The proceedings of the 13th international conference "Modern Building Materials, Structures and Techniques" (MBMST 2019)最新文献

{"title":"Application of the discrete element method (DEM) to particle laden multi-phase flows","authors":"H. Kruggel-Emden","doi":"10.3846/mbmst.2019.090","DOIUrl":"https://doi.org/10.3846/mbmst.2019.090","url":null,"abstract":"The discrete element method (DEM) coupled with methods for computational fluid dynamics (CFD) is a very\u0000capable instrument to capture particle-laden multi-phase flows. While often the flow around individual particles is not\u0000resolved on the CFD-side particle interaction is captured in detail. More recently resolved flow simulations have gained\u0000in popularity which can be also based on the Lattice Boltzmann method (LBM). By coupling the latter with the DEM\u0000particle/fluid systems can even be studied in more detail. A brief review of both approaches is performed and possible\u0000applications are discussed.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117210171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental investigation of secondary use of punched metal plate fasteners in timber structures","authors":"Mantas Stulpinas, T. Gečys","doi":"10.3846/mbmst.2019.045","DOIUrl":"https://doi.org/10.3846/mbmst.2019.045","url":null,"abstract":"In this article, the possibility of secondary use of punched metal plate fasteners for timber structures is experimentally investigated. The secondary used metal plate fasteners are experimentally tested in both positions, parallel and perpendicular to the timber grain. For this purpose, the tension-to-tension test setup is used. Laboratory experiments of the secondary used metal plate fasteners are performed in parallel with the corresponding connection\u0000with the same size new metal plate fastener. All specimens for laboratory experiments are prefabricated at the factory.\u0000Laboratory experiments are done with an aim to investigate both, the reduction of the load bearing capacity and the\u0000stiffness, when metal plate fasteners are secondary used. In this article, the main design principles of joints with metal\u0000plate fasteners according to the Eurocode 5, are also discussed. The comparison between the strength and stiffness of\u0000the firstly and secondary used joints is provided. The comparison between the experimental and theoretical strength\u0000and stiffness calculation results according to the Eurocode 5 is provided too. The received results show high potential\u0000for the future research in secondary used punched metal fasteners, as the reduction of the strength and stiffness is\u0000around 20 percent, comparing with the first time used fasteners.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130132945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental study of CFST column to steel beam bolted connection with curved end-plates","authors":"Andrej Mudrov, A. Šapalas, G. Šaučiuvėnas","doi":"10.3846/mbmst.2019.055","DOIUrl":"https://doi.org/10.3846/mbmst.2019.055","url":null,"abstract":"This paper presents results of experimental study of a bolted column-beam connection with an extended\u0000curved end-plate joining steel beam and a hollow core Concrete-Filled Steel Tube (CFST). Column concrete hollow\u0000core was formed by centrifugal casting process that allowed decreasing porosity, increasing homogeneity and strength\u0000of the concrete. It was expected that strength and stiffness of the joint would be significantly affected by spalling of the\u0000concrete core due to transverse action, which would limit rotation of the joint and bearing capacity of the column.\u0000However, the concrete hollow core had no prominent signs of fracture – bending strength of the joint was determined\u0000by punching shear of the steel tube wall. Further result analysis has shown that, in reference to Eurocode 3, the joint\u0000may be classified as semi-rigid and that non-uniform initial contact between the end-plates and the column can reduce\u0000stiffness of the joint. In addition to this, it has been found that the analytical Eurocode component method is in close\u0000agreement with the attained test results, but its feasibility should be validated against additional tests with other failure\u0000modes.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122502524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High rise buildings in Europe from energy performance perspective","authors":"S. Sajjadian, L. Tupėnaitė, Loreta Kanapeckiene, Jurga Naimaviciene, Sarah Radif, M. Amado","doi":"10.3846/mbmst.2019.029","DOIUrl":"https://doi.org/10.3846/mbmst.2019.029","url":null,"abstract":"The United States is well known for the birthplace of tall buildings in the world since the nineteenth\u0000century. The trend continued across all continents and in 1940, Europe developed its first tall building of over 100\u0000meters in Genoa, Italy. Building codes, technological development, energy crisis, etc. have all influenced the built\u0000environment in different ways, a very visible sign of such impacts can be seen in high rise buildings not only on their\u0000architectural style but also on their performance. Different studies worldwide investigate energy performance of\u0000modern high-rise buildings; however, evolution of such buildings is rarely considered; energy performance of\u0000different high-rise buildings’ generations is seldom investigated and compared. To close a gap this study aims to make\u0000a closer look of how technological developments and energy crisis affected high-rise buildings in Europe with a focus\u0000on their energy performance.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128238712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aiming at the improvement of safety at Indian construction workplace","authors":"V. Chellappa, U. Salve, R. Liias","doi":"10.3846/mbmst.2019.110","DOIUrl":"https://doi.org/10.3846/mbmst.2019.110","url":null,"abstract":"Accidents in construction industry have the major negative impacts in many countries. The objectives of\u0000this paper are: (1) examine the current safety practices in Indian construction industry (2) identify the causes of accidents (3) recommend solutions to improve safety performance at Indian construction workplace. Interviews were\u0000conducted with experienced professionals in Indian construction industry. Results indicated that accidents were caused\u0000by the combination of organizational and individual factors. Based on these findings, it was suggested that adoption of\u0000information technologies in various ways would help to reduce accidents by addressing the following issues (1) safety\u0000planning, (2) safety education and (3) safety monitoring.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123738949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction project stakeholders’ perceptions and expectations of their roles in BIM-based collaboration","authors":"Arvydas Kiaulakis, T. Vilutienė, V. Šarka, E. Šarkienė","doi":"10.3846/mbmst.2019.036","DOIUrl":"https://doi.org/10.3846/mbmst.2019.036","url":null,"abstract":"The article presents the results of the survey aimed to analyze the attitude and perceptions regarding the use\u0000of BIM for data handling and analysis. Two target groups were researched, according to the role they play in building\u0000processes, namely public administrations (including tenants, owners, and building administrators) and Professionals\u0000(engineers / architects). The study conducted during the Net-UBIEP (Network for Using BIM to Increase the Energy\u0000Performance) project. The purpose of this study was to assess the implementation of building information modeling\u0000(BIM) as a tool and a process among key stakeholders in order to understand the current use of BIM, benefits of using\u0000BIM, obstacles of using BIM as well as possible future use. This study can be used as a pre-analysis of feedback from\u0000building users and construction professionals and can contribute to the co-adaptation process between BIM knowledge\u0000providers and BIM users.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115846888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Free vibration of rectangular nanoplate strips","authors":"J. Lellep, Mainul Hossain","doi":"10.3846/mbmst.2019.026","DOIUrl":"https://doi.org/10.3846/mbmst.2019.026","url":null,"abstract":"Natural vibrations of nanobeams and nanosheets are investigated with the help of nonlocal theories of elasticity. The vibration analysis is based on the size-dependent non-local theory of elasticity developed by A. C. Eringen. It is assumed that the nano-structures under consideration have rectangular cross sections with piece wise constant dimensions and that the nanoplates are weakened with defects. The influence of the crack on the vibration of the nanoplate is assessed with the aid of additional local compliance developed in previous papers. Numerical results are presented for one- and two-stepped nanoplates.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116068790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New model for the selection of effective wall solutions for residential buildings","authors":"J. Tamošaitienė, Tomas Starta","doi":"10.3846/mbmst.2019.106","DOIUrl":"https://doi.org/10.3846/mbmst.2019.106","url":null,"abstract":"Currently, the construction sector is facing requirements for higher quality and efficiency standards as well\u0000as objectives related to value creation. In construction, rational decision-making problems often involve creating a\u0000unique complex of criteria, which must consider multiple requirements and conditions. The paper presents the developed\u0000model for the selection of multi-layered external walls of a residential building. The model considers the following\u0000aspects and parameters: time, cost, quality, environmental conditions, aspects of sustainable development, and problemsolving benefits received from the assessment of alternatives and the development of the model. Game theory was used\u0000to calculate the defining rational decision. For the calculations was used game theory: Bayes, Wald’s rule, Savage criterion, Laplace’s rule. This study presents the developed model for the selection of multi-layered external walls of a\u0000residential building and calculation results based on game-theory rules, which are effective tools for rational decisionmaking.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133243482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High strength steel cold-formed hollow sections: implication of cross-section aspect ratio and slenderness characteristics on flexural behavior","authors":"Shady Adib, Ieva Misiūnaitė","doi":"10.3846/mbmst.2019.066","DOIUrl":"https://doi.org/10.3846/mbmst.2019.066","url":null,"abstract":"Cold-formed tubular sections are widely applicated for a variety of structural solutions, primarily due to their\u0000advantageous structural properties, inherent aesthetic characteristics and ease of prefabrication and mass production.\u0000High strength steels (HSS) are attaining growing attention from structural engineers and researchers due to their potential\u0000on the design of lightweight and more economic structures. In combination with cold-formed tubular sections HSS\u0000might serve as improvement on structural efficiency as well as solution for structural problems when usage of normal\u0000steel is limited due to insufficient strength. However, innovative structural solutions are often faced problems related\u0000with absence of appropriate design procedures. In most of the design codes cross-section design is performed following\u0000the traditional classification procedure based on the slenderness of the individual constituents without respect to their\u0000interaction. Moreover, tubular sections are generally treated in the same manner without respect to their formation route,\u0000embedding an elastic-perfectly plastic material model, without reference to the cold-formed sections increased strength\u0000and reduced ductility over the flat material. This paper reports on the numerical study of cold-formed HSS tubular beams\u0000deformation response, with a focus on the effect of cross-section constituent’s interaction and strength enhancement\u0000influence on the cross-section slenderness. Finite element (FE) models were first developed and validated against existing test results. Upon validation against the experimental results, parametric studies were carried out to expand the\u0000available flexural response data over a range of cross-section aspect ratio, cross-section slenderness and steel grades.\u0000The obtained numerical results were used to assess the suitability of the current design codes cross-sections classification\u0000for cold-formed HSS tubular beams.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134171494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial ageing of Silane Terminated Polymer adhesive for façade application","authors":"M. Zikmundová, K. Machalická, M. Eliášová, M. Vokáč","doi":"10.3846/mbmst.2019.048","DOIUrl":"https://doi.org/10.3846/mbmst.2019.048","url":null,"abstract":"Adhesive bonding is commonly used in the automotive and aerospace industry, where it has proved its\u0000advantages. Nowadays, the bonded joints are starting increasingly used in civil engineering, where they can be applied\u0000in façade structure. Traditionally used structural silicones are resistant to the external environment, but their low strength\u0000and elasticity do not meet the requirements of civil engineering. The greater spread of higher strength adhesives such as\u0000acrylates or polyurethanes is hampered by the lack of knowledge of their ageing resistance. The paper is focused on the experimental \u0000analysis of a double-lap shear joints of Silane Terminated Polymer (STP) adhesive applied in joints with aluminium and \u0000Zn-electroplated steel substrates with various surface treatments. The specimens were exposed to artificial ageing \u0000according to the technical regulations of the Timber Research and Development Institute in Prague. According to this \u0000regulation, specimens were exposed to changing of high and low temperatures, UV-radiation and humidity. This ageing \u0000should simulate 5 years in the climatic environment of Central Europe. Specimens exposed to laboratory ageing are \u0000compared with reference set of test specimens that were not artificially aged. STP demonstrated excellent \u0000resistance to laboratory ageing.","PeriodicalId":169478,"journal":{"name":"The proceedings of the 13th international conference \"Modern Building Materials, Structures and Techniques\" (MBMST 2019)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132721792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}