半鋼性T型鋼高強度螺栓連接承載力計算
徐 凌 李曉龍
- 摘 要
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徐 凌 (鞍山科技大學(xué)土木與交通工程學(xué)院 114044)李曉龍 (東北大學(xué)資源與土木工程學(xué)院 沈陽 110006)
[提要] 節(jié)點的半剛性對鋼框架的內(nèi)力、位移和結(jié)構(gòu)的極限承載力的影響相當(dāng)大，在鋼框架設(shè)計中不能忽視。針對實際工程中采用的一種半剛性連接節(jié)點-T型鋼連接，進(jìn)行了極限承載力計算，通過比較節(jié)點各組成部分所能承受的荷載極限值，選取其中最小值作為節(jié)點的極限承載力。用此方法計算了2個不同的節(jié)點模型，與試驗結(jié)果進(jìn)行對比，算式可反應(yīng)T型鋼連接的實際工作性能。
[關(guān)鍵詞] 鋼框架 半剛性 T型鋼連接 承載力 高強螺栓Calculation of Loading-carrying Capacity of Semi-rigid High Strength Bolt T-stub ConnectionsXu Ling ( Civil and Transportation Engineering Institute, Anshan University of Science and Technology, Ansban 114044, China )Li Xiaolong ( School of Resources and Civil Engineering , Northeastern University, Shenyang 110006, China )
Abstract: The behaviors of semi-rigid connections would make great effects on the bebaviors of steel frames such as the internal forces, the horizontal deflection and the ultimate load-carrying capacity, which could not be neglected to design the steel frames. The ultimate load carrying capacities of the T-stub connections that are regarded as semi-rigjd ones applied in factual projects are calculated. Compared with the ultimate load-carrying capacity of its components, the minimum is useful. Two different specimens' models of the connection are calculated. The results are compared with the experimental data, and they approximately reflect actual rotational behavior of T-stub connection.
Keywords: steel frames; semi-rigid; T-stub connection; load-carrying capacity; high-strength bolt
