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Structural Monitoring and Maintenance
  Volume 6, Number 1, March 2019, pages 019-32
DOI: http://dx.doi.org/10.12989/smm.2019.6.1.019
 


Influence of dynamic loading induced by free fall ball on high-performance concrete slabs with different steel fiber contents
Ahmed K. Al kulabi and Ali A. Al zahid

 
Abstract
    One way to provide safe buildings and to protect tenants from the terrorist attacks that have been increasing in the world is to study the behavior of buildings members after being exposed to dynamic loads. Buildings behaviour after being exposed to attacks inspired researchers all around the world to investigate the effect of impact loads on buildings members like slabs and to deeply study the properties of High Performance Concrete. HPC is well-known in its high performance and resistance to dynamic loads when it is compared with normal weight concrete. Therefore, the aim of this paper is finding out the impact of dynamic loads on RPC slabs\' flexural capacity, serviceability loads, and failure type. For that purpose and to get answers for these questions, three concrete slabs with 0.5, 1, and 2% steel fiber contents were experimentally tested. The tests results showed that the content of steel fiber plays the key role in specifying the static capacity of concrete slabs after being dynamically loaded, and increasing the content of steel fiber led to improving the static loading capacity, decreased the cracks numbers and widths at the same time, and provided a safer environment for the buildings residents.
 
Key Words
     impact load; flexural capacity; steel fiber; serviceability load; failure pattern
 
Address
Ahmed K. Al kulabi and Ali A. Al zahid: Department of Civil Engineering, University of Kufa, Kufa-Najaf, 54001, Republic of Iraq
 

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