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SUMMARY:Crack-Based Assessment of Concrete Structures – New Ways to Inte
 rpret Cracks in Shear Critical Members
DTSTART:20260602T120000
DTEND:20260602T130000
DTSTAMP:20260528T174901Z
UID:e26891e9b28464d2c4b4bbbffb1920212cec2c19dc2dfaafbacf90fb
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Giorgio T. Proestos\, Associate Professor in the Depart
 ment of Civil\, Construction\, and Environmental Engineering at North Caro
 lina State University in the United States.\nAbstract\nConcrete structures
  can crack as a result of extreme events or normal service conditions. Cra
 cks\, being one of the few visual indicators of distress in concrete struc
 tures\, often raise questions about the safety of structural members. Many
  advanced methods exist to predict crack patterns and compare them with ob
 servations\; however\, in many cases\, developing such models is not econo
 mically practical for rapid assessments. Additionally\, if the predicted c
 rack shapes and crack widths do not fully agree with observations\, questi
 ons may remain regarding the applicability of the modeling approach. The s
 tructural engineering field lacks methods that use crack information in co
 ncrete structures as direct input to determine how close a member is to fa
 ilure and to quantify how dangerous the observed cracks are. This seminar 
 will describe recent research on the development of crack-based assessment
  methods for reinforced concrete members. The seminar will first introduce
  several large-scale experiments conducted on shear-critical beams and mon
 itored using high-resolution\, full-field-of-view\, three-dimensional digi
 tal image correlation equipment. The presentation will describe how the de
 tailed displacement field data are used to determine crack shapes and loca
 l crack kinematics\, and how these data can be used to identify the shear 
 transfer mechanisms along critical cracks. The presentation will then desc
 ribe how the Two Parameter Kinematic Theory can be integrated with measure
 d crack information to conduct crack-based assessments of deep beams. The 
 results indicate the importance of accounting for crack properties and dem
 onstrate how doing so significantly improves structural assessments. The s
 eminar will conclude with a discussion of ongoing research and how the res
 ults are being used to develop generalized crack-based assessment methods.
 \n\nShort Biography\nDr. Proestos is an Associate Professor in the Departm
 ent of Civil\, Construction\, and Environmental Engineering at North Carol
 ina State University in the United States. His expertise is in the behavio
 r\, modeling\, and experimental investigation of reinforced and prestresse
 d concrete structures\, with particular emphasis on the shear and torsiona
 l response of members. Dr. Proestos’s research in the Structural Enginee
 ring and Mechanics Group focuses on large-scale experimental testing\, the
  development of practical tools for the assessment of concrete structures\
 , the development of design procedures\, and the development of new consti
 tutive models and modeling techniques. Dr. Proestos serves as the Secretar
 y of Joint ACI-ASCE Committee 445\, Shear and Torsion\, and leads a new in
 itiative as Chair of Joint ACI-ASCE Subcommittee 445-F\, Interface Shear. 
 In 2018\, he received the ACI Chester Paul Seiss Award\, and in 2017\, he 
 received the ACI Design Award.
LOCATION:GC B1 10 https://plan.epfl.ch/?room==GC%20B1%2010
STATUS:CONFIRMED
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