The article improves the methodological approach to finding best constructive solution for a beam made of welded steel I-beams with variable flange width. An idealized physicalmathematical model construction tapered depending on consumption and changes in geometric characteristics cross-section is described. bending strength conditions are taken as limitations. purpose research was develop an e...

This paper evaluates the effect of slot existence with limited length between flanges and web junction of I-shaped beams at the region of moment connections on vertical force and shear stress distribution in beam flanges and web at connection section in comparison with classical theory of stress distribution. The main purpose of this research is to evaluate the efficiency of the slot in connect...

The detonation processes occurring in a variable cross section detonation chamber are compared with that occurring in a simple, constant cross section tube. The variable cross section chamber is made up of a large tube and two small identical tubes connected on each side through frustums. The simple tube has the same diameter as the small tubes of the variable cross section chamber and the same...

A measurement of the total pp cross section at the LHC at √ s = 7 TeV is presented. In a special run with high-β beam optics, an integrated luminosity of 80 μb−1 was accumulated in order to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t . The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the differential...

A measurement of the total pp cross section at the LHC at √ s = 7 TeV is presented. In a special run with high-β⋆ beam optics, an integrated luminosity of 80 μb−1 was accumulated in order to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t . The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the differentia...

This paper presents a parametric study of steel I- beam with stepped flanges by using finite element analysis. Stepped flange beam is used in structures to decrease the negative bending moments near interior supports that causes failure due to buckling. Steps in the cross section can be achieved by adding cover plates to the beam flanges, changing the size of the hot rolled section, or changing...