Duration of load effect on curved glulam beams. Part 1. Short term reference tests

Shankare Gowda, Alpo Ranta-Maunus

Research output: Book/ReportReport

5 Citations (Scopus)

Abstract

This research is part of an European project concerning the duration of load effect on the strength of different sized timber beams and is carried out in co-operation between the five EU countries. This report concerns the behaviour of curved glued laminated timber beams in short term loading, and forms a reference for later experiments to be carried out under long term loading. Tensile strength perpendicular to grain direction is obtained based on 24 tests which include three different sizes: length 5 m or 7 m, width 90 mm or 140 mm and height 600 mm. These results are also compared with earlier results carried out at VTT. Experimental results reveal that tensile strength perpendicular to grain observed in curved beams under short term loading has a strong dependence on the size of beam, both for width and length. The strength of tested curved beams is, however, higher than can be predicted based on tensile test results.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages69
ISBN (Print)951-38-4896-5
Publication statusPublished - 1996
MoE publication typeNot Eligible

Publication series

SeriesVTT Tiedotteita - Meddelanden - Research Notes
Volume1741
ISSN1235-0605

Fingerprint

Timber
Tensile strength
Experiments

Keywords

  • wooden structures
  • timber
  • beams
  • loads
  • tests
  • glulam beams
  • strength time
  • structural timber
  • comparison

Cite this

Gowda, S., & Ranta-Maunus, A. (1996). Duration of load effect on curved glulam beams. Part 1. Short term reference tests. Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Meddelanden - Research Notes, Vol.. 1741
Gowda, Shankare ; Ranta-Maunus, Alpo. / Duration of load effect on curved glulam beams. Part 1. Short term reference tests. Espoo : VTT Technical Research Centre of Finland, 1996. 69 p. (VTT Tiedotteita - Meddelanden - Research Notes, Vol. 1741).
@book{2a3131575e7a4e64a7b4033ef2ee8d6f,
title = "Duration of load effect on curved glulam beams. Part 1. Short term reference tests",
abstract = "This research is part of an European project concerning the duration of load effect on the strength of different sized timber beams and is carried out in co-operation between the five EU countries. This report concerns the behaviour of curved glued laminated timber beams in short term loading, and forms a reference for later experiments to be carried out under long term loading. Tensile strength perpendicular to grain direction is obtained based on 24 tests which include three different sizes: length 5 m or 7 m, width 90 mm or 140 mm and height 600 mm. These results are also compared with earlier results carried out at VTT. Experimental results reveal that tensile strength perpendicular to grain observed in curved beams under short term loading has a strong dependence on the size of beam, both for width and length. The strength of tested curved beams is, however, higher than can be predicted based on tensile test results.",
keywords = "wooden structures, timber, beams, loads, tests, glulam beams, strength time, structural timber, comparison",
author = "Shankare Gowda and Alpo Ranta-Maunus",
year = "1996",
language = "English",
isbn = "951-38-4896-5",
series = "VTT Tiedotteita - Meddelanden - Research Notes",
publisher = "VTT Technical Research Centre of Finland",
address = "Finland",

}

Gowda, S & Ranta-Maunus, A 1996, Duration of load effect on curved glulam beams. Part 1. Short term reference tests. VTT Tiedotteita - Meddelanden - Research Notes, vol. 1741, VTT Technical Research Centre of Finland, Espoo.

Duration of load effect on curved glulam beams. Part 1. Short term reference tests. / Gowda, Shankare; Ranta-Maunus, Alpo.

Espoo : VTT Technical Research Centre of Finland, 1996. 69 p. (VTT Tiedotteita - Meddelanden - Research Notes, Vol. 1741).

Research output: Book/ReportReport

TY - BOOK

T1 - Duration of load effect on curved glulam beams. Part 1. Short term reference tests

AU - Gowda, Shankare

AU - Ranta-Maunus, Alpo

PY - 1996

Y1 - 1996

N2 - This research is part of an European project concerning the duration of load effect on the strength of different sized timber beams and is carried out in co-operation between the five EU countries. This report concerns the behaviour of curved glued laminated timber beams in short term loading, and forms a reference for later experiments to be carried out under long term loading. Tensile strength perpendicular to grain direction is obtained based on 24 tests which include three different sizes: length 5 m or 7 m, width 90 mm or 140 mm and height 600 mm. These results are also compared with earlier results carried out at VTT. Experimental results reveal that tensile strength perpendicular to grain observed in curved beams under short term loading has a strong dependence on the size of beam, both for width and length. The strength of tested curved beams is, however, higher than can be predicted based on tensile test results.

AB - This research is part of an European project concerning the duration of load effect on the strength of different sized timber beams and is carried out in co-operation between the five EU countries. This report concerns the behaviour of curved glued laminated timber beams in short term loading, and forms a reference for later experiments to be carried out under long term loading. Tensile strength perpendicular to grain direction is obtained based on 24 tests which include three different sizes: length 5 m or 7 m, width 90 mm or 140 mm and height 600 mm. These results are also compared with earlier results carried out at VTT. Experimental results reveal that tensile strength perpendicular to grain observed in curved beams under short term loading has a strong dependence on the size of beam, both for width and length. The strength of tested curved beams is, however, higher than can be predicted based on tensile test results.

KW - wooden structures

KW - timber

KW - beams

KW - loads

KW - tests

KW - glulam beams

KW - strength time

KW - structural timber

KW - comparison

M3 - Report

SN - 951-38-4896-5

T3 - VTT Tiedotteita - Meddelanden - Research Notes

BT - Duration of load effect on curved glulam beams. Part 1. Short term reference tests

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Gowda S, Ranta-Maunus A. Duration of load effect on curved glulam beams. Part 1. Short term reference tests. Espoo: VTT Technical Research Centre of Finland, 1996. 69 p. (VTT Tiedotteita - Meddelanden - Research Notes, Vol. 1741).