- 摘 要
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朱玉華 呂西林 （同濟(jì)大學(xué)土木工程學(xué)院 上海 200092）馮德民 （日本藤田技術(shù)研究所）
[提要] 對基礎(chǔ)隔震模型振動臺試驗(yàn)中使用的鉛芯橡膠支座性能進(jìn)行了試驗(yàn)研究，在振動臺試驗(yàn)前后分別對所使用的橡膠支座做了性能試驗(yàn)，研究了單個(gè)支座性能試驗(yàn)結(jié)果與模型中支座的性能關(guān)系。對振動臺試驗(yàn)初始工況和模型經(jīng)歷數(shù)十個(gè)地震動輸入工況后橡膠支座的性能作了研究。分析的主要參數(shù)有鉛芯橡膠支座的屈服后水平剛度、屈服荷載及支座水平力-位移滯回曲線。分析結(jié)果可供采用鉛芯橡膠支座的基礎(chǔ)隔震房屋分析和設(shè)計(jì)時(shí)參考。
[關(guān)鍵詞] 鉛芯橡膠支座 支座性能試驗(yàn)振動臺試驗(yàn) 支座性能Bearing test is a key issue in the design of any isolated structures.Test studies are performed to investigate the properties of the lead rubber bearing utilized in a model shaking table test. Bearing tests are conducted before and after shaking table test separately to estimate the difference of the bearing characteristics under the two cases. The performance of separate bearing test is compared with that of model bearing test to examine the bearing behavior in separate bearing and in model test. The properties are also stuclied under both the first and the last test consequence.
Keywords: lead rubber bearing; bearing test; shaking table test; bearing properties
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