预应力混凝土prestressed-concrete大学毕业论文外文文献翻译及原文

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1、毕业设计（论文）外文文献翻译文献、资料中文题目：预应力混凝土文献、资料英文题目：PrestressedConcrete文献、资料来源：文献、资料发表（出版）日期：院（部）：专业：班级：姓名：学号：指导教师:翻译日期:2017.02.14毕业设计（论文）外文资料翻译外文出处：_TheConcretestructure件：1、夕2、夕卜指导教师评语:签字：年/］日1、外文资料原文PrestressedConcreteConcreteisstrongincompression,butweakinten

2、sion:Itstensilestrengthvariesfrom8to14percentofitscompressivestrength.Duetosuchalowtensilecapacity，flexuralcracksdevelopatearlystagesofloading.Inordertoreduceorpreventsuchcracksfromdeveloping,aconcentricoreccentricforceisimposedinthelongitudinaldirec

3、tionofthestructuralelement.Thisforcepreventsthecracksfromdevelopingbyeliminatingorconsiderablyreducingthetensilestressesatthecriticalmidspanandsupportsectionsatserviceload，therebyraisingthebending,shear，andtorsionalcapacitiesofthesections.Thesections

4、arethenabletobehaveelastically，andalmostthefullcapacityoftheconcreteincompressioncanbeefficientlyutilizedacrosstheentiredepthoftheconcretesectionswhenallloadsactonthestructure.Suchanimposedlongitudinalforceiscalledaprestressingforce，i.e.，acompressive

5、毕业设计（论文）外文资料翻译外文出处：_TheConcretestructure件：1、夕2、夕卜指导教师评语:签字：年/］日1、外文资料原文PrestressedConcreteConcreteisstrongincompression,butweakintension:Itstensilestrengthvariesfrom8to14percentofitscompressivestrength.Duetosuchalowtensilecapacity，flexuralcracksdevel

6、opatearlystagesofloading.Inordertoreduceorpreventsuchcracksfromdeveloping,aconcentricoreccentricforceisimposedinthelongitudinaldirectionofthestructuralelement.Thisforcepreventsthecracksfromdevelopingbyeliminatingorconsiderablyreducingthetensilestress

7、esatthecriticalmidspanandsupportsectionsatserviceload，therebyraisingthebending,shear，andtorsionalcapacitiesofthesections.Thesectionsarethenabletobehaveelastically，andalmostthefullcapacityoftheconcreteincompressioncanbeefficientlyutilizedacrosstheenti

8、redepthoftheconcretesectionswhenallloadsactonthestructure.Suchanimposedlongitudinalforceiscalledaprestressingforce，i.e.，acompressiveforcethatprestressesthesectionsalongthespanofthestructuralelementpriortotheapplicationofthetransversegravitydeadandliv