This paper presents the results of an experimental campaign investigating the seismic behaviour of full-size cross laminated timber (CLT) wall systems with sound-insulated shear-tension angle ...brackets. The main aim of the study was to investigate the influence of more and less flexible soundproofing bedding under the CLT wall. The paper shows a comparison of lateral load-bearing capacity, displacement capacity, ductility and stiffness obtained from racking tests on uninsulated specimens and specimens with various types of bedding insulation and levels of vertical load. Moreover, an analytical procedure to estimate the lateral load-displacement response of CLT walls with bedding insulation is proposed. This model is verified by direct comparison to the experimentally determined lateral load-displacement backbone curves. The results show that the elastomeric bedding does not have a significant effect on the bearing capacity of the wall system tested, but it reduces the stiffness and increases the displacement capacity. Due to the large decrease in stiffness, the insulation causes an overall reduction in ductility. The analytical estimation proposed was able to capture the reduction in lateral stiffness and adequately predict the load-bearing capacity.
•Monotonic and cyclic shear tests of walls, analytical model.•The insulation does not significantly influence the lateral load-bearing capacity.•The insulation reduces the lateral stiffness of the wall and overall ductility.•High vertical load can cause irreversible deformation of the CLT slab and insulation.•The analytical model adequately predicted the lateral load displacement response.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
•Analysis and interpretation of the experimental results of campaign carried out on wall system within SOFIE project.•Analysis of CLT-wall systems by means of component-level models.•Comparison of ...global and local response using numerical and experimental results.•Evaluation of out-of-plane displacement effect of connections on the response of CLT-wall systems.
Cross Laminated Timber (CLT) is an extensively used technology to build medium- and high-rise buildings, especially thanks to the rapidity of execution, environmental sustainability, and good mechanical performances. Since this material is presently employed also in seismic-prone areas, the assessment of numerical modelling strategies to reproduce the cyclic behavior of CLT-wall systems has become a relevant research topic within the structural engineering field. Two different modelling approaches can be adopted to model the seismic behavior of such systems: the phenomenological approach and the component-level one. After a comparative presentation of the two approaches, the paper focuses on the different strategies used to create reliable component-level models able to reproduce the CLT panel-connection system behavior both at the global and local level (i.e., in terms of force-displacement curve and cumulative energy, as well as uplift and slip displacements). The experimental tests carried out at CNR-IVALSA during the SOFIE project – after a preliminary phase of interpretation of the experimental dataset, necessary to identify the peculiarities of the test procedures – are used as a comparative basis to assess the quality of the numerical results. The obtained outcomes demonstrate that the component-level approach could be a feasible and reliable method to reproduce the CLT panel connection systems cyclic behavior, also at a local level, provided that the behavior of each individual component is properly calibrated.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Load filters
No result was selected!
Please select the results that you wish to export.
The search was successfully saved.
Editing
The search could not be saved.
Saved searches can be viewed in the list My searches.
The changes made to the saved search were saved successfully.
Save search
Shelf entry
No result was selected!
Adding material to shelf was successful.
Adding material to shelf was partly successful.
Adding material to shelf failed completely.
It was not necessary to add the material to the shelf.
Please select the results that you want to put on shelf!
On shelf the following records have been successfully added:
On shelf the following records have been successfully added:
PDF
