000009764 001__ 9764
000009764 005__ 20141205153152.0
000009764 04107 $$aeng
000009764 046__ $$k2008-10-12
000009764 100__ $$aColato, Gian Paolo
000009764 24500 $$aStonecutters Cable-Stayed Bridge: Full-Scale Testing of Dynamic Control Devices

000009764 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009764 260__ $$b
000009764 506__ $$arestricted
000009764 520__ $$2eng$$aThe Stonecutters cable-stayed bridge, now under construction in Hong Kong, is a crossing 1600 m long characterized by an 1018 m main span that sets it amongst the longest bridges of this type. It is designed to withstand extreme wind storms and earthquakes. Thus, the designer’s foresight contemplated using a non-conventional restraint system to connect the deck to the pylons in both the longitudinal and transverse directions. At each pylon, a group of four 8000 kN capacity (800 mm stroke) Shock Transmission Units (STUs) are installed along the longitudinal direction, while two preloaded spherical bearings connect transversally the steel girder to the pylon - with a reaction that depends upon the dynamics of the imposed load. At the onset of any dynamic action, the longitudinally acting STUs are designed to temporary link the deck to the pylons providing for a very stiff connection. In order to avoid torque effects in the bridge structures, each group of units has a common hydraulic circuit that makes them react simultaneously during the dynamic event. Furthermore, said hydraulic circuit is designed to reduce to a minimum the reaction associated with slow movements induced by deck thermal expansions and prevent unexpected overloads. The special bearings reacting in the transverse direction are hydraulically preloaded and react as STUs only at the occurrence of a dynamically imposed load. This paper presents the technical description of the longitudinal STUs with particular emphasis on the full-scale testing program performed in accordance to contractual specifications.

000009764 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009764 653__ $$acable-stayed bridges, shock transmission units, tests

000009764 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009764 720__ $$aColato, Gian Paolo$$iChiarotto, Renato$$iFetti, M.$$iInfanti, Samuele$$iCastellano, M.G.
000009764 8560_ $$ffischerc@itam.cas.cz
000009764 8564_ $$s5821355$$uhttps://invenio.itam.cas.cz/record/9764/files/11-0018.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 11-0018.
000009764 962__ $$r9324
000009764 980__ $$aPAPER