Experimental analysis of crack development of an UHPC wall element under shear loading

摘要

UHPC(Ultra High-Performance Concrete)is an innovative material that enables design of lightweight and structurally optimized,long-lasting structures.In this paper is presented experimental analysis of precast webs of”butterfly web”box-girder bridge on scaled-down specimens.Pretensioned beam specimens were analysed in 2 variants - with continuous web and with lightened web.Based on the experimental results are both variants compared and are presented numerical and material models suitable for UHPC modelling in software SCIA Engineer.In SCIA Engineer is implemented modified Mazarz material damage model which is applicable for material with residual strength typical for FRC and UHPFRC.