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SUMMARY:Challenges in the structural assessment of transfer slabs for shea
 r
DTSTART:20260925T121500
DTEND:20260925T133000
DTSTAMP:20260924T215319Z
UID:4861a2266c8cb687331f642d4a72f0ff994717c896e8ef3c75b344ae
CATEGORIES:Conferences - Seminars
DESCRIPTION:Robert Vollum\, Professor of Structural Concrete\, Imperial Co
 llege London.\nAbstract\nIn the UK\, the use of reinforced concrete transf
 er slabs in multi-storey residential buildings became commonplace in the e
 arly 2000’s following the widespread adoption of elastic finite element 
 analysis for the design of reinforced concrete slabs. In the absence of pu
 blished design guidance\, engineers had no alternative but to follow their
  engineering judgement when applying codified design rules for shear and f
 lexure to the design of transfer slabs. Examination of the existing UK bui
 lding stock shows wide variations in the thickness of transfer slabs with 
 relatively thin transfer slabs without shear reinforcement seemingly commo
 n. These structures have come under the spotlight in the UK following the 
 2022 building safety act which requires a safety case report to be written
  for all existing residential buildings over 18 m high. The talk will exam
 ine the some of the issues involved in assessing the failure load of trans
 fer slabs in shear. A key issue is shown to be the transition between line
 ar and punching shear failure. Comparisons will be made with the behaviour
  of one-way spanning bridge decks subject to concentrated loading.\n\nBiog
 raphy:\nRobert began his career as a structural engineer with Arup Associa
 tes in 1982 before completing an MSc in Structural Steel Design at Imperia
 l College in 1986-87. He worked at Ove Arup and Partners before returning 
 to Imperial College in 1991 as a lecturer\, later earning a PhD on reinfor
 ced concrete beam column joints. Promoted to full professor in 2020\, his 
 research spans all aspects of reinforced concrete design\, with emphasis o
 n shear in beams and slabs\, restraint induced cracking\, and reinforcemen
 t detailing\, with notable contributions to Eurocode 2: 2023. He is also a
 n academic editor for Structural Concrete.\n\n 
LOCATION:GC B1 10 https://plan.epfl.ch/?room==GC%20B1%2010
STATUS:CONFIRMED
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