Analysis on Load Capacity of Grouted Ducts Connected Precast Piers under Action of Bi-directional Compression and Bending

Abstract In order to improve the accuracy of calculation method bearing capacity prefabricated pier connected by grouting bellows, formula ultimate assembled bridge piers with corrugated pipe connection under action bi-directional compression and bending is deduced. Firstly, quasi-static testing cast-in-place unidirectional loading are introduced, capacities compared. Secondly, according arrangement position neutral axis static force balance relationship, formulas in two directions constant axial Finally, derivation were verified experimental results, calculated yield surfaces different forces established. The results show that relatively close numerical average error does not exceed 10%, P-Mx-My three-dimensional surface provided a simple quick for cross-sectional safety verification precast segmental Grouting Corrugated Pipe Connection.