COMPOSITE LOW VAULT STRUCTURE AND VAULT ERECTION METHOD Russian patent published in 2005 - IPC

FIELD: building, particularly low vault structures for civil and industrial buildings and resource-saving construction methods.

SUBSTANCE: composite vault structure comprises reinforced concrete support girders made as anchor wall integrally formed with support ledge and thin vault members covering the full span length and having ribs rigidly secured to the girders. The girders are connected one to another with tie members formed as paired ropes arranged on lower outer extensions of longitudinal ribs, anchored through orifices made along outer edge of support wall and grouted with fine concrete. Grouting layer is made of structural light-weight concrete and is continuous over the full vault surface. Reinforcing netting is secured on horizontal upper edge thereof. Method of composite vault erection involves forming support girders and vault members with the use of special high-strength and light-weight high-density concrete mixes; simultaneous mounting all vault members in parallel one to another over all spans along with joining all connection members with the use of embedded parts and welding mounting loops; grouting joint seams with cement-and-polymeric filling; fixing and loading paired ropes in groups; simultaneous grouting thereof in vertical joint seams between longitudinal ribs of vault members with fine concrete; performing connection grouting of all vault components after reinforcement netting fixation with the use of light-weight cement-and-polymeric concrete mix.

EFFECT: reduced material consumption, decreased height, increased load-bearing capacity, reduced time, power and labor inputs.

10 cl, 12 dwg