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單線鐵路下承式栓焊簡支鋼桁梁橋 課程設計 目 錄 第一章 設計資料 ·······································1 第一節(jié) 基本資料 ·················································· 1 第二節(jié) 設計內容設計內容 ········································ 1 第三節(jié) 設計要求 ·················································· 2 第二章 主桁桿件內力計算 ·································3 第一節(jié) 主力作用下主桁桿件內力計算 ··························· 3 第二節(jié) 橫向風力作用下的主桁桿件附加內力計算 ···············