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Q8:main material of floorbeam hangers should not be coped or notched. built-up hangers should have solid or perforated web plates or lacing. 橫梁吊桿的主材料不應(yīng)搭接或有凹口。裝配好的吊桿應(yīng)該有實心或鉆孔的腹板或支撐。