the rotational friction dampers can be improved the seismic behavior of the steel structures, and they can be reduced the internal forces in the bracing members, columns and the other structural members. in this research, a simple method for modeling and analysis of braced frames equipped by these dampers is proposed. the proposed model describes seismic behavior of dampers very well and it is ...

Damping performs essential function in format of earthquake resistant structures, which lower the change shape when they are subjected to lateral loads or earthquake. In existing study fluid viscous dampers (FVD) used consider response RCC buildings on sloping ground. The important challenge a structure is endure and switch them foundation control story displacement. order make resistant, have ...

The seismic rehabilitation designs of two reinforced concrete school buildings, representative of a wide stock of similar edifices designed under earlier editions of the Italian Technical Standards, are presented in this paper. The mutual retrofit solution elaborated for the two buildings consists in the incorporation of a dissipative bracing system including pressurized fluid viscous springdam...

This paper describes the development of a numerical finite element algorithm used for the analysis of reinforced concrete structure equipped with shakes energy absorbing device subjected to earthquake excitation. For this purpose a finite element program code for analysis of reinforced concrete frame buildings is developed. The performance of developed program code is evaluated by analyzing of ...

Droplet impact dynamics of the shear-thinning fluids on the hydrophobic surfaces have been experimentally studied and compared to the base fluid, water. In this work, hydrogels are prepared by lading water with Polyacrylamide polymer at three loading rates 1, 2, and 3 wt. %. The resultant hydrogel phase behaves as a shear thinning fluid with altered rheophysical properties. The presence of poly...

This paper deals with a dynamic Euler-Bernoulli beam of infinite length subjected to moving concentrated Dirac mass. The relies on foundation composed continuous distribution linear elastic springs associated in parallel uniform Coulomb friction elements and viscous dampers. problem is stated distributional form, the existence uniqueness results are established by means combination $ {\rm{ L}} ...