000019123 001__ 19123
000019123 005__ 20170118182300.0
000019123 04107 $$aeng
000019123 046__ $$k2017-01-09
000019123 100__ $$aZhang, Xiaoyue
000019123 24500 $$aNovel High-Capacity Seismic Hold-Downs for Timber-Based Hybrid Structures

000019123 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019123 260__ $$b
000019123 506__ $$arestricted
000019123 520__ $$2eng$$aThe structural use of wood in North America so far was mostly related to low-rise and mid-rise residential light-frame construction. Lately, mass-timber engineered wood products such as laminated-veneer-lumber (LVL) and cross-laminated timber (CLT), enable the use of wood in tall and large wood and wood-based hybrid buildings. Compared to other materials, one of the main advantages of using wood as structural material in tall buildings is the reduction in weight and the resulting reduction in foundation costs. Under high seismic loads, a lower mass, however, will also lead to less inherent resistance to overturning forces. The overturning resistance of tall mass-timber structures needs to be addressed, either by reducing the uplift forces or by improving the existing hold-downs. This paper summarizes experimental studies on a practical high-capacity hold-down solution for tall timber structures. The connection assembly is comprised of the HolzStahl-Komposit (HSK)™ system: perforated steel plates that are adhesively bonded to the wood. In the conventional HSK application, the perforated steel plates are welded to a section-reduced steel side plates that provide the required ductility. In the modified design investigated herein, duct tape was used to cover some rows of holes in the perforated steel plate. This arrangement allows the perforated steel plates to yield inside the wood, while at the same time preventing bucking of the hold-down. In the first step of the research presented herein, small-scale static and cyclic tests on perforated steel plates embedded in CLT panels with different numbers of rows covered with duct tape, were conducted. In the second step, fullscale tests on in CLT panels were conducted. Based on the results, it can be concluded that the modified HSK hold-down assembly provided high initial stiffness and strength and the required ductility for seismic applications, and can therefore be considered a viable alternative for high-rise wood-based structures in moderate and high seismic zones.

000019123 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019123 653__ $$aTall wood buildings, wood-hybrid buildings, high-capacity hold-downs, failure mechanism

000019123 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019123 720__ $$aZhang, Xiaoyue$$iPopovski, Marjan$$iTannert, Thomas
000019123 8560_ $$ffischerc@itam.cas.cz
000019123 8564_ $$s905587$$uhttps://invenio.itam.cas.cz/record/19123/files/2907.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2907.
000019123 962__ $$r16048
000019123 980__ $$aPAPER