计算图示轴心受压构件截面的承载力。,在与侧向支承连接处,上下翼缘板各开有2孔φ24,材料Q235F,局部稳定可以保证,对x轴b类,对y轴c类,截面毛面积,,,。 稳定系数φ λ 40 45 50 55 60 65 70 75 80 φ b 0.889 0.878 0.856 0.833 0.807 0.780 0.751 0.720 0.688 c 0.839 0.807 0.775 0.742 0.709 0.669 0.643 0.610 0.578c5369012485271f9fa7ef2f9ea311d4a.gif2a8c8c1adadb45645dafd5cb5f5ac235.gif3d1e5e58b085c498115e1da32bb28a4e.gif52a180836540f4efeb82185bff5fa608.gif4713e71e86cdf86071b360e834b4129b.gif3c296f8f03e503b8484a01de527cceed.gif73ff612cdf9331f3774dd1530a21a11f.gifb50b92e4aa406cf35f53718bee15a407.gifb50b92e4aa406cf35f53718bee15a407.gif50238ab561dc2d90dea657c89da68da2.gif74f4afddce121283c435bfce2639672e.gif
计算图示轴心受压构件截面的承载力。,在与侧向支承连接处,上下翼缘板各开有2孔φ24,材料Q235F,局部稳定可以保证,对x轴b类,对y轴c类,截面毛面积,,,。 稳定系数φ λ 40 45 50 55 60 65 70 75 80 φ b 0.889 0.878 0.856 0.833 0.807 0.780 0.751 0.720 0.688 c 0.839 0.807 0.775 0.742 0.709 0.669 0.643 0.610 0.578c5369012485271f9fa7ef2f9ea311d4a.gif2a8c8c1adadb45645dafd5cb5f5ac235.gif3d1e5e58b085c498115e1da32bb28a4e.gif52a180836540f4efeb82185bff5fa608.gif4713e71e86cdf86071b360e834b4129b.gif3c296f8f03e503b8484a01de527cceed.gif73ff612cdf9331f3774dd1530a21a11f.gifb50b92e4aa406cf35f53718bee15a407.gifb50b92e4aa406cf35f53718bee15a407.gif50238ab561dc2d90dea657c89da68da2.gif74f4afddce121283c435bfce2639672e.gif
图示焊接工字形截面轴压柱,在截面有两个M20的C级螺栓孔,并在跨中有一侧向支撑,该杆能承担多大外荷载?材料Q235F,。对x轴b类,对y轴c类,截面毛面积,,,。 稳定系数φ λ 40 45 50 55 60 65 70 75 80 φ b 0.889 0.878 0.856 0.833 0.807 0.780 0.751 0.720 0.688 c 0.839 0.807 0.775 0.742 0.709 0.669 0.643 0.610 0.5784d7e64d7eda9f229af1433edf802ed9c.gif9c24f5b500cad96a9f99b0a83b3e8bcf.gif08119075cb83cee995a768bdb79f7a1a.gif73bbb10160a1c144937870649608f8f7.gif0ea72b6087054226b45eb802b3e4a532.gifd7c5230350e62dc6651e391c75216420.gif
图示焊接工字形截面轴压柱,在截面有两个M20的C级螺栓孔,并在跨中有一侧向支撑,该杆能承担多大外荷载?材料Q235F,。对x轴b类,对y轴c类,截面毛面积,,,。 稳定系数φ λ 40 45 50 55 60 65 70 75 80 φ b 0.889 0.878 0.856 0.833 0.807 0.780 0.751 0.720 0.688 c 0.839 0.807 0.775 0.742 0.709 0.669 0.643 0.610 0.5784d7e64d7eda9f229af1433edf802ed9c.gif9c24f5b500cad96a9f99b0a83b3e8bcf.gif08119075cb83cee995a768bdb79f7a1a.gif73bbb10160a1c144937870649608f8f7.gif0ea72b6087054226b45eb802b3e4a532.gifd7c5230350e62dc6651e391c75216420.gif
求图1轴心受压构件截面的设计承载力N,两端铰接轴压柱,柱高6m,l0x=6m,l0y=3m,横截面上有1个直径为24mm的螺栓孔,如图1所示。已知柱毛截面惯性矩:,。钢材Q235B,。(截面对2个主轴均属b类,稳定系数φ见表1。) 表1稳定系数φ λ 40 45 50 55 60 65 70 75 80 85 90 95 φ 0.889 0.878 0.856 0.833 0.807 0.780 0.751 0.720 0.688 0.655 0.621 0.588f7cfd21b30eaba1e97279fbde8cd1d81.gif687868591b3c05455c66b5a910109449.gif0c8acef5f487cd171f04f325bf1654ef.gifb5c10136c7599c5b2920300e14a0988e.gif
求图1轴心受压构件截面的设计承载力N,两端铰接轴压柱,柱高6m,l0x=6m,l0y=3m,横截面上有1个直径为24mm的螺栓孔,如图1所示。已知柱毛截面惯性矩:,。钢材Q235B,。(截面对2个主轴均属b类,稳定系数φ见表1。) 表1稳定系数φ λ 40 45 50 55 60 65 70 75 80 85 90 95 φ 0.889 0.878 0.856 0.833 0.807 0.780 0.751 0.720 0.688 0.655 0.621 0.588f7cfd21b30eaba1e97279fbde8cd1d81.gif687868591b3c05455c66b5a910109449.gif0c8acef5f487cd171f04f325bf1654ef.gifb5c10136c7599c5b2920300e14a0988e.gif