000019115 001__ 19115
000019115 005__ 20170118182300.0
000019115 04107 $$aeng
000019115 046__ $$k2017-01-09
000019115 100__ $$aBita, Hercend Mpidi
000019115 24500 $$aReliability Analysis and Disproportionate Collapse for Multi-Storey Cross-Laminated Timber Building

000019115 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019115 260__ $$b
000019115 506__ $$arestricted
000019115 520__ $$2eng$$aThis paper focuses on developing finite element models and subsequent sensitivity and reliability analyses to evaluate the probability of disproportionate collapse of a twelve-storey case study Cross-Laminated Timber (CLT) building, following extreme loading events such as earthquakes. As an initial damage, the methodology mimics event-independent scenarios that include a sudden removal of a vertical loadbearing element. This investigation emphasises on the rotational stiffness (k) of the joints by considering nonlinear dynamic analyses of the structure at global, component and connection levels. The rotational stiffness-demand required to prevent disproportionate collapse is checked against the supply at all levels of structural idealisation. A sensitivity analysis at the sub-frame level shows that an improved structural detailing, to carry tie forces between structural members, as well as adequate thickness of structural elements, are important to prevent disproportionate collapse. The reliability analysis of the optimised structural model proves that the required k-value, to develop resistance mechanisms, is too large to be practically achieved by means of common CLT joint detailing, which is provided by angle brackets and screws. As a result, connection detailing and size of members of the case study building need to be reevaluated in order to avoid disproportionate collapse in the twelve-storey CLT building.

000019115 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019115 653__ $$aProgressive collapse; sudden removal; redundancy; Robustness; structural integrity

000019115 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019115 720__ $$aBita, Hercend Mpidi$$iCurrie, Neil$$iTannert, Thomas
000019115 8560_ $$ffischerc@itam.cas.cz
000019115 8564_ $$s590507$$uhttps://invenio.itam.cas.cz/record/19115/files/2892.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2892.
000019115 962__ $$r16048
000019115 980__ $$aPAPER