Study on the Structural Floor Design of High-Rise Buildings

2012 ◽  
Vol 256-259 ◽  
pp. 1017-1021
Author(s):  
Ling Huang

There is a high-rise building whose main structure is framework - core tube. In order to meet the requirements for architectural features, the distance between the outer frame and the exterior wall of core tube is relatively small, therefore the floor structure program adopts a thick plate and wide flat beam floor system, and part floors of the upper structure adopt a thick plate and dark beam system. As wide flat beams (dark beams) have a small height and cannot form effective support for the floor, special analysis has been made on floors from the security point of view without considering the role of wide flat beams (dark beams). The floor system of this high-rise building has been analyzed and discussed with regard to bearing capacity, deformation, comfort and other aspects.

2013 ◽  
Vol 671-674 ◽  
pp. 1970-1974
Author(s):  
Rong Bai ◽  
Chuan Qin Yao ◽  
Xue Bai ◽  
Chao Wang

Based on the F2-4 project in Zhujiang New Town of Guangzhou, this paper studies the construction scheme, process principle, technology requirement, etc, of super high-rise core tube copestone and the composite floor of steel composite wide-flat beam of hollow steel tube in order to guarantee the advanced technology, reasonable economy, good quality and excellent performance of the construction scheme. This research could lay a good foundation for the construction of the similar projects in the future.


2008 ◽  
Vol 32 (2) ◽  
pp. 71-85 ◽  
Author(s):  
Inesa Alistratovaitė

The paper deals with issues of high-rise building development and contemporary problems related to the formation of city development vision in Lithuania. The analysis focuses on the possibilities and problems arising in the process of developing the Special Plan of high-rise building arrangement in Klaipėda in the formation of the visual image of the city. The methodology of this Plan is discussed by the author in two papers. The present paper is the first one and analyses two stages of the plan development. The first stage is the analysis of the current situation in Klaipėda and possibilities to introduce high-rise buildings into the city morphostructure. This stage comprises 7 aspects: evaluation of the territory development from the point of view of investment possibilities; historical development of the city structure; hierarchy of values of preserved territories; analysis of the territory planning documents regulating townscape formation; evaluation of visual peculiarities; definition of visual identity zones, analysis and evaluation of important mass view points as well as evolvents of views seen from them. The second stage of developing the Special Plan constitutes efforts to define the conception of high-rise buildings arrangement on a city scale, central part scale and old-town scale. Santrauka Straipsnis skirtas aukštybinės statybos plėtros klausimui ir su tuo susijusioms šiandieninėms miesto plėtros vizijos formavimo problemoms Lietuvoje. Nagrinėjamos Klaipėdos miesto vizualinio įvaizdžio plėtros galimybės ir problemos rengiant Klaipėdos miesto aukštybinių pastatų išdėstymo specialųjį planą (SP). Šio plano metodikai aptarti autorė numatė parengti du straipsnius. Šiame, pirmajame, liečiamos dvi plano rengimo stadijos. Pirmoji – tai esama Klaipėdos miesto būklė, galimybės miesto morfostruktūroje rastis aukštybiniams pastatams; jos aptarimas apima 7 aspektus – miesto teritorijos pagal investicines plėtros galimybes vertinimą; miesto struktūros istorinę raidą; saugomų teritorijų vertybinę hierarchiją; dokumentų sprendinių, turinčių įtakos miestovaizdžių formavimui, analizę; vizualinių ypatumų vertinimą; miesto vizualinio identiteto zonų nustatymą ir svarbiausių masinės apžvalgos taškų bei iš jų matomo vaizdo išklotinių tyrimą ir nustatymą. Antroji plano rengimo stadija – tai aukštybinių pastatų išdėstymo koncepcijos paieškos miesto mastu, centrinės dalies mastu ir senamiesčio mastu.


2012 ◽  
Vol 204-208 ◽  
pp. 2590-2594
Author(s):  
Bin Zhao ◽  
Juan He

In this research, a reduced scale model of the composite high-rise building with steel reinforced concrete column, steel beam and reinforced concrete core tube was designed and tested by using the shake table test technology. The acceleration and displacement of the model were measured during the tests. The cracking pattern and failure mechanism were illustrated. Above the shake table test, the finite element analysis of the test mode was carried out. The main effort of the numerical analysis was focused on the selection of the nonlinear models. Based on the experiment results and the strategy of considering nonlinear property of the beam-column joint and the short beam of the concrete core wall were proposed. It is proved that the proposed strategy is effective and economical for seismic behavior assessment of such composite high-rise building structure system.


2011 ◽  
Vol 378-379 ◽  
pp. 292-296
Author(s):  
Xue Shu Wu ◽  
Wan Li Xue ◽  
Guo Rui ◽  
Xu Qian Zhao ◽  
Gu Li

Seismic response of a high-rise building under rare earthquake is numerically investigated in the paper. The Height of the building is 266m, which goes beyond the limit of 150m in Chinese standard, so nonlinear analysis should be performed to investigate its elasto-plastic behaviors under severe earthquake excitations. In the finite-element model for analysis, beam-column members of the structure are simulated by beam elements, while the core tube is simulated by shell elements. The concrete damage plasticity model is used for concrete members, while the kinematic hardening rule is defined for steel beam-column members. Four sets of earthquake wave, including 3 sets of strong earthquake records and 1 set of artificial wave, are adopted in the analysis. The analysis results show that, under severe earthquakes, steel frame members and steel truss members in the strengthened floors keep elastic. Severe damages are detected in almost all coupling beams in the core tube, as well as shear-walls near strengthened stories, where lateral stiffness would decrease seriously. Through the investigation, it is also found that the largest story drift is less than the maximum allowable value in the Chinese code for seismic design of buildings. So it is concluded that the high-rise building will not collapse when the place is subjected to severe earthquakes. Besides, some design suggestions are proposed according to nonlinear dynamic analysis in the paper.


Author(s):  
Rashad Hajjaj ◽  
Abdulaziz Alhimeidi ◽  
Mohamed Sabbagh ◽  
Abdallah Alatallah ◽  
Danish Ahmed ◽  
...  

The main objective of this paper is to study feasibility of using ultra-lightweight (ULW) slab as an alternative design solution for floor component used in high-rise buildings. The main method is numerical case study by comparing the structural performances of 60-storey building in which floor component designed using one type of ULW called cross laminated timber (CLT) relative to floor component designed using conventional reinforced concrete (RC) slab using ETABS. The structural performances were compared between the two types of floor system including: total drift, inter-story drift, and base reaction which results in smaller frame sections and less reactions for the foundation demands by using ultra-lightweight (ULW). Additional survey to assess the awareness level of the public and engineering professionals about general high-rise building demand and new alternative building materials such as timber and its potential application in Saudi Arabia was also conducted.


2012 ◽  
Vol 204-208 ◽  
pp. 1179-1188
Author(s):  
Ke Jian Ma ◽  
Deng Peng ◽  
Shi Jie Qin

With the development of economy and society, urban construction rose to a new level in China. High-rise and super high-rise building increase rapidly. In the high-rise and super high-rise buildings (H≥150 m), the structural system usually adopts the conventional reinforced concrete, including frame tube structure, tube in tube structure, steel frame with reinforced concrete core tube hybrid structure and tube in tube steel - concrete mixed structure. These traditional structural systems often lead to the problems of fat beam fat column and high expenditure, which is not economic and unfriendly to the environment. This paper not only presents a new type of concrete core wall and prefabricated space steel grid cassette tube in tube structure system, but also discusses the superiority of the new type structure through the innovation and practice of a super high (266 m) five-star hotel and office building integrated engineering construction.


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