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上承式鋼桁梁橋的剛度分析——將列車上承式鋼桁梁橋視為一個(gè)整體振動(dòng)系統(tǒng)。上承式鋼桁梁橋采用桁段有限元法離散,列車采用具有26個(gè)自由度的二系彈簧車輛空間振動(dòng)模型。應(yīng)用彈性系統(tǒng)動(dòng)力學(xué)總勢(shì)能不變值原理及形成矩陣的“對(duì)號(hào)入座”法則,建立列車一橋梁時(shí)變系統(tǒng)...
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單線鐵路下承式栓焊簡(jiǎn)支鋼桁梁橋 課程設(shè)計(jì) 目 錄 第一章 設(shè)計(jì)資料 ·······································1 第一節(jié) 基本資料 ·················································· 1 第二節(jié) 設(shè)計(jì)內(nèi)容設(shè)計(jì)內(nèi)容 ········································ 1 第三節(jié) 設(shè)計(jì)要求 ·················································· 2 第二章 主桁桿件內(nèi)力計(jì)算 ·································3 第一節(jié) 主力作用下主桁桿件內(nèi)力計(jì)算 ··························· 3 第二節(jié) 橫向風(fēng)力作用下的主桁桿件附加內(nèi)力計(jì)算 ···············