Cover-Plate and Flange-Plate Steel Moment-Resisting Connections
Cover-Plate and Flange-Plate Steel Moment-Resisting Connections
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DOI：
10.1061/(asce)0733-9445(2002)128:4(474
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发表时间：
2002-04
期刊：
影响因子：
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通讯作者：
Taejin Kim;A. Whittaker;A. Gilani;V. Bertero;S. Takhirov
中科院分区：
文献类型：
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作者：
Taejin Kim;A. Whittaker;A. Gilani;V. Bertero;S. Takhirov
作为SAC项目二期的一部分，对钢板加固的钢抗弯矩连接进行了非线性有限元建模。对W143176柱与W30399梁的5个盖板连接和5个法兰连接进行了研究。用盖板或法兰板加固的连接比未加固的连接性能要好得多。法兰连接可能优于盖板连接。矩形增强板优于梯形增强板。应采用三面角焊缝将加强板连接到梁法兰上。无需在远离柱端面的塑性铰外支撑梁法兰以延缓侧扭屈曲。柱面梁腹板加固不影响剪力从加固梁到柱的传递。梁理论不应用于估计钢筋连接中的应力。
Nonlinear finite-element modeling of steel moment-resisting connections reinforced with steel plates was undertaken as part of the second phase of the SAC project. Five cover-plate and five flange-plate connections of W143176 columns to W30399 beams were studied. Connections reinforced with cover plates or flange plates will perform substantially better than unreinforced connections. Flange-plate connections are likely superior to cover-plate connections. Rectangular reinforcing plates are superior to trapezoidal shaped plates. Three-sided fillet welds should be used to join reinforcing plates to beam flanges. Bracing the beam flanges outside the plastic hinge remote from the column face to delay lateral-torsional buckling is not necessary. Beam web reinforcement at the column face does not affect the transfer of shear force from the reinforced beam to the column. Beam theory should not be used to estimate stresses in reinforced connections.