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文章提出了一種改良的鋼桁架橋型,較好地解決了小寬跨比人行橋普遍存在的結(jié)構(gòu)粗笨、單位造價偏高、易發(fā)生人致振動等問題。該橋主橋?yàn)楹喼ЫY(jié)構(gòu),計(jì)算跨徑68.4m,橋面全寬5m,鋼結(jié)構(gòu)總重約137.7噸。文章介紹了橋梁的設(shè)計(jì)思路,并對結(jié)構(gòu)進(jìn)行了靜力、動力、穩(wěn)定性等方面的計(jì)算分析,驗(yàn)證了該結(jié)構(gòu)的合理性及安全性,可為同類橋梁設(shè)計(jì)提供參考。
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