Translated Title

Seismic isolation performance of a single tower structure on a large chassis with different indentation ratios

Translated Abstract

In　studies　on　seismic　isolation　structure　for　a　single　tower　on　a　large　chassis,few　attentions　were　paid　to　the　influence　of　the　indentation　ratio　on　the　seismic　isolation　effects.A　single　tower　on　a　large　chassis　with　the　tower　indentation　ratio　of　1　∶　3　was　taken　as　a　model　with　3　structural　forms　including　base　seismic　isolation,interlayer　seismic　isolation　and　aseismic　one.One-way　shaking　table　test　was　then　conducted　on　these　3　models.3　models　were　numerically　simulated,their　results　were　verified　by　comparing　them　with　the　results　of　shaking　table　tests.Numerical　analyses　were　performed　on　another　four　models　with　the　tower　indentation　ratio　of　1　∶　1.5,1　∶　2,1　∶　2.5　and　1　∶　3,respectively.The　results　showed　that　compared　with　the　aseismic　structure　model,the　acceleration　amplification　coefficient　of　each　floor　of　the　base　seismic　isolation　model　slightly　increases　with　increase　in　the　floor　number,but　the　whole　structure　response　is　close　to　translational　motion;for　the　interlayer　seismic　isolation　model,its　acceleration　response　is　close　to　translational　motion,the　acceleration　amplification　coefficient　of　its　chassis　is　larger　than　that　of　the　aseismic　model,and　it　increases　with　increase　in　the　floor　number;the　damping　effect　of　the　interlayer　displacement　of　the　base　seismic　isolation　model　is　remarkable,while　the　poor　damping　effect　of　the　interlayer　seismic　isolation　model＇＇s　chassis　is　observed;the　chassis　responses　are　quite　different　for　the　base　seismic　isolation　model　and　the　interlayer　seismic　isolation　one;the　acceleration　amplification　coefficients　of　the　three　structural　models　increase　with　increase　in　the　indentation　ratio,the　amplitude　increase　values　of　the　base　seismic　isolation　model　and　the　interlayer　seismic　isolation　one　are　relatively　small,and　that　of　the　aseismic　model　is　larger;the　results　can　provide　a　reference　for　seismic　isolation　scheme　selection　and　seismic　isolation　design　of　a　single　tower　on　a　large　chassis.

Translated Keyword

body indentation
interlayer seismic isolation system
shaking table test
tower on a large chassis

Classification

TU352.1

Type

Project Name

Project No.

Access Number

WF:perioarticalzdycj201723018

Language

Chinese

Corresponding s email

Author Info