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1、拟建栈桥计算书1、概述1.1设计说明本工程项目拟建栈桥结构形式为4排单层贝雷桁架，使用900型标准贝雷花架进行横向联结，栈桥纵向标准设计跨径为12m，桥面系为桥面板；横向分配梁为I22，间距为0.75m；在横向分配梁纵向铺设I12.6工字钢，间距为0.24米，I12.6工字钢要花焊在I25横向分配梁上；桥面板采用δ=8mm钢板，与I12.6工字钢进行焊接；基础采用φ630×10mm钢管桩，按柱桩设计，为加强基础的整体稳定性，每排钢管桩间均采用[12号槽钢连接成整体，桩长9米，外包1.0米厚C25混凝土；墩顶横梁采用2工25a。栈桥布置结构形式如下图1。图1、栈桥一般构造图（单位：
2、cm）栈桥桥墩按线路前进方向编号为1#～16#墩，从功能上分两种，分别为单排桩一般桩、双排桩制动桩，两种桥墩结构形式及功能说明如下：单排桩一般桩：单排、每排3根桩，桩中心间距2.2m,桩顶标高m，桩间设置横向连接系，桩顶设置双排I25a工字钢支撑贝雷架主梁，与贝雷架主梁间不连接，不传递纵向水平力。urbanarea2.5.2YibincityinYibincity,accordingtoresourceandenvironmentcharacteristicsUrbanpopulationandurbanspatialdistribution,spatialdistributio
3、nofindustries,majorinfrastructureCorridorlayout,combinedwiththefuturedevelopmenttrendofsyntheticjudgments,planning,urbanspatialstructureofurbansystemcanbesummarizedas:"apolealongthetwoaxes"."A"referstothemetropolitanareaalongtheYangtzeRiver,isthecoreareaofthedevelopmentofthecity.Planstobuildf
4、ortheYangtzeRivereconomicbeltonthepillar,advancingalongthe...GuangheRiver,Yiliang,prestigeoftheexternalcohesionofzhaotong,Yunnan,internalconnectingYibincitytotheNorth.TheSichuan-Yunnan-GuizhouborderareaofYibin,inthecityofzhaotong,liupanshuithree,zhaotongcity,themostpopulousandmostextensivereg
5、ions,themosteconomicallybackward,totheNorthinWumengmountainareaofyanjin,shuifu,suijiangcountiesradiationpowerisrelativelyweak.Yibincityandinfrastructureinsuchareasshouldbestrengthenedanddocking,extendingsouthwardtopublicservices,promotethedevelopmentofmineralresourcesinNortheastYunnan,expando
6、ureconomichinterland,drivingsynchronousliftinginSichuan-Yunnan-Guizhouborderarea.Thisurbanaxiswithmineralresourceadvantages,focusonthedevelopmentofadvancedtechnology,comprehensiveutilizationofresourcesofhigherenergy,newbuildingmaterials,chemicalindustry,developingnewenergyandminingtowns.Urban
7、spaceorganization-ingongxianCounty,Gao,junlianCountyCenterforareaorganizations,improve,Gao,Gong,junlianCountycomprehensiveservices,andpromotingregionaleconomicdevelopmentandpopulationgrowthoftheagglomeration.Alongthemaintrafficarteriestoimple
