Comparison of response changes resulting from actions along orthogonal horizontal components of earthquake Shtabngasht

Method in time history analysis of buildings is usually the horizontal component Shtabngasht and vertical arthquake in two directions perpendicular to the main building extensions Effects are presented and responses made in the design criteria for members Factors. These responses accelerograms orthogonal horizontal angle Than the main axes of the building, they will change. In this article a building Regular steel in the plan and elevation, and onlinear dynamic method in Taking seven Shtabngasht analysis and critical angle and the ratio increased Replies Has been set. Findings of the critical angle varies with changing ShtabngashtIs. The mean angle of 22.5 degrees and the crisis in the column on the beams 90 degrees Is obtained and the responses to about 73 % increase shown. Also Increased intensity in the nonlinear behavior of earthquakes and increased Saz·hyy members reviewed Been changed and the results indicates the critical angle and increased ratio Replies accumulation of earthquake intensity is increased.