• Title/Summary/Keyword: rise of China

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Development and Practice of Performance-Based Seismic Design of High-Rise Buildings in China

  • Xiao Congzhen;Li Jianhui;Li Yinbin;Qiao Baojuan;Sun Chao;Wei Yue;Ding Jiannan
    • International Journal of High-Rise Buildings
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    • v.12 no.3
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    • pp.209-214
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    • 2023
  • Seismic performance-based design methods are widely used in the field of engineering. This paper introduces the current status of seismic performance-based design methods for high-rise buildings in China, and summarizes latest advancements in seismic performance-based design methods for high-rise buildings in China, with a focus on the design methods based on predetermined yield mode and the design methods based on member ductility requirements. Finally, the development direction of seismic performance-based design method for high-rise buildings is prospected.

Significant Progress in Construction Equipment of Super High-Rise Building

  • Zhang, Kun;Wang, Hui;Wang, Kaiqiang;Cui, Jian;Chen, Bo;Li, Di
    • International Journal of High-Rise Buildings
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    • v.7 no.3
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    • pp.243-253
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    • 2018
  • The construction of rapid developing super high-rise buildings constantly faces great challenges and the innovation of construction equipment is a focus of these challenges. In this paper, three new inventions including the operation platform, tower crane and hoist are put forward around two of the most important issues of super high-rise building construction: vertical transportation and operation environment. Study background, composition of the equipment, working principles and key technologies are introduced in sequence. In the end, the paper summarizes the main problems in the further development of construction equipment.

Research on Relationship between Natural Vibration Periods and Structural Heights for High-rise Buildings and Its Reference Range in China

  • Xu, Peifu;Xiao, Congzhen;Li, Jianhui
    • International Journal of High-Rise Buildings
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    • v.3 no.1
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    • pp.49-64
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    • 2014
  • Natural vibration period is an important parameter for high-rise building, Based on 414 high-rise buildings completed or passed over-limit approval in China, the distribution law of natural vibration periods is analyzied. In order to satisfy the design requirements, such as global stability, story drift limit and minimum shear-gravity ratio, the reference ranges of fundamental periods $T_1$ are $0.3{\sqrt{H}}{\sim}0.4{\sqrt{H}}$ when the structural heights $H{\geq}250m$, when 150 m ${\leq}$ H < 250m, $T_1=0.25{\sqrt{H}}{\sim}0.4{\sqrt{H}}$, when 100 m ${\leq}$ H < 150 m, $T_1=0.2{\sqrt{H}}{\sim}0.35{\sqrt{H}}$, when 50 m $ {\leq}$ H < 100m, $T_1=0.15{\sqrt{H}}{\sim}0.3{\sqrt{H}}$. These can provide reference data for controlling mass and rigidity of high-rise buildings.

A Study of Chinese Peaceful Rise and East Asian Regional Cooperation (중국의 평화적 부상과 동아시아 지역협력 연구)

  • Shong, Il-Ho;Lee, Gye-Young
    • International Commerce and Information Review
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    • v.14 no.3
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    • pp.75-96
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    • 2012
  • China will replace the global governance of the 21st century in 2050. The rise of China provide the Chinese development model to other developing countries. There are positive element and disability element in China's 'peaceful rise' strategy at the same time. Success of the reform and opening up, market liberalization, economic interdependency, economic globalization, stability of ruling power, consolidation of one-party rule and soft power increase are the promotions of peaceful rise. China's rise as a power nation begins by regaining the superpower status in East Asia. East Asia is a lebensraum assuring a continuing growth to China. For this lebensraum, China shows an interest in institutionalization of regional economic cooperation. The core values of ASEAN, namely the mutual respect, harmonious coexistence, co-prosperity, egalitarianism and pluralism are in conform to China's policy of harmonious world and peaceful coexistence. Through this common value the tension in East Asia will be alleviated. By the regional hegemony strategy based on soft power and economic success, China will try to regain the past glorious position. Attaining status as a coordinator of the world rule will be based on the success of the East Asian strategy. Korea and other neighboring countries will be the best beneficiary countries of the China's rise strategy. China's rising strategy will have a profound effect on neighboring countries especially, Korea. The scale of the movement of goods, labor, and capital between the two countries will become much larger than present. Through regional trade agreements, economic interdependency between Korea and China will increase.

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Design and Application of Self-Lifting & Slewing Multi-Cranes Platform

  • Kun Zhang;Kaiqiang Wang;Bo Chen;Qing Sun;Hui Yang;Xin Ba;Jinming Zhao
    • International Journal of High-Rise Buildings
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    • v.11 no.2
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    • pp.103-114
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    • 2022
  • Tower crane is of great importance in the construction of high rise buildings. A self-lifting & slewing multi-cranes platform (referred to as crane slewing platform) was developed to optimize the configuration of tower cranes, as well as solve the problems of cooperative operation conflict between multiple cranes and other construction equipment and their respective climbing and occupying of construction period. The design and test of the slewing platform was introduced. By applying the slewing platform in the construction of Chengdu Greenland Center super high rise building project, some key technologies such as the configuration of cranes, the installation, construction and lifting of the slewing platform are implemented and validated. Up to now, the slewing platform has been safely lifted up 98 times in Chengdu Greenland Center project construction, and achieved good social and economic benefits.

Thermal Model for Power Converters Based on Thermal Impedance

  • Xu, Yang;Chen, Hao;Lv, Sen;Huang, Feifei;Hu, Zhentao
    • Journal of Power Electronics
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    • v.13 no.6
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    • pp.1080-1089
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    • 2013
  • In this paper, the superposition principle of a heat sink temperature rise is verified based on the mathematical model of a plate-fin heat sink with two mounted heat sources. According to this, the distributed coupling thermal impedance matrix for a heat sink with multiple devices is present, and the equations for calculating the device transient junction temperatures are given. Then methods to extract the heat sink thermal impedance matrix and to measure the Epoxy Molding Compound (EMC) surface temperature of the power Metal Oxide Semiconductor Field Effect Transistor (MOSFET) instead of the junction temperature or device case temperature are proposed. The new thermal impedance model for the power converters in Switched Reluctance Motor (SRM) drivers is implemented in MATLAB/Simulink. The obtained simulation results are validated with experimental results. Compared with the Finite Element Method (FEM) thermal model and the traditional thermal impedance model, the proposed thermal model can provide a high simulation speed with a high accuracy. Finally, the temperature rise distributions of a power converter with two control strategies, the maximum junction temperature rise, the transient temperature rise characteristics, and the thermal coupling effect are discussed.

How Do South Korean People View the US and Chinese National Influence?: Is Soft Power Zero-Sum?

  • Zhao, Xiaoyu
    • Asian Journal for Public Opinion Research
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    • v.5 no.1
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    • pp.15-40
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    • 2017
  • This paper addresses the zero-sum of soft power against the backdrop of the rise of China and the relative "decline" of America. It attempts to find out that whether the "decline" of America's soft power is caused by the rise of China's soft power, and whether China's rise could guarantee with certainty the growth of soft power. In light of the particularity of South Korea, that is, its economy relies on China and its security relies on the US, this paper chooses South Korea as the entry point for the study. Based on the Pew data from a South Korean opinion poll, this paper conducts bivariate correlation and binary logistic regression respectively, to explore the existence of zero-sum "competitions" between China's and America's soft power.

Research of Circuit Working Construction Elevator with Single-guide Rail and Multi-cages

  • Kun Zhang;Kaiqiang Wang;Di Li;Qing Sun;Zhen Ye;Wei Liu
    • International Journal of High-Rise Buildings
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    • v.11 no.2
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    • pp.137-144
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    • 2022
  • As one of the most important vertical transportation equipment in super high-rise buildings, the construction elevator directly affects the project period, cost, and effectiveness. The paper proposes a new construction elevator with single-guide rail and multi-cages. It can solve the problems of single construction elevator capacity shortage and efficacy decrease with height reduction, the occupancy of plan and elevation position of multiple construction elevators, and extension of total construction period by cycling operation of multi-cages on a single-guide rail. The paper focuses on the design and research of the main components of the equipment, such as the rotating guide rail mechanism, vertical bearing mast tie system, segmented electrical power supply system, group control scheduling system, and safety anti-collision system.

Considerations of Sustainable High-rise Building Design in Different Climate Zones of China

  • Wan, Kevin K.W.;Chan, Man-Him;Cheng, Vincent S.Y.
    • International Journal of High-Rise Buildings
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    • v.1 no.4
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    • pp.301-310
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    • 2012
  • Buildings, energy and the environment are key issues that the building professions and energy policy makers have to address, especially in the context of sustainable development. With more tall buildings constructed in China, the impact on energy consumption and carbon emission would be great from buildings (2% increase of carbon dioxide annually between 1971 and 2004). The imperative was to investigate the building energy performance of high-rise in different climate zones and identify the key design parameters that impose significantly influence on energy performance in sustainable building design. Design implications on glazing performance, sizing of the ventilation fans, renewable energy application on high-rise building design are addressed. Combination of effective sustainable building design strategies (e.g., building envelope improvement, daylight harvesting, advanced lighting design, displacement ventilation, chilled ceiling etc.) could contribute more than 25% of the total building energy consumption compared to the international building energy code.

The Paradox of China's Cultural Rise (중국 문화굴기의 역설)

  • Kim, SeungSoo
    • Korean journal of communication and information
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    • v.76
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    • pp.31-60
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    • 2016
  • The task of this essay deals with the China's Cultural Rise in analizing the power of media and 'Go Global' policy. The phenomena of Chinese cultural hegemony over Asia beg study. I review the Chinese cultural industry going global. The notion of cultural hegemony is introduced in this study, in order to explain the rise of China accelerating a penetration and influence of Chinese cultural capital and its power. A peaceful rise of China links to its cultural hegemony over Asian countries. Currently, China has not sufficiently enjoyed the soft power due to its lack of globally accepted ideological dynamics in China's culture and media. But in the near future, market-driven Chinese cultural capital and contents will replace Korean ones.

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