scholarly journals Optimum Shape and Position of Outrigger System for High Rise Building under Earthquake Loading

The advancement of high rise building has been increasing on a large scale. In tall structures shear wall often resisted the lateral load induced by wind and earthquake but as the building height increases the stiffness of the structure reduces. To provide sufficient lateral stiffness of the structure implementation of outrigger system between the shear walls and peripheral columns is often used. The aim of this study is to identify the optimum shape of outrigger belt truss in tall buildings under earthquake load condition. A thirty storey with single belt truss, forty five storeys with two belt trusses and sixty storey with three belt trusses structure was investigated with three different shape outrigger belt truss that is X, V and N. The optimum location by providing single belt truss at 10th story, 15th story and at top story in thirty story building is considered in the analysis. From the analysis a comparative study are made with and without variation of shape of outrigger with belt truss with parameters likes storey displacement and storey drift under earthquake loading and get a optimum position of outrigger belt truss for thirty storey building with single belt trusses placing at different locations.

2020 ◽  
Vol 8 (5) ◽  
pp. 3798-3803

Generation is living in a time where in approx. 1.8 million people in India are homeless out of which 52% are based in town. Now a day’s India is heavy populated city in India total 0.15% of the country's total population is homeless. However despite of the explosion in construction activities, the scenario on the housing sector remains far from acceptable. The construction of structure are more composite due to growing human enterprise and the construction industry need to respond to the exceptional challenges presented in front in terms of construction period, economically and durability resulting in affordable residence opportunities for current generation. There is a technology which is capable to overcome the problem the technology is mivan framework technology. Mivan technology is mainly used to construct the tall structures. In this technology we used concrete wall instead of masonry wall. The present paper focuses on the context the use of MIVAN technology for super high rise building and check the seismic response for different shapes i.e. Rectangle Shape, C shape, L shape and I shape of high rise building having irregularity were analyzed by Response spectrum Method using Etab software


2021 ◽  
Vol 933 (1) ◽  
pp. 012001
Author(s):  
M F Effendi ◽  
I F Ridzqo ◽  
S W Dharmatanna

Abstract High-rise buildings in big cities are crucial for business, economic, educational, residential, and entertainment activities in recent times. The technology discoveries in various fields that support high-rise building construction such as structure, mechanical, electrical, and materials have opened up opportunities for comfortable and environmentally safe architectural work. The first milestone of high-rise building construction knowledge in Indonesia was the completion of the thirteen-floors Sarinah retail building in 1967. Indonesia, especially in Jakarta, then experienced rapid growth of high-rise buildings construction. However, there is limited research on the development of high-rise building designs in Indonesia, especially from an architectural design perspective. It leads to the lack of literature on high-rise building design in Indonesia. By utilizing a publicly accessible database from the Council of Tall Buildings and Urban Habitat and recent literature called Designing Tall Building by Mark Sarkisian, this paper explores the design development of high-rise buildings in Jakarta from time to time in the aspects of architecture, structure and sustainability.


In connection with the large-scale development of high-rise building projects recently in Russia and abroad and their significant energy consumption, one of the main principles in designing is the use of effective energy-saving technologies. Also, important aspects are reducing energy consumption and neutralizing the environmental impact of tall buildings. The most promising areas in the field of integration of solar modules (planar and concentrating) in the construction of buildings are development of BIPV technologies (roofing, film, facade materials), the integration of solar energy concentrators that do not require biaxial tracking (medium and low concentrations) on the facades and roofs of buildings (parabolic concentrators, lenses, and Fresnel mirrors), integration of highly concentrated modules on the roofs of buildings.


2018 ◽  
Vol 33 ◽  
pp. 01007
Author(s):  
Ildar Narimanovich Sabitov ◽  
Dilara Radikovna Kudasheva ◽  
Denis Yaroslavovich Vdovin

The article considers fundamental steps of high-rise architecture forming stylistic tendencies, based on C. Willis and M. A. Korotich’s studies. Crystallographic shaping as a direction is assigned on basis of classification by M. A. Korotich’s. This direction is particularly examined and the main high-rise architecture forming aspects on basis of natural polycrystals forming principles are assigned. The article describes crystal forms transformation into an architectural composition, analyzes constructive systems within the framework of CTBUH (Council on Tall Buildings and Urban Habitat) classification, and picks out one of its types as the most optimal for using in buildings-crystals. The last stage of our research is the theoretical principles approbation into an experimental project of high-rise building in Ufa with the description of its contextual dislocation aspects.


2015 ◽  
Vol 5 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Viktor P. GENERALOV ◽  
Elena M. GENERALOVA

The current questions of prospects of modern cities development are viewed in the light of steady growth of population and urbanization connected with enhancement of cities role in social development. The problem of urban densification and the prospectivity of large cities vertical growth are considered. China practice is analyzed because this state is acknowledged global leader in the matter of high-rise building and its achievements can be useful for the Russian Federation. The article concerns activities of the Council on Tall Buildings and Urban Habitat (CTBUH) researching high-rise building. Modern approaches to highrise buildings typology are examined, their main point is defined as mini-city in city.


Computation ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 47
Author(s):  
Gokhan Kirkil ◽  
Ching-Long Lin

A high-resolution large eddy simulation (LES) of wind flow over the Oklahoma City downtown area was performed to explain the effect of the building height on wind flow over the city. Wind flow over cities is vital for pedestrian and traffic comfort as well as urban heat effects. The average southerly wind speed of eight meters per second was used in the inflow section. It was found that heights and distribution of the buildings have the greatest impact on the wind flow patterns. The complexity of the flow field mainly depended on the location of buildings relative to each other and their heights. A strong up and downflows in the wake of tall buildings as well as large-scale coherent eddies between the low-rise buildings were observed. It was found out that high-rise buildings had the highest impact on the urban wind patterns. Other characteristics of urban canopy flows, such as wind shadows and channeling effects, are also successfully captured by the LES. The LES solver was shown to be a powerful tool for understanding urban canopy flows; therefore, it can be used in similar studies (e.g., other cities, dispersion studies, etc.) in the future.


In connection with the large-scale development of high-rise building projects recently in Russia and abroad and their significant energy consumption, one of the main principles in designing is the use of effective energy-saving technologies. Also important aspects are reducing energy consumption and neutralizing the environmental impact of tall buildings. The most promising areas in the field of integration of solar modules (planar and concentrating) in the construction of buildings are development of BIPV technologies (roofing, film, facade materials), the integration of solar energy concentrators that do not require biaxial tracking (medium and low concentrations) on the facades and roofs of buildings (parabolic concentrators, lenses, and Fresnel mirrors), integration of highly concentrated modules on the roofs of buildings.


2011 ◽  
Vol 6 (6) ◽  
pp. 558-567
Author(s):  
Kenichi Ikeda ◽  

Recently the fires in which super high-rise building collapsed occurred relatively frequently in overseas countries. The following three reasons can be thought to the question why fire led to the collapses of the buildings: failure of first-aid fire fighting, lack of capabilities of structural member of fire compartment for preventing spread of fire, and lack of fire-resistive performance of building or its structural member. If all these conditions are met, building collapses. The second reason mentioned above all is regarded as an important factor for promoting spread of fire. Especially, defectiveness of the interlayer compartment causes upward fire spread, makes fire fighting activities from the floor above difficult, and constitutes a primary factor to make the fire large-scale. In the case of super high-rise building, lack of capabilities for preventing upward fire spread on typical floor constitutes a decisive factor in making fire extensive, because such building normally consists of continuous typical floors on the same plane surface. To prevent the upward fire spread, it is important to use higher spandrel for exterior wall of building and to construct it without fault. The height of spandrel varies depending on the intended use of the building and the shape of openings, but the height of about 1.2 m to 2.0 m is needed. In Japan in many cases the height of spandrel of a super high-rise building is around 90 cm. Using the spandrel of this size, delay of upward fire spread can be expected to some degree, but not enough to complete prevention. In addition, to prevent collapse of a super high-rise building by upward fire spread, it is indispensable to equip the system for first-aid fire fighting and use the structural members resistant to heating of fire.


2011 ◽  
Vol 71-78 ◽  
pp. 2836-2839
Author(s):  
Hui Xia Xiong ◽  
Chang Yong Wang

The dynamic property of a high-rise building structure and time-history analysis under earthquake were analyzed by using the finite element program ANSYS. A modal analysis of the tower was conducted and the first 20 frequencies and modal shapes were obtained. The displacements and inner force under the earthquake were calculated. The result showed that the structural stiffness was enough to sustain earthquake load; and the stiffness distributed equally. These results can provide reliable basis for structural design.


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