Abstract
A fully assembled ridge-tube threading cable with annular-struts cable dome (FRASCD) is proposed, based on the challenges of easy relaxation of ridge cables and the large number of diagonal cables in a cable dome structure. A scaled cable dome model with a span of 10 m and a rise-span ratio of 1/10 is designed and fabricated. The static performance under different vertical loads is investigated by static loading test, and the variation laws of internal forces, displacements, and strain of the structure are obtained; simultaneously, the theoretical calculation formulas of the structure are proposed. The research results verify the rationality and feasibility of the FRASCD, and the innovative FRASCD has good rigidity, stability, and load-bearing capacity and has good resistance to uneven load. The ridge-tube threading cable (RTC) can limit the relaxation of the ridge cable to about 10% and improve the mechanical properties of the FRASCD, and the theoretical calculation formulas proposed can accurately calculate the internal forces and predict the ultimate bearing capacity of FRASCD, which can lay the foundation for future engineering applications.
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