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1、浅谈混凝土结构裂缝成因及控制措施网络高等教育本科生毕业论文（设计）题目：浅谈混凝土结构裂缝成因及控制措施学习中心：涟水奥鹏学习中心层次：专科起点本科专业：土木工程年级：2012年春季学号：200908571347学生：濮伟国指导教师：孙浩完成日期：2013年11月11日international,Unicominternationalmarket,adaptedfuturepeopleoncityofdevelopmentneeds,basedYuindustrysupport,andtraffic
2、advantage,andYangtzeRiverculture,andecologicalcivilization,advantage,establishedcitydevelopmenttarget:radiationabsorbYangtzeRiverupstreamchuanYunnanGuizhouofregionalcenter,andinternationalecologicallandscapeculturecity.2.3.2economicdevelopmentinYibinci
3、ty,goal2020GDPreached300billionyuan,thepercapitaGDPreached580002030regionalGDPreached800billionyuan,thepercapitaGDPreached138000.2020industrialstructureadjustmentinYibincityas9:56:35;2030industrialstructureadjustmentforthe6:47:47.Industrialoutputby2020
4、of510billionyuanin2030andreach1.2trillionyuan.2.4oftheurbanpopulationandlandsize2.4.1Yibincity,populationsizeaccordingtothedifferentforecastingmethodsandthesizeofpopulationenvironmentalcapacitycheck,thedowntownmainfuturepopulationprojectionsfortheyeara
5、reasfollows:downtownmainfuturepopulationprojectionsfortheyear(unit:million)forecastmethods,2020,2030,balancingmethodfor130-150table2.4-1170-190ultrahighspeeddevelopmentofrelationshipbetweeneconomicandlabourlawdevelopmentof150210140180Generaldevelop1301
6、.7millionpeople,resourcesandenvironmentcapacitychecklandpopulationcarryingcapacity--280waterresourcesandpopulationcapacity-doesnotconstituteabindingcomprehensivepredictionofecologicalresourcescoupled--310resultsof140-180in2020,theactualresidentpopulati
7、onofabout1.4millionpeople;2030theactualresidentpopulationofabout1.8millionpeople.2.4.2theuseofscale,Yibincity2030percapitaindexofurbanconstructionlandinthecenterof100squaremetersperperson.Yibincityconstructionlandstandardsandscaleoftabletable2.4-2yearp
8、opulationsize(mass)landsize(km2)landpercapita((km2/people)201282.576.1992.4202014014010020302030Yibin180180100figure2.4-1figure2.5land-useplanninglayoutofurbanspaceincentralIII浅谈混凝土结构裂缝成因及控制措施内容摘要裂缝是钢筋混凝土结构中常见的一种作用效应，混凝土结构裂缝是建筑界最常见的、较难避
