Shape imperfections of reinforced concrete shell roofs

None, None; None, None; None, None; None, None

Shape imperfections of reinforced concrete shell roofs

Journal Article (2016)

Author(s)

Bart Elferink (TU Delft - Civil Engineering & Geosciences)

Peter Eigenraam (TU Delft - Structural Design & Mechanics)

Pierre Hoogenboom (TU Delft - Civil Engineering & Geosciences)

Jan Rots (TU Delft - Structural Design & Mechanics, TU Delft - Civil Engineering & Geosciences)

Research Group

Applied Mechanics

Laser scanner Extreme value distribution Partial factors Shell structures Geometrical imperfections Variance spectrum Characteristic imperfection

URL related publication

http://heronjournal.nl/61-3/4.html

To reference this document use

https://resolver.tudelft.nl/uuid:1455595f-7763-4df6-aa47-f729be66d08a

More Info

expand_more

Publication Year

2016

Language

English

Research Group

Applied Mechanics

Issue number

3

Volume number

61

Article number

4

Pages (from-to)

177-192

Downloads counter

208

Abstract

The precise geometries of three reinforced concrete shell roofs have been measured with a laser scanner. The resulting point cloud has been modelled by NURBS surfaces. Two methods have been developed for determining the shape imperfections with lengths between 0.5 and 5.5 m. The largest observed imperfection amplitude is 80 mm with length of 5 m. The imperfections are represented by a variance spectrum and an extreme value distribution. From this are derived a formula for the characteristic imperfection amplitude and the partial safety factor.