- 摘 要
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侯俊鋒1，蘇三慶1，王社良2
（1 西安科技大學建筑與土木工程學院，西安710054；2 西安建筑科技大學土木工程學院，西安710055）[摘要] 對某磚石古塔的現狀進行了分析，提出了相應的抗震加固措施。針對該古塔地震作用下可能的破壞形式，采用了一種單拉式SMA阻尼器，并對阻尼器的理論模型和滯回曲線進行了分析和模擬，探討了其安放位置。通過地震反應時程分析，研究了兩種加固形式在不同地震激勵下的反應。結果表明，對砌體進行補強并采用SIvIA阻尼器可以有效減輕古塔的地震響應。
[關鍵詞] 古塔；形狀記憶合金；阻尼器：時程分析Research on seismic strengthening of an ancient tower
Hou Junfeng1, Su Sanqing1, Wang Sheliang2
(1 College of Architecture and Civil Engineering，Xi'an University of Science and Technology，Xi'an 710054, China;
2 College of Civil Engineering，Xi'an University of Architecture and Technology；Xi'an 710055, China)
Abstract: The existing state of an ancient tower is introduced and the strengthening metbod is proposed. For the special destroying modal of this tower under earthquake, a tensioned shape memory alloy(SMA) damper is presented. Its hysteretic curve and riding position are studied. A comparison is made for the structural response of two strengthening methods under different earthquake excitation through time history analysis. It is effective to alleviate the vibration response through installing the SMA damper.
Keywords: ancient tower; shape memory alloy; damper; time history analysis
