as a key component of the construction project, the review and acceptance of the fire protection design of the construction project runs through. A large number of investigations and studies show that some buildings have fire hazards in the early stage of construction, which poses a great threat to the overall quality and safety of buildings. At present, there are still many problems in the audit and acceptance of fire protection design of construction projects in China, which is also an important reason for causing fire hazards and frequent fire accidents, and effective measures need to be taken to solve them.

1. Problems needing attention in the examination and acceptance of fire protection design of construction projects

(1) Time limit for examination and approval

China has put forward clear time limit requirements and standards for the examination and acceptance of fire protection of construction projects in legislation, but in practice, many units have not published and publicized relevant issues in strict accordance with the relevant requirements and standards, resulting in such administrative licenses not being completed within the prescribed time limit. Factors such as fewer people, heavy tasks, and repeated entry of public security intranet and extranet will affect the time limit for examination and approval. The survey found that most detachment engineers audit about 41 projects per month, and each project needs at least five levels of approval, such as technical review and drawing review. At the same time, it also needs to be entered into the file management system, sorted, bound and filed, the results distributed, satisfaction survey, and finally the external network publicity link. There are many links, and any one link is slightly delayed, which will inevitably affect the whole approval time limit. In terms of publicity, the time limit for examination and approval and the application materials clearly stipulated in the legislation should be publicized in the office or on the Internet [1], and the results of the examination, acceptance and filing spot checks and the whole process should be announced to the public. Among them, personal privacy and confidentiality can be reserved to effectively protect citizens' right to know, give full play to the supervisory role of society, ensure the openness, transparency and fairness of the examination and approval process, ensure the smooth development of administrative examination and approval, and make its legal time limit fully meet the corresponding standards and requirements.

(II) Examination and approval efficiency

According to the survey, at present, most fire departments of public security organs can complete the examination and approval in strict accordance with the standard workflow, but some units only use paper documents for fire administrative examination and approval, and do not implement the online examination and approval process through the fire supervision and management system of the Ministry of Public Security. This phenomenon is generally called "extracorporeal circulation". In this way, it will easily lead to mistakes in a certain link, and it may also lead to problems such as pressing the paper without trial or black-box operation. In addition, in the process of examination and approval, due to the emergence of various new problems and new requirements, the project has been delayed for a long time or has to be revised repeatedly. Therefore, the public security organs must fully implement various relevant systems, such as "three-level control and four-level responsibility", etc. For the contents that must be revised or changed by the unit, the window acceptance personnel are required to inform the construction unit at one time, so that it can fully clarify the contents that need to be revised and complete the revision work in combination with specific requirements and standards. In order to uniformly distribute the documents for examination and approval, it is necessary to send and receive the acceptance and examination and approval results of the project in the same window, so as to effectively prevent the occurrence of malpractices such as black-box operation.

(III) Examination and approval services

As far as the examination and approval of fire administrative license is concerned, it has a set of fixed procedures, and the construction unit must prepare all the materials that need to be examined and approved in advance. However, in practice, some window acceptance staff are highly mobile, and their professional level is not high, and their guidance to the reporting unit is insufficient and incorrect, which leads to the failure of the unit to prepare the reporting materials for many times, which inevitably leads to the phenomenon of "running the wrong way" and leads to the dissatisfaction of the unit. In terms of technical examination and approval, some administrative examination and approval parties have not yet established a scientific concept, but still have a strong concept of privilege and leadership. The service quality is low, which seriously affects the service level of examination and approval, thus affecting the service satisfaction of the applicant to the examination and approval authority. Therefore, it is necessary to establish a perfect service evaluation system, linking the service quality of the examination and approval personnel with their salaries [2], so as to enhance the service awareness of the examination and approval personnel, improve their work enthusiasm and improve their service level. For example, in 2117, Jinan detachment introduced some measures such as appointment acceptance, online inquiry and feedback from WeChat platform at the standardized on-site meeting of fire law enforcement in the whole province, which effectively improved the examination and approval service level to a certain extent and is worth learning.

(IV) Auditing ability

The main auditing and acceptance personnel of fire protection design of construction projects must have high professional quality, generally have the technical title of engineer or above, and also have certain engineering practice experience. Attention should be paid to the practical experience of young and assistant engineers, and the personnel of the audit and acceptance team should pay attention to the age structure combination of "old, middle and young", give full play to their respective advantages, learn from each other's strong points, and do a good job in verification. Members of the audit team should hold at least one audit consultation, study discussion and exchange meeting every week, organize business competitions and exams in a timely manner, create a learning atmosphere, and encourage continuous learning at work. At the same time, because the fire inspection and acceptance of construction projects is a comprehensive systematic project, the inspectors should not only strengthen the study and understanding of technical specifications such as the Code for Fire Protection in Building Design, but also strengthen the study of relevant laws and regulations, and at the same time do a good job in the supervision of fire protection projects to improve their comprehensive ability. In particular, the window staff must be familiar with the fire laws, regulations and rules, as well as the corresponding technical specifications. They can promptly inform the applicant of the obvious problems that do not conform to the mandatory specifications of fire control technology, so that the applicant can modify them in time, avoid taking the wrong path and improve the people's satisfaction with fire control work.

(V) Audit system

In order to actively implement the separation system of technical review and administrative examination and approval, in 2114, the Shandong Provincial Public Security Department and the Ministry of Housing and Urban-Rural Development issued the Notice on Printing and Distributing the Guiding Opinions on Implementing the Separation System of Technical Review and Administrative Examination and Approval for Fire Protection Design of Construction Projects. This opinion clearly puts forward that for construction projects that should be audited and filed for fire protection design according to law, the construction unit should entrust the construction drawing review agency recognized by the provincial housing and urban-rural construction department to conduct technical review on the construction drawing fire protection design documents, and the fire control agency of the public security organ should formally review the application materials for fire protection design audit and filing by the construction unit and the qualified technical review report submitted by the construction drawing review agency, and randomly conduct supervision and spot checks to make a decision on fire protection administrative license and a spot check conclusion on fire protection design filing. However, in practice, due to various reasons, many technical problems in the fire protection design documents have to be examined by the fire control institutions of public security organs, which invisibly increases the workload of auditors. In addition, department heads should fully understand the professional direction, industry division of labor, research fields, special interests, etc. of audit engineers, and focus on the project division, for example, some focus on auditing super-high-rise buildings, some focus on auditing shopping malls, and some focus on auditing hotels and restaurants with crowded places, so as to improve the efficiency of examination and approval. At the same time, it is necessary to clarify the responsibilities, hold technical study and analysis meetings in a timely manner, discuss obscure issues, pay attention to unity and cooperation, and solve the difficulties of less manpower, less available time and heavy tasks from the system.

2. Strategies for improving the level of fire protection design review and acceptance of construction projects

(1) Pay full attention to the examination and approval of design drawings

Only by paying full attention to the examination and approval of architectural design drawings can we ensure the quality of fire protection review and acceptance of construction projects. Design units should do a good job in drawing design in strict accordance with the Code for Fire Protection Design of Buildings, so as to ensure that the architectural design fully meets the laws, regulations and technical standards, and ensure the overall quality of the design drawings. In the examination and approval process, it is necessary to strictly check whether there is any phenomenon of lowering the fire protection design standard without authorization in the later revision of architectural design, so as to effectively prevent the occurrence of examination and approval errors [3]. At the same time, it is necessary to clarify and increase the responsibilities of designers, and implement the system of signing the design responsibility commitment letter, so that each designer can fully understand his design responsibility, standardize the attitude of design work with responsibility, and urge designers to complete the design work seriously and responsibly with the system.

(II) Strengthening the management and technical review in the construction stage

In the construction stage, the construction unit should complete the construction operation of the fire protection project in strict accordance with the relevant requirements and standards, fully ensure that the quality and quantity of the fire protection facilities used can fully meet the requirements and standards issued by the state, complete the construction and installation operation in strict accordance with the relevant requirements and standards, and ensure that the fire protection technology of the project can fully meet the relevant technical requirements and standards. In addition, in the construction process, the construction work should be carried out strictly according to the contents of the design drawings, so as to ensure that the construction site can be completely consistent with the drawings approved by the design, effectively guarantee the construction quality, efficiently complete the technical review work, and ensure the technical standards.

(3) Strengthen the professional training of fire protection design audit and acceptance personnel

In order to better complete the fire protection design audit and acceptance of construction projects and effectively guarantee the quality of the audit and acceptance, we must pay full attention to the technical training of relevant law enforcement personnel, so that they can master more scientific and advanced professional knowledge and skills, fully understand fire protection laws and regulations, improve their comprehensive literacy and audit ability, and better complete the audit and acceptance of construction projects and find them in time. Audit and acceptance personnel should establish a strong sense of responsibility, strictly enforce the law, not engage in malpractices for personal gain, and actively do their jobs in line with the principles of fairness, impartiality and openness. At present, there are still some phenomena such as abuse of power and malpractice in law enforcement departments [4]. Therefore, it is necessary to give full play to the role of citizens in supervising law enforcement departments, continuously improve the public's awareness of participation, and promptly accuse and report acts such as malpractice for personal gain and abuse of power. Relevant departments should promptly investigate and deal with the contents of the accusation and complaint.

(IV) Innovating the examination and acceptance criteria

In order to effectively improve the examination and acceptance level of fire protection design of construction projects, law enforcement departments should formulate a series of perfect technical specifications and indicators. A set of clear, scientific and unified audit standards can make the fire protection design audit and acceptance work more clear, fair, just and transparent. In addition, law enforcement departments should actively understand all kinds of new facilities, new materials and new processes in the construction industry, master their related characteristics, and formulate scientific and perfect audit and acceptance systems and standards for these new materials and technologies, so as to comprehensively improve the level of audit and acceptance and effectively prevent various audit and acceptance problems.

At present, there are still many problems in the audit and acceptance of fire protection design of construction projects in China, which will inevitably affect the overall audit and acceptance level, lead to frequent fire accidents and affect the safety and reliability of building use. Therefore, effective measures must be taken to solve them from the source. Only by paying full attention to the examination and approval of design drawings, strengthening the management and technical examination in the construction stage, strengthening the professional training of design examination and acceptance staff, improving their professional quality and comprehensive quality, formulating more scientific and sound relevant standards, and improving the level of law enforcement, can the fire protection design examination and acceptance of construction projects be carried out smoothly and efficiently, thus promoting the good development of the construction industry.

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