Mottram, J. Toby (2013) Rationale for simplifying the strength formulae for the design of multi-row bolted connections failing in net tension. In: 6th International Conference for Advanced Composites in Construction (ACIC 2013), Queen’s University of Belfast, 10-12 September 2013. Published in: Proceedings 6th International Conference on Advanced Composites in Construction (ACIC 2013) pp. 383-392.

Preview

Text WRAP_Mottram_8773432-es-291113-mottram_jt_acic_3013_conf_10-12_09_2013-2.pdf - Accepted Version Download (344Kb) | Preview

Request Changes to record.

Abstract

Hart-Smith [1] developed a set of closed form strength formulae for a semi-empirical approach to determine the net tension strength of multi-row bolted connections with composite materials. Mottram [2] showed that, for a pultruded fibre reinforced polymer material, the approach to be reliable (and conservative) for the configuration comprising two rows with a single bolt per row. This led to the formulae being developed into clauses in an American pre-standard for Load and Resistance Factor Design (LRFD) of Pultruded Fiber-Reinforced Polymer (FRP) Structures [3]. Because the expressions in the Hart-Smith formulae are not simple, the message coming from the practitioners, on the ASCE/SEI Fiber Composites And Polymers Standards committee (FCAPS) tasked with developing the pre-standard [3] into a standard, is that they would not use them when designing bolted connections. Taking stock of the specified geometries, bolt details and design parameters permitted by the pre-standard [3] the author conducted an analytical
parametric study using the Hart-Smith formulae with the aim of establishing simplified forms that could be routinely used in the design office. Presented in this paper is the provenance to this code-specific work when the connection has more than a single row of bolts. A presentation is given to what has been lost, in terms of calculated net tension strength, by providing the
simplified strength formula in the mandatory part to the standard. To enable the designer to be able to take full advantage of the Hart-Smith design approach [1, 2], the ‘complicated’ formulae and their accompanying mandatory-style text are to be found in an appendix with the standard’s commentary [3].

Item Type:	Conference Item (Paper)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Composite materials , Composite materials -- Mathematical models , Engineering design
Journal or Publication Title:	Proceedings 6th International Conference on Advanced Composites in Construction (ACIC 2013)
Publisher:	NetComposites Ltd.
Official Date:	September 2013
Dates:	Date Event September 2013 UNSPECIFIED
Date of first compliant deposit:	26 December 2015
Page Range:	pp. 383-392
Status:	Peer Reviewed
Funder:	Engineering and Physical Sciences Research Council (EPSRC)
Grant number:	EP/H042628/1 (ESPRC)
Conference Paper Type:	Paper
Title of Event:	6th International Conference for Advanced Composites in Construction (ACIC 2013)
Type of Event:	Conference
Location of Event:	Queen’s University of Belfast
Date(s) of Event:	10-12 September 2013

Request changes or add full text files to a record

Repository staff actions (login required)

View Item

Downloads