Translated Title

Study on the height effect of vibration characteristics about reinforced concrete buildings

Translated Abstract

The　vibration　characteristics　of　buildings　have　important　theoretical　value　for　seismic　design　of　structures,in　which　the　natural　period　and　damping　ratio　are　two　main　dynamic　parameters.A　vibration　test　was　performed　in　Fuzhou　area　of　129　reinforced　concrete　buildings　that　height　is　in　the　range　of　21　～99m　and　the　basic　feature　of　buildings　is　noted　to　research　the　relationship　between　the　natural　period,damping　ratio　with　the　height　of　buildings.The　result　shows　that　there　is　a　good　correlation　between　the　natural　period　and　height,and　the　natural　period　is　about　0.01863　times　of　the　height.Natural　period　in　longitudinal　direction　is　about　0.01456　times　of　the　height,and　in　transverse　direction　is　about　0.01846　times　of　the　height.As　the　height　of　the　building　increases,the　damping　ratio,damping　ratio　in　longitudinal　direction　and　in　transverse　direction　are　approximate　uniform　distribution,and　they　have　low　sensitivity　to　building＇＇s　height.Moreover　the　average　value　of　the　damping　ratio　is　4.44％　that　is　close　to　the　code　for　seismic　design　of　buildings　set　5％.The　conclusion　can　provide　scientific　basis　for　the　initial　design　of　the　high　rise　reinforced　concrete　buildings.

Translated Keyword

damping ratio
dynamic characteristics
free vibration
high rise buildings
natural period

Classification

TU375

Type

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Project No.

Access Number

WF:perioarticalsjdzgc201704010

Language

Chinese

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