For super high-rise buildings, the vibration period of the basic mode is several seconds, and it is very close to the period of the fluctuating wind. The damping of super high-rise buildings is low, so super high-rise...For super high-rise buildings, the vibration period of the basic mode is several seconds, and it is very close to the period of the fluctuating wind. The damping of super high-rise buildings is low, so super high-rise buildings are very sensitive to fluctuating wind. The wind load is one of the key loads in the design of super high-rise buildings. It is known that only the basic mode is needed in the wind-response analysis of tall buildings. However, for super high-rise buildings, especially for the acceleration response, because of the frequency amplification of the high modes, the high modes and the mode coupling may need to be considered. Three typical super high-rise projects with the SMPSS in wind tunnel tests and the random vibration theory method were used to analyze the effect of high modes on the wind-induced response. The conclusions can be drawn as follows. First, for the displacement response, the basic mode is dominant, and the high modes can be neglected. Second, for the acceleration response, the high modes and the mode coupling should be considered. Lastly, the strain energy of modes can only give the vibration energy distribution of the high-rise building, and it cannot describe the local wind-induced vibration of high-rise buildings, especially for the top acceleration response.展开更多
In recent years, China has paid attention to the college expansion plan, and people have attached importance not to only students＇ academic performance, but also their quality and extracurricular activities. At this ...In recent years, China has paid attention to the college expansion plan, and people have attached importance not to only students＇ academic performance, but also their quality and extracurricular activities. At this point, all kinds of activities for college students have been widely concerned. Students in ordinary universities almost exercise in the gymnasium, which requires optimizing the management mode of gymnasium construction. In the process of university gymnasium management, it needs building effectively according to the requirements of college students＇ activities, ensuring a better activity space for college students. At this point, it is necessary for relevant management personnel to focus on the management, and make perfect management mode, so as to ensure the better optimal management system. This paper proposes measures to build the university gymnasium management mode through the analysis of the university gymnasium management mode problems, in order to offer reference for management personnel.展开更多
Existing large-scale public building energy saving renovation is the inherent requirement of sustainable development, it has been proved that implementing the energy performance contracting mode in the Existing large ...Existing large-scale public building energy saving renovation is the inherent requirement of sustainable development, it has been proved that implementing the energy performance contracting mode in the Existing large public buildings energy-saving is an effective way both at home and abroad. EPC mode has obvious characteristics for the ESCO and the customers, it can meet the basic requirements of large public buildings energy-saving, such as the width of funding sources, program specifi cation, advanced technology, information fl ow and management level higher, etc. Under the condition of market economy, it also provides a broad platform for the ESCO implements building energy saving transformation, which is conducive to the realization of the win-win cooperation between the parties, and to promote the healthy development of the existing large public building energy saving reconstruction.展开更多
基金National Natural Science Foundation of China Under Grant No.50908044 Jiangsu Provincial Natural Science Foundation of China Under Grant No.SBK201123270 a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions and StateKey Lab of Subtropical Building Science,South China University of Technology Under Grant No.2011KA05
文摘For super high-rise buildings, the vibration period of the basic mode is several seconds, and it is very close to the period of the fluctuating wind. The damping of super high-rise buildings is low, so super high-rise buildings are very sensitive to fluctuating wind. The wind load is one of the key loads in the design of super high-rise buildings. It is known that only the basic mode is needed in the wind-response analysis of tall buildings. However, for super high-rise buildings, especially for the acceleration response, because of the frequency amplification of the high modes, the high modes and the mode coupling may need to be considered. Three typical super high-rise projects with the SMPSS in wind tunnel tests and the random vibration theory method were used to analyze the effect of high modes on the wind-induced response. The conclusions can be drawn as follows. First, for the displacement response, the basic mode is dominant, and the high modes can be neglected. Second, for the acceleration response, the high modes and the mode coupling should be considered. Lastly, the strain energy of modes can only give the vibration energy distribution of the high-rise building, and it cannot describe the local wind-induced vibration of high-rise buildings, especially for the top acceleration response.
文摘In recent years, China has paid attention to the college expansion plan, and people have attached importance not to only students＇ academic performance, but also their quality and extracurricular activities. At this point, all kinds of activities for college students have been widely concerned. Students in ordinary universities almost exercise in the gymnasium, which requires optimizing the management mode of gymnasium construction. In the process of university gymnasium management, it needs building effectively according to the requirements of college students＇ activities, ensuring a better activity space for college students. At this point, it is necessary for relevant management personnel to focus on the management, and make perfect management mode, so as to ensure the better optimal management system. This paper proposes measures to build the university gymnasium management mode through the analysis of the university gymnasium management mode problems, in order to offer reference for management personnel.
基金supported by the National Natural Foundation of China (Grant No. 71171141)Project of the Ministry of Housing and Urban-Rural Development (Grant No. 2013-R1-14)the Tianjin Municipal Social Science Planning Project (Grant No. TJGLHQ1403)
文摘Existing large-scale public building energy saving renovation is the inherent requirement of sustainable development, it has been proved that implementing the energy performance contracting mode in the Existing large public buildings energy-saving is an effective way both at home and abroad. EPC mode has obvious characteristics for the ESCO and the customers, it can meet the basic requirements of large public buildings energy-saving, such as the width of funding sources, program specifi cation, advanced technology, information fl ow and management level higher, etc. Under the condition of market economy, it also provides a broad platform for the ESCO implements building energy saving transformation, which is conducive to the realization of the win-win cooperation between the parties, and to promote the healthy development of the existing large public building energy saving reconstruction.
