Analysis of the Economic Benefits of Prefabricated Buildings

Abstract

At present, China's construction industry, mainly adopts the way of on-site pouring (masonry) construction, low resource and energy utilization efficiency, large construction waste discharge, serious dust and noise, and environmental pollution. If the construction way is not fundamentally changed, the resulting excessive consumption and waste of resources and energy will not be reversed, and the contradiction between economic growth and resources and energy will be more prominent, and will greatly restrict the sustainable development of the economy and society. In recent years, China's industrialization and urbanization have been advancing rapidly, the reduction of the labor force and the shortage of high-quality construction workers have become more and more prominent, and the "hard constraints" on the development of the construction industry have intensified. On the one hand, the labor price is constantly rising; on the other hand, the traditional construction mode is extensive, the low level of industrialization, a shortage of skilled workers, and low labor efficiency. The development of prefabricated buildings is a major change in the way of construction and an important measure to promote China's supply-side structural reform and the development of new urbanization. The development of prefabricated buildings is conducive to saving resources, reducing construction pollution, improving labor production efficiency and quality and safety level; promoting the deep integration of the construction industry and information industrialization, cultivating new industries and new driving forces, and promoting the resolution of excess capacity. Prefabricated buildings adopt the modern industrial production mode to replace the traditional manual production mode, which has many advantages in improving the construction quality, improving the production efficiency, shortening the time period, energy saving and emission reduction, saving the labor force, and improving the working environment of workers.

Prefabricated buildings adopt the standardized and collaborative design, which can reduce the problems of "wrong, leakage, touch, lack" and other problems from the design source. Precprefabricated parts are factory produced with high accuracy and reliable quality; industrial workers' assembly standard construction on site can effectively solve wall leakage and cracking in traditional construction methods and improve the overall construction quality. The Prefabricated building adopts the factory production and assembly construction mode. Compared with the traditional cast-in-place and wet operation mode, it can significantly reduce the comprehensive labor input, improve production efficiency and shorten the construction period. The dust, noise, and sewage discharge of prefabricated buildings are greatly reduced, and the construction process can well achieve the "five sections and one environmental protection", in line with the national energy conservation, emission reduction, and green development goals.

Similar to traditional cast-in-place concrete buildings, prefabricated concrete buildings are designed and reviewed according to the relevant building specifications and standard atlas issued by the competent authorities. The Prefabricated components of the prefabricated concrete buildings are produced by the PC production line with high accuracy. At the construction site, the professional assemblers shall install and construct them according to the standardized construction process, and the government and third-party agencies shall effectively supervise and accept the construction quality of the prefabricated buildings. At the same time, prefabricated concrete buildings have a large number of practical engineering cases in the United States, Europe, Japan, and China, which provides valuable construction experience and construction methods, which can effectively support and guarantee the construction quality of the current prefabricated concrete buildings.