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Zeitschriftenartikel zum Thema "Curtain wall mullions":
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Zhang, Qiao, Yue Liu und Shi Shi Wang. „Unit Type Curtain Wall Mullions to Strengthen the Design and Structure Calculations“. Applied Mechanics and Materials 275-277 (Januar 2013): 989–93. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.989.
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During the design process of Unit type curtain wall, there are lots of problems which are worthy of exploring and need to be addressed. Through the International Plaza curtain wall engineering, the methodology of design is that forming a cross-section of steel and aluminum combination by inserting steel ferrule in to unit male frame and the female frame; meanwhile, by using a reasonable design to the shape and size, we can meet the requirement of the overall strength and stiffness of the unit mullion. Mechanical model, actual design of the project parameters and drawing conditions, which detail the design process and calculation results, are reasonable enough for curtain walls researchers and designers.
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Azari-N, Rahman, und Yong-Woo Kim. „Comparative assessment of life cycle impacts of curtain wall mullions“. Building and Environment 48 (Februar 2012): 135–45. http://dx.doi.org/10.1016/j.buildenv.2011.09.010.
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Bârnaure, Mircea, und Mihai Voiculescu. „THE SEISMIC BEHAVIOUR OF CURTAIN WALLS: AN ANALYSIS BASED ON NUMERICAL MODELLING“. Mathematical Modelling in Civil Engineering 9, Nr. 4 (01.12.2013): 1–8. http://dx.doi.org/10.2478/mmce-2013-0013.
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Abstract The paper proposes a numerical model to estimate the structural behaviour of a stickbuilt glazed curtain wall system subjected to an imposed displacement of the supports in the plane of the wall. We discuss the role of the parameters that influence on the maximum inter-storey drift corresponding to the service limit state of the wall. The considered parameters are the dimensions of the glazed panel, the gap between the panel and the aluminium frame and the gap between the supports and the mullions. We discuss the problem of remnant deformation of glazed panels, and of misalignment as serviceability criteria. Comparisons are made to laboratory testing results.
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LoVerde, John, und Wayland Dong. „Methods for reducing flanking airborne noise transmission through mullions of curtain wall systems.“ Journal of the Acoustical Society of America 124, Nr. 4 (Oktober 2008): 2463. http://dx.doi.org/10.1121/1.4782680.
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Lee, Adam D., Jed A. Alimanza, Paul Shepherd und Mark C. Evernden. „Axial Rotation and Lateral Torsional Buckling of Extruded Aluminium Mullions in Curtain Wall Facades“. Structures 20 (August 2019): 658–75. http://dx.doi.org/10.1016/j.istruc.2019.05.010.
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Yang, Yan, Jizhuo Huang und Xiaoying Li. „The effect of the bolt spacing on the performance of the steel-aluminum composite mullions of curtain wall“. Thin-Walled Structures 117 (August 2017): 239–46. http://dx.doi.org/10.1016/j.tws.2017.04.020.
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Naqash, Muhammad Tayyab, Antonio Formisano und Gianfranco De Matteis. „Aluminium Framing Members in Facades“. Key Engineering Materials 710 (September 2016): 327–32. http://dx.doi.org/10.4028/www.scientific.net/kem.710.327.
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Curtain wall systems are considered as envelop of a building, generally made of a lightweight material such as aluminium. The curtain wall façade does not carry any weight from the building, rather it transfers loads that are incident upon it to the main building structure through connections with floors or columns. This paper addresses some key issues in satisfying the respective limit state design checks. Two mullion profiles 85mm and 125mm deep of three manufacturers are analysed showing that the different extrusions of mullion profiles does not have any drastic effect on its structural behavior. Due to the versatility and lightweight, aluminum has many advantages when used as a curtain wall framing material, but it has the distinct disadvantage of being three times more deformable than steel. Therefore, the fulfillment of serviceability limits is an important issue when designing the framing members, in order to avoid damage of connected glasses. Also, the importance of connections and steel insert are highlighted. Finally, some completed and in-progress ALUTEC projects with different curtain wall systems are presented. The paper is therefore interesting for the Façade Engineers involved in the design of curtain walls.
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Curtain wall industry is the major user of aluminium as a structural material in buildings, with two basic curtain wall systems: stick and unitised. The latter is preassembled in shops, with the main feature that frame profiles are split in two interlocking halves. Such cross sections are complex, open and prone to lateral torsional buckling. General formulas for the calculation of elastic critical moment for lateral-torsional buckling are provided in the EN 1999-1-1, with a long and complicated procedure for non-symmetrical sections which makes it pretty impractical for everyday use. The problem of such sections can also be assessed by FEM modelling, which is a time consuming and complex process. Curtain wall industry is in a need of a swift, if approximate and conservative, method for checking the risk of lateral torsional buckling of profiles with non-symmetrical cross sections. Some available analytical methods are applied on a practical example and their results compared to those obtained using FEM modelling.
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Weggel, David C., Brian J. Zapata und Michael J. Kiefer. „Properties and Dynamic Behavior of Glass Curtain Walls with Split Screw Spline Mullions“. Journal of Structural Engineering 133, Nr. 10 (Oktober 2007): 1415–25. http://dx.doi.org/10.1061/(asce)0733-9445(2007)133:10(1415).
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EGUCHI, Junko, Kenichi IKEDA, Fumihiko CHIBA, Yoshifumi OHMIYA und Shinichi SUGAHARA. „EXPERIMENTAL STUDY FOR BEHABIOR OF THE MULLIONS OF STICK SYSTEM ALUMINUM CURTAIN WALLS EXPOSED TO STANDARD FIRE“. Journal of Structural and Construction Engineering (Transactions of AIJ) 82, Nr. 738 (2017): 1287–97. http://dx.doi.org/10.3130/aijs.82.1287.
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Glass facade/curtain wall assemblies are commonly used in modern building construction as part of building envelop. This system has a number of advantages, including pleasant architectural appearance, building energy optimization, acceptable fire resistance and low maintenance. However, they pose tremendous risk towards maliciously intended acts of terror in the form of bomb blasts. The literature review conducted revealed lack of previous research on mullion strengthening/hardening. The present study has the objective of developing hardening techniques for curtain wall mullions to withstand high-intensity impulsive blast loads.
Combined experimental and analytical research was conducted for the development of mullion retrofit techniques using the Shock Tube Facility of the University of Ottawa. The test program involved retrofitting existing, commercially used aluminum mullions with steel plates and subjecting them to different levels of blast loads. The mullions were retrofitted with three techniques with the help of steel L shaped angles, steel plates and with a combination of steel HSS sections and plates. The results indicated an increase of load carrying capacity of the mullions up to a factor of 2.2 with up to 30% reduction in mid-height displacements. It was shown that the steel hardening components developed full composite action with the existing aluminum section, indicating the effectiveness of the hardening technology.
The analytical research followed the experimental research with the main objective of validating experimental results, as well as validating the assumption of full composite action between the core aluminum mullion and the hardening plates. The first step was to develop resistance functions followed by the validation of main analytical tool RC-Blast and the UFC charted solution. Following excellent agreement between these two analytical tools, RC-Blast was further validated against the experimental results. In addition, Pressure-impulse (P-I) diagrams were developed as design aids for different pressure-impulse combinations.
The retrofit techniques developed were applied to a selected prototype building to assess their feasibility for use in practice. Two different blast threats were considered for this application. Conclusions were drawn regarding the effectiveness of the curtain wall hardening techniques for use in practice.
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Kang, Min Jeong M. Eng Massachusetts Institute of Technology. „High performance curtain wall mullion section design with various densities of gyroid“. Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107061.
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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2016. Cataloged from PDF version of thesis. Includes bibliographical references (pages 87-91). The thermal bridge problem in building fagades has become a topic of interest as the energy performance of building enclosure design required improvements with a global lead in sustainable building design. Curtain wall fagade systems are widely used for recent high-rise buildings, and the thermal bridge issue occurs mainly within the aluminum frame of the curtain wall system. In addition to the thermal bridging effects, the conventional curtain wall fagade designs have limitations in increasing the stiffness of the mullion. As to address the lack of an innovative solution to solve both issues, this thesis proposes utilizing a cellular structure in mullion design. In particular, this thesis has selected a single-gyroid structure, which is an open cell foam structure that has the minimum surface area necessary to span a region of space. The thesis explores various aspects of the application that extend from a rapid modeling method of gyroid structure, experiments, and simulations along with theoretical values for mechanical and thermal properties of gyroid, to topology optimization of the various densities of gyroid in the composite structure. The results are expected to improve the curtain wall designs with future experimental verifications. by Min Jeong Kang. M. Eng.
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Kalthoum, Ahmad. „Aluminium façades in modern construction“. Master's thesis, 2019. http://hdl.handle.net/10773/27182.
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This dissertation aims to elaborate in aluminium façade systems and the materials included and presents the activities in curricular internship held over six months at Martifer Alumínios, S.A.
This dissertation focuses on the commonly used materials in aluminium façade systems and presents the main properties that defines the functionalities of façades and provides the whole building with qualities like insulation and weatherproofing.
The curricular internship was held at the pre-construction team of Martifer, it included participation and development in the realization of approval drawings and manufacturing plans of London Dock building C1 façade construction project.
The last chapter in this dissertation elaborates more specifically in fire resistance of an Aluminium mullion. Based on Eurocodes (EN 1990, EN 1991-1-2, EN 1999-1-1, EN 1999-1-2), the fire resistance verifications were concluded for the studied aluminium mullion with and without fire protection considered Esta dissertação tem como objetivo elaborar sistemas de fachada em alumínio e os materiais incluídos. Em complemento são apresentadas as atividades do estágio curricular realizadas durante seis meses na Martifer Alumínios, S.A.
A dissertação elabora os materiais frequentemente utilizados em sistemas de fachadas em alumínio e apresenta ainda as principais propriedades que definem as funcionalidades das fachadas que visam fornecer qualidades ao edifício como isolamento e impermeabilização.
O estágio curricular foi realizado na equipa de pré-construção da Martifer, incluindo a participação e desenvolvimento na realização de desenhos de aprovação e planos de fabrico no projeto que envolve a preparação de fachada do London Dock edifício C1.
O último capítulo desta dissertação elabora mais especificamente a resistência ao fogo de um montante de alumínio. Com base nos Eurocódigos (EN 1990, EN 1991-1-2, EN 1999-1-1, EN 1999-1-2), foram concluídas as verificações de resistência ao fogo para um montante de alumínio com e sem proteção contra incêndio Mestrado em Engenharia Civil
Buchteile zum Thema "Curtain wall mullions":
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C.C., Baniotopoulos, Koltsakis E., Preftitsi F. und Panagiotopoulos P.D. „Aluminium Mullion-Transom Curtain Wall Systems“. In Light-Weight Steel and Aluminium Structures, 433–40. Elsevier, 1999. http://dx.doi.org/10.1016/b978-008043014-0/50153-0.
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Konferenzberichte zum Thema "Curtain wall mullions":
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Kennedy, Benjamin T., und David C. Weggel. „Energy Limit States and Maximum Mullion End Rotations for Nearly-Conventional Curtain Walls Subjected to Extreme Out-of-Plane Loads“. In Structures Congress 2009. Reston, VA: American Society of Civil Engineers, 2009. http://dx.doi.org/10.1061/41031(341)144.
