scholarly journals Comparative analysis of global stability of the typical structural systems of multi-storey steel buildings

2012 ◽  
Vol 10 (1) ◽  
pp. 85-96
Author(s):  
Aleksandra Cilic ◽  
Milisav Damnjanovic ◽  
Danijela Djuric-Mijovic

The paper presents global stability comparative analysis of two distinctive structural systems for one 25 - storey high steel building. These are the system with rigid and the system with hinged joint connections between beams and columns in the steel structure. The analysis focuses on the basic structure which was designed only to carry vertical loads, and on the corresponding structure which was stabilized with vertical bracings in the fa?ade walls. Additionally, the paper shows several intermediate steps in the designing of stabilized systems. Static and dynamic design of the relevant structural systems, as well as the control of stress, deformation and stability under the seismic forces of seismic intensity VIII, was done on a computer, on the 3D computation models using Finite Element Method.

2014 ◽  
Vol 501-504 ◽  
pp. 936-939 ◽  
Author(s):  
Chong Jie Wang ◽  
Jia Nan Li

Steel building construction is an important aspect of architecture system in the world. With the rapid development of the steel industry, contemporary steel housing in many developed countries presented dominant position in the market. In this paper, the advantages of steel structure in sustainability, strength, appearance and other aspects are summarized. Also, the application in residential buildings are analyzed, especially in green buildings. Furthermore, a study on the construction of steel building of I-Magic Cube in Shandong Jianzhu University, China are investigated and discussed. And in the example of Shandong Jianzhu Universitys "I-magic Cube", the construction of steel buildings and steel housing and other aspects are analyzed and discussed.


2011 ◽  
Vol 52-54 ◽  
pp. 773-776
Author(s):  
Wei Chen ◽  
Li Jie Duan ◽  
Yu Chun Cai

The steel building system of residence project has more advantage in environment protection and project management than the traditional residence project construction. The main steel structure residence components can be manufactured in the green construction base as the manufacturing industry. The key issue to realize the green construction model of steel building system of residence project is to apply with a suitable model of green construction base. This paper introduced four types of green construction base which are different levels related with project, enterprise, industry and region to combine construction industry with manufacturing. The TOPSIS method was applied to evaluate and analyze to figure out the optimization model of green construction base in steel building system of residence project.


2013 ◽  
Vol 405-408 ◽  
pp. 1204-1207
Author(s):  
Wei Jun Yang ◽  
Yao Li

t is adopted the CEB-FIP (1990) shrinkage and creep model for analysis in three different structure by making a comparative analysis of the existing shrinkage and creep model. The influence law of different structure is obtained. It is shown that the hybrid structure system of concrete structure and steel structure can coordinate both force performance and make it is more consistent with design value.


2015 ◽  
Vol 22 (s1) ◽  
pp. 30-34 ◽  
Author(s):  
Dashan Dong ◽  
Jin Li ◽  
Yuanyuan Teng

Abstract Quayside container crane is a kind of large dimension steel structure, which is the major equipment used for lifting container at modern ports. With the aim to ensure the safety and reliability of the crane under seismic loads, an anti-seismic device is designed. To validate the efficiency and reliability of the anti-seismic device, elastic-plastic time history analysis under rare seismic intensity is carried out. And the results of elastic-plastic time history analysis when the crane installed anti-seismic device and uninstalled the device are compared.


2011 ◽  
Vol 378-379 ◽  
pp. 775-779
Author(s):  
M. Mirtahery ◽  
Zoghi M. Abbasi

Since Ronan Point tower local collapse in UK in 1968, progressive collapse phenomenon in structures attracted more attention for civil engineers all over the world so there were no useful researches and manual codes related to progressive collapse designing before. Progressive collapse occurs when loading pattern, boundary condition and resisting path changed, so critical elements undergo excessive unpredicted loading. We cannot omit reason of collapse as well as prevention of distribution of it that cause progressive collapse. Also, we cannot predict exact location of collapse beginning, so we should generalized design guides to whole or part of structures elements based on risk analyzing. Also we can use load carrying element removal scenario for critical elements. To prevent progressive collapse, structural systems require to having a well-distributed, redundant lateral load resisting system and ductile connections capable of undergoing large inelastic rotations without failing. There are some new guides and criteria for elements and connections to be designed to resist progressive collapse. Depends on required accuracy, importance of the buildings and acceptable risk level, the analysis methodologies ranged from linear to nonlinear with static and dynamic approaches. In this paper, codes and researches recommendations to resist progressive collapse for steel structures are presented, classified and compared. Also, applicable design methods based on codes and some retrofitting methods are summarized.


2011 ◽  
Vol 17 (3) ◽  
pp. 348-356 ◽  
Author(s):  
Mutlu Seçer ◽  
Özgür Bozdag

Seismic structural design of X-braced steel buildings using life cycle cost analysis aims to reveal the most appropriate structural solution for both satisfying economic aspects and earthquake resistant design code requirements among a number of variant solutions accounting architectural concerns. In this study, five storey X-braced steel building with three different X-bracing configurations is designed using various base shear values and the total cost of each design of three configurations is calculated for different earthquake intensities. Initial costs and the cost of the expected damages caused by future earthquakes are determined for each X-bracing configuration. The maximum interstorey drift ratio is selected as seismic performance parameter for satisfying earthquake code demands and evaluated through nonlinear static analysis. The optimum X-bracing configuration is determined by using the balance between the initial cost and the life-time earthquake damage cost. Santrauka Pasitelkus gyvavimo ciklo kainos analizę, plieninių konstrukcijų pastatų su kryžminiais ryšiais seisminio konstrukcijų projektavimo tikslas – rasti tinkamiausią konstrukcinį sprendimą, kuris atitiktų ekonominę pusę, ir žemės drebėjimui atspariųstatinių projektavimo kodekso reikalavimus, kai, atsižvelgiant įarchitektūrines sąsajas, yra daugybė sprendimų variantų . Šiame tyrime, naudojant įvairias pagrindų šlyties jėgų reikšmes, projektuojamas penkiaaukštis plieninių konstrukcijų pastatas su trimis skirtingais kryžminių ryšių pavidalais ir kiekvienam atvejui iš trijų pavidalų apskaičiuojama bendroji kaina, esant skirtingo stiprumo žemės drebėjimui. Pradinė kaina ir numatomos bū simų žemės drebėjimų padaryto apgadinimo kaina nustatoma kiekvienam kryžminių ryšių pavidalui. Siekiant laikytis žemės drebėjimų kodekso reikalavimų, kaip seisminių charakteristikų rodiklis pasirenkamas didžiausias tarpaukštinės slinkties santykis, kuris įvertinamas naudojant netiesinę statinę analizę. Optimalus kryžminių ryšių pavidalas nustatomas subalansuojant pradinę kainą ir per visą gyva-vimo trukmę žemės drebėjimų padarytos žalos kainą.


1996 ◽  
Vol 23 (3) ◽  
pp. 727-756 ◽  
Author(s):  
Robert Tremblay ◽  
Andre Filiatrault ◽  
Michel Bruneau ◽  
Masayoshi Nakashima ◽  
Helmut G. L. Prion ◽  
...  

Past and current seismic design provisions for steel structures in Japan are presented and compared with Canadian requirements. The performance of steel framed structures during the January 17, 1995, Hyogo-ken Nanbu earthquake is described. Numerous failures and examples of inadequate behaviour could be observed in buildings of various ages, sizes, and heights, and braced with different structural systems. In moment resisting frames, the damage included failures of beams, columns, beam-to-column connections, and column bases. Fracture of bracing members or their connections was found in concentrically braced frames. The adequacy of the current Canadian seismic design provisions is examined in view of the observations made. Key words: earthquake, seismic design, steel structures.


Seismic analysis of structural systems with floor diaphragms has been a requisite in the recent past. The duty of a structural engineer is to be prudent about the behavior of every structural system adopted. Amongst the structural systems that are adopted world over, diaphragm with rigid and semi-rigid floor plate are adopted widely in the analysis. This research focuses on the backstay effect i.e. podium structural interaction with the tower area and consideration of retaining wall as increment of lateral stiffness as specified in latest tall building code IS6700:2016 for low and high rise structures. In the current study models were prepared with low to high rise storeys with rigid and flexible diaphragms considering backstay diaphragm placing tower at center and corner. The models were subjected to seismic forces; response spectrum along with the combination of the gravity loads. The structural responses like natural periods, base shear, displacement and inter storey drift were also studied.


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