欢迎来到天天文库
浏览记录
ID:51464470
大小:3.07 MB
页数:6页
时间:2020-03-25
《济南长清黄河公路大桥主桥设计方案比选.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、桥梁建设2016年第46卷第4期(总第239期)BridgeConstruction,V01.46,No.4,2016(TotallyNo.239)97文章编号:1003—4722(2016)04一0097—06济南长清黄河公路大桥主桥设计方案比选王志英,徐召,王溜鑫,赵洪蛟,张常勇(山东省交通规划设计院,山东济南250031)摘要:济南长清黄河公路大桥主桥为(102+4×168+102)m的变高钢桁架连续梁桥。对该桥钢桁梁型式,主桁型式,桥面板类型、结构体系及其与纵横粱及下弦的结合方式以及节间横梁、横联设置与否等结构设计方案进行比选。从结构强度、刚度、经济,l生
2、等方面综合考虑,最终推荐采用下承式钢桁梁桥;设2片主桁,间距27m,主桁采用不带竖杆的三角形桁架;桥面采用纵横粱体系混凝土桥面板,桥面板与纵横梁及钢桁梁下弦杆结合;设置上平联、桥门架,不设横联、下平联;不设节间横梁的桥梁设计方案。目前该方案已顺利实施。关键词:连续梁桥;钢桁梁;主桁;混凝土桥面板;纵横梁体系;节间横梁;横联;方案比选中图分类号:U442.54;U448.211文献标志码:AComparisonandSelectionofDesignSchemesforMainBridgeofChangqingHuangheRiverHighwayBridgeinJ
3、i7nanWANGZhi—ying,XUZhao,WANGMing-xin,ZHAOHong-jiao,ZHANGChang—yong(ShandongProvincialTransportPlanningandDesignInstitute,Ji’nan250031。China)Abstract:ThemainbridgeofChangqingHuangheRiverHighwayBridgeinJi7nanisavariableheightcontinuoussteeltrussgirderbridgewithspanarrangement(102+4×168
4、+102)m.Thedesignschemesforthetypesofthesteeltrussgirder,maintrussesanddeckslabs,forthestruc—turalsystem,thecompositewayofthedeckslabs,stringers。crossbeamsandIowerchordsofthetrussgirderaswellasforthenecessityOfarrangement0fthepanelcrossbeamsandthelateralbracingsforthebridgewerecompared
5、.Incomprehensiveconsiderationofthestructuralstrength,stiffnessandeconomy,theschemeforthethroughcontinuoussteeltrussgirderbridgewasselect—edandwasrecommended.Intherecommendedscheme,2maintrusseswithspacingdistanceof27marearrangedandthemaintrussesarethetriangulartrusseswithnoverticalmemb
6、ers.ThefIoorsystemofthebridgeisthesystemoftheconcretedeckslabs,stringersandcrossbeamsandthedeckslabsarecompositedwiththestringers,crossbeamsandthelowerchords.TheuPDerbrac—ingsandportalframesarearranged.Thelateralbracings,lowerbracingsandthepanelcrossbeamsarenotarranged.Currently,thesc
7、hemehasbeenputintopracticefavorablv.Keywords:continuousgirderbridge;steeltrussgirder;maintruss;coneretedeckslab:stringerandcrossbeamsystem;panelcrossbeam;lateralbracing;schemecomparisonandselec—tion1概述济南长清黄河公路大桥起点为济南市长清区,终点为德州市齐河县,建设总里程为8.8km,其中桥梁总长6014m。桥位区年平均气温13.8℃,最冷月为1月,月平均气温为一0.
8、4℃;最热
此文档下载收益归作者所有