama Mohammed Elmardi Suleiman ◽  
Nafea Mostafa Muki Nafea
Keyword(s):  
Microeconomic Theory ◽  
Engineering Practice ◽  
Benefit Cost Analysis ◽  
Engineering Economics ◽  
Engineering Economy ◽  
Benefit Cost ◽  
Engineering Projects ◽  
Economics Analysis ◽  
Economic Considerations ◽  
Analytical Power

Engineering economics, previously known as engineering economy, is a subset of economics concerned with the use and application of economic principles in the analysis of engineering decisions. As a discipline, it is focused on the branch of economics known as microeconomics in that it studies the behavior of individuals and firms in making decisions regarding the allocation of limited resources. Thus, it focuses on the decision making process, its context and environment. It is pragmatic by nature, integrating economic theory with engineering practice. But, it is also a simplified application of microeconomic theory in that it avoids a number of microeconomic concepts such as price determination, competition and demand/supply. As a discipline though, it is closely related to others such as statistics, mathematics and cost accounting. It draws upon the logical framework of economics but adds to that the analytical power of mathematics and statistics. Engineers seek solutions to problems, and the economic viability of each potential solution is normally considered along with the technical aspects. Fundamentally, engineering economics involves formulating, estimating, and evaluating the economic outcomes when alternatives to accomplish a defined purpose are available. The study includes an introduction to the application of economic techniques to the evaluation of design and engineering alternatives, cash flow concepts, interest factors, comparison of alternatives, benefit - cost analysis, and conclusions of the study. One of the objectives of the economic analysis in engineering projects is the good management which consists primarily of making wise decisions; wise decisions in turn involve making a choice between alternatives. Engineering considerations determine the possibility of a project being carried out and point out the alternative ways in which the project could be handled. Economic considerations also largely determine a project's desirability and dictate ho

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