Study On Technical Performance Of Attached Self-Lifting Scaffold For Super High Buildings

With the development of social economy of our country and the increasing speed of internationalization of the modern cities, super high-rise buildings have been springing up. The high-rise building provides a colorful stage for the attached self-lifting scaffold technology. Meanwhile, some complex structured buildings have new requirements on attached self-lifting scaffold. Attached self-lifting scaffold, equipped with anti-turnover and anti-falling devices, fixed on the structure only by attaching and supporting devices. It can "climb up" floor by floor. Wind load is one of the key factors for scaffold which is used on super high-rise buildings. The research in mechanical performance, construction technology and dynamic properties of scaffold obviously has important significance in both theory and practice, and great value for the safety and reliability during construction, and for the development and innovation of technology of attached self-lifting scaffold.Based on the requirement of construction technology, this paper primarily discussed construction technology on the structure, installation, dismantlement and safety management of attached self-lifting scaffold. According to related regulations, the mechanical properties for scaffold under 4 different working styles and 10 different work conditions in all were analyzed. Modal analysis was carried out on attached self-lifting scaffold through finite element method, after that, the frequencies and modes of the structure were analyzed. Artificial wind load were generated through autoregressive simulation method considering both time and spatial correlation. Based on the simulated wind process, the response of scaffold was calculated in time-domain. According to the research as well as construction practice, the stress distribution and rules of scaffold's displacement were concluded.Finally, according to comparing and contrasting the static and dynamic displacement response of attached self-lifting scaffold under wind load, and analysis on the influence to construction that different degrees of wind load might bring up, some suggestions that could instruct the construction of attached self-lifting scaffold were raised, the research of this paper added new contents to the technology for attached self-lifting scaffold.