Reinforced concrete beams under shock loading, linear and nonlinear response
article
In everyday life structures are regularly damaged in explosions and may even collapse as a result of either directly exerted overpressure or by flying fragments.Not only explo­sions during storage or transport of dangerous substances such as oil and gas (LNG, LPG, etc) are thought of, but also explosions that, under certain conditions, may occur in many seemingly ordinary substances (e.g. milk powder, flour). Many accidents are also caused by collisions, falling objects, etc. The often large, suddenly imposed loads, may lead to considerable stress in the structure, which may cause cracking, plastic yielding and subsequently collapse. In this respect, designing and supervising authorities are facing a problem, about which many questions are still unanswered. Practice is specially interested in the resilience, the permanent deformation and the damage that together determine the criteria for the assessment of the behaviour of a structure. The behaviour of a structure is determined by: the nature and the magnitude of the load, the type of structure (beam, portal, plate, shell, etc), the size of the structure and the material used (steel, reinforced concrete, pre-stressed concrete, timber, plastic). The type of structure determines the nature of the support behaviour: via strain (extension), bending, shear, torsion, etc. With a given type of material the size of the structure determines the strength as well as its stiffness and its mass.
TNO Identifier
267162
Source
Heron, 34(3), pp. 1-73.
Pages
1-73