8米跨度钢结构，要用多大的工字钢主梁？次梁用多大？跨度多少？ 钢结构大梁8米的跨度用多大的工字钢
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2\u3001\u88c5\u710a\u57ab\u677f\u53ca\u5f15\u5f27\u677f\uff0c\u5176\u8868\u9762\u6e05\u6d01\u7a0b\u5ea6\u8981\u6c42\u4e0e\u5761\u53e3\u8868\u9762\u76f8\u540c\uff0c\u57ab\u677f\u4e0e\u6bcd\u6750\u5e94\u8d34\u7d27\uff0c\u5f15\u5f27\u677f\u4e0e\u6bcd\u6750\u710a\u63a5\u5e94\u7262\u56fa\u3002
3\u3001\u9047\u96e8\u3001\u96ea\u5929\u65f6\u5e94\u505c\u710a\uff0c\u6784\u4ef6\u710a\u53e3\u5468\u56f4\u53ca\u4e0a\u65b9\u5e94\u6709\u6321\u98ce\u3001\u96e8\u68da\uff0c\u98ce\u901f\u5927\u4e8e5m/s\u65f6\u5e94\u505c\u710a\u3002\u73af\u5883\u6e29\u5ea6\u4f4e\u4e8e\u96f6\u5ea6\u65f6\uff0c\u5e94\u6309\u89c4\u5b9a\u91c7\u53d6\u9884\u70ed\u548c\u540e\u70ed\u63aa\u65bd\u65bd\u5de5\u3002
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绛旓細鏈鍚庨氳繃缁撴瀯璁＄畻纭畾銆 25a宸ュ瓧閽鎴栬250*250鐨凥閽紙褰撶劧瓒婂ぇ瓒婂ソ鍜紝鍏蜂綋闇瑕佸弬鐓閽㈢粨鏋搴斿姏璁捐瑙勮寖杩涜璁＄畻锛夛紝鍏堕棿璺濆湪500-800mm涔嬮棿锛屼及璁″钩鍙颁笂闈㈤摵鐨勬槸鑺辩汗鏉垮惂锛屽彧瑕佷笉鏄泦涓嵎杞借繖鏍风殑缁撴瀯搴旇娌￠棶棰樸 25绫宠法搴瑕佹眰姣忓钩鏂圭背鎵块噸3.5T锛岀敤36B鐨勫伐瀛閽, 36B宸ュ瓧閽㈤棿璺濇渶澶т笉鑳借秴杩0.6m(60cm).
