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Experimental and numerical analyses of single pedestrian walking on a hollow core concrete floor
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.ORCID iD: 0000-0003-2104-382X
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Structural Engineering and Bridges.
2019 (English)In: International Journal of Civil Engineering, ISSN 1735-0522, Vol. 17, no 7A, p. 1201-1209Article in journal (Refereed) Published
Abstract [en]

The purpose of this paper is to study experimentally and numerically the dynamic response of a hollow core concrete slab due to a single pedestrian. To achieve this aim, a test structure consisting of six hollow core concrete elements of dimension 10mx1.2m has been built. A finite element model of the structure based on orthotropic shell elements has been implemented. The accuracy of the finite element model has been assessed by reproducing numerically hammer-impact tests. For that, the experimental impact load has been imported to the finite element model. Very good agreements between experimental and numerical results have been obtained. Then, three different single pedestrian walking paths have been tested experimentally. Each of these paths has been reproduced numerically using four numerical load models taken from the literature. The results show that the four pedestrian loads give rather different numerical results regarding the amplitudes of the acceleration for each mode. In addition, a small change in the numerical parameters of the slab can give large differences in the numerical results. This shows that an accurate numerical modelling of a single pedestrian loading is not an easy task. The results show also that during transversal and diagonal walking paths, the vibrations due to the torsional mode of the slab can be higher than the ones due to the lowest bending mode.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 17, no 7A, p. 1201-1209
Keywords [en]
Hollow core concrete slab, Experimental tests, Finite element model, Hammer-impact load, Single pedestrian walking
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-250255DOI: 10.1007/s40999-018-0355-3ISI: 000470334300018Scopus ID: 2-s2.0-85066794272OAI: oai:DiVA.org:kth-250255DiVA, id: diva2:1307381
Note

QC 20190522

Available from: 2019-04-26 Created: 2019-04-26 Last updated: 2019-06-26Bibliographically approved

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Liu, Fangzhou

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