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Experimental and Numerical Investigation of a Novel Demountable Timber-Concrete Composite Floor

Eslami, Hooman ; Jayasinghe, Laddu Bhagya ; Waldmann, Daniele (2023)
Experimental and Numerical Investigation of a Novel Demountable Timber-Concrete Composite Floor.
In: Buildings, 2023, 13 (7)
doi: 10.26083/tuprints-00024405
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Experimental and Numerical Investigation of a Novel Demountable Timber-Concrete Composite Floor
Language: English
Date: 11 August 2023
Place of Publication: Darmstadt
Year of primary publication: 2023
Publisher: MDPI
Journal or Publication Title: Buildings
Volume of the journal: 13
Issue Number: 7
Collation: 19 Seiten
DOI: 10.26083/tuprints-00024405
Corresponding Links:
Origin: Secondary publication DeepGreen

In recent years, there has been an increasing interest in timber–concrete composite (TCC) floors as a sustainable structural solution. Until now, only a few studies have investigated the demounting of TCC floors, which is essential to increase sustainability and improve the end-of-life environmental benefits of a floor system. This study investigates an innovative and straightforward demountable TCC slab that has notched and bolted connections. Six downscaled slabs are tested under four-point bending. The results show that the slab system has high composite action with an efficiency of 0.73. A three-dimensional finite element model is developed and calibrated with the experimental result. The model is used to study the influence of several parameters, such as the shape and dimensions of the notch as well as the bolt location on the load-bearing capacity and the load-deflection behavior of the slab. The results show that the failure tends to be more ductile when a birdsmouth-shaped notch is used, and the bolt is placed within the notch. Moreover, the load-bearing capacity of the shear connection increases by increasing the distance of the notch to the end of the slab and using a triangular notch.

Uncontrolled Keywords: timber-concrete composite floors, demountable shear connection, notched shear connection, design for deconstruction, demountable structures
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-244058
Additional Information:

This article belongs to the Section Building Materials, and Repair & Renovation

Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 624 Ingenieurbau und Umwelttechnik
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute of Solid Construction
Date Deposited: 11 Aug 2023 12:05
Last Modified: 19 Oct 2023 13:37
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/24405
PPN: 512472262
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