scholarly journals Progressive collapse evaluation in industrial building of existing production

2019 ◽  
Vol 97 ◽  
pp. 04053
Author(s):  
Stanislav Pavlov ◽  
Olga Tusnina
Keyword(s):  
Progressive Collapse ◽  
Steel Structures ◽  
Bearing Steel ◽  
Actual Condition ◽  
Industrial Building ◽  
Structural Form ◽  
Emergency Situations ◽  
Industrial Buildings ◽  
Complex Structural ◽  
The Impact

The problem of analysis of the resistance to the progressive collapse of the bearing steel framework of industrial building of existing production with a complex structural form with a service life of about 50 years is considered in this article. The main goal was to determine the approaches to such analysis and to identify the degree of survivability of the building. Probable emergency situations associated with the actual condition of steel structures, as well as with new and existing technological processes occurring in the industrial workshop were defined. Under the identified scenarios of emergency situations, the possibility of local damage of steel structures and their individual elements was determined. The extent of the impact of emergency situations on bearing steel structures has been determined. The main provisions for the analysis are presented. As a result, the level of sustainability of the industrial building framework to progressive collapse was defined. As a conclusion, the suggested approaches for performing similar analyses of existing industrial buildings are presented. Also the use of measures to prevent possible damage of structures and accidents, as well as to reduce financial costs during technological renovations without reducing the level of reliability and survivability are justified.

scholarly journals LOAD-BEARING CAPACITY OF THE FLANGE CONNECTION OF BEAMS, COVERING OF A SINGLE-STOREY INDUSTRIAL BUILDING TAKING INTO ACCOUNT ITS MUSHROOM SHAPE

2021 ◽  
Vol 6 (6) ◽  
pp. 19-26
Author(s):  
A. Evdokimov
Keyword(s):  
Steel Structures ◽  
High Strength ◽  
Physical Nonlinearity ◽  
Industrial Building ◽  
Design Work ◽  
Flange Connection ◽  
Structural Reinforcement ◽  
Industrial Buildings ◽  
Steel Frame Structures ◽  
Adhesive Effect

The article deals with issues related to the analysis of steel frame structures. The subject of the study is the construction sector. The object of research is flanged joints of beams of coverings of one-storey industrial buildings. In order to achieve these goals, the following methods are used: analysis, synthesis, description, generalization and comparison. According to the results of the work, the features of forming the quality of interaction between flanged joints and high-strength bolts in the form of a nodal connection of coating beams are determined. Additionally, the analysis of features during the design work and production of flanged connections used for the implementation of popular design solutions for steel cross frames of single-storey buildings is carried out. The main directions of analysis of the state of steel structures in the presence of signs of deformation (mushroom shape) of the flange connection are disclosed. The obtained data helps to optimize the composition of structural reinforcement elements, as well as reduce the level of labor intensity in the production and installation of flange joints of single-storey buildings’ coating beams. In the course of the study, an experiment is conducted in which the principle of symmetry is used. The unidirectional connection in and between nodes is modeled using the elements considered. In this case, it is necessary to mention the phenomenon of the adhesive effect of the nodes during compression and the lack of adhesion during tension. The model takes into account the physical nonlinearity of the material properties, the behavior of which is set by bilinear dependencies under load

scholarly journals THE PROTECTABILITY OF BLOCK COVERINGS OF INDUSTRIAL BUILDINGS WITH DEFECTIVE LOAD-BEARING STRUCTURES FROM PROGRESSIVE COLLAPSE

Vestnik MGSU ◽  
2015 ◽  
pp. 16-27 ◽  
Author(s):  
Gevorg Harutyunovich Harutyunyan
Keyword(s):  
Statistical Data ◽  
Progressive Collapse ◽  
Life Time ◽  
Industrial Building ◽  
Average Life ◽  
Metal Structures ◽  
Industrial Structures ◽  
Industrial Buildings ◽  
Operation Duration ◽  
Safety Operation

Beginning with the 20th century metal structures are widely used in the construction branch in Russia. The reason for it was in the development of calculation methods of structures. Beginning with 1930 and till now a substantial number of the industrial buildings (about 90 %) of production plants have been built of metal structures. The essential part of them - 20…60 % of the whole volume - has block coverings consisting of bearing and braced elements. At the present time the data on the operation duration of industrial structures is not systemized throughout Russia. This data may serve as one of characteristic factors for estimating safety operation level, because while the operation term increases, the wear also increases (mechanical damages), which influences the bearing capacity of the structures. The following article examines the collapse of industrial building coverings that may be accompanied not only by material losses, but also by fatal accidents. Statistical data of damageability of trusses and their elements are presented; the consequences of collapse are examined. The average life time of trusses is determined which is serving as a criteria that characterizes damage accumulation. The nature of the collapse of block coverings is revealed which, in most cases, may be classified as progressive.

scholarly journals Life Cycle Assessment of Industrial Building Construction and Recovery Potential. Case Studies in Seville

Processes ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 76
Author(s):  
Madelyn Marrero ◽  
Cristina Rivero-Camacho ◽  
Alejandro Martínez-Rocamora ◽  
María Desirée Alba-Rodríguez ◽  
Jaime Solís-Guzmán
Keyword(s):  
Construction Projects ◽  
Product Information ◽  
Water Footprint ◽  
Efficient Solutions ◽  
Industrial Building ◽  
Recovery Potential ◽  
Industrial Buildings ◽  
Potential Case ◽  
Recycling Potential ◽  
The Impact

In Spain, most businesses are medium to small size enterprises, representing 90% of the total, but there is a lack of studies of the types of building this sector uses. The main objective of this paper is to present a method for the evaluation of small industrial construction projects to facilitate the introduction of eco-efficient solutions. For this, it is necessary to identify the most representative buildings and the aspects of these which have the most environmental impact. A methodology in place for the evaluation of dwelling construction is adapted, for the first time, to evaluate industrial buildings. The construction solutions characterized are those traditionally used in the sector, as identified through 87 surveys. A standardized classification of work units is proposed to enable the use of environmental product information, such as eco-labels and/or EPD, and LCA databases. The carbon footprint (CF) and water footprint (WF) are the indicators selected because of their straightforward message. Finally, a comparative analysis is performed showing the high recycling potential of concrete and cement which, along with metals and aggregates, control the impact in terms of CF. With respect to the WF indicator, plastic substitute aggregates are among the materials with the greatest impact.

scholarly journals Influence of glazing type on energy efficiency of industrial buildings in the process of revitalization: A case study

2019 ◽  
Vol 17 (1) ◽  
pp. 33-44
Author(s):  
Branko Slavkovic
Keyword(s):  
Comparative Analysis ◽  
Carbon Dioxide Emissions ◽  
Energy Performance ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Industrial Building ◽  
Industrial Buildings ◽  
Double Skin ◽  
The Impact ◽  
The City

This paper examines the possibilities of improving the energy performance of an existing industrial building by application of the double skin fa?ade on the revitalization of the building envelope in the climatic conditions of the city Novi Pazar, Republic of Serbia. The aim is to examine the impact of choosing the type of glazing, in the processes of revitalization, on the energy needs of industrial buildings for heating and cooling, as well as the contribution of the measures implemented to improve the energy performance of the selected type and model of industrial building. The energy performance of buildings was obtained using the software DesignBuilder and EnergyPlus simulation platform, taking into account the parameters of required internal temperature and climate data for the Republic of Serbia. The comparative analysis of the results of energy simulation according to the criterion of achieving greater energy savings and reduced carbon dioxide emissions was performed. The methodological approach in this research involves creating revitalization scenarios of industrial buildings with a shed roof construction, selection of the specific building according to whose properties by numerical simulation possibilities for energy revitalization depletion were investigated and comparative analysis of the obtained results was performed. The primary objective of this research is to investigate the impact of choosing the type of glazing on the energy performance of industrial buildings with a shed roof construction and to determine the optimal approach to energy revitalization of existing industrial buildings with the implementation of the double skin fa?ade under the climatic conditions of the city Novi Pazar, Republic of Serbia. The results of this paper indicate the negative characteristics of the kopilit glass to solar gains, whose retention requires a large amount of heating energy. While replacing of kopilit glass with a low-energy glass increases the amount of energy required to cooling of the building. With this research, through various revitalization scenarios, it is also indicated that using a double skin fa?ade in the revitalization process of the selected building, has a very similar impact on reducing CO2 emissions regardless of the type of glazing choice.

scholarly journals Project Based Learning experience with engineering students for the design of steel structures

2017 ◽  
Author(s):  
Carmen Ibáñez Usach ◽  
David Hernández Figueirido
Keyword(s):  
Engineering Students ◽  
Learning Experience ◽  
Industrial Process ◽  
Steel Structures ◽  
Project Based Learning ◽  
Industrial Building ◽  
Master Of Science ◽  
Degree Of Satisfaction ◽  
The Impact ◽  
Academic Year

This work describes the Project Based Learning (PBL) experience carried out with engineering students in the field of steel structures design during the academic year 2016-2017 at the Universitat Jaume I of Castellón de la Plana (Spain). This experience is integrated in the Master of Science in Industrial Engineering. The experience consists of simulating the activity of a technical office dedicated to the development of structural projects. A real situation comprising the design and calculation of an industrial building for a costumer is presented to the students. Some geometrical aspects according to the customer desires and the industrial process to be set at the building are specified. The students are organized in groups and have to work in a project to develop a competitive solution to this real necessity within deadline. Finally, a survey is conducted to evaluate both the impact of this experience in the learning process and the students’ degree of satisfaction with respect to this technique. The results of the survey show that PBL promotes the technical training of the students in this field and encourages the development of transversal skills, enhancing, at the same time, their motivation.

Functional and aesthetic transformation of industrial into housing spaces

2019 ◽  
Vol 17 (4) ◽  
pp. 401-416 ◽  
Author(s):  
Ana Stanojevic ◽  
Aleksandar Kekovic
Keyword(s):  
Urban Areas ◽  
Physical Structure ◽  
Industrial Building ◽  
Single Family ◽  
Industrial Heritage ◽  
Industrial Buildings ◽  
Industrial Architecture ◽  
Research Goal ◽  
The Aesthetic ◽  
Xix Century

Buildings preservation by the conversion of their function has become a domain of interest in the field of industrial heritage. Due to the need to expand existing housing capacities in urban areas, a large number of industrial buildings are nowadays converted into multi-family and single-family housing. The paper deals with the analysis of the functional and aesthetic internal transformation of industrial into housing spaces. The research goal is to determine the principles of conceptualization of housing functional plan within the framework of the original physical structure of the industrial building, at the architectonic composition level and housing unit (dwelling) level. Besides, the paper aims to check the existence of common patterns of the aesthetic transformation of converted spaces, examined through three epochs of the development of industrial architecture: the second half of the XIX century, the first half of the XX century and the post-WWII period.

scholarly journals Viscoelastometry for detecting oral anticoagulants

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Philipp Groene ◽  
Daniela Wagner ◽  
Tobias Kammerer ◽  
Lars Kellert ◽  
Andreas Giebl ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Prospective Observational Study ◽  
Oral Anticoagulants ◽  
Plasma Concentrations ◽  
Factor Xa ◽  
Clotting Time ◽  
Emergency Situations ◽  
Tissue Plasminogen ◽  
The Impact

Abstract Background Determination of anticoagulant therapy is of pronounced interest in emergency situations. However, routine tests do not provide sufficient insight. This study was performed to investigate the impact of anticoagulants on the results of viscoelastometric assays using the ClotPro device. Methods This prospective, observational study was conducted in patients receiving dabigatran, factor Xa (FXa)-inhibitors, phenprocoumon, low molecular weight heparin (LMWH) or unfractionated heparin (UFH) (local ethics committee approval number: 17–525-4). Healthy volunteers served as controls. Viscoelastometric assays were performed, including the extrinsic test (EX-test), intrinsic test (IN-test) Russel’s viper venom test (RVV-test), ecarin test (ECA-test), and the tissue plasminogen activator test (TPA-test). Results 70 patients and 10 healthy volunteers were recruited. Clotting time in the EX-test (CTEX-test) was significantly prolonged versus controls by dabigatran, FXa inhibitors and phenprocoumon. CTIN-test was prolonged by dabigatran, FXa inhibitors and UFH. Dabigatran, FXa inhibitors and UFH significantly prolonged CTRVV-test in comparison with controls (median 200, 207 and 289 vs 63 s, respectively; all p < 0.0005). Only dabigatran elicited a significant increase in CTECA-test compared to controls (median 307 vs 73 s; p < 0.0001). CTECA-test correlated strongly with dabigatran plasma concentration (measured by anti-IIa activity; r = 0.9970; p < 0.0001) and provided 100% sensitivity and 100% specificity for detecting dabigatran. Plasma concentrations (anti-XA activity) of FXa inhibitors correlated with CTRVV-test (r = 0.7998; p < 0.0001), and CTRVV-test provided 83% sensitivity and 64% specificity for detecting FXa inhibitors. Conclusions In emergency situations, ClotPro viscoelastometric assessment of whole-blood samples may help towards determining the presence and type of anticoagulant class that a patient is taking. Trial registration German clinical trials database ID: DRKS00015302.

scholarly journals Design space exploration for flexibility assessment and decision making support in integrated industrial building design

2021 ◽  
Author(s):  
Julia Reisinger ◽  
Maximilian Knoll ◽  
Iva Kovacic
Keyword(s):  
Decision Making ◽  
Design Process ◽  
Design Space Exploration ◽  
Design Space ◽  
Parametric Design ◽  
Space Exploration ◽  
Building Design ◽  
Assessment Tools ◽  
Industrial Building ◽  
Industrial Buildings

AbstractIndustrial buildings play a major role in sustainable development, producing and expending a significant amount of resources, energy and waste. Due to product individualization and accelerating technological advances in manufacturing, industrial buildings strive for highly flexible building structures to accommodate constantly evolving production processes. However, common sustainability assessment tools do not respect flexibility metrics and manufacturing and building design processes run sequentially, neglecting discipline-specific interaction, leading to inflexible solutions. In integrated industrial building design (IIBD), incorporating manufacturing and building disciplines simultaneously, design teams are faced with the choice of multiple conflicting criteria and complex design decisions, opening up a huge design space. To address these issues, this paper presents a parametric design process for efficient design space exploration in IIBD. A state-of-the-art survey and multiple case study are conducted to define four novel flexibility metrics and to develop a unified design space, respecting both building and manufacturing requirements. Based on these results, a parametric design process for automated structural optimization and quantitative flexibility assessment is developed, guiding the decision-making process towards increased sustainability. The proposed framework is tested on a pilot-project of a food and hygiene production, evaluating the design space representation and validating the flexibility metrics. Results confirmed the efficiency of the process that an evolutionary multi-objective optimization algorithm can be implemented in future research to enable multidisciplinary design optimization for flexible industrial building solutions.

An Introduction to the Impact Behaviour of Polymer Composites Using Simplified Beam Models

1998 ◽  
Vol 26 (2) ◽  
pp. 89-110 ◽  
Author(s):  
R. A. W. Mines
Keyword(s):  
Composite Materials ◽  
Undergraduate Students ◽  
Progressive Collapse ◽  
Structural Response ◽  
Sandwich Beams ◽  
Three Point Bending ◽  
The Past ◽  
Structural Case ◽  
The University ◽  
The Impact

The paper describes a final-year undergraduate course that has been taught at the University of Liverpool for the past three years. The main aims of the course are to introduce the student to the design of structures using multi-component (composite) materials and to the performance of such structures under impact loading. Given the complexity of generalized composite behaviour and of structural crashworthiness, a simple structural case is considered, namely, a beam subject to three-point bending. A feature of the course is that not only is linear structural response considered but also non-linear (progressive) structural collapse is covered. The course is split into four parts, namely: (i) analysis of composite laminae, (ii) analysis of laminated beams, (iii) local and global effects in sandwich beams, and (iv) post-failure and progressive collapse of sandwich beams. Static and impact loadings are considered. Comments are made on how the theories are simplified and communicated to the undergraduate students.

The impact of corporate bankruptcy on strategic management: using a textual analysis approach to analyze executives’ opinions

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Raphael Nagel ◽  
Carmen Aviles
Keyword(s):  
Strategic Management ◽  
Global Economy ◽  
Textual Analysis ◽  
New Technologies ◽  
Organizational Structures ◽  
Analysis Approach ◽  
Management Decision ◽  
Content Type ◽  
Emergency Situations ◽  
The Impact

Purpose In the past decade, the development of the global economy, the change in organizational structures and the maturing of new technologies have led to considerable changes in business structures. Emergency situations, such as the recent COVID-19 pandemic, have led many companies to declare bankruptcy. In this context, the present study aims to analyze strategic opinions of company executives in a declaration of bankruptcy. Design/methodology/approach To this end, an innovative approach is applied to strategic management and business. First, the authors conducted 14 interviews with executives, and the interview data were transcribed. Second, using textual analysis and data mining techniques, the transcripts were analyzed to understand the importance of indicators identified as relevant in companies in a declaration of bankruptcy. Findings This resulted in identification of 10 relevant indicators perceived by executives to avoid or anticipate a state of bankruptcy, including innovation, business adaptability, room for improvement in production processes, time to react to situations of alarm, layoffs, support from public institutions, suppliers, international and national regulations, impact on the industry, credits and debts. Originality/value The paper concludes with a discussion of important theoretical and practical implications of these findings for the industry. Also, strategic management decision-making strategies are presented as a result of the innovative textual analysis approach used.

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