Investigation of Thermal Bowing in UHPC Precast Double Wythe Wall Panels

Precast/prestressed concrete sandwich panels (PCSP) are used widely as architectural or structural units. They consist of two concrete wythes, rigid insulation foam in between, and shear connectors. Although they exhibit excellent attributes and perform well in the field, some factors can deter the full utilization of PCSPs and cause safety concern. One of those factors is the thermal bowing, a deflection of the panel caused by difference in temperature between the outer and inner wythes. Current design standards are unable to precisely predict thermal bowing, while a scientific method is still to be seen. This research examines the thermal bowing phenomenon in PCSPs using finite element (FE) analysis, with an aim of accurately predicting thermal bowing for different types of PCSPs. TO BE CONT'D

Akram Jawdhari
Faculty Supervisor: 
Amir Fam
Partner University: