| Reinforcement, as an important way to improve original buildings seismic grade and reduce the earthquake disaster, have been widely applied in existing buildings. The traditional reinforcement scheme resists seismic disaster by strengthening the intensity and rigidity of structure or changing the original construction of structural system. The original key wall need to be removed if we use the way of changing the original structure system , and a shear wall need to be added for improving seismic grade. This way has serious disadvantage. Not only lead to the original structure emerges large disturbance, but also lead to great cause great economic loss. The method of Protect-shape vibration control remedies the above mentioned problems..The way of Protect-shape vibration control is a kind of advanced reinforcement scheme that studied by Professor Zhi-Chang Tian through years of work about seismic and strengthening. The Energy-absorbing component doesn't need to provide energy in this strengthening way. And reduce the damage of earthquake in the original structure just by their ability to absorb the earthquake vibration. And attain the effect of decreasing vibration. A shear wall of the Protect-shape vibration control and is different from traditional reinforcement: a shear wall add in or out of original structure rather than add in the two frame column. Shear wall that can absorb energy has its own independent foundation that attaches to the original structure. The advantages and disadvantages of traditional reinforcement and vibration control were summarized in this article. The reinforcement of Protect-shape vibration control meets the requirements of customers in economic and practical aspects.The original frame-the framework of shear wall structure system and the force and load of shear wall were analyzed firstly. According to the characteristics of shear wall that can absorb energy, find out the related factors in formula, attain the following conclusions by analysis: the theoretical calculation formula of adding shear wall in traditional way fit calculation of absorbing energy shear wall completely. Compare the traditional reinforcement scheme and reinforcement scheme of Protect-shape vibration control according to simulation of two-dimensional structural system Using finite element analysis software SAP2000. Get the internal force of specific rods when load combinations and seismic response spectrum function are same. Analyze by comparing and draw conclusions. Then create model to two specific project examples using structure design software-PKPM and finite element analysis software- SAP2000 respectively. Compare data and draw actual results. The way of Protect-shape vibration control according to vibration control theory not only can control seismic force transmit to the original structure during an earthquake. Consequently, reduce the destruction of the original structure, but also have advantages in the economic aspect. |
