钢结构设计屋架杆件截面选择表

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1、杆件杆件杆内力（KN）截面形式和规格截面面积A、A（cm2）计算长度回转半径长细比(N/mm2)(N/mm2)填板数端部焊缝名称编号（cm）（cm）（cm）（cm）肢背肢尖上弦AI-711.12┓┏140×90×10短肢相并44.52150.8301.62.566.7758.944.5451.81500.813196.478下弦ai+706.92┛┗125×80×831.9830011852.286.07131.6195.23502214斜腹杆Ba-413.34125×80×831.98253.5253.54.013.2763.277.5

2、85.91500.649199.1528-1806-130Bc+320.61┐┌70×616.31208.6260.82.153.269780350196.4526-1905-110Dc-253.50┐┌90×621.28229.5286.92.794.0582.2670.841500.673177.0126-1605-90De+172.42┐┌63×512.28228.72285.91.942.97117.996.26350140.4126-1105-90Fe-114.64┐┌75×514.82250.3312.92.333.45107

3、.490.691500.508152.2736-805-80Fg+62.79（-5.25）┐┌56×510.84249.5311.91.722.69145.1115.91500.326(14.86)57.9235-805-80Hg+36.02（-35.37）┐┌63×512.28271．7339．61．942．97140．1114．341500.345(83.49)29.4735-805-80Hi-78.14（27.18）┐┌63×512.28270.7338.41．942．97139.5111.321500.349182．33（22.1

4、3）35-805-80竖腹杆Aa-23.30┐┌63×512.28179.1179.11.942.9773．160．31500.74921.425-805-80Cc-46.60┐┌63×512.28183.22291.942.9794.4377.11500.52672.1425-805-80Ee-46.60┐┌63×512.28207.22591.942.97106.887.211500.51373.9735-805-80Gg-46.60┐┌63×512.28231.22891.942.97119.297.311500.44285.859

5、35-805-80Ii+93.263×5X012.28287.12.45117.1835097.0435-805-80附表2：屋架杆件截面选择表