At present, the safety problems in the construction process are very prominent. According to statistics, the safety incidents of housing and municipal engineering production have been increasing year by year in recent years. Among them, high-altitude fall accidents occurred in 235, 333, 255 in 2015, 2016 and the first three quarters of 2017 respectively. The proportion of 53.2%, 52.5%, and 49.6%, respectively, and the unregulated use of aerial work tools such as scaffolding bear the brunt. The safety issue is not only about the safety of workers, but also brings public opinion pressure and low compensation expenses to the construction party. In contrast, the aerial work platform, as a large-scale mechanical device, can place people or objects in the work basket. The work basket is leveled throughout the expansion of the telescopic arm through the machine's leveling mechanism, resulting in more stability and safety. Operating environment. It is expected that the state's safety management regulations for high-altitude operations will become more stringent, and that business operators and construction personnel are increasingly aware of safe production, and the replacement of scaffolding by aerial work equipment will also be an inevitable development trend.
In contrast to scaffolding, the economics of aerial work platforms will be highlighted as construction height and labor costs increase. According to statistics, the marginal cost of scaffolding in construction projects has its boundary point. Although the initial cost of scaffolding is low, there is no economic advantage above 8-10 meters. As the height increases, the cost of the aerial work platform remains the same, while the scaffolding on the one hand increases the structural strength requirements of the bottom structure, on the other hand, it is necessary to continuously build a new operating platform, materials and labor must continue to increase, the marginal cost Constantly enhanced. In addition, the increase in labor labor costs in China continues to raise the cost of scaffolding. Taking the construction industry with the highest altitude work as an example, the average wage growth rate of construction workers in 2006-2016 reached 12.41%. Although the growth rate in 2014-16 has slowed down, it also exceeded 6%. On the one hand, it can reduce the employment of personnel, on the other hand, shorten the construction period and improve the efficiency. The combined effect of the two aspects makes the overall labor cost of the aerial work platform significantly lower than that of the traditional scaffolding, and its economic advantage will become more prominent with the increase of labor cost.
