预应力混凝土箱梁桥竖向预应力损失的研究

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1、长沙理工大学硕士学位论文预应力混凝土箱梁桥竖向预应力损失的研究姓名：林鸣申请学位级别：硕士专业：桥梁与隧道工程指导教师：颜东煌20070501abstractWiththedeVelopment0fsciencetechnologyandtrafficenterpfise，Theprestfessedconcrete(PC)boxgirderbridgesridgehasbeengrowinguprapidlyintherecentyearswithit’suniquepredOminanceOfhandycOnstruction，economicalcost，ReasOnableinte

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