000019919 001__ 19919
000019919 005__ 20170118182346.0
000019919 04107 $$aeng
000019919 046__ $$k2017-01-09
000019919 100__ $$aHube, Matias
000019919 24500 $$aExperimental Behavior of Elastomeric Bearings and Seismic Bars of Simply Supported Chilean Bridges

000019919 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019919 260__ $$b
000019919 506__ $$arestricted
000019919 520__ $$2eng$$aTypical highway bridges in Chile consist on two span simply supported structures with prestressed concrete girders connected by a continuous slab. The girders are supported by elastomeric bearings which are not bolted and allow sliding of the superstructure. In some bridges, the lateral displacement of the superstructure is also restricted by lateral reinforced concrete or steel stoppers. According to the Chilean seismic design code, the bridges are designed with seismic bars, which are vertical steel rods that connect the superstructure with the bearing table and are intended to prevent the uplift of the superstructure. However, when bridges are subjected to large lateral displacements the seismic bars provide lateral restrain. The objective of this paper is to summarize the experimental campaigns of elastomeric bearings and seismic bars that were conducted at Pontificia Universidad Católica de Chile to characterize the seismic behavior of Chilean bridges. For the elastomeric bearings campaign, six bearings were tested under monotonic and cyclic loads. For the seismic bars campaign, five specimens were tested to quantify the lateral restrain that the seismic bars provide to the bridge superstructure. Two specimens represented the seismic bars of bridges with reinforced concrete diaphragm and three specimens represented those of bridges without diaphragm. From the conducted tests, the force deformation relationship of elastomeric bearings and seismic bars were obtained. Additionally, the behavior and failure mode of these elements were characterized.

000019919 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019919 653__ $$abridges, elastomeric bearings, sliding, reinforced concrete, experimental analysis

000019919 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019919 720__ $$aHube, Matias$$iRubilar, Felipe$$iMartinez, Antonio
000019919 8560_ $$ffischerc@itam.cas.cz
000019919 8564_ $$s908464$$uhttps://invenio.itam.cas.cz/record/19919/files/4682.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4682.
000019919 962__ $$r16048
000019919 980__ $$aPAPER