A truss free reinforced prefabricated concrete baseplate with detachable channel steel(PBC)was proposed based on truss reinforced concrete laminated floor slabs.Bending tests,finite element analysis,and comparison were con-ducted on three prefabricated concrete baseplates,including PBC.The results show that PBC is composed of prefabricated concrete baseplates and channel steel connected by bolts,with low cost,convenient production,transportation,and installa-tion,and the channel steel can be reused,which has certain promotion and application value.The bending stiffness and ulti-mate bearing capacity of PBC are not significantly different from those of prefabricated concrete baseplates with reinforced trusses,and can meet the self weight and construction live load requirements of cast-in-place concrete.The finite element analysis results of the load mid span displacement relationship curves of three specimens are relatively close to the experi-mental data,and the calculation results of cracking load and ultimate load are also within an acceptable range compared to the experimental values,indicating the accuracy and reliability of the finite element modeling method for prefabricated con-crete baseplates proposed in this article.
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