Abstract In the present paper, design of a steel warehouse structure was investigated. After establishing base sections for beams and columns through ultimate resistance buckling strength, an optimization procedure applied to beam-to-column connection. Three types connections were studied: bolted connection with end plate, welded web flange angles. The detailed analysis components performed hel...

The Rankin-Cohen bracket of two Eisenstein series provides a kernel yielding products of the periods of Hecke eigenforms at critical values. Extending this idea leads to a new type of Eisenstein series built with a double sum. We develop the properties of these series and their nonholomorphic analogs and show their connection to values of L-functions outside the critical strip.

Cubic interactions are considered in 3 and 7 space dimensions, respectively, for bosonic membranes in Poisson Bracket form. Their symmetries and vacuum configurations are discussed. Their associated first order equations are transformed to Nahm’s equations, and are hence seen to be integrable, for the 3-dimensional case, by virtue of the explicit Lax pair provided. The constructions introduced ...

The main challenge for realizing competitive hybrid steel-FRP structures, such as bridges, carparks, is to make the steel and FRP components work together. In this study shear resistance, stiffness ductility of three types demountable bolted connectors are examined. Two blind-bolted M20 a novel, injected steel-reinforced resin (SRR) connection selected perform push-out experiments in web-core d...

Bolted connections are widely used in the machine tool manufacturing and equipment. As it is well known, bolt preload will be attenuated by vibration of tools, which degenerate working life tools. In this paper, a new experimental design method introduced into study on attenuation: quadratic general rotary unitized design. The dynamic analysis bolted connection carried out based finely fragment...

Abstract Currently, many buildings are constructed with precast concrete methods. However, they still use the cast in-situ method, especially for beam and column connection system where there some obstacles in casting process possibility of installing reinforcement bars on site not following design. Hence, is potential structural failure that part connection. To reduce constraints, it proposed ...