- 摘 要
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(1 廣州大學(xué)土木工程學(xué)院, 廣州 510006; 2 上海優(yōu)耐建筑工程咨詢有限公司, 上海 200092)
[摘要]支墩型連接是消能減震結(jié)構(gòu)常用的連接方式。針對消能子結(jié)構(gòu)設(shè)計方法不統(tǒng)一、不可靠及設(shè)計結(jié)果不合理的問題,對支墩型消能子結(jié)構(gòu)提出彈性設(shè)計方法。建立子結(jié)構(gòu)彈性設(shè)計驗算關(guān)系式,給出彈性設(shè)計驗算關(guān)系式中各參數(shù)的取值方法,推導(dǎo)阻尼器對支墩型子結(jié)構(gòu)產(chǎn)生的附加內(nèi)力。以某框架結(jié)構(gòu)為例,對彈性設(shè)計方法及新疆、云南設(shè)計方法設(shè)計的子結(jié)構(gòu)進行構(gòu)件極限承載力驗算。結(jié)果表明:滿足彈性設(shè)計驗算關(guān)系式的消能子結(jié)構(gòu)可以滿足《建筑消能減震技術(shù)規(guī)程》(JGJ 297—2013)第6-4-2條關(guān)于子結(jié)構(gòu)設(shè)計的有關(guān)要求;僅提高設(shè)計準則的中震設(shè)計方法和提取大震下構(gòu)件內(nèi)力進行承載力復(fù)核的方法沒有全面考慮《建筑消能減震技術(shù)規(guī)程》(JGJ 297—2013)第6-4-2條有關(guān)規(guī)定,設(shè)計結(jié)果不滿足要求。
[關(guān)鍵詞]支墩型消能子結(jié)構(gòu); 彈性設(shè)計方法; 彈性設(shè)計驗算關(guān)系式; 極限承載力驗算
中圖分類號:TU398-7文獻標識碼:A文章編號:1002-848X(2020)01-0105-07
Research of design method for energy-dissipated substructure with pier-type connection
Zhou Yun1, Gao Ran1, Chen Qingxiang2, Wang Xianpeng1
(1 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;2 Shanghai Younai Construction Engineering Consulting Co., Ltd., Shanghai 200092, China)
Abstract:Pier-type connection is a common connection method of energy-dissipated structures. Aiming at the problems that the design methods for energy-dissipated substructures are not unified and unreliable and the design results are unreasonable, elastic design method of pier-type energy-dissipated substructures was proposed. Elastic design check relationship formula of substructures was established, and the methods of determining each parameter in the relationship formula were given as well, and the additional internal force generated by the damper to the substructures with pier-type connection was deduced. A reinforced concrete frame was taken as an example to conduct ultimate bearing capacity check of substructures designed by the elastic design method and design methods of Xinjiang and Yunnan Provinces. The results indicate that the energy-dissipated substructure that satisfies the elastic design check relationship formula can meet the relevant requirements of the substructure design in Article 6-4-2 of Technical specification for seismic energy dissipation of buildings (JGJ 297—2013). The design method which only improves the design criteria under the fortification earthquake and the method which extracts the internal force of components under the rare earthquake to check the bearing capacity do not fully consider the relevant provisions of Article 6-4-2 of Technical specification for seismic energy dissipation of buildings (JGJ 297—2013), and the design results do not meet the requirements.
Keywords:energy-dissipated substructure with pier-type connection; elastic design method; elastic design check relationship formula; ultimate bearing capacity check
*長江學(xué)者和創(chuàng)新團隊發(fā)展計劃項目(IRT13057)。
作者簡介:周云,博士,教授,Email:zhydxs@163.com。