Falling weight impact response of prestressed concrete slabs with manhole

International Conference on Recent Advancements and Effectual Researches in Engineering Science and Technology

Mathews, Sharoan Merin^1 ; Mohanan, Nikhil^2 ; Jose, Manish^1

Department of Civil Engineering, SJCET, Palai, India^1

FEM CFD Research and Development, Kerala, India^2

关键词: AUTODYN;    AUTODYN software;    Civil structure;    Different sizes;    Falling weight impact;    Global terrorism;    Impact loads;    Post analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/396/1/012010/pdf
DOI  :  10.1088/1757-899X/396/1/012010

来源: IOP

【 摘 要 】

Blast and impact resistance structures have become an indispensable requirement for the design of concrete structures due to the prominent danger imposed. The increasing number of accidents and global terrorism on public civil structures pose a serious threat to the infrastructure and human life. It has been seen that prestressing of concrete can improve the impact resistance of the structures. The objective of this paper is to investigate the response of reinforced concrete slabs, prestressed in its transverse direction by steel wires of 7 mm diameter against impact load imposed by a hammer falling from 5 m height tested and calibrated using ANSYS Autodyn software package. The control slab is compared with slabs having opening/cut-out of different aspect ratio and at different positions. Three different sizes for the hole/opening is considered here provided the area of the opening/hole is kept constant. Post analysis, the most optimum size of the hole was found out to be 500 mm x 500 mm and its position was at the edge of the slab.