混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2014年
3期
70-72
,共3页
混凝土结构%钢筋保护层%偏差控制%检测分析
混凝土結構%鋼觔保護層%偏差控製%檢測分析
혼응토결구%강근보호층%편차공제%검측분석
Concrete structure%Concrete cover%Deviation control%Detection and analysis
阐述了钢筋混凝土保护层厚度偏差对钢筋混凝土结构的承载力、粘结锚固性和耐久性的影响。介绍了中国石化某分公司对炼化一体化工程污水处理场74m×36m×8m大型钢筋混凝土生化池保护层厚度偏差进行控制和检测情况。结果表明，由于采用水平筋交叉定位后用箍筋固定主筋、加设封闭箍筋以及在钢筋与模板之间支垫特制垫块对钢筋定位等措施，提高了钢筋铺设的准确性和稳定性，减少了钢筋位移。经检测，其钢筋保护层厚度合格点率达到95%以上，满足设计图纸和GB50204-2002规范要求。
闡述瞭鋼觔混凝土保護層厚度偏差對鋼觔混凝土結構的承載力、粘結錨固性和耐久性的影響。介紹瞭中國石化某分公司對煉化一體化工程汙水處理場74m×36m×8m大型鋼觔混凝土生化池保護層厚度偏差進行控製和檢測情況。結果錶明，由于採用水平觔交扠定位後用箍觔固定主觔、加設封閉箍觔以及在鋼觔與模闆之間支墊特製墊塊對鋼觔定位等措施，提高瞭鋼觔鋪設的準確性和穩定性，減少瞭鋼觔位移。經檢測，其鋼觔保護層厚度閤格點率達到95%以上，滿足設計圖紙和GB50204-2002規範要求。
천술료강근혼응토보호층후도편차대강근혼응토결구적승재력、점결묘고성화내구성적영향。개소료중국석화모분공사대련화일체화공정오수처리장74m×36m×8m대형강근혼응토생화지보호층후도편차진행공제화검측정황。결과표명，유우채용수평근교차정위후용고근고정주근、가설봉폐고근이급재강근여모판지간지점특제점괴대강근정위등조시，제고료강근포설적준학성화은정성，감소료강근위이。경검측，기강근보호층후도합격점솔체도95%이상，만족설계도지화GB50204-2002규범요구。
The affect of the thickness deviation of reinforced concrete cover on the bearing capacity, bonding anchor-ing and durability of the concrete structures are introduced. The concrete covers of 74m×36m×8m large salty and oily bio-chemical pool at wastewater treatment plant are controlled and detected by Rebar Detection System in a certain branch, SINOPEC. The results show that the bars are fixed more accurately and stably by using the measures of applying main bars fixed by stirrups after cross-positioning of horizontal bar, adding closed stirrups, and fixing bar with support pads of fluted fine stone concrete pad between the bars and shuttering formworks. The testing data show that the qualified rate of concrete cover thickness is more than 95% and meets the requirements of design blueprints and GB50204-2002 "Code for acceptance of constructional quality of concrete structures".
