Showing papers on "Barrel vault published in 2007"

Assembled roof element particularly intended for a skylight barrel vault

Abstract: Assembled roof element, comprising at least one first light-transmitting profiled plate for the purpose of forming an element supporting the assembled roof element, this profiled plate being manufactured from a composite material; and at least one second plate of a plastic material, which plate is supported by the at least one first plate.

Oblique crossing inclined grid steel-concrete hollow sandwich mesh-like wagon shell and arched roof structure

Abstract: The present invention discloses a kind of obliquely-crossed obliquely-placed grid reinforcement-concrete open-web sandwich reticulated barrel shell and barrel vault roof structure. It is made up by utilizing reinforcement-concrete crossed, obliquely-placed and combined open-web sandwich plate and bending it along span direction according to the curved or parabolic form. As compared with existent technique the invented concrete reduced thickness can be reduced by 30%-50%, its structure self weight can be reduced by 30%-50% and its reinforcement consumption can be reduced by 25%-30%, so that its construction cost also is reduced.

Concrete stresses and strengths for gravity loading in a Roman theatre

Abstract: This paper estimates the stresses due to gravity loading in various elements of a Roman theatre structure chosen for this case study. The Theatre at Beneventum (now called Benevento) was built in the early second century AD. It is one of the most representative examples of the achievement of Roman Empire theatres and is still considerably well preserved. A gravity load analysis, considering both permanent actions and temporary actions, has been performed on key elements of the structure including the walls, barrel vaults and cross vaults, using Finite Element techniques where appropriate. The results of these analyses have been compared with material strengths obtained by testing replicated Roman concrete. The rate of strength gain of Roman concrete is slow relative to that of concrete made with Portland cement, and this study has also enabled an estimate to be made of the time required to cure the concrete before the centring (formwork) could be removed. © 2007 Taylor & Francis Group, London.

Orthogonal spatial truss fabricated bar concrete hollow sandwich lattice drum shell and barrel arch roof structure

Abstract: The invention discloses a meshed barrel shell with hollow lamination of orthogonal mesh steel bar concrete, comprising a hollow lamination board of steel bar concrete (1) bended in circular or parabola. Compared with the prior art, the invention has a small structure conversion thickness and is less than common meshed barrel shell and meshed barrel vault with solid section in a range of 30%- 50%, and the construction weight is decreased of 30%- 50%. The invention has advantages of smaller usage of concrete, lower costs of conversion, better durability, rust-proofing and fire-proofing ability, lower maintenance cost, simple construction art, and fast progress or the like.