Translated Title

Shaking table experiment for high position seismically isolated single-layer latticed cylindrical shell under multi-support excitations

Translated Abstract

In　order　to　investigate　the　changes　of　earthquake　responses　in　the　single-layer　cylindrical　latticed　shell　following　using　the　HDR(high　damping　rubber)bearings,and　the　influences　from　earthquake　wave-passage　effect,a　series　of　shaking　table　experiments　of　a　single-layer　cylindrical　latticed　shell　shrunk　model　were　conducted.The　HDR　bearings　were　installed　at　the　top　of　the　supporting　columns.The　visual　wave　velocity　of　earthquake　records　inputting　to　the　structural　model　included　infinite,1　000　m/s,500　m/s　and　250　m/s.The　dynamic　responses　such　as　acceleration,displacement　and　strain　of　members　were　examined.The　results　show　that　high-position　seismic　isolation　with　HDR　bearings　could　prolong　the　vibration　period　of　latticed　shell　efficiently　and　reduce　1　to　3　degrees　earthquake　response　of　structure　upon　isolation　layer.The　latticed　shell　tends　to　produce　whole　motion　following　the　application　of　the　rubber　bearings.The　structural　responses　tend　to　be　enlarged　along　the　propagative　direction　of　earthquake　and　the　shear　deformations　of　rubber　bearings　increase　observably　at　the　earthquake　wave　outlet　under　non-consistent　excitation.Wave　passage　effect　should　be　taken　into　account　as　consistent　excitation　may　cause　unsafe　estimation.

Translated Keyword

HDR(high damping rubber)bearing
high-position seismic isolation
multi-support excitations
shaking table experiment
single-layer latticed cylindrical shell

Classification

TU352.12

Type

Project Name

Project No.

Access Number

WF:perioarticalsjdzgc201703004

Language

Chinese

Corresponding s email

Author Info