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Author: You Lin Xu
Publisher:
ISBN: 9780864434562
Category : Building, Stormproof
Languages : en
Pages : 54
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Book Description
A series of static tests was performed on three types of light gauge steel roofing sheets to investigate effects of sheeting profiles on roofing structural behaviour under simulated wind uplift. The considered sheeting profiles were arc-tangent, trapezoidal and ribbed, and an alternate (or equivalent alternate) sheeting crest fastening system was adopted. Different roofing spans and sheeting thicknesses were included in the tests, and the effect of cyclone washers on static performance of the roofing sheets was estimated. The experimental results show that the roof sheeting behaviour under wind uplift was greatly dependent on the sheeting profiles. The shape and height of screw fastened crests affected limit values of initial failure or ultimate strength of the roofing sheets. The use of cyclone washers reduced local plastic deformation around the screw fasteners at the central support and, in general, increased the slope of load-deflection curves and failure strength. Increasing of roofing span slightly reduced the limit values of reaction force per fastener, but the allowable wind pressure still should be decreased. The use of thicker roofing sheets enhanced the roofing static failure strength and sometimes changed the roofing failure modes. The midspan load method which has been used in roof sheeting tests was also examined in this project. The measured load-fastener reaction force curves showed that two-span continuous simply supported beam assumption was reasonable in most cases. However, during large cross-sectional distortion or large local plastic deformation, such assumption was not satisfactory. The experimental results obtained by using two types of midspan loading pads indicated that the effect of loading pad surface on initial failure strength of the roofing sheets was considerable.
Author: You Lin Xu
Publisher:
ISBN: 9780864434562
Category : Building, Stormproof
Languages : en
Pages : 54
Get Book Here
Book Description
A series of static tests was performed on three types of light gauge steel roofing sheets to investigate effects of sheeting profiles on roofing structural behaviour under simulated wind uplift. The considered sheeting profiles were arc-tangent, trapezoidal and ribbed, and an alternate (or equivalent alternate) sheeting crest fastening system was adopted. Different roofing spans and sheeting thicknesses were included in the tests, and the effect of cyclone washers on static performance of the roofing sheets was estimated. The experimental results show that the roof sheeting behaviour under wind uplift was greatly dependent on the sheeting profiles. The shape and height of screw fastened crests affected limit values of initial failure or ultimate strength of the roofing sheets. The use of cyclone washers reduced local plastic deformation around the screw fasteners at the central support and, in general, increased the slope of load-deflection curves and failure strength. Increasing of roofing span slightly reduced the limit values of reaction force per fastener, but the allowable wind pressure still should be decreased. The use of thicker roofing sheets enhanced the roofing static failure strength and sometimes changed the roofing failure modes. The midspan load method which has been used in roof sheeting tests was also examined in this project. The measured load-fastener reaction force curves showed that two-span continuous simply supported beam assumption was reasonable in most cases. However, during large cross-sectional distortion or large local plastic deformation, such assumption was not satisfactory. The experimental results obtained by using two types of midspan loading pads indicated that the effect of loading pad surface on initial failure strength of the roofing sheets was considerable.
Author: J.Y. Richard Liew
Publisher: Elsevier
ISBN: 0080552056
Category : Technology & Engineering
Languages : en
Pages : 841
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Book Description
Thin-plated structures are used extensively in building construction, automobile, aircraft, shipbuilding and other industries because of a number of favourable factors such as high strength-weight ratio, development of new materials and processes and the availability of efficient analytical methods. This class of structure is made by joining thin plates together at their edges and they rely for their rigidity and strength upon the tremendous stiffness and load-carrying capacity of the flat plates from which they are made. Many of the problems encountered in these structures arise because of the effects of local buckling. The knowledge of various facets of this phenomenon has increased dramatically since the 1960s. Problem areas which were hitherto either too complex for rigorous analysis or whose subtleties were not fully realized have in these years been subjected to intensive study. Great advances have been made in the areas of inelastic buckling. The growth in use of lightweight strong materials, such as fibre-reinforced plastics has also been a contributory factor towards the need for advances in the knowledge of the far post-buckling range. The conference is a sequel to the international conference organised by the University of Strathclyde in December 1996 and this international gathering will provide the opportunity for discussion of recent developments and trends in design of thin-walled structures.
Author: P. Mäkeläinen
Publisher: Elsevier
ISBN: 0080549438
Category : Technology & Engineering
Languages : en
Pages : 895
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Book Description
ICSAS '99 - The Fourth International Conference on Steel and Aluminium Structures was a sequel to ICSAS '87 held in Cardiff, UK, to ICSAS '91 held in Singapore and to ICSAS '95 held in Istanbul, Turkey. The objective of the conference was to provide a forum for the discussion of recent findings and developments in the design and construction of various types of steel and aluminium structures.The conference was concerned with the analysis, modelling and design of light-weight or slender structures in which the primary material is structural steel, stainless or aluminium. The structural analysis papers presented at the conference cover both static and dynamic behaviour, instability behaviour and long-term behaviour under hygrothermal effects. The results of the latest research and development of some new structural products were also presented at the conference. A total of 76 papers and 30 posters were presented at the conference by participants from 36 countries in all 6 continents.
Author:
Publisher:
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 450
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Book Description
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 338
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Book Description
Author: Federico Mazzolani
Publisher: Routledge
ISBN: 1351413783
Category : Technology & Engineering
Languages : en
Pages : 869
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Book Description
Presenting a comprehensive overview of recent developments in the field of seismic resistant steel structures, this volume reports upon the latest progress in theoretical and experimental research into the area, and groups findings in the following key sections: · performance-based design of structures · structural integrity under exceptional loading · material and member behaviour · connections · global behaviour · moment resisting frames · passive and active control · strengthening and repairing · codification · design and application
Author:
Publisher:
ISBN:
Category : Australia
Languages : en
Pages : 900
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Book Description
Author: Klaus Sedlbauer
Publisher: Walter de Gruyter
ISBN: 3034615655
Category : Architecture
Languages : en
Pages : 210
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Book Description
Das Flachdach – dieser bei Architekten beliebte und gerne als fünfte Fassade beschriebene Gebäudeteil – sollte im Wesentlichen den darunter liegenden Raum vor Witterungseinflüssen schützen. Darüber hinaus optimiert die Integration flacher Dächer als Gründach, Dachterrasse, Verkehrsfläche oder gar als ertragreiches Solardach den Nutzen. Die fachgerechte Realisierung in der Praxis ist jedoch anspruchsvoll: der „Flachdach Atlas“ verschafft dem Planer neben grundsätzlichen Konstruktionsregeln einen Überblick über die Nutzungs- und Konstruktionsarten sowie die Regelaufbauten für Flachdächer. Zusammen mit den wichtigsten Normen und Regelwerken runden Konstruktionsdarstellungen der wesentlichen Anschlusspunkte die Publikation ab.
Author: Gregory J Hancock
Publisher: CRC Press
ISBN: 9789058095893
Category : Technology & Engineering
Languages : en
Pages : 724
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Book Description
This volume is an outcome of the international conference on advances in structures: steel, concrete, composite and aluminium in Sydney in 2003. It focuses on researches in composite design, fire engineering, light gauge construction, advanced structural analysis and concrete filled tubes.
Author: Shuenn-Yih Chang
Publisher: CRC Press
ISBN: 0415643422
Category : Technology & Engineering
Languages : en
Pages : 976
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Book Description
Advances in Civil Engineering and Building Materials presents the state-of-the-art development in: - Structural Engineering - Road & Bridge Engineering - Geotechnical Engineering - Architecture & Urban Planning - Transportation Engineering - Hydraulic Engineering - Engineering Management - Computational Mechanics - Construction Technology - Building Materials - Environmental Engineering - Computer Simulation - CAD/CAE Emphasis was given to basic methodologies, scientific development and engineering applications. Advances in Civil Engineering and Building Materials will be useful to professionals, academics, and Ph.D. students interested in the above mentioned areas.
