Combined-type cable dome structure for elliptic plane with unequal-height boundary
2015
The invention discloses a combined-type cable dome structure for an elliptic plane with an unequal-height boundary. The combined-type cable dome structure comprises an outer-ring beam arranged on unequal-height capitals of a lower structure. The outer-ring beam adopts a space-curve form which changes along with the elevation of capitals of the lower structure. The horizontal projection of the outer-ring beam is ellipse. An inner-ring beam is arranged above the middle portion of the outer-ring beam. Inhaul cables and ridge cables are arranged on the outermost ring of the outer-ring beam and the inner-ring beam through a levy-type structure, and inhaul cables and ridge cables are arranged within the outermost ring through a Geiger-type structure. A connecting beam for a balancing cable is arranged on the inner-ring beam additionally, and the balancing cable is arranged between the inner-ring beam and the outer-ring beam additionally. The combined-type cable dome structure can be applied to a structural engineering of which unequal-height horizontal projection of the boundary is an ellipse plane, the structure is forced uniformly, and the stability is strong; node structure is simple, the manufacturing cost is low, and construction is convenient; laying requirements of rigid roofing material can be met.
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