THE CAPACITY OF SHORING MAY NOT BE WHAT YOU THINK
Following a collapse during concrete placement, an investigation concluded that the cause of the collapse was a stability failure of the shoring elements supporting the wet concrete.
The analyses and testing that was performed following the collapse focused on details of the shoring system, which were found to be common within the industry. The findings show that these common details result in the inability of shoring systems, analyzed or tested, to achieve their stated load capacities.
This presentation will discuss the collapse, the initial investigation and, the results of three full-scale laboratory tests performed on common shoring towers. The presentation will show how common details decrease the capacity of shoring systems, how such detailing can be avoided, and point out other potential hazards.
ABOUT OUR SPEAKER:
Aaron Larosche, Ph.D., P.E., S.E.
Aaron Larosche, Ph.D., P.E., S.E. is a consulting structural engineer in Austin, TX. His experience includes investigation of structural failures, evaluation of existing structures, structural concrete repair, and nondestructive testing of existing structures. During his time as a consulting engineer Aaron has worked on projects throughout the United States and Central America each with their unique challenges.
Aaron received his BS in Civil Engineering from Arizona State University, and both his Masters of Science and PhD in Civil Engineering from the University of South Carolina. He is an active member of the American Concrete Institute (ACI). Currently, Aaron is the chair of ACI committees 437-strength evaluation, and 563-K specifications for repair with external reinforcement. Aaron is also a member of committees developing the next iteration of the concrete repair code - 562-C and 562-G.
