Numerical analysis of the racking behaviour of multi-storey timber-framed buildings considering load-bearing function of double-skin façade elements

Miroslav Premrov (Avtor), Erika Kozem Šilih (Avtor)

Povzetek

The paper presents an innovative approach in the modelling of multi-storey timber-framed buildings, where double-skin façade elements (DSF) are additionally considered as load-bearing wall elements against a horizontal load impact. The mathematical model with a fictive diagonal element developed for timber-framed wall elements with classical oriented strand boards (OSB) or fibre–plaster sheathing boards (FPB) is upgraded for DSF elements. The diameter of the fictive diagonal is determined with either experimental results or numerically obtained results using the time-consuming FEM model with elastic spring elements, which simulates the bonding line between the timber frame and both glazing panes. In the second part of the study, the numerical analysis of a specially selected three-storey timber-framed building was performed using the developed mathematical model with fictive diagonal elements. Two alternative calculations were performed with the DSF elements as non-resisting and racking-resisting wall elements. It was demonstrated on the selected case that the racking resistance (R) of a building can essentially increase up to 35% if DSF elements are considered as resisting wall elements. As a secondary goal of the study, it is also important to point out that by using DSF elements as racking-resisting elements, the distortion in the first floor essentially decreased. It is demonstrated on the selected numerical example that this torsional influence decreased notably (by almost 18%) when the load-bearing DSF elements were used for seismic excitation in the X direction. Therefore, such an approach can open new perspectives in designing multi-storey timber-framed buildings with a more attractive and dynamic floor plan and structure.

Ključne besede

trajnostna gradnja;les;večnadstropne konstrukcije;numerična analiza;dvoslojne fasade;prevleke;odpornost proti zbijanju;sustainability;timber;structures;multi-storey;numerical analysis;DSF;racking resistance;

Podatki

Jezik:	Angleški jezik
Leto izida:	2023
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UM FGPA - Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo
Založnik:	MDPI
UDK:	694.1:519.6
COBISS:	148574467
ISSN:	2071-1050
Št. ogledov:	66
Št. prenosov:	11
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	trajnostna gradnja;les;večnadstropne konstrukcije;numerična analiza;dvoslojne fasade;prevleke;odpornost proti zbijanju;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-18
Letnik:	ǂVol. ǂ15
Zvezek:	ǂiss. ǂ8, [article no.] 6379
Čas izdaje:	April 2023
DOI:	10.3390/su15086379
ID:	23179405