- 摘 要
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（長安大學(xué)建筑工程學(xué)院， 西安 710000）
［摘要］以受控?fù)u擺橋墩為研究對象，研究其滯回性能和穩(wěn)定性。通過理論推導(dǎo)得到水平力-轉(zhuǎn)角曲線及抗側(cè)移剛度-轉(zhuǎn)角曲線，并提出簡化的滯回模型，采用案例詳細(xì)分析阻尼器各參數(shù)對受控?fù)u擺橋墩的滯回性能及抗側(cè)移剛度的影響。結(jié)果表明：阻尼器的屈服強(qiáng)度對搖擺橋墩耗能能力有較大的影響，阻尼器其他參數(shù)不影響結(jié)構(gòu)的耗能能力且對滯回性能影響較??；在受控?fù)u擺橋墩轉(zhuǎn)動過程中，橋墩自身的抗側(cè)移剛度數(shù)值變化很小。
［關(guān)鍵詞］搖擺橋墩； 阻尼器； 抗側(cè)移剛度； 滯回性能
中圖分類號： TU352 文獻(xiàn)標(biāo)識碼： A 文章編號： 1002-848X(2015)S2-0519-04
Study on the hysteretic mechanics and stability of rocking bridge piers
Li Bo， Zhang Xiaobo
(School of Architecture Engineering, Chang′an University, Xi′an 710000， China)
Abstact: Based on the rocking bridge piers as the research object, the hysteretic mechanics and stability were researched. Kinds of cases were taken into account to investigate the horizontal force-rotation curve and lateral stiffness-rotation curve. Then, simplified hysteresis model was put forward. The study results show that yield strength of the damper affect energy dissipation of rocking bridge piers and other components of the damper has little effect. The lateral stiffness-rotation changes little in the process of rotation.
Keywords: rocking-bridge pier; damper; lateral stiffness; hysteretic mechanics
作者簡介： 李波，博士，副教授，一級注冊結(jié)構(gòu)工程師，Email：liboxuat@163.com。
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