- 摘 要
-
(上海建筑設(shè)計研究院有限公司, 上海 200041)
摘要: 隨著消能減震技術(shù)發(fā)展日趨成熟,基于結(jié)構(gòu)性能需求的各種消能器產(chǎn)品應(yīng)運而生. 目前建筑市場應(yīng)用較廣泛的消能器主要包括位移型和速度型兩種. 根據(jù)項目應(yīng)用實際情況,大部分減震項目使用的消能器類型單一,未能結(jié)合不同結(jié)構(gòu)體系的特點、需求及限制進行消能減震機理及效率研究,且經(jīng)濟性一般. 在設(shè)計日趨精細化形勢下,提出基于結(jié)構(gòu)性能需求的組合消能減震技術(shù),即針對不同結(jié)構(gòu)體系、不同樓層等根據(jù)性能需求“量身定制”相應(yīng)類型的消能器,以最大程度發(fā)揮不同類型消能器減震效率及共同作用的一種組合減震技術(shù). 兩個不同工程實例的研究結(jié)果表明:相比傳統(tǒng)單一消能器方案,組合消能減震技術(shù)可根據(jù)結(jié)構(gòu)特點及性能需求,為不同階段及設(shè)計水準下的結(jié)構(gòu)提供附加剛度及附加阻尼,“量身定制”消能器減震機理明確且減震效率、經(jīng)濟性均較好.
關(guān)鍵詞: 消能減震; 組合減震技術(shù); 屈曲約束支撐; 摩擦消能器; 黏滯阻尼器
中圖分類號:TU352. 1 文獻標志碼:A 文章編號:1002-848X(2023)01-0071-07
DOI:10. 19701 / j. jzjg. SHY2329
Application and research of combined seismic energy dissipation technology in engineering project
ZHANG Jian, ZHOU Zhengjiu, ZHOU Jiaqi, LIU Gui
(Shanghai Institute of Architecture Design & Research Co. , Ltd. , Shanghai 200041, China)
Abstract:With the development of seismic energy dissipation technology, a variety of damper products based on theperformance requirements of the structure come into being. Energy dissipation shock absorbers widely used in theconstruction market mainly include displacement type and velocity type at present. According to the practical application,most of the dampers used in the projects are of single type, which can not be combined with the characteristics,requirements and limitations of different structural systems to further study the mechanism and efficiency of seismic energydissipation, and the economy is general. Under the situation of more and more refined design, a combined seismic energydissipation technology based on structural performance requirements were proposed, the corresponding types of energydissipation devices were ‘ tailor-made’ to maximize the efficiency of different types of energy dissipation devices and acombination of shock absorption technology according to the performance requirements for different structural systems,different floors etc. The research results of two different engineering examples show that compared with the traditional singledamper scheme, the combined seismic energy dissipation technology can provide additional stiffness and additional dampingratio for the structure at different stages and design levels according to the structural characteristics and performancerequirements, the damping mechanism of the‘ tailor-made’ damper is clear and the damping efficiency and economy aregood.
Keywords:seismic energy dissipation; combined shock absorption technology; buckling restrained brace; friction dampers;viscous damper
∗國家自然科學基金(52078287),國家自然科學基金(52108461).
作者簡介:張堅,學士,教授級高級工程師,主要從事工程抗震技術(shù)及復雜建筑結(jié)構(gòu)研究,Email:zhangjian@ isaarchitecture. com.
[引用本文] 張堅,周正久,周佳祺,等. 組合消能減震技術(shù)在工程項目中的應(yīng)用與研究[ J]. 建筑結(jié)構(gòu),2023,53(1):71-77. ZHANG Jian, ZHOU Zhengjiu, ZHOU Jiaqi, et al. Application and research of combined seismic energydissipation technology in engineering project[J]. Building Structure,2023,53(1):71-77.
