土木工程毕业设计外文翻译

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1、12□Flexureofreinforcedconcretebeams钢筋混凝土梁的性能Example3-10(Designofareinforcedconcretebeamwithtensionreinforcementonly)==Areinforcedconcretebeam,withaneffectivedepthof16inchesandawidthof12inches,isreinforcedwithGrade60barsandhasaconcretecylinderstrengthof4000poundspersquareinch

2、.Thebeamcarriesasuperimposeddeadload,includingitsselfweight,of2.5kipsperfootrunandsuperimposedliveloadof2.7kipsperfootrunoveroneffectivespanof15feet.Determinetheareaoftensionreinforcementrequired.例3-10（在拉力作用下钢筋混凝土梁的设计）一个钢筋混凝土梁，其有效高度为16英寸，宽度为12英寸，钢筋的强度等级为60，混凝土的强度等级为4000磅每平方英

3、寸，计算跨度为15英尺，该梁承受的恒载为2.5千磅每英尺，活载为2.7千磅每英尺，求受拉钢筋的截面面积。Solution解：Theapplieddeadloadmomentisgivenby恒载作用下的弯矩为：Theappliedliveloadmomentisgivenby活载作用下的弯矩为：ThefactoredmomentatmidspanisobtainedfromACIEquation(9-1)as由ACI方程式得到的在跨中的弯矩为：Themaximumallowablefactoredmomentforasinglyreinforc

4、edbeamisobtainedfromTable3.3as由表3.3得出，单筋混凝土梁的最大允许弯矩为：Hencethesectionisadequate.从而这个弯矩是满足的。12□Flexureofreinforcedconcretebeams钢筋混凝土梁的性能Thedesignmomentfactoris弯矩设计系数为and和FromTable3-2,thecorrespondingtensionreinforcedindexis从表3-2可知，相应的张拉系数是Therequiredtensionreinforcementratiois

5、givenby所需受拉钢筋的配筋率是：Therequiredareaoftensionreinforcementis受拉钢筋的截面面积为ProvidethreeNo.10barswhich,fromTable1-7,givenanareaof3.81squareinches.========由表1-7查得3根10元钢筋的面积是3.81平方英寸。Examples3-11(Analysisofareinforcedconcreteslab)==============================Aone-way,reinforcedconcre

6、teslabiscontinuousoverfour,equal,clearspansof15feet.Theslabhasanoveralldepthof7incheswithconcretecylinderstrengthof3000poundspersquareinch.ThereinforcementatthetopoftheslabatthefirstinteriorsupportconsistsofNo.4,Grade60,barsat11inchesoncenter.Inadditiontoitsownweight,theslab

7、carriesasuperimposeddeadloadof26poundspersquarefoot.Determinethemaximumuniformlydistributedsuperimposedliveloadwhichtheslabcansupport.例3-11（钢筋混凝土板的分析）一个四边连续，相等的混凝土单向板，其净跨为15英尺，板的全高为7英寸，其混凝土强度等级为3000磅每平方英寸，板的上部配筋为间距11英寸4根强度等级60的钢筋，包括板的自重，板上的恒载为26磅每平方英尺。求板所能承受的最大均布活载。Solution解

8、:Theminimumallowableconcretecovertothereinforcementintheslab,inaccordancewi