SH 3088-1998 石油化工塔盘设计规范
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来源:标准资料网
基本信息
标准名称: | 石油化工塔盘设计规范 |
英文名称: | Specification for design of tray for petrochemical industry |
中标分类: |
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替代情况: | SHJ 1071-1986;被SH/T 3088-2012代替 |
发布部门: | 中国石油化工总公司 |
发布日期: | 1998-03-30 |
实施日期: | 1999-09-01 |
首发日期: | |
作废日期: | 2013-03-01 |
出版社: | 中国石化出版社 |
出版日期: | |
页数: | 23页 |
适用范围
本规范适用于石油化工企业板式塔分块式塔盘的机械设计。执行本规范时,尚应符合现行有关强制性标准规范的要求。
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所属分类:
基本信息
标准名称: | 进出口蔬菜、水果、粮谷中氟草烟残留量检测方法 |
发布部门: | 中华人民共和国国家质量监督检验检疫总局 |
发布日期: | 2011-02-25 |
实施日期: | 2011-07-01 |
首发日期: | |
作废日期: | |
出版社: | 中国标准出版社 |
出版日期: | 2011-07-01 |
适用范围
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所属分类: 建材 建筑构配件与设备 建筑构配件与设备综合 建筑材料和建筑物 建筑构件 门窗
【英文标准名称】:StandardTestMethodforHigh-StrainDynamicTestingofPiles
【原文标准名称】:基桩高应变动力检测的标准试验方法
【标准号】:ASTMD4945-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D18.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:augeredpiles;deepfoundations;drilledshafts;drivenpiles;drivingstresses;dynamictesting;pilebearingcapacity;piledrivinghammerperformance;pileintegrity;Accelerometers;Bearingcapacity;Displacement;Force;Impacttesting--soil/rock/rel
【摘要】:Basedonthemeasurementsfromstrainorforce,andacceleration,velocity,ordisplacementtransducers,thistestmethodobtainstheforceandvelocityinducedinapileduringanaxialimpactevent(seeFigs.1and2).TheEngineermayanalyzetheacquireddatausingengineeringprinciplesandjudgmenttoevaluatetheintegrityofthepile,theperformanceoftheimpactsystem,andthemaximumcompressiveandtensilestressesoccurringinthepile.Ifsufficientaxialmovementoccursduringtheimpactevent,andafterassessingtheresultingdynamicsoilresponsealongthesideandbottomofthepile,theEngineermayanalyzetheresultsofahigh-straindynamictesttoestimatetheultimateaxialstaticcompressioncapacity(seeNote1).Factorsthatmayaffecttheaxialstaticcapacityestimatedfromdynamictestsinclude,butarenotlimitedtothe:(1)pileinstallationequipmentandprocedures,(2)elapsedtimesinceinitialinstallation,(3)pilematerialpropertiesanddimensions,(4)type,density,strength,stratification,andsaturationofthesoil,orrock,orbothadjacenttoandbeneaththepile,(5)qualityortypeofdynamictestdata,(6)foundationsettlement,(7)analysismethod,and(8)engineeringjudgmentandexperience.IftheEngineerdoesnothaveadequatepreviousexperiencewiththesefactors,andwiththeanalysisofdynamictestdata,thenastaticloadtestcarriedoutaccordingtoTestMethodD1143shouldbeusedtoverifyestimatesofstaticcapacityanditsdistributionalongthepilelength.TestMethodD1143providesadirectandmorereliablemeasurementofstaticcapacity.Note18212;Theanalysisofadynamictestwillunderpredicttheultimateaxialstaticcompressioncapacityifthepilemovementduringtheimpacteventistoosmall.TheEngineershoulddeterminehowthesizeandshapeofthepile,andthepropertiesofthesoilorrockbeneathandadjacenttothepile,affecttheamountofmovementrequiredtofullymobilizethestaticcapacity.Apermanentnetpenetrationofaslittleas2mmperimpactmayindicatethatsufficientmovementhasoccurredduringtheimpacteventtofullymobilizethecapacity.However,highdisplacementdrivenpilesmayrequiregreatermovementtoavoidunderpredictingthestaticcapacity,andcast-in-placepilesoftenrequirealargercumulativepermanentnetpenetrationforaseriesoftestblowstofullymobilizethecapacity.Staticcapacitymayalsodecreaseorincreaseovertimeafterthepileinstallation,andbothstaticanddynamictestsrepresentthecapacityatthetimeoftherespectivetest.Correlationsbetweenmeasuredultimateaxialstaticcompressioncapacityanddynamictestestimatesgenerallyimprovewhenusingdynamicrestriketeststhataccountforsoilstrengthchangeswithtime(see6.8).Note28212;Althoughinterpretationofthedynamictestanalysismayprovideanestimateofthepile''stension(uplift)capacity,usersofthisstandardarecautionedtointerpretconservativelythesideresistanceestimatedfromanalysisofasingledynamicmeasurementlocation,andtoavoidtensioncapacityestimatesaltogetherforpileswithlessthan10membeddedlength.(Additionaltransducersembeddednearthepiletoemayalsohelpimprovetensioncapacityestimates.)IftheEngineerdoesnothaveadequatepreviousexperienceforthespecificsiteandpiletypewiththeanalysisofdynamictestdatafortensioncapacity,thenastaticloadtestcarriedoutaccordingtoTestMethodD3689shouldbeusedtoverifytensioncapac........
【中国标准分类号】:P20
【国际标准分类号】:93_020
【页数】:10P.;A4
【正文语种】:英语