KN (for 1 m wide) The self-weight of one culvert side wall is: The total self-weight of the culvert top slab is: A “w”ĭimension of 1 m is added to the calculations to convert the units to kN/m for consistency with national conventions. In addition, the model is always assumed to be in equilibrium so external reactions to loads applied to the structure were assumed to act equal and opposite. The model is assumed to be externally supported by a pinned support on one end and a roller support on the other end. Beam elements in the 2D model are assumed to be centered in the concrete members. The approximate strip method is used for the design with the 1m wide design strip oriented parallel to the direction of traffic.Ī 2-Dimensional (2D) plane frame model is used to analyze the box culvert. Material and design parameters are given in Table.ģ500 mm Modulus Elasticity of Steel Reinforcement, E s 200000 Mpa Modulus Elasticity of Concrete, E c ![]() A typical section of the culvert is shown in Figure. ![]() T bl A t i l ti f th l t i h i Fi M t i l d d i t i i T bl Inside dimensions of the box culvert (SPAN x RISE) The fill height (H) above the culvert are as per the below
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