- 摘 要
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(昆明理工大學(xué)建筑工程學(xué)院, 昆明 650500)
[摘要]通過低周反復(fù)試驗(yàn)研究了采用全螺栓連接、柱壁加設(shè)柱壁套管式節(jié)點(diǎn)的抗震性能。試驗(yàn)以方鋼管柱、H型鋼梁制作足尺節(jié)點(diǎn)試件,研究在反復(fù)荷載作用下節(jié)點(diǎn)的工作性能及破壞情況,結(jié)合試驗(yàn)測量數(shù)據(jù),分析柱壁套管與方鋼管柱的協(xié)同工作性能和剪力傳遞機(jī)制。試驗(yàn)結(jié)果表明:柱壁套管式節(jié)點(diǎn)剪力傳遞路徑及機(jī)理明確,柱壁套管能夠很好地提高節(jié)點(diǎn)區(qū)的抗彎承載力,并能與方鋼管柱共同受力、協(xié)調(diào)變形,節(jié)點(diǎn)具有良好的抗震性能??偨Y(jié)了影響柱壁套管式節(jié)點(diǎn)抗震性能的主要因素及施工中應(yīng)該注意的問題,為其工程推廣應(yīng)用提供指導(dǎo)。
[關(guān)鍵詞]柱壁套管式節(jié)點(diǎn); 低周反復(fù)試驗(yàn); 抗震性能; 協(xié)同工作
中圖分類號:TU392.1 文獻(xiàn)標(biāo)識碼:A 文章編號:1002-848X(2015)03-0048-05
Seismic behavior experiment on steel column joint with outersleeve
Su Hexian, Tao Zhong, Bai Yu, Pan Wen, Yang Xiaodong, Yang Jianrong
(School of Civil Engineering, Kunming University of Science and Technology, Kunming 650500, China)
Abstract:The pseudostatic tests were carried out on column joint with outersleeve and bolt connection to study seismic behavior of the joint. The fullscale joint specimens of square tubular steel column and Hshaped steel beam were produced in the test. The working behavior and failure condition of the joint under cyclic loading were studied. The coordinated working behavior and shear transfer mechanism of the outersleeve and square tubular steel column were analyzed combined the test data. The test results show that the shear transfer way and mechanism of the joint are clear. The outersleeve can improve the flexural bearing capacity of the joint and works with the square tubular steel column cooperatively in force and deformation coordination. The joint has well seismic behavior. The
main factors influencing the seismic behavior of column joint with outersleeve and problems that should pay attention to in the construction were summarized, providing guidance for the engineering applications.
Keywords:column joint with outersleeve; pseudostatic test; seismic behavior; cooperative work
*國家自然科學(xué)基金項(xiàng)目 (51368027)。
作者簡介:蘇何先,博士研究生,Email:sxhh870@163.com。
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