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(1 蘇州科技學(xué)院土木工程系，蘇州 215011； 2 中國(guó)建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院，北京 100044)

［摘要］在試驗(yàn)及有限元分析的基礎(chǔ)上，分析了樹狀柱剛性框架的梁柱連接抗震設(shè)計(jì)方法，特別是其中的鋼梁抗震拼接問題，對(duì)設(shè)計(jì)規(guī)范和人們認(rèn)識(shí)上的幾個(gè)根本性觀念進(jìn)行了糾正或強(qiáng)調(diào)。按照現(xiàn)行規(guī)范中的抗震要求，樹狀柱剛性框架中的鋼梁拼接，材料和人力花費(fèi)較多，而且不利于抗震。在設(shè)計(jì)承載能力階段，鋼梁的拼接可以按照拼接節(jié)點(diǎn)處的實(shí)際受力進(jìn)行設(shè)計(jì)。在極限承載能力階段，鋼梁的拼接只要達(dá)到梁的全截面塑性承載能力即可。

［關(guān)鍵詞］樹狀柱框架；鋼梁拼接；設(shè)計(jì)方法；高強(qiáng)螺栓

Seismic design method modification of steel beam splice joint of column-tree moment-resisting frame

Li Qicai¹, Gu Qiang¹, Shen Lin², Cai Yiyan²(1 Jiangsu Key Laboratory of Structural Engineering, University of Science & Technology of Suzhou, Suzhou 215011, China; 2 China Institute of Building Standard Design and Research, Beijing 100044, China)

Abstract:Based on experimental test and finite element analysis, design methods of beam-to-column connection of column-tree moment-resisting frame under seismic loads are examined in details, especially the steel beam splicing joint. Some fundamental concepts in design codes and people’s cognition are rectified or emphasized. It is believed that beam splicing in column-tree moment-resisting frame designed according to the current design code requires more material and man’s work, but do not benefit to structural aseimic property. Design suggestions on beam splicing under seismic load are given as: under the elastic stage, it can be designed according to actual internal force state at splice center, and under the ultimate bearing stage, it can be designed not less than the full plastic bearing capacity of beam section, etc..

Keywords:column-tree moment-resisting frame; steel beam splicing; design methods; high-strength bolts

國(guó)家自然科學(xué)基金資助項(xiàng)目(59978041)。

作者簡(jiǎn)介：李啟才，Email:ustsgig@163.com。

參考文獻(xiàn)

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