• 제목/요약/키워드: High-rise building

검색결과 1,745건 처리시간 0.033초

Rubber bearing isolation for structures prone to earthquake - a cost effectiveness analysis

  • Islam, A.B.M. Saiful;Sodangi, Mahmoud
    • Earthquakes and Structures
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    • 제19권4호
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    • pp.261-272
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    • 2020
  • Recent severe earthquakes in and around the vital public places worldwide indicate the severe vulnerability of ground excitation to be assailed. Reducing the effect of seismic lateral load in structural design is an important conception. Essentially, seismic isolation is required to shield the superstructure in such a way that the building superstructure would not move when the ground is shaking. This study explores the effectiveness, design, and practical feasibility of base isolation systems to reduce seismic demands on buildings of varying elevations. Thus, static and dynamic analyses were conducted based on site-specific bi-directional earthquakes for base-isolated as well as fixed-based buildings. Remarkably, it was discovered that isolators used in low-rise to high-rise structures tend to significantly decrease the structural responses of seismic prone buildings. The higher allowable horizontal displacement induces structural flexibility and ensure good structural health of the building stories. Reinforcement from vertical and horizontal members can be reduced in significant amounts for BI buildings. Thus, although incorporating base isolators increases the initial outlay, it considerably diminishes the total structural cost.

Field measurement-based wind-induced response analysis of multi-tower building with tuned mass damper

  • Chen, Xin;Zhang, Zhiqiang;Li, Aiqun;Hu, Liang;Liu, Xianming;Fan, Zhong;Sun, Peng
    • Wind and Structures
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    • 제32권2호
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    • pp.143-159
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    • 2021
  • The 246.8-m-tall Beijing Olympic Tower (BOT) is a new landmark in Beijing City, China. Its unique architectural style with five sub-towers and a large tower crown gives rise to complex dynamic characteristics. Thus, it is wind-sensitive, and a double-stage pendulum tuned mass damper (DPTMD) has been installed for vibration mitigation. In this study, a finite-element analysis of the wind-induced responses of the tower based on full-scale measurement results was performed. First, the structure of the BOT and the full-scale measurement are introduced. According to the measured dynamic characteristics of the BOT, such as the natural frequencies, modal shapes, and damping ratios, an accurate finite-element model (FEM) was established and updated. On the basis of wind measurements, as well as wind-tunnel test results, the wind load on the model was calculated. Then, the wind-induced responses of the BOT with the DPTMD were obtained and compared with the measured responses to assess the numerical wind-induced response analysis method. Finally, the wind-induced serviceability of the BOT was evaluated according to the field measurement results for the wind-induced response and was found to be satisfactory for human comfort.

베트남에 진출한 한국·중국·일본 건설기업의 경쟁력 평가 연구 (A Study on the Competitiveness Evaluation of Korean, Chinese, and Japanese Construction Companies in Vietnam)

  • 박환표
    • 한국건축시공학회지
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    • 제21권1호
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    • pp.61-69
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    • 2021
  • 최근 베트남 건설시장 규모는 지속적으로 증가추세이고, 중국, 일본 등 외국 건설기업들이 진출을 확대하고 있다. 따라서 본 연구는 베트남에서 한중일의 건설경쟁력을 비교하기 위하여 베트남에 진출한 한중일의 건설기업과 베트남 건설기업의 설계역량, 시공역량, 건설사업관리역량을 조사한 결과, 일본, 한국, 중국, 베트남 순으로 경쟁력 높다고 도출되었다. 특히 베트남에서 한국의 경쟁력은 초고층건축과 플랜트분야에서 경쟁력이 높게 나타났다. 이를 토대로 우리나라의 건설기업의 베트남 진출시 건설경쟁력 강화방안을 제안하였다.

The ASHRAE Design Guide for Tall, Supertall and Megatall Building Systems

  • Simmonds, Peter
    • 국제초고층학회논문집
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    • 제4권4호
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    • pp.311-318
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    • 2015
  • The ASHRAE Design Guide for Tall, Supertall and Megatall Building Systems was produced in collaboration with the CTBUH. The design guide outlines various tall building mechanical systems that are presently being designed or are planned for the future. Tall commercial buildings in particular present a series of design problems that set them apart from other functions. The Design Guide will be of interest to owners, architects, structural engineers, mechanical engineers, electrical engineers and other specialized engineers and consultants. This design guide addresses design issues for tall commercial buildings, which are very often mixed-use, and commonly consist of low level retail, office floors, residential units, and hotel uses.

Welcome the Challenges and Imaging the Sky Town

  • Cheng, Jiang Huan
    • 국제초고층학회논문집
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    • 제6권3호
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    • pp.271-277
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    • 2017
  • Safety, livability, and efficiency are the three prominent problems of tall buildings, which are also the severe challenges to designers. We proposed the idea of building the sky town to solve these problems, which can be summarized in two sentences, one is tall building multi-storised, and another one is vertical facilities municipal-infrastructurised. The tall building can be horizontally cut into several multi-storey buildings by some large platforms. The platform extends a certain width to block the fire from spreading. Tall buildings are connected together as a group. One of them is a traffic core, which is used for vertical transportation and MEP. It connects to traffic center such as metro, while most of the other tall buildings' cores can be very much released, so as to achieve maximum efficiency of floor usable area and to give good traffic organization. By combining traffic core, platforms, and multi-storey buildings' inner traffic, a transportation network is formed. Finally, we refer to the design of Raffles City Chongqing to make a sketch of sky town.

곤돌라형 외벽 유지관리 로봇의 이동/작업 메커니즘 및 플랫폼 개발 (Development of Gondola-type Building Management Robot Platform and Mechanism for Moving/Tasking on Building Outer-wall)

  • 함영복;박성재
    • 한국정밀공학회지
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    • 제30권4호
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    • pp.375-382
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    • 2013
  • Down through the years, human needs and desires have required a robot system to work at hazardous environments instead. Current painting task is costly and laborious, and it exposes workers to significant health and safety risks. Automation system offers potential improvement in this area and is especially well suited to the outer-wall painting tasks in concrete structures. This paper introduces the result of gondola-type building management robot(G-BMR) platform and mechanism for moving/tasking on building outer-wall for the outer-wall painting. Its technical and economic feasibility are conducted, and it is concluded that developing G-BMR is physically and economically feasible in this research. And we discuss about the future of G-BMR and automation in construction field.

시공단계 활용을 위한 BIM모델의 표현수준에 관한 연구 (A Study on the Expression Level of BIM Model for utilizing in Construction Phase)

  • 노혜라;윤석헌
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2016년도 춘계 학술논문 발표대회
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    • pp.253-254
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    • 2016
  • In the trend of building enlargement, high-rise and irregular shaped building, domestic application of BIM in construction phase is increasing in recent years. BIM that is based on a three-dimensional, requires a specific building expression. Model expression level required for each phase such as design, construction, and maintenance of the construction project can be different. BIM model to apply in practice is difficult because it is not clear to set up the criteria for the expression level of construction BIM model. And it has a limit that is lower productivity in construction project. Therefore, this study considers the way of the improvement and analyzes the application for representation level of construction BIM model through the survey. By analyzing of the survey results, this study will be to present a basis for an appropriate expression level setting of construction BIM model.

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15 Park Row New York City - 120 Years Later, Still Relevant in Contextualism and Sustainability

  • Karahan, Beyhan
    • 국제초고층학회논문집
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    • 제9권1호
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    • pp.61-70
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    • 2020
  • After the 1884 Home Insurance building in Chicago and 1889 Tower building in New York, 15 Park Row became the tallest building in the USA in 1899 and it held this record for nine years. Completed just before the arrival of the 20th century, this building deserves to be recognized for the sophistication of its architecture with respect to contextual understanding of the 19th century historic texture in Lower Manhattan, its uniquely economical floor plans, and its use of natural ventilation and daylight. The compositional techniques using the proportional analysis of its context reflect the highest level of architectural education of its time by its architect Robert H. Robinson. In addition, it also offers a unique glimpse to the state-of-the-art technology of its time regarding its structure, its use of movement systems that was capable of serving 4000 users.

아파트 배치형태에 따른 적정 인동거리와 난방에너지에 대한 연구 (A Study on the Optimal Distance and Heating Energy with relation to Site Planning of Apartment Building)

  • 정두운;최창호;이현우
    • 한국태양에너지학회 논문집
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    • 제23권4호
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    • pp.97-107
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    • 2003
  • Recently, the apartment building has been constructed in large quantities to provide housings due to the gravitation of population towards large cities. However, we're faced with a critical problem of deterioration of our dwelling environment caused by the trend toward high-rise apartment which could be an obstruction in obtaining sufficient sunlight. Therefore, there have been several legislative actions against infringement on the right of sunshine. In the building law, sunshine hours and the minimal separated distance between apartments are regulated as the criteria for the site planning, However, the minimal separated distance was defined without consideration of the parameters like building orientation and thermal effect of the sunshine hours in the site planning for the apartment building. In this study, the sunshine hours and heating energy during the underheated season for various arrangements in site planning are carefully considered and analyzed.

A Methodological Shift in Building Design through Development of Collaborative Design Platforms

  • Schumacher, Jonatan;Naugle, Matthew
    • 국제초고층학회논문집
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    • 제3권4호
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    • pp.279-283
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    • 2014
  • This paper introduces two platforms created by the development team at CORE studio, Thornton Tomasetti's global innovation studio. Collaborative platforms change the way that parties communicate and develop projects. Wikipedia is one of many great examples for a platform that supports collaborative development of a product - the world's largest encyclopedia. In the AEC industry, no such platform exists that can be used for collaborative development of a building project, and hence, information exchange between the parties involved, and modeling programs used in a project is slow and opaque. The platforms introduced in this paper allow for much greater transparency at all stages of the building design process, and hence improve the flow of information between parties involved in the process, both firm-internal and external. While traditionally, the use of a large number of different modeling and analysis platforms is hard to manage by a project team; this paper introduces methods that strengthen the design process by using a multitude of programs needed in the different building design phases.