Research on cost control of intelligent building engineering?

What is the specific content of the research on the cost control of intelligent building projects? Here, Zhong Da Consulting will answer your questions.

1. Overview Intelligent building is the product of the combination of traditional building engineering and emerging information technology. From the viewpoint of systems engineering, it optimizes and combines the four basic elements of building structure (building environment structure), system (intelligent system), service (residence, user demand service) and management (property operation management), and realizes building automation, communication automation and office automation with optimal design, providing a building with reasonable investment, high efficiency, elegance and comfort. Due to the late start and short development history of building intelligence, there are fewer professional and technical personnel engaged in this industry at present, and even fewer compound talents who can have technology, construction management and project cost management at the same time. Especially with the rapid development of information technology, new technologies, new processes and new materials emerge one after another. In addition, intelligent building projects are quite different from civil engineering and installation projects in design management process, design depth in each stage and design participants, which increases the difficulty of project cost management. Second, the problems existing in the cost control of intelligent building project Intelligent building is composed of intelligent subsystems, and its total project cost is composed of equipment purchase fee, installation fee and software programming and debugging fee of each subsystem. Because the scheme design, construction drawing deepening design and engineering construction of intelligent system are mostly completed by equipment suppliers and system integrators, or assisted by design institutes and construction units, there are many problems in the cost management of intelligent building projects. 65438+ is still limited by the level of managers, and the built intelligent system has not fully played its role, leading to the formation of intelligent buildings and great waste. 2. Insufficient bid preparation. At present, the intelligent engineering design of intelligent buildings can't be synchronized with the main design because the owners can't put forward specific requirements in the demand analysis stage of most projects. Even if it is carried out simultaneously, the design only considers the public trunking and partial pipeline embedment, which cannot provide a more accurate list of materials and equipment. Therefore, bidders can only count the engineering quantity according to their respective optimization design results, among which the projects are different, and it is difficult for the bid evaluator to judge whether to calculate more or less. In addition, it is also manifested in the lack of system selection and equipment and materials market research, different intelligent engineering system configuration schemes, and great differences in unit prices of different brands and models of equipment and materials, which also leads to great differences in quotations from different bidders. 3. The bid evaluation method and process are unreasonable. At present, many intelligent projects refer to the bidding procedures and bid evaluation methods of electromechanical installation engineering or civil engineering in whole or in part, simply combine subsystems or equipment in a building block way, and adopt the reasonable lowest bid evaluation method, ignoring the characteristics of intelligent engineering as a system engineering. Due to the lack of intelligent professionals, not all members of the bid evaluation committee are experts in intelligent engineering cost. In the process of bid evaluation, the bid evaluation personnel are required to complete the evaluation of design scheme, equipment and material selection, technical service and quotation scheme. Due to the short time, it is difficult for the bid evaluation personnel to accurately judge the cost performance of a scheme. 4. After the contractor takes the lead in optimizing and deepening the design bidding, the contractor shall optimize and deepen the design of the construction drawing according to the requirements of the design institute drawings and bidding documents. Due to the influence of their own interests, contractors often take this opportunity to make adjustments that are beneficial to their own interests. For example, blindly improve the design standards, increase the redundancy of equipment and lines, and change the brands or models of some equipment and materials for reasons such as long supply cycle, unreasonable stacking of equipment, unreasonable spare parts configuration, etc. , so that the actual project cost greatly exceeds the winning bid price, resulting in out-of-control investment. Third, the intelligent building project cost control countermeasures Intelligent building project cost control can generally start from the investment decision-making stage, design stage, bidding stage, construction stage and completion settlement stage. 1. Cost control in investment decision-making stage The investment decision-making stage of intelligent building project is mainly to put forward project proposal, conduct feasibility study, determine investment estimate, and finally prepare design task book. At present, the main factors affecting the cost of intelligent building projects are the determination of reasonable project scale and construction standard level. At present, both owners and supervision units lack talents and engineering experience in intelligent engineering. Therefore, in the decision-making stage of the project, the owner or the relevant competent department, especially the national or local government's investment in major projects related to the national economy and people's livelihood, must extensively organize relevant experts in the industry to work together with the owner to determine the project scale and construction standard level realistically and reasonably according to the market survey data and the actual situation in the region, so as to make the project truly available and sufficient after completion. It is necessary to carefully analyze the functions, compare and select multiple schemes, and finally determine the intelligent system engineering construction scheme with advanced technology, reliable functions and reasonable economy; On this basis, the investment is estimated. When estimating, we should pay attention to the conversion or adjustment of application indicators, and at the same time, we need the competent government departments or industry associations to continuously collect and sort out relevant information and regularly publish relevant data and indicators for reference. 2. Cost control in design stage For any project, besides project decision, the design stage plays a decisive role in the function and cost of the project. Because the determined project design scheme, construction method, materials used, equipment types and models are of great significance to the project cost, the scheme optimization or slight changes in the design stage will have a great impact on the project cost. At present, there is a shortage of technical personnel engaged in the professional design of intelligent buildings, which leads designers to fail to fully understand and make designs that meet the needs of owners, leaving a lot of work to system integrators to solve in the secondary deepening design, which leads to the disheartening of countless investors. Therefore, engineering consulting should be introduced in the early stage of the project, or an experienced intelligent building engineering consulting company should be hired to undertake the design supervision responsibility in the design stage, supervise the design quality and progress, check the implementation of the quota design, and assist the owner in organizing the technical review of the preliminary design. Review the deepening design, and the contract can only be formally signed after the deepening design has passed the review. In deepening the design review, it is necessary to strictly control the contractor to change the brand and model of key materials such as equipment selection for various reasons. If the original bidding scheme does not meet the technical requirements, it is necessary to adjust the brand and model of equipment and materials, which must be demonstrated by experts and approved by the technical department and the investment control department, and try not to exceed the list of materials and equipment recommended in the original bidding documents, so as to prevent the contractor from increasing profits by changing equipment and materials. 3. Cost control in the bidding stage At present, most projects adopt the method of winning the bid at the reasonable lowest price. However, due to the characteristics of intelligent buildings, if the technical scheme to achieve low price is not fully demonstrated by experts and leaves the rationality and feasibility of the technical scheme, its superficial low price will have no practical significance. Therefore, we think it is fair and objective to adopt the comprehensive evaluation method. In addition to the technical scheme and tender offer, the design evaluation criteria should also consider factors such as operation and maintenance cost, warranty, after-sales service and service life. This method will increase the workload of the bid evaluation process, but it will play a multiplier role in the whole project. In addition, the intelligent project adopts the contract price mode of cost plus compensation, which can better improve the enthusiasm of contractors, urge them to actively optimize the design scheme, reduce the project cost and shorten the construction period. At the same time, the owner is also required to plan carefully in investment estimation, design budget, design budget and construction budget to accurately determine the target cost of the project. 4. Cost control in the construction stage In the process of project construction, project changes and modifications often occur. After the design change, it is necessary to follow up the calculation of the changed engineering quantity in time and compare it with the original engineering quantity, whether it will affect the original project cost plan and target. If it is exceeded, it is necessary to take economic, technical, organizational and contractual measures to ensure that the project cost target, project duration and other expenses are controlled within a certain range; And do a good job in the relevant economic and technical data of engineering design changes, so as to provide favorable guarantee for future engineering settlement. In addition, if the engineering design change causes the engineering cost to increase and the construction period to be delayed, a reasonable claim for the cost and construction period shall be made. 5. Cost control in the stage of completion settlement In order to effectively control the project cost of intelligent buildings, after the completion of the project, the completion settlement audit should be conducted according to the prescribed procedures. After the contractor submits the complete completion settlement data, the employer shall entrust an intermediary agency to audit in time, and the intermediary agency shall issue a written audit opinion within the time limit stipulated in the contract. Conditional, the completion settlement audit and financial accounts audit are entrusted by the employer, and the audit opinion is issued by the intermediary agency. Through the completion settlement audit, prevent the construction unit from overestimating and calculating, and control the construction investment within a reasonable range; Through the audit of financial accounts, the preparation of financial statements, inspection of the use of capital construction funds, evaluation of the investment benefits of project implementation, so as to effectively control the project investment. Four. Conclusion With the continuous development of science and technology and the continuous improvement of people's living standards, intelligent buildings will be more and more deeply involved in people's lives. Therefore, it is becoming more and more important to reasonably determine and effectively control the engineering cost of intelligent buildings. Starting from the whole process of intelligent building construction, grasping all stages of project construction is the premise and fundamental starting point of project cost control.

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