ICCESD Islam et al 2012 Tall building.pdf (original) (raw)
Related papers
2017-01 - Conference - SCESM - Effect of Curtailment of Shear Walls for Medium Rise Structures.pdf
Shear wall systems are one of the most commonly used lateral load resisting mechanisms employed in medium rise and high rise buildings. The lateral load resistance of a dual system comprising of moment resisting frame (MRF) and shear wall is studied. Six different cases of shear wall curtailment are considered by terminating the shear walls at intermediate heights of a G+9 storey building. The models are subjected to lateral and gravity loadings in accordance with IS provision and Response Spectrum Analysis (RSA) is carried out. The main findings of this paper led us to conclude that contrary to the common belief, curtailment of the shear walls in the top floors is not necessarily detrimental to the performance of the structure. Also the optimum level of shear wall curtailment, as suggested by Nollet & Smith, 1993 and Atik et al, 2011 has been discussed.
2017-01 - IJCTA -Effect of Curtailment of Shear Walls for Medium Rise Structures.pdf
Shear wall systems are one of the most commonly used lateral load resisting mechanisms employed in medium rise and high rise buildings. The lateral load resistance of a dual system comprising of moment resisting frame (MRF) and shear wall is studied. Six different cases of shear wall curtailment are considered by terminating the shear walls at intermediate heights of a G+9 storey building. The models are subjected to lateral and gravity loadings in accordance with IS provision and Response Spectrum Analysis (RSA) is carried out. The main findings of this paper led us to conclude that contrary to the common belief, curtailment of the shear walls in the top floors is not necessarily detrimental to the performance of the structure. Also the optimum level of shear wall curtailment, as suggested by Nollet & Smith, 1993 and Atik et al, 2011 has been discussed.
Code of Pakistan (BCP). Inclusion of shear walls adds stiffness to structure and aids in reducing lateral drift under seismic loads. Important aspects concerning design of shear walls are its placement in structure and the cross section (i.e. width to thickness ratio) keeping in view torsional stresses, economy and ductility of structure. A comparative study is carried out using ETABS software by varying location and cross section of shear wall for Stock Exchange Building, Islamabad. Maximum lateral drift, storey drift, base shear forces and time period of structure are important parameters considered. Response spectrum analysis has been carried out on 4 cases depending upon location of shear wall and best possible case is selected which is finally compared with actual building. It has been concluded that original location with 6in thick shear wall could have been more economical and ductile than existing 12in thick wall keeping in view the allowable lateral drift and base shear forces.
Study on Dynamic Behavior of Shear Walls in Vertically Irregular Building Frames
International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022
According to recent studies, the shear wall's construction is the most effective weight-restraining system in use today. Shear walls are of the most attainable and consequently usually utilized horizontal burden opposing parts in elevated structures. It is provided by progressing through the design levels starting at the foundational level. The extent of the ongoing work is to determine the ideal location of the shear walls in plans with erroneous shear wall placements, such as I frame, L packaging, and T frames for various zones in G+17 stories with each story level being 3.2 m. Shear walls are provided at the design's corners and edges. Additionally, the impact of seismic zone results according to IS CODE 1893(Part1): 2016 has been shown. Utilizing the striking assessment and plan programming ETABS 18.1.0, a novel reaction range investigation is done as part of the seismic assessment. Seismic execution of the design has been analyzed considering specific, for instance, story evacuating, Story float, Story Shear, Base shear.
IRJET- "Effective Location of Shear Wall on Performance of Building Frame Subjected to Lateral Load"
IRJET, 2020
The practice prior to the 1960s was to design buildings mainly for gravitational loads and to verify the adequacy of the safety structure against side loads It has been set up that the plan of a multi-story building is represented by side loads and ought to be the planner's principle worry to give sufficient security to the structure against side loads. Many existing RC buildings located in seismic areas are lacking to withstand earthquakes. Insufficient lateral resistance and poor reinforcement details are the main reasons for inadequate seismic performance. The shear wall system is one of the most commonly used side load resistance techniques for skyscrapers. The shear walls have a very high resistance and rigidity in the plane, which can be used simultaneously to withstand large horizontal loads and gravity. In tall buildings, it is very important to ensure adequate lateral rigidity to withstand lateral loading. The objective of this project is to determine the solution for the position of the shear wall in multi-storey buildings. To this end, four different models of buildings of eight floors each were considered, namely a model without a cutting wall and three others with walls cut in different areas. The models are studied in the four zones to compare the lateral displacement and the transfer of the load to various structural elements with different positions of the shear wall. The seismic load is calculated according to IS: 1893-2002 (Part 1), the various parameters such as the response reduction factor, the importance factor, the zone factor are taken from IS: 1893-2002. (Part 1) and apply to a building located in Zone II, Zone III, Zone IV and Zone V. Buildings are modeled using the non-linear ETAB software v 17.0.1. Providing shear walls in suitable positions substantially reduces displacements due to earthquakes. Therefore, the accounting separation wall in a building will form an efficient lateral force resistance system. Finally, I concluded that the small size of the shear wall is no more effective than the large size of the shear wall to control lateral movement in buildings with 10 or more than 10 floors