1、某6m跨度简支梁的截面和荷栽（含梁自重在内的设计值）如图所示。在距支座
2.4m
处有翼缘和腹板的拼接连接，实验算其拼接的对接焊缝。已知钢材为
Q235
，采用E43型焊条，手工焊，三级质量标准，施焊时采用引弧板。
解：①计算焊缝截面处的内力
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计算焊缝截面几何特征值：
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计算焊缝强度
查附表得
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