1, the characteristics of construction project management and the necessity of information management. The purpose of architecture is to form architectural products with certain functions. The basic characteristics of building products, such as fixed position, various forms, complex structure and huge volume, determine that building construction has the characteristics of long production cycle, many kinds of resources used, large consumption and high spatial mobility. It is the main content of construction project management to effectively plan, organize and control the construction process itself and the manpower, material resources and financial resources involved in the construction process. Construction project management mainly has the following characteristics: (1) involves a wide range. Construction project management is a multi-department and multi-professional comprehensive management. It includes not only the production management in the construction process, but also the management contents such as technology, quality, materials, planning, safety and contract. (2) Heavy workload. The formation of a building needs to consume all kinds of materials and a lot of construction activities. The management of all these construction links and the resources used are in place. It is conceivable that the management of construction projects is complex and arduous, and these are only two aspects of production management and material management in project management. (3) is restrictive. Project management must conform to the gradual law of building construction from preparation to completion acceptance. Therefore, the management of construction projects should not only meet the requirements of relevant norms and regulations of construction projects, but also cooperate with each other and arrange in an orderly manner. (4) The information flow is large. Information, like material and energy, is an important resource for social and economic development. Any management activity is inseparable from the processing of certain information. The management activities in all aspects of construction projects are not isolated, but there are interdependent and mutually restrictive links between them. Therefore, the exchange and transmission of information between management activities is inevitable, and the complexity and heaviness of construction project management directly determines the characteristics of complex and frequent information flow in the process of project management. However, in the traditional construction project management mode, the storage of all kinds of information about the project is mainly based on paper forms such as tables or documents; The processing and arrangement of information is completely completed by a large number of manual calculations; The exchange of information is mostly through manual transmission or even oral transmission between people; Information retrieval depends entirely on browsing and viewing documents. The information runs slowly from generation, sorting, processing, transmission to retrieval and utilization, which easily affects the timely display of information and causes mistakes in project management. With the continuous expansion of the scale of modern engineering construction projects, the requirements for the technical difficulty and quality of construction are also increasing, and the amount of information exchanged by various departments and units is also expanding. The information exchanged by various departments and units is constantly expanding, and the exchange and transmission of information is becoming more and more frequent, which makes the complexity and difficulty of construction project management more and more prominent. It can be seen that the traditional project management mode has obviously restricted the survival and sustainable development of construction enterprises in the fierce competition environment of market economy in terms of speed, reliability and economic feasibility. In recent years, some powerful construction units have taken the lead in applying advanced computer technology to assist project participants in some project management work. For example, professional budgeters use budget software to prepare construction budget, production planners use network planning software to arrange construction progress, and technical librarians use AutoCAD drawing software to draw as-built drawings. Through the use of these softwares, the quality and efficiency of construction project management have been significantly improved and improved. Thus, it is necessary and feasible to apply information technology in building construction. It should be noted that the information management of construction projects not only refers to the use of computers in the internal management of construction projects, but also has broader and deeper connotations. First of all, based on the possibility provided by information technology, it efficiently collects, processes, transmits and enjoys all the information that needs to be processed in the management process, reduces the duplication of information processing between departments, and provides a reliable basis for project management services and project decision-making; Secondly, make the control of supervision and inspection and information feedback more timely and effective. According to the planning experience of existing projects, make the planning work represented by production plan and material plan more advanced and reasonable, make the organization of construction activities and project management activities more scientific, correctly guide the development of project management activities and improve the automation level of construction management. 2. Feasibility of information management of construction projects Information technology mainly refers to the combination of computer technology, communication technology and network technology. The rapid development of information technology ensures the feasibility of information management of construction projects from three aspects: (1) The economic performance-price ratio of information equipment has been greatly improved, which makes it possible to popularize and apply it in construction project management. At the current market price, configure 10 computers with good performance for a project team and set up a local area network, which can be completed with an investment of less than 200 thousand yuan; With the popularization of information technology and the comprehensive utilization of information resources, a slightly larger project can save more than 200,000 materials and management fees. Moreover, this one-time investment can bring many years of information resources utilization and cost savings of hundreds of projects to the construction unit. (2) The application of technical information technology enables construction engineering information to be stored in large quantities, processed efficiently and transmitted at high speed based on electronic media, so that all project participants can enjoy information and work together conveniently through the network, thus making more effective comprehensive use of information resources, promoting the improvement of engineering technology level and management level, and making it possible to fundamentally change the low-tech situation in the construction field. (3) Engineering application is the comprehensive application of modern high-tech such as information technology represented by computer integrated manufacturing system (CIMS) in manufacturing industry, which has brought obvious economic and social benefits to more than 200 enterprises in more than 20 provinces and cities and 10 industries. Secondly, in the field of building construction, represented by some large enterprises with strong technical force, computer-aided construction and comprehensive utilization of information technology have made great progress. For example, in the construction of Shanghai Jinmao Building, the computer is used to monitor the concrete temperature and water flow to monitor the construction of mass foundation concrete, so as to avoid cracks caused by excessive temperature. Use computer to monitor elevation at multiple points to guide the upgrading of steel formwork system and avoid vertical deviation of formwork as much as possible. The successful application of these information technologies in engineering proves that the information management of construction projects will have broad development prospects. 3. Development steps of construction project information management system In China, the development of construction project information management system is still in the initial stage of development. First of all, a number of private high-tech companies have successively launched networked management information platforms, such as Mr2000 of Beijing Menglong Company and Project Management 2000 of Dalian Tongzhou Company. Secondly, some construction enterprises with strong technical force independently developed practical management software suitable for project level and enterprise level, such as the construction project management information system of China Construction No.1 Bureau and No.4 Company and the construction enterprise information management system of China Construction No.5 Bureau and No.3 Company. Finally, the information management of construction projects has attracted the attention of some domestic experts and scholars, and related research work is gradually being carried out in some universities with technical and economic strength, such as the Department of Civil Engineering of Tsinghua University and the Department of Civil Engineering of Shanghai Jiaotong University. Although these efforts have changed the situation that the computer application in the construction field lags far behind the design field, and the management level and economic benefit of the construction project have indeed been obviously improved, the automation, integration and systematization of the system are still lagging behind. In order to deepen the development of construction project information management system and make information technology serve construction production more effectively. (1) Detailed preparation, including in-depth literature research, investigation of existing information management systems and analysis of advantages and disadvantages. (2) In-depth field investigation, and on the basis of these preparations, using scientific system analysis methods, systematically establish a multi-level and multi-directional information model that conforms to China's national conditions and is suitable for the development of building construction information management system. (3) On the basis of system analysis, the information models are designed comprehensively. The main contents of system design are system configuration design, system overall design, database design and input and output design. (4) Applying certain development strategies, a comprehensive construction project information management system is developed through specific programming, testing and other links, and the value and significance of developing this information management system are illustrated through preliminary engineering application. 4. Significance of information management of construction projects (1) The convenience provided by information technology reduces the daily management burden of project participants. For example, it provides complete and accurate historical information for all project participants, facilitates browsing and supports pasting and copying these information on computers, greatly improves the efficiency of project management with different parts but basically the same content, and reduces a lot of repeated copying work under the traditional management mode. (2) It can provide a good cooperation mechanism for all project participants. For example, in the information sharing environment, some routine information notifications are automatically completed, which reduces the number of manual information exchanges between project participants and ensures that information transmission becomes fast, timely and smooth. (3) To adapt to the rapid increase of information in construction project management, it is allowed to collect daily information data of various project management activities in real time, and provide timely and convenient supervision and inspection for all management links, and implement standardized management, thus promoting the improvement of project management quality. (4) All information of building engineering is stored in a systematic and structured way, which is convenient for post-construction analysis and data reuse. Therefore, the implementation of information management of construction projects can effectively use limited resources, consume costs as little as possible and as quickly as possible, ensure excellent project quality, and obtain the maximum social and economic benefits of the project.
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