Study the Effective of Lateral Load on Story Drift in RC Frame Structures
Mahdi Hosseini1, Hadi Hosseini2, Seyed Amin Ahmadi Olounabadi3, Ahmad Hosseini4
1Mahdi Hosseini , Ph.D. Scholar Student in Structural Engineering, Dept. of Civil Engineering, Aligarh Muslim University (AMU), Aligarh, Uttar Pradesh, India.
2Dr. Hadi Hosseini, Ph.D. Aerospace Engineering, working in International Earthquake Research Center of America (IERCA).
3Seyed Amin Ahmadi Olounabadi, Ph.D. Scholar Student in Computer Science and Engineering, Department of Computer Science and Engineering, Jawaharlal Nehru Technological University Hyderabad (JNTUH), Hyderabad, Telengana, India.
4Ahmad Hosseini, Graduate Student in Mechanical Engineering, Department of Mechanical Engineering, Kakatiya University ,Warangal, Telengana, India.
Manuscript received on April 30, 2015. | Revised Manuscript received on May 02, 2015. | Manuscript published on May 15, 2015. | PP: 32-43 | Volume-3 Issue-6, May 2015. | Retrieval Number: F0861053615/2015©BEIESP
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Abstract: Story drift is defined as the difference in lateral deflection between two adjacent stories. Lateral deflection and drift have three effects on a structure; the movement can affect the structural elements (such as beams and columns); the movements can affect non-structural elements (such as the windows and cladding); and the movements can affect adjacent structures. Without proper consideration during the design process, large deflections and drifts can have adverse effects on structural elements, nonstructural elements, and adjacent structures. Drift problem as the horizontal displacement of all tall buildings is one of the most serious issues in tall building design, relating to the dynamic characteristics of the building during earthquakes and strong winds. Drift shall be caused by the accumulated deformations of each member, such as a beam, column and shear wall. In this study 20 story building with RC shear wall analysis is done with changing structural parameters to observe the effect on the drift (lateral deflection) of the tall building due to both wind and earthquake loading. There are three major types of structures were identified in this study, such as rigid frame, coupled shear wall and wall frame structures. So lateral forces due to wind or seismic loading must be considered for tall building design along with gravity forces vertical loads. Tall and slender buildings are strongly wind sensitive and wind forces are applied to the exposed surfaces of the building, whereas seismic forces are inertial (body forces), which result from the distortion of the ground and the inertial resistance of the building. These forces cause horizontal deflection is the predicted movement of a structure under lateral loads and The structural prototype is prepared and lots of data is been collected from the prototype. All the aspects such as safety of structure in shear, moment and in story drift have been collected. Main problems that would be arising due to earthquake in the structure are story drift and deflection of the building due to its large height and also torsion and others, so if the structure is proved to be safe in all the above mentioned problems than the structure would be safe in all cases in respect earthquake.
Keywords: Story drift, wind load, frame structure, Seismic Load, shear wall.