Flexural behaviour of external R/C steel fibre reinforced beam-column joints

A softened strut-and-tie macro model able to reproduce the flexural behaviour of<br/>external beam-column joint is presented. The model is specific for concrete with hooked steel fibres (FRC) and it is designed to calculate the flexural response, as load-deflection curve, of a beam-column sub-assemblages. The model considers the presence of a constant vertical load acting on the column and of a monotonically increasing lateral force applied at the tip of the beam.

2/5/20, [stade Bergeyre], championnat de Paris, [football] association, Red Star contre R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59140

2/5/20, [stade Bergeyre], championnat de Paris, [football] association, Red Star contre R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59141

2/5/20, [stade Bergeyre], championnat de Paris, [football] association, Red Star contre R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59143

2/5/20, [stade Bergeyre], championnat de Paris, [football] association, Red Star contre R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59144

2/5/20, [stade Bergeyre], championnat de Paris, [football] association, équipe du R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59145

2/5/20, [stade Bergeyre], championnat de Paris, [football] association, équipe du R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59146

Bertram ou Le château de St-Aldobrand : tragédie en 5 actes / traduite librement de l'anglois du Rév. R.C. Maturin, par MM. Taylor et Ch. Nodier

Titre original : Bertram or the Castel of St Aldobrand

24/10/20, rue Olivier-de-Serres, [football] association, équipe R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 61689

24/10/20, rue Olivier-de-Serres, [football] association, équipe R.C.F. [Racing Club de France] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 61690

Adaptation of an commercially available stabilised R/C helicopter to a fully autonomous surveillance UAV

This paper presents the development of an autonomous surveillance UAV that competed in the Ministry of Defence Grand Challenge 2008. In order to focus on higher-level mission control, the UAV is built upon an existing commercially available stabilised R/C helicopter platform. The hardware architecture is developed to allow for non-invasion integration with the existing stabilised platform, and to enable to the distributed processing of closed loop control and mission goals. The resulting control system proved highly successful and was capable of flying within 40knott gusts. The software and safety architectures were key to the success of the research and also hold the potential for use in the development of more complex system comprising of multiple UAVs.

Tin–osmium cluster formation with a monomeric tin(II) alkyl: the formation, crystal structure and reactivity of [Os3(µ-H)SnR(CO)10], a formal stannyne complex of the osmium triangle {R = C(SiMe3)2C5H4N-2}

The monomeric tin(II) species SnR2{R = C(SiMe3)2C5H4N-2} reacts with [Os3(H)2(CO)10] in hexane to give [Os3(µ-H)SnR(CO)10]1 quantitatively; 1 is the first formal stannyne complex of the triosmium nucleus, in which the picoline nitrogen is coordinated to the tin atom, and which is itself also reactive, being a potential precursor to high nuclearity SnOs clusters.