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Dynamic analysis of hollow core concrete floors
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2018. , p. 34
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-224778OAI: oai:DiVA.org:kth-224778DiVA, id: diva2:1192838
Presentation
2018-04-20, M108, Brinellvägen 23, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20180326

Available from: 2018-03-26 Created: 2018-03-23 Last updated: 2018-03-27Bibliographically approved
List of papers
1. Experimental and Numerical Dynamic Analyses of Hollow Core Concrete Floors
Open this publication in new window or tab >>Experimental and Numerical Dynamic Analyses of Hollow Core Concrete Floors
2017 (English)In: Structures, ISSN 2352-0124, Vol. 12, p. 286-297Article in journal (Refereed) Published
Abstract [en]

Due to their low self-weight and high strength, precast and prestressed hollow core concrete slabs are widely used in construction. However, the combination of low self-weight and long span implies that the slabs are sensitive to vibrations induced by human activities. In this work, experimental tests and numerical analyses are performed in order to understand the dynamic behaviour of hollow core concrete floors. For the experiments, a test floor of dimension 10 m × 7.2 m and consisting of 6 hollow core elements was built. Very good agreements between experimental and numerical results have been obtained. Comprehensive numerical parametric analyses have been performed in order to determine the optimal value of the material parameters.

Place, publisher, year, edition, pages
Elsevier, 2017
Keywords
Dynamic analyses, Experimental tests, Finite element model, Hollow core concrete slabs, Model calibration
National Category
Applied Mechanics
Identifiers
urn:nbn:se:kth:diva-218309 (URN)10.1016/j.istruc.2017.10.001 (DOI)000418536400023 ()2-s2.0-85033669374 (Scopus ID)
Note

QC 20171127

Available from: 2017-11-27 Created: 2017-11-27 Last updated: 2018-03-23Bibliographically approved
2. Finite-shell-element models for the dynamic analysis of hollow-core concrete floor
Open this publication in new window or tab >>Finite-shell-element models for the dynamic analysis of hollow-core concrete floor
2019 (English)In: Magazine of Concrete Research, ISSN 0024-9831, E-ISSN 1751-763X, Vol. 71, no 10, p. 519-532Article in journal (Refereed) Published
Abstract [en]

Precast and prestressed hollow-core concrete slabs are widely used in construction. The combination of low self-weight and high strength of such slabs makes it possible to design floors with long spans. However, this also implies that the slabs are sensitive to human-induced vibrations. The purpose of this work was to develop a methodology to implement finite-shell-element models that can be used to analyse the dynamic behaviour of hollow-core concrete slabs. Three different shell models with different material properties (orthotropic material, isotropic material with strips and isotropic material) were designed and tested. The models were calibrated and assessed using experimental results obtained on a test structure of dimensions 10 m × 7·2 m consisting of six hollow-core elements.

Keywords
finite element methods floors prestressed concrete
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-224776 (URN)10.1680/jmacr.17.00480 (DOI)000464018900002 ()2-s2.0-85064200909 (Scopus ID)
Note

QC 20180326

Available from: 2018-03-23 Created: 2018-03-23 Last updated: 2019-06-11Bibliographically approved
3. Experimental and numerical analyses of single pedestrian walking on a hollow core concrete floor
Open this publication in new window or tab >>Experimental and numerical analyses of single pedestrian walking on a hollow core concrete floor
(English)In: Article in journal (Refereed) Submitted
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-224777 (URN)
Note

QCR 20180326

Available from: 2018-03-23 Created: 2018-03-23 Last updated: 2018-03-26Bibliographically approved

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