焊缝肢尖焊缝l㎜hf㎜l㎜hf㎜aB-303.8513081205Bb202.55908805bD-137.5708605Dc69.98508505cF87.72508505Fd-14.14508505未列入表中的其它腹杆杆力很小,皆按构造取hf=5㎜,l=50㎜9表3屋架杆件截面选用表杆件名称设计内力KN几何长度㎝计算长度㎝截面形式及规格截面面积㎝2回转半径㎝长细比稳定系数?设计应力N/㎜2xl0yl0xiyix?y?上弦-469.5150.81513022∠125×80×1039.422.266.1166.849.50.77155下弦476.9300.03009002∠110×70×1034.331.965.48153219139斜杆件aB-303.9213.2213.2213.22∠110×80×827.893.143.3468640.763143Bb202.6223178.42232∠63×614.581.932.9892.475139bD-137.5246196.82462∠80×618.82.473.6580670.688106Dc70246196.82462∠63×614.581.932.9810282.548cF87.7270.4216.3270.42∠63×614.581.932.98112910.481125Fd-14.1270.4216.3270.42∠63×614.581.932.981129110竖杆Aa-20.4151.5151.5151.52∠63×614.581.932.9878.5510.70420Cb-40.91801441802∠50×59.611.532.4594.173.50.59472Ec-40.92101682102∠50×59.611.532.45110860.49386Gd51.3240斜平面2162∠63×614.5835
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