reasons ofcored slabbeamslcrn傩 There缸e many bnds ofc删slab beams’breakages such ascracks'reinforclng SteeI barsb砌,and distortion exceeding thelimitation and SOon·Thesebreakagesc锄be resultedby me diversities ofprojects,blueprints,construction andquairy contr01· Analysis classified the causes of cored slabbeams’cracks aSfollow:over loaded capacity'poor construction quality,loss ofpre-stress and rustofreinforcing steelbars, deficiency offoundation and accessory facilities,difference int锄p锄tu陀锄d snnnK nfconcrete. 王·s孵潮口玎d胛册 andh。wt。删by impfoVingbridgeA nalyses tell why thecracks appear ana now‘u aVulu u了IIlIPlV’?6?一D’ management,desi髓,c。nstruction andmaintenance.Meanwhile,the trend。fc删 slabbe锄s used inhighway was forecasted inthepaper. Keywords:cored slabbeams,damage analyses,improVing adVices
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