Configuration research and model practice on six-bar tetrahedral cylindrical tensioned stringed lattice shells

A novel six-bar tetrahedral tensioned stringed cylindrical lattice shell was proposed based on the structural configuration of the six-bar tetrahedral cylindrical lattice shell which can be assembled by rhombic projection plane six-bar tetrahedral units. A self-balancing structural system is formed with the counterbalance between the horizontal thrust at the support and the tension from the added tensioned stringed part. The internal force distribution of the overall structure is more reasonable. Meanwhile, the advantages of standardized design, industrial production and prefabricated construction are inherited. The configuration of six-bar tetrahedral tensioned stringed cylindrical lattice shell was analyzed. A parameterized modeling program with visualization was developed. Completeness and effectiveness of the parameters were verified. The construction path of the structure was discussed. Based on the test model of six-bar tetrahedral cylindrical lattice shell, a tensioned stringed test model was built by the addition of struts and steel tie rods and the change of bearing properties along span direction from fixed bearing to sliding bearing. Static tests of the model were conducted. Reliability of the structure was verified by the experimental research.