大体积混凝土跳仓法浇筑施工应用及关键技术措施

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中图分类号:TU745 文献标志码:A 文章编号:2095-2945(2025)24-0082-07
Abstract:The hydration heatof massconcrete pouring causes theinternal heatingandcoling processIfreasonable measures arenottaken,harmfultemperatureshrinkagecrackswillappearuringthemassconcretepouringandcoolingprocessTetraditioal practiceofsetingpost-pouredstripshasgreatdificultiesitermsofshedule,qualityandmanagementInviewoftissituation thispapertakesthefoundationslabpouringofahigh-risebuildingwithatotalbuildingareaof178,50Om²astheresearch background,itroducestchicalicipleofempingiletdndtdingsilethod,dfti processofthejumpingsilomethodconstructiontechnologyinactualprojectslabpouringandkeyconstructiontechnicaleasures. Basedonthefiniteelementcalculationresults,therationalityofthejumpingsilomethodconstructionforthisprojectisproved, which providesengineering practical experience forthejumping silo method pouring construction technologyof mass concrete.
Keywords:massconcrete;jumpingmethodconstructiontechnology;thermal stress finiteelementanalysis;concreteexpansion post-poured strip; technical application
混凝土材料抗拉强度通常仅为抗压强度的十分之一,短期加载极限拉伸变形范围为 (0.6~1.0)×10-4 大约相当于温降 6~10C[1] 。(剩余7323字)