Green building engineering cost and cost control?

With the development of China's construction industry, people pay more and more attention to the environmental performance of buildings. Green building construction is the mainstream trend of construction industry development and an important factor to ensure the harmonious development of economy, environment and social construction. Engineering cost and cost control are important contents to ensure the economy of construction projects, which are closely related to the actual performance and quality of engineering projects. The following is the introduction of the main contents of green building project cost and cost control brought by Zhong Da Consulting for reference.

1 cost composition and influencing factors of green building projects

Green building is a building that avoids energy consumption and resource consumption to the maximum extent, reduces waste discharge, and provides people with sustainable development and harmonious coexistence with the natural environment. The construction principle of green building is to integrate the surrounding environment, ecosystem and building itself into an organic whole to ensure the harmonious coexistence of people and environment. From the project planning to the completion of the project, the construction personnel always implement the concept of energy conservation and environmental protection in all steps, so that the building has good ecological health and thermal insulation performance. With the gradual expansion of the use of green buildings, it has become an inevitable development trend to promote the concept of green buildings in China. The cost of green building engineering consists of many parts, such as basic expenses such as materials, labor and machinery use fees, as well as management fees and taxes of enterprises. Among them, the core costs are material costs, labor costs and mechanical equipment use costs. Management expenses include personnel management expenses, office space expenses, production and operation expenses, etc. With the increasing cost of building materials in China, the project cost is getting higher and higher. How to control the project construction cost has become an important construction content. The main factors that affect the cost of green building are the choice of building scheme in the planning and design stage and the choice of engineering technology in the construction process. In the planning stage, it is necessary to clearly analyze and discuss the architectural style, site selection, structural modeling and construction standards of the building, and make clear the details, so as to budget the construction cost. Although the planning and design cost of construction projects accounts for a small proportion of the total cost, it is directly related to the operation and cost control of later construction projects. Secondly, the choice of construction scheme is an important part of cost consumption, and the choice of technology and materials will directly affect the construction cost of green buildings. Therefore, the key factors affecting the construction cost are the planning and design stage and the construction and maintenance stage.

2 Analysis of cost control measures for green building projects

2. 1 Cost control in planning and design stage

Green buildings have high requirements for the selection of building materials and the design of building structures. Therefore, in the process of project implementation, the project leader must do a good job in the feasibility study of the project in advance, fully consider the shape and structural layout of the building, carry out macro-planning, and reasonably choose the building standard and scale according to the building requirements, so as to facilitate the later construction and later maintenance. When planning the design scheme, the budget cost should be fully considered, and the building scale and standard suitable for construction should be selected, so as to avoid that the scale of the selected project is too large and the building standard is too high, which will lead to the high cost in the later period and the emergence of unfinished projects. On the other hand, while planning the architectural design, it is necessary to make a concrete analysis of the project economy, control and study the cost of the scheme from the perspective of project cost, conduct a comprehensive and objective analysis and evaluation of the future construction and sales, and optimize the architectural scheme according to the investment limit of the construction investor. Different from ordinary buildings, green buildings have higher requirements for environmental performance and building comprehensiveness. In order to ensure that project decision makers can make correct judgments, environmental and economic indicators need to be placed in an important position in the design and planning stages. In the feasibility study of the project, we should fully understand the concept of green building, adopt the principle of ecological building, fully combine natural factors in the planning and construction process, reduce the project cost and ensure the all-round development of building products and natural environment. In the stage of project planning and design, the project leader must recognize the characteristics of green buildings and adopt green construction technology. For example, when building site selection, the shape, orientation and structure of the building should be selected in combination with the local ecological environment and climate characteristics, so as to organically combine the building with the surrounding environment and create a comfortable and pleasant building environment. In the process of green building design, the principle of architectural integrity should be implemented, and the design should be combined with local topography, geomorphology, hydrology, history and culture to maintain the affinity between the building and the environment. Furthermore, pay attention to fine design in the design process. Green building requires higher overall structure of the building, and many green design application schemes are decided in the design. Only by doing fine design in the early stage can we avoid frequent design changes in the later stage of construction and choose the best scheme for construction at the most appropriate time. First of all, designers need to clearly understand the requirements of the construction party for the structure and use of various parts of the building, comprehensively consider the principles of architectural structure design, and make targeted choices to ensure the rationality of the architectural scheme. Second, builders need to accurately budget the construction cost, investment cost and construction cost of enterprises according to the design scheme, and formulate corresponding cost control measures in advance to ensure the maximum benefit of the project. Thirdly, combining the principles of value engineering and quota design, comprehensively evaluate the cost and use function of construction projects, choose excellent design schemes, optimize the project structure, reasonably control the project construction investment, and use the funds in the most important part.

2.2 Cost control in construction and maintenance stages

The cost control in the green project construction stage is the most effective control stage, so choose the appropriate contractor to determine the cost control. In the construction stage, according to the actual characteristics of the project, the construction scheme should be arranged reasonably, and the construction site and steps should be planned and arranged reasonably to avoid the harsh ecological environment caused by the project construction. Secondly, in the process of green project construction, we should pay more attention to the surrounding hydrological environment and many other factors. In the process of designing the construction organization scheme, using energy-saving and environment-friendly building materials as much as possible, selecting new technologies and new processes according to the construction content, and constantly optimizing the construction quality can also effectively improve energy efficiency. On the other hand, the construction party needs to pay attention to the selection and procurement of materials, choose low-pollution green materials as much as possible, and control the procurement of materials considering the construction cost. As we all know, materials are the key part of construction cost control and account for a high proportion in the construction cost of the whole project. In order to ensure the construction cost, it is necessary to select building materials, control the amount of materials and post-maintenance, purchase materials in strict accordance with China's requirements for green and buildings, recycle waste materials and dismantle materials, so as to reduce the construction cost of buildings. The design scheme, building materials and construction technology of green building selection are determined in strict accordance with the concept of green building. In order to ensure the quality of the building and its long-term use, it is necessary to strengthen the post-maintenance of green buildings, which is also the last link of cost control of green building projects. Because the building has been completed and may even be put into use, this link is often easily overlooked. In order to avoid the cost control exceeding the standard during the maintenance period, we need to pay attention to the following two aspects in the process of cost control at this stage: First, we need to maintain the surrounding environment of the building and save water and energy to improve the quality maintenance during the use of the building, and we can also implement a management system for the use of property consumables to avoid exceeding the standard. On the other hand, the person in charge of maintenance needs to choose a reasonable maintenance scheme to ensure the quality of building maintenance, reduce maintenance costs and maximize enterprise benefits.

At present, the marketization process in China is getting faster and faster. With the development of economy, energy conservation and environmental protection issues emerge one after another. In this market background, the promotion and use of green buildings have attracted much attention. The concept of environmental protection, green and economy is always practiced in the design and use of green buildings, and the green concept is implemented in structural design, material selection, construction technology and post-maintenance Control the cost of green buildings, from the beginning of project planning and construction to the end of project maintenance, and control the project cost within a certain range, so as to obtain higher profit space.

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