Jointing - Verbindungen und Stöße - Assemblage - Empalme
N°
127– Preliminary European Recommendations for the Testing and Design
of Fastenings for Sandwich Panels
The European product standard for sandwich panels, EN 14509, covers the requirements and verification methods for the essential properties of factory made sandwich panel products. Fastenings are typically made at a building site outside the factory. Thus, fastenings are not a subject for a European product standard. The European Recommendations, CIB Publication No. 257 and ECCS Publication No. 115, published in 2000 and 2001, give loading arrangements and proceudures with which to determine the tensile and shear resistance of both direct and concealed fastenings. These new recommendations update the previously published procedures for fastenings and extend the concept to include also fastenings fixed in a face layer.
The sources of information taken into account in the writing of these recommendations have included the previously published recommendations, relevant new research results and the current practice with regard to the available screw fastenings and concealed fastenings. The resulting recommendations are believed to be particularly applicable to the typical metal sheet-faced sandwich panels with cores of polyurethane or polystyrene foam or mineral wool which are on the market today. However, the rules and methods can be applied to other and new types of fastenings and sandwich panel products. When applying these recommendations, the user shall take into account the mechanical behaviour of the fastening in practice and shall take care to ensure the correspondence of the observed behaviour and resistance of the fastening in the tests and the actual behaviour in practice.
The recommendations are published as “Preliminary European Recommendations for the Testing and Design of Fastenings for Sandwich Panels”. There are two reasons for the prefix “preliminary”. The status of full-scale tests, when compared to tests using small-size specimens requires clearer definition. The rules for the adjustment of test results to nomimal values of the essential properties of the face and core materials require more detailed study in order to cover more reliably all types of core materals. Research anticipated in near future may provide the required information and make possible the publication of this document as “European Recommendations”.
Written in English, 64 pages.
ECCS TC7 TWG 7.9 / CIB Working Commission W056
2009, ECCS / CIB, Price: 17€
N°
126– European Recommendations for the Design of Simple Joints in
Steel Structures
This document intends to provide European recommendations for the design
of simple joints in steel structures.
Eurocode 3 Part 1-8 “Design of Connections” gives precise
guidelines for the design of structural joints aimed at transferring
bending moments. But for simple joints, information is only provided
in Eurocode 3 for some specific failure modes. The way on how internal
forces distribute amongst the various components within the joints is
also not explicitly described.
The present publication fills this gap by proposing practical guidelines
for the design of simple joints commonly used in Europe. The design
rules presented in this document are in full agreement with the principles
of Eurocode 3, and in particular of Eurocode 3 Part 1-8.
This document has been prepared at Liège University, editorially
checked by Prof. D. Anderson from Warwick University and approved by
the Technical Committee TC10.
Authors: J.P. Jaspart, J.F. Demonceau, S. Renkin, M.L. Guillaume
Written in English, 90 pages.
2009, ECCS, Price: 25€
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N°
124 : The Testing of Connections with Mechanical Fasteners in Steel
Sheeting and Sections
2009 - 2nd Edition, ECCS , Price: 15€
This document replaces the earlier publication by the European Convention of Constructional Steelwork, “European Recommendations for the Testing of Connections in Profiled Steel Sheeting and Sections”, Publication no. 21, first published in 1977 and revised in 1983. Since this publication, the use of profiled steel and cold-formed steel has grown considerably, particularly in the use of coldformed steel sections in structural framing. The current document has been restructured to conform to guidance in current Eurocodes, which have also been introduced since 1983. The document has been prepared by the Technical Working Group 7.10, part of the ECCS Technical Committee TC7, Cold-formed steel structures.
N°
109 : Design of Composite Joints for Buildings
English, February 1999
Across the world, widespread use is made of structural steelwork in
frames for multi-storey buildings. Important factors which influence
this include speed of construction , adaptability for future use and
the low cost of the basic structure. The most cost-effective structural
option is often composite steel-concrete construction, whether in the
form of composite steel beams and slabs or slim floor systems.
This publication describes how beam-to-column and beam-to-beam connections
may be deliberately designed with composite action to provide quantifiable
end restraint. Guidance on global analysis of frames is included, with
both elastic and plastic methods considered. Thus the effects of joint
behaviour at serviceability and ultimate limit states can be accounted
for. Composite joints require little additional site work in return
for substantial benefits in terms of greater load capacity, better performance
in service and reductions in steel section. Their use in recent practice
includes the prestigious Millennium Tower in Vienna.
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N°
79: European Recommendations for Bolted Connections with Injection Bolts
In this document, the ECCS Committee TC10 "Structural Connections"
presents recommendations for the application, design calculation and
installation of bolted connections with injection bolts. These are bolts
in which the cavity produced by the clearance between the bolt and the
wall of the hole is completely filled up with a two-component resin.
After injection and curing of the resin, the connection is slip resistant.
Injection bolts have been successfully applied in the Netherlands since
1970. Important applications are road and railway bridges, cranes and
crane runway girders. The application in other countries, however, has
been far less, mainly because of the lack of accepted guidelines. ECCS
TC10 trusts that these recommendations will remove this obstacle.
N° 67: Analysis and Design of Steel Frames with Semi-Rigid Joints
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N°
64: Acceptance Inspection of Grade 10.9 Structural Fasteners intended
for controlled tightening
English, 1991, 25pp In view of the stress-levels in high strength structural fasteners, and considering the absolute aim of maintaining the clamping forces in the joints during the life-time of the structure, acceptance inspection based only on ISO 3269 is not sufficient. Therefore additional acceptance criteria have been developed.
However in order to avoid excessively high inspection costs, homogeneity of lots has been taken into consideration in order to reduce the number of tests.
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038 - European Recommendations for Bolted Connections in Structural Steelwork
1985, ECCS, Price: 0€Get PDF Free