Abstract
The article presents single-span composite string steel structure. The article discusses the calculation method for the single-span composite string structure when the load is symmetrical, while the string and bottom cable act as absolutely flexible elements. It presents the way the displacements and the shear force in the supports are calculated for the distributed and concentrated loads. Calculations with a pre-tensioned string are provided. The results are compared with the results obtained with the finite element method program. The conclusions present the results obtained.
Highlights
Suspended constructions are some of the most impressive and largest cross-over structures in the world (Gimsing, 1997; Kulbach, 1999)
This case can be applied to innovative structures such as hanging roads or bridges, when the string is used as a rail, etc
Calculations are provided for two load cases: when the load is applied by using cross beams and when the load is transmitted directly to the string
Summary
Suspended constructions are some of the most impressive and largest cross-over structures in the world (Gimsing, 1997; Kulbach, 1999). In addition to reducing the kinematic displacements in the structure when the load is asymmetrical, the string would form a straight line for the transport movement (Yunitskiy, 2019; Linkutė, 2015). The outline of the lower cable forms a parabola (Beivydas, 2018) Such constructions are very complex, to facilitate their design the article below provides a simplified engineering methodology for this design with symmetrical load where the string and the bottom cable represent absolutely flexible elements. In the case of the second load (Figure 6), the load is transferred via the string This case can be applied to innovative structures such as hanging roads or bridges, when the string is used as a rail, etc. This case can be used for bridge or roof deck support on strings
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