scholarly journals Design of joints of thin sheet parts with mechanical connections (according to EN 1993-1-3)

2021 ◽  
pp. 19-27
Author(s):  
Mirosław BRONIEWICZ ◽  
Sandra MLONEK ◽  
Romuald SZELĄG
Keyword(s):  
Construction Industry ◽  
Thin Sheet ◽  
Modern Technology ◽  
Design Stage ◽  
Building Structures ◽  
Structural Elements ◽  
Correct Application ◽  
The Cost ◽  
Conventional Systems ◽  
Modern Technologies

The main direction of development of steel building structures is to reduce the cost of implementation of buildings without changing their load-bearing capacity and value in use. Therefore, an essential factor in the development is the introduction of modern technologies. Solutions from other industries such as automotive or aerospace, have been adapted to perform building structures. As a result, today in the construction industry we use lightweight steel profiles from cold-bent elements. Modern technology and advanced calculation theory make it possible to build these structures much more economically than previous conventional systems. Elements and products made of thin sheets allow to reduce costs of construction, but at the same time is associated with the possibility of defects resulting in the appearance of a state of failure of structural elements or the entire facility. Connection zones of thin-walled elements are always the critical points, hence the need for a particularly thorough assessment at the design stage, and then at the implementation of the investment. Correct application of the presented calculation procedure in article will allow the design and realization of modern structures, which will be durable and safe in operation for the expected period of time.

scholarly journals Cost analysis for Construction of Photovoltaic Roofing

TEM Journal ◽  
2020 ◽  
pp. 1508-1513
Author(s):  
Alena Tažiková ◽  
Zuzana Struková ◽  
Juraj Talian ◽  
Anna Ficiková
Keyword(s):  
Solar Energy ◽  
Service Life ◽  
Cost Analysis ◽  
Return On Investment ◽  
Building Structures ◽  
Roof Structure ◽  
State Subsidies ◽  
The Cost ◽  
Family House ◽  
Modern Technologies

The article deals with roof building structures that allow the use of solar energy in the segment of family houses. Modern technologies include photovoltaic roofing, which, in addition to the production of electricity, also fully replaces the roofing itself. It does not disturb the resulting aesthetic and architectural impression of the roof. The article analyzes the cost, return on investment and service life of four solar solutions that are applied to the roof structure of a family house. The use of solar energy is currently small in the segment of family houses in Slovakia despite state subsidies. As this is an ecological way of obtaining energy, there is a need for more discussion on this topic in order to ensure the sustainability of the planet.

scholarly journals Information modeling of windows with the account of thermophysical characteristics

2018 ◽  
Vol 144 ◽  
pp. 04014 ◽  
Author(s):  
Elena Ignatova
Keyword(s):  
Heat Transfer ◽  
Energy Efficiency ◽  
Information Model ◽  
Information Modeling ◽  
Design Stage ◽  
Building Structures ◽  
Structural Elements ◽  
Transfer Resistance ◽  
Building Information ◽  
Window Design

The task of improving the buildings energy efficiency is one of the most important tasks in the design of buildings. The buildings energy efficiency can be improved by rational choice of building structures and reduction of the heat transfer. Significant heat transfer of a building occurs through the windows. At the design stage of a building, it is necessary to estimate the magnitude of a heat transfer of different windows. Currently the designers are increasingly using the technology of building information modeling (BIM). 3D-model of the building consists of models of structural elements, which contain information about the different geometric, physical, technological and other characteristics of the structure. The aim of this work is to develop a parametric information model of the window taking into account its heat transfer resistance. In this paper the design of window units with one, two and three sashes are discussed. The value of window-reduced resistance to a heat transfer is calculated inside the window information model and is presented in the table. The method can be applied to different window design. Thermophysical parameter of the window information model can be used to assess the energy costs of operating the building.

scholarly journals Pembesaran Gaya Dalam dan Rasio Kekuatan Elemen Struktur Baja untuk Berbagai Koefisien Modifikasi Respon (R). (Hal. 86-96)

2019 ◽  
Vol 5 (3) ◽  
pp. 86
Author(s):  
Wahyu Satria Komara ◽  
Kamaludin Kamaludin
Keyword(s):  
Steel Frame ◽  
Building Structures ◽  
Building Structure ◽  
Structure Model ◽  
Structural Elements ◽  
Seismic Force ◽  
The Cost ◽  
Bending Ratio

ABSTRAKPerencanaan struktur bangunan yang elastis membuat dimensi struktur yang di desain menjadi lebih besar sehingga biaya pembangunan struktur menjadi meningkat. Struktur bangunan harus di desain dengan suatu konsep tertentu sehingga bangunan tersebut dapat menahan beban yang terjadi secara efisien. Perencanaan struktur bangunan gedung dengan menggunakan koefisien modifikasi respon () ialah merencanakan bangunan untuk mengalami proses plastifikasi pada elemen struktur ketika terjadi gempa. Penelitian ini membandingkan model struktur bangunan dari rangka baja yang terdiri dari 10 lantai, dengan variasi koefisien modifikasi respon () yaitu, =3; 3,5; 4,5; 5; 6; 7; dan 8. Ketujuh model ini juga di dianalisis sesuai dengan sistem penahan gaya seismiknya. Analisis pada penelitian ini menggunakan program ETABS2015. Dari hasil analisis, diperoleh bahwa Semakin kecil nilai koefisien modifikasi respon () yang digunakan mempengaruhi rasio lentur yang terjadi. Perbesaran lentur pada kolom 18 (C18) ketika nilai =3 sebesar 52,47%.Kata kunci: koefisien modifikasi respon (), daktilitas, pembesaran gaya dalam ABSTRACTPlanning an elastic building structure makes the dimensions and designed structures larger and it can increases the cost of the construction itself. The building structures must be designed with a certain concept so, that the building can withstand the loads efficiently. A structure planning using the response modification coefficient () is to plan the building to experience a process of plasticization of the structural elements during an earthquake. This study compares the building structure model of a steel frame consisting of 10 floors, with variation in the modification coefficient of response () from =3; 3,5; 4,5; 5; 6; 7; until 8. The seven models are also analysed according to the seismic force retaining system.  The analysis in this study using the ETABS2015 program. From the results of the analysis, it was found that the smaller the value of the  response modification coefficient used will affects the bending ratio that occurs. The flexural force when the value of =3 in column 18 (C18) is 52.47%.Keywords: response modification coeffient, ductility, inner force enlargement

scholarly journals Automated identification of construction works and structural elements at an early stage of investment and construction projects’ implementation

2021 ◽  
Vol 263 ◽  
pp. 03008
Author(s):  
Alexander Ginzburg ◽  
Ilya Tyurin
Keyword(s):  
Construction Projects ◽  
Early Stage ◽  
Subsequent Development ◽  
Data Bank ◽  
Building Structures ◽  
Structural Elements ◽  
Automated Identification ◽  
Design Solutions ◽  
The Cost ◽  
The Impact

The article discusses the issues of construction objects pricing in terms of the formation of certain types of costs and an analysis of their interrelationships based on the generated data bank of design and estimate documentation of implemented state investment construction projects. Special attention is paid to the research of the impact of changes in design solutions on the cost of construction. Approaches to the reorganization of the established design technology are proposed. These approaches use automated identification of construction work and structural elements based on the method for assigning criteria for the selection of building structures that are supposed to be erected around the technological space specified by the customer. The selection criteria established in this way assist designers in finding optimal design solutions for the subsequent development of working documentation.

scholarly journals Improvement of methods for determining the cost of design documentation in construction

2018 ◽  
Vol 212 ◽  
pp. 09005
Author(s):  
Tatiana Dobysheva ◽  
Ekaterina Gladkova
Keyword(s):  
Construction Industry ◽  
Structural Elements ◽  
Advantages And Disadvantages ◽  
Construction Products ◽  
Design Documentation ◽  
The Russian Federation ◽  
Design Objects ◽  
Definition Of ◽  
The Cost ◽  
Cost Of Construction

The problems of definition of the cost of design in construction are considered in the article. The existing regulatory documentation for determining the value of construction products on the territory of the Russian Federation is analyzed. A comparative analysis of the currently used methods for calculating the cost of designing is executed. The advantages and disadvantages of each method are considered, and the necessity of transformations in the sphere of determining the cost of design works is substantiated. The ways of increasing accuracy of calculation of the cost of design in construction are suggested, including the use of the territorial coefficient in calculations when utilizing the method of dependence on the natural indicators of the design objects. It is revealed that the use of this coefficient significantly increases the accuracy of calculations. For the method of calculating the cost of design as a percentage of the total cost of construction, it is proposed to clarify the methodology for calculating the cost of construction of multi-apartment buildings according to the enlarged construction price standards. It is proved that today it is impossible to replace the value of individual structural elements of an object in the event of differences in the design solutions with the solutions represented by similar objects in the collection of the construction price standards. The ways of solving these issues by the use of collections of standards for the price of construction solutions are outlined. The authors are convinced that the improvement of methods for calculating the cost of design products will improve the efficiency of investments in the construction industry.

MODERN TECHNOLOGY IN DUNE COMPLEXES MONITORING ON THE VISTULA SPIT

2017 ◽  
Author(s):  
Aleksandr Danchenkov ◽  
Aleksandr Danchenkov
Keyword(s):  
High Resolution ◽  
Baltic Sea ◽  
Spatial Data ◽  
Modern Technology ◽  
High Potential ◽  
Coastal Processes ◽  
The Baltic Sea ◽  
Widespread Application ◽  
The Baltic ◽  
Modern Technologies

Modern technologies, which provide fast and accurate acquisition of high-resolution spatial data, have found widespread application in the monitoring of coastal processes. This paper reports the results of four years’ monitoring of a huge deflation/blowout/wind-scour basin dynamics at the Vistula Spit (southeast coast of the Baltic Sea). Information about the volume and size dynamics together with deflation/accumulation schemes and 3D elevation maps is presented. Basing on the obtained results, forecast of the deflation basin dynamics for 2016 was proposed. This paper implements the Terrestrial Laserscanning (TLS) method to the coastal processes investigation and demonstrates its high potential in this field.

ECONOMIC SUBSTANTIATION OF TRANSITION TO PERSONNEL OUTSOURCING IN THE ORGANIZATIONS OF THE CONSTRUCTION INDUSTRY

2020 ◽  
pp. 70-79
Author(s):  
V.V. Verna
Keyword(s):  
Cost Effectiveness ◽  
Construction Industry ◽  
Methodological Approaches ◽  
Construction Organization ◽  
The Cost ◽  
The Impact

The article provides a rationale for methodological approaches to assessing the effectiveness of outsourcing in organizations of the construction industry using the example of outsourcing schemes to perform personnel functions. The conditional example shows the impact of the use of outsourcing on reducing the costs of a construction organization. The main prerequisites for the use of outsourcing in the activities of enterprises in the construction industry are identified, methodological approaches to assessing the cost-effectiveness of personnel outsourcing in the construction industry enterprises are substantiated.

MODERN TECHNOLOGY IN DUNE COMPLEXES MONITORING ON THE VISTULA SPIT

2017 ◽  
Author(s):  
Aleksandr Danchenkov ◽  
Aleksandr Danchenkov
Keyword(s):  
High Resolution ◽  
Baltic Sea ◽  
Spatial Data ◽  
Modern Technology ◽  
High Potential ◽  
Coastal Processes ◽  
The Baltic Sea ◽  
Widespread Application ◽  
The Baltic ◽  
Modern Technologies

Modern technologies, which provide fast and accurate acquisition of high-resolution spatial data, have found widespread application in the monitoring of coastal processes. This paper reports the results of four years’ monitoring of a huge deflation/blowout/wind-scour basin dynamics at the Vistula Spit (southeast coast of the Baltic Sea). Information about the volume and size dynamics together with deflation/accumulation schemes and 3D elevation maps is presented. Basing on the obtained results, forecast of the deflation basin dynamics for 2016 was proposed. This paper implements the Terrestrial Laserscanning (TLS) method to the coastal processes investigation and demonstrates its high potential in this field.

scholarly journals A METHODOLOGY TO SUPPORT COMPANIES IN THE FIRST STEPS TOWARDS DE-MANUFACTURING

2021 ◽  
Vol 1 ◽  
pp. 131-140
Author(s):  
Federica Cappelletti ◽  
Marta Rossi ◽  
Michele Germani ◽  
Mohammad Shadman Hanif
Keyword(s):  
Environmental Impact ◽  
End Of Life ◽  
Design Stage ◽  
Life Strategies ◽  
Disassembly Sequence ◽  
The Status ◽  
The Cost ◽  
Technical Solutions ◽  
First Time ◽  
Complex Activities

AbstractDe-manufacturing and re-manufacturing are fundamental technical solutions to efficiently recover value from post-use products. Disassembly in one of the most complex activities in de-manufacturing because i) the more manual it is the higher is its cost, ii) disassembly times are variable due to uncertainty of conditions of products reaching their EoL, and iii) because it is necessary to know which components to disassemble to balance the cost of disassembly. The paper proposes a methodology that finds ways of applications: it can be applied at the design stage to detect space for product design improvements, and it also represents a baseline from organizations approaching de-manufacturing for the first time. The methodology consists of four main steps, in which firstly targets components are identified, according to their environmental impact; secondly their disassembly sequence is qualitatively evaluated, and successively it is quantitatively determined via disassembly times, predicting also the status of the component at their End of Life. The aim of the methodology is reached at the fourth phase when alternative, eco-friendlier End of Life strategies are proposed, verified, and chosen.

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