In addition, the precast structure is manufactured in the pre prepared site, and then the assembly is completed at the construction site, instead of carrying out on-site operation at the construction site, so that the noise and dust at the construction site are reduced, and then the pollution is reduced.

Straight Anchor

Precast components can be manufactured in large quantities on the prefabrication site, because people can manufacture the precast structure in advance and directly complete the assembly on the site, which can greatly reduce the use of formwork and steel scaffold, It not only reduces the construction cost, but also shortens the construction process on the construction site, thus reducing the construction period and increasing the time benefit.

Keywords assembly construction; Construction management; Environmental impact factors; Countermeasure precast buildings refer to a relatively new type of buildings that are assembled directly on the construction site by various simple and reliable mechanical connection methods through the precast building structure.

In addition, because the managers do not work hard, it will also affect the formation, improvement and play of the management system, resulting in many management systems can not be implemented, which also affects the development of the precast construction engineering management system, and even the development of the whole construction engineering industry.

We must do a good job in the management of precast buildings in order to ensure their sustainable development, However, there are still some problems in construction management.

（4） To shorten the construction period, the precast construction shall first produce the precast components at the prefabrication and manufacturing site, and then go to the construction site to complete the assembly and splicing, that is, build the house like building a car, and then replace the traditional manual operation with a more mechanized method, because they are mechanized operations.

First, the precast structure shall be manufactured, and then assembled through on-site construction, It reduces a series of processes such as on-site binding of reinforcement and formwork construction, and therefore shortens the construction period [1].

However, during the current project construction, some projects mostly adopt the methods of quality acceptance and supervision for the control of construction quality, although the application of such post control means can play a certain role in quality control, However, it is unable to deal with the quality problems in time and failed to prepare a scientific and feasible quality control scheme before construction, resulting in the lack of pre and in-process control in the construction of precast buildings..

However, at present, due to many factors, the power of the project management organ of the local government is limited and the work cannot be implemented, which will also affect the current construction project management [2].

The drawings of different architectural disciplines are designed independently, which is very likely to lead to design conflicts in the subsequent drawing integration stage Uncoordinated design and other phenomena not only affect the overall design effect of the drawing, but also have great restrictions on the construction of precast buildings.

For these buildings that are still in the primary stage of development, it is a challenge for workers and managers.

If the manager doesn’t spend a lot of time and energy to master the latest ideas and management methods, his management can’t adapt to the current precast buildings or precast construction projects.

Ensuring the orderly progress of precast construction management is not only an important prerequisite for the orderly and healthy development of construction industrialization, but also a major responsibility that China’s construction management must bear.

The precast construction engineering is very different from the traditional construction management in terms of construction technical standards, process flow, service content and so on.

Precast buildings have the advantages of saving all kinds of energy consumption, water resources, soil and building materials.

Precast construction engineering, with its advantages of high construction quality, easy management, short construction time and low construction energy consumption, has formed the latest development direction of China’s building materials industry.

（1） The awareness of construction project managers is backward.

Research on the key points in the construction management process of precast buildings Abstract precast construction is increasingly favored by architectural design and construction companies in recent years because of its advantages such as cost, compression of construction time, energy conservation and consumption reduction.

Coupled with the lag of traditional project management means, the design drawings of various disciplines cannot be shared and connected with each other.

× 2、 The main factors affecting the management of precast buildings are the high level of structural intensification of precast buildings and the high requirements for the installation, positioning and adjustment of completed projects.

（4） In terms of quality, there is a direct connection between the quality control of precast building construction and the design of quality control scheme.

（2） The supervision of government departments is not in place.

（3） In terms of drawings, at present, for the design of precast buildings, the application of traditional design means will generate more CAD drawings.

In addition, in some cast building projects, there are still problems that relevant personnel cannot master CAD drawings, which affects the effect of building assembly [3].

（3） To ensure the project quality and safety, the traditional building construction carries out production operations on the project site.

× 1、 Advantages of precast buildings the design of precast buildings has more advantages than traditional buildings, which are mainly reflected in the following aspects: (1) improve labor productivity.

The special management department of the construction industry of government departments has a certain obligation to coordinate, supervise and manage the construction management work.

For example, the template material can be recycled, thus saving various resources.

While the precast project will manufacture the precast structure in time after preparing the site in advance, and then transport it to the construction site.

The technicians specialized in the installation project will be responsible for the on-site installation, but it is usually mechanized assembly, because in this way, the quality can be guaranteed and the hidden dangers can be reduced.

Through the supervision and management of departments, the construction management organs can be aware of their functions and seriously complete the management work.

Because it is mainly the production of mechanical equipment, and the workers’ skills and literacy are not very high, it often leads to project quality events and hidden dangers.

Compared with other construction industries, our traditional construction managers are easier to stick to the rules and insist that the current precast construction project management can be handled with traditional methods.

（2） Save energy and reduce environmental pollution.