TY - GEN
T1 - Numerical modelling of slab-column concrete connections at elevated temperatures
AU - Al Hamd, Rwayda
AU - Gillie, Martin
AU - Wang, Yong
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Flat slab-column concrete frames are an economical type of concrete building. The main advantages of this type of frame structure are that they are easy to construct, relatively cheap to build and offer flexible column arrangement. However, they are susceptible to a type of failure known as "punching shear", where columns "punch" through slabs. This is a particularly dangerous type of failure as it occurs suddenly. Punching shear occurring at high temperatures, such as in fire, is an obvious concern. This condition has been studied experimentally, but to date, there has been a very little numerical investigation of the topic. This paper presents a numerical study of the mechanics of punching shear failure at elevated temperatures, with a focus on the role of load induced thermal strain (LITS), which is shown to explain apparently anomalous experimental results.
AB - Flat slab-column concrete frames are an economical type of concrete building. The main advantages of this type of frame structure are that they are easy to construct, relatively cheap to build and offer flexible column arrangement. However, they are susceptible to a type of failure known as "punching shear", where columns "punch" through slabs. This is a particularly dangerous type of failure as it occurs suddenly. Punching shear occurring at high temperatures, such as in fire, is an obvious concern. This condition has been studied experimentally, but to date, there has been a very little numerical investigation of the topic. This paper presents a numerical study of the mechanics of punching shear failure at elevated temperatures, with a focus on the role of load induced thermal strain (LITS), which is shown to explain apparently anomalous experimental results.
KW - FEM
KW - Fire
KW - LITS
KW - Load induced thermal strain
KW - Punching shear
UR - http://www.scopus.com/inward/record.url?scp=85050007825&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85050007825
T3 - IABSE Conference, Vancouver 2017: Engineering the Future - Report
SP - 3374
EP - 3376
BT - IABSE Conference, Vancouver 2017
PB - International Association for Bridge and Structural Engineering (IABSE)
CY - Vancouver
T2 - 39th IABSE Symposium in Vancouver 2017: Engineering the Future
Y2 - 21 September 2017 through 23 September 2017
ER -