CRACKING IN PARTIALLY PRESTRESSED STRUCTURAL SECTIONS

RISSBILDUNG BEI TEILWEISE VORGESPANNTEN BAUTEILEN

THEORETICAL AND PRACTICAL STUDIES ARE TO BE CARRIED OUT TO DETERMINE HOW SLACK AND PRESTRESSED REINFORCEMENT AND THE SHEET METAL SHEATH INTERACT DURING CRACKING. BASED ON THE RELATIONS FOUND RECOMMENDATIONS ARE TO BE MADE AS TO HOW A SUITABLE COMBINATION OF SLACK AND PRESTRESSED REINFORCEMENT IN PARTIALLY PRESTRESSED STRUCTURAL ELEMENTS CAN BE USED TO GUARANTEE SAFE CRACKING UNDER TENSILE STRESS. THE EXISTING LITERATURE ON THE SUBJECT IS TO BE INSPECTED, AND EFFORTS ARE TO BE MADE TO SEE HOW FAR CONDITIONS ASSOCIATED WITH REINFORCED CONCRETE CAN BE TRANSFERRED TO PARTIALLY PRESTRESSED ELEMENTS. A SERIES OF 15 TENSILE MEMBERS ARE TO BE EXAMINED IN THE PRACTICAL TESTS.