3 Preliminary design
3. 1. 1 preliminary design document
1 design description, including general design description and design description of each discipline. For the special dk involved in building energy-saving design, its design description should have the special content of building energy-saving design;
2 related professional juice design drawings;
List of major equipment or materials;
4. Project budget;
5. Relevant professional calculation (calculation is not a design document that must be delivered, but it should be compiled according to the requirements of relevant clauses in these Provisions).
3. 1.2 Sequence of preliminary design documents. 1 cover: project name, compilation unit and compilation year;
2. Title page: the names of the legal representative, technical person in charge, project person in charge and professional person in charge of the preparation unit, which shall be signed or sealed by the above-mentioned personnel; 3. Directory of design documents; 4 design specification; 5. Design drawings (can be a separate book); 6. Budget estimate (it shall be in a separate volume).
3.3 General Plan
3.3. 1 In the preliminary design stage, the professional design documents of the general layout shall include the design, specifications and design drawings.
Design description.
Design basis and basic data of 1
1) Summarize the main contents related to this major in the materials and instructions based on the scheme design;
2) Technical requirements for planning permission of this project (land use nature, road red line, building control line, urban green line, land red line, building control height, distance of various control lines for building concession, floor area ratio, building density, green space rate, sunshine standard, high-voltage corridor, entrance and exit location, number of parking spaces, etc.). ), as well as the general layout, surrounding environment, space processing, traffic organization, environmental protection, cultural relics protection, etc.
3) The compilation unit and date of the topographic map of this project, the coordinates and height system adopted;
4) What has been explained in the general design description can be omitted.
2 site overview.
3 General layout.
4 vertical design.
5 wentong organization.
6 Table of main technical and economic indicators (Table 3.3.2).
Note: 1 When the project (such as urban residential area) has corresponding planning and design specifications, the technical and economic indicators should be implemented according to them; 2 When calculating the floor area ratio, the underground building area below 0.00 is usually not included.
Design drawings.
1 regional location map (drawn as required).
2 General plan.
3 vertical layout.
3.4 building
3.4. 1 In the preliminary design stage, the design documents of the architectural specialty shall include design specifications and design drawings.
Design description.
2 design overview.
3 Simple sub-items in many projects can be fully described in the main feature table of construction projects (Table 3.4-2).
4. For the projects that need to be built by stages, explain the contents of the phased construction, the ideas of continuous construction and expansion and related measures.
5 curtain wall engineering, special roofing engineering and other engineering contents that need to be commissioned for design and processing.
6. Problems that need to be solved or determined when submitting for approval and other problems that need to be explained.
7. Description of building energy-saving design;
3.4.3 Design drawings,
1 plan.
2 front view. Should choose to draw the main elevation, elevation should be marked:
3 personal data. The profile should be taken at different floors and complicated internal and external spaces (such as atrium and adjacent floors or staggered floors), and the profile should accurately and clearly show the relevant parts intercepted or seen.
Content, and it should be said:
4 The local plan, elevation and profile of the original building adjacent to it shall be drawn.
3.5 structure
3.5. 1 In the preliminary design stage, the design documents of structural specialty should include design specifications, design drawings and calculations.
Design description.
1 project overview.
2 design basis:
3 building classification level. The following building classification grades and the codes or approvals on which they are based shall be stated:
4 main load (function) value:
Structural design of upper part and basement.
6 basic design.
7 structural analysis,
8 Main structural materials. Including concrete strength grade, reinforcement type, masonry strength grade, mortar strength grade, steel strand or high-strength steel wire type, steel type, special materials or products (such as finished cable, anchorage, cast steel.
Parts, finished bearing, shock absorber, etc. ).
9. Other contents that need to be explained.
1) Test requirements that should be put forward when necessary, such as wind tunnel test, shaking table test and joint test;
2) Further geological survey requirements and pile test requirements.
3) The requirements of the construction unit need to be further clarified;
4) Clearly state the items that need special review and other special demonstration for seismic fortification;
5) The main problems to be solved or determined in the process of submitting the design for approval.
Design drawings.
1 foundation plan and section dimensions of main foundation members;
2. The structural plan of the main floor, indicating the main positioning dimensions and section dimensions of the main components; Structures or members that cannot be clearly represented in the structural plan can be represented by elevation, section and axonometric drawing.
3 schematic diagram of main or key nodes and supports of the structure;
4 The positions and widths of expansion joints, settlement joints, seismic joints and post-cast strip shall be indicated in the corresponding plan.
Calculation book. The calculation book shall include necessary contents such as load statistics, overall structure calculation and foundation calculation, and shall be kept after proofreading.
3.6 Building Electricity
3.6.I In the preliminary design stage, the design documents of building electrical specialty should include design specifications, design drawings, lists of main electrical equipment and calculation sheets.
Design description.
1 design basis.
2 design scope.
1) According to the design task book and the design data of the bank, explain the design content of this major and the design division and division of labor interface with related majors;
2) Electrical system of the proposed building.
Transformer, distribution and power generation system.
4 lighting system.
5 electrical energy saving and environmental protection,
Lightning protection
7 Grounding and safety measures.
Automatic fire alarm system.
9. Security technology prevention system.
10 cable TV and satellite TV receiving system.
1 1 broadcast and sound reinforcement conference system,
12 echo signal and information display system. 1) system composition and functional requirements (including wired or wireless); 2) Installation parts and types of display devices and clocks; 3) Equipment specifications; 4) Selection and laying mode of transmission cable.
13 building equipment monitoring system; 1) system composition and control function; 2) Determine the location and equipment specifications of the computer room; 3) Selection and laying requirements of transmission cables.
14 computer network system. 1) system composition and network structure; 2) Determine the location of the computer room and the configuration of network connection parts; 3) Network operating system, network application and security; 4) Selection and laying requirements of transmission cables.
15 communication network system. 1) Determine the composition of telephone system, telephone wiring form and specifications of wiring equipment according to the engineering nature, function and short-term and long-term user needs; 2) When setting up the telephone switchboard, determine the location of the telephone room, the number of telephone trunks and various professional and technical requirements; 3) Selection and laying requirements of transmission cables; 4) Determine the design division, laying and lead-in position of local telephone trunk line; 5) Lightning protection grounding, working grounding mode and grounding resistance requirements.
16 integrated wiring system. 1) Determine the composition and setting standards of integrated wiring according to the nature, function, short-term demand and long-term development of the construction project; 2) Determine the specifications of switches and wiring equipment of the integrated wiring system; 3) Selection and laying requirements of transmission cables.
17 intelligent system integration. 1) integration form and requirements; 2) Equipment selection.
18 electrical system of other buildings. 1) system composition and functional requirements; 2) Determine the location and equipment specifications of the computer room; 3) Transmission cables shall be selected according to laying requirements.
19 main problems to be solved or determined in the process of design approval.
Design drawings.
1. Electrical general plan (if there is only a single design, this content is not needed).
2. Transformer and power distribution system. 1) high and low voltage power supply system diagram: indicate the switch cabinet number, model and loop number, secondary loop equipment model, equipment capacity, calculated current, compensation capacity, conductor model specification, user name and secondary loop.
Cycle scheme number; 2) Layout plan: The layout and main dimensions of high and low voltage switchgear, transformer, bus, generator, control panel, DC power supply and signal panel shall be included, and the drawings shall be in proportion; 3) Mark the floor height, gutter position and elevation (relative elevation) i of the room.
3 power distribution system (generally, only the internal operation diagram is drawn, not the outdoor diagram). Including the main trunk layout and vertical trunk system diagram (including the number of distribution and lighting trunk lines, distribution loops and substation loops).
4 lighting system. For special buildings, such as large stadiums and theaters, lighting plans should be drawn. The plan shall include the position of lamps (including emergency lighting), specifications of lamps and the position of distribution box (or control box).
Need to connect.
Automatic fire alarm system. 1) diagram of automatic fire alarm system; 2) Layout of fire control room equipment.
6 communication network system. 1) telephone system diagram; 2) telephone room equipment layout,
7 Lightning protection system and grounding system. Generally, drawings are not made, and only top plans and connecting maps are made for special projects.
8 Other systems. 1) system diagram of each system; 2) Layout diagram of equipment in each control room (this diagram is not needed if it is clearly stated in the corresponding system diagram).
3.6.4 List of main electrical equipment. Indicate the name, model, specification, unit and quantity of the equipment.
Calculation book. 1 load calculation of electrical equipment; 2 transformer selection calculation; 3 cable selection calculation; 4 system short-circuit current calculation; 5. Selection or calculation of lightning protection category and calculation of lightning rod protection range; 6 calculation of illuminance value and illuminance power density value; 7 The calculation results of each system should still be indicated in the design instructions or corresponding drawings; 8 What cannot be calculated due to conditions should be explained in the preliminary design, and wells should be supplemented in the construction drawing design.
3.7 Water supply and drainage
3.7. 1 In the preliminary design stage, the design documents of water supply and drainage specialty of building engineering should include design specifications, design drawings, list of main equipment and calculation sheets.
Design description. 1 design basis. 1) Extract the contents related to professional design from the approval documents and basic materials listed in the general design description; 2) The main laws and regulations implemented by this major and the main standards adopted (including the name, number, year and version number of the standard); 3) Municipal conditions on which the design is based; 4) Condition drawings and related materials provided by architecture and related disciplines.
Project overview: project setting, building fire protection category, building function composition, building area (or volume), building floors, building height and main technical indicators that can reflect the building scale, such as the number of hotel beds and theater.
The number of seats in hospitals and gyms, the number of outpatients in hospitals and the number of beds in inpatient departments, etc.
3 design scope, according to the design task book and relevant design data, explain the professional design content within the land red line (or building red line) and the special design content of the subcontracting professional company recognized by professional technology; When there are other units
* * * Same as design. It should also explain the design content related to this major.
4 outdoor water supply design of buildings.
5 building outdoor drainage design.
1) Brief introduction of existing drainage: When it is discharged into urban pipelines or other external open ditches, the section size, slope, elevation, location or inspection well number of pipelines and ditches shall be stated. When discharged into water bodies (rivers,
Rivers, lakes, oceans, etc. ), and should also explain the water discharge requirements and hydrological conditions (flow, water level);
2) Explain the drainage system (sewage and rainwater separate system or combined system) and the drainage outlet used in the design: If hoisting is needed, explain the hoisting position, scale, selection of hoisting equipment, design data and structural shape.
Type, area, emergency discharge measures, etc. ;
3) Use tables to explain or list the displacement of production and living drainage systems. When sewage needs to be treated, the sewage quality, treatment scale, treatment mode, technological process, equipment selection and general situation of structures should be explained.
And the standards reached after treatment;
4) Explain the rainstorm intensity formula (or rainstorm intensity adopted), return period, rainwater drainage, etc. ;
5) Pipes, interfaces and laying methods.
6 indoor water supply and drainage design of buildings.
7. Water-saving, energy-saving and emission-reduction measures: explain the technical measures adopted in the design of efficient water-saving and energy-saving and emission-reduction appliances, equipment and systems.
8. For buildings and structures that require vibration isolation and noise prevention, explain the technical measures taken by water supply and drainage facilities;
For water supply and drainage facilities in special areas (earthquake, collapsibility or expansion and contraction, frozen soil area and soft foundation), the corresponding technical measures are explained.
10 phased construction projects, should explain the design principles and basic data of the combination of early, recent and long-term.
1 1 Main problems to be solved or determined during design approval.
12 technical data to be provided in the design stage of construction drawing, etc.
3 7.3 Design drawings (for the preliminary design stage of simple projects-drawings are generally not needed).
1 general plan of outdoor water supply and drainage of the building.
1) Plane location, roads, etc. All buildings and structures, and mark the main positioning dimensions or coordinates, elevation, north arrow (or wind rose map), proportion, etc. ;
2) Plane position of water supply and drainage pipeline, indicating the diameter of the main pipe and drainage direction; Draw the positions of water supply and drainage structures such as sluice wells, fire hydrants, water meter wells, inspection wells and septic tanks;
3) Control the elevation and position of the connection point between outdoor water supply and drainage pipeline and urban pipeline system;
4) The pipe plane position of fire fighting system, reclaimed water system, cooling circulating water system, reuse water system and rainwater utilization system shall be marked with the pipe diameter of the supervisor;
5) Control elevation of connection points between reclaimed water system, rainwater utilization system and structures.
2. General plan of water supply and drainage of local buildings.
3 building indoor water supply and drainage plan and system schematic diagram.
3.7.4 List of major equipment. List the name, performance parameters, counting unit and quantity of main equipment, and indicate the instructions for use (it should be listed separately).
3.7.5 Calculation sheet. 1 Calculate various water consumption and displacement; 2. Calculation of water balance of reclaimed water; 3. Related hydraulic calculation and thermal calculation; 4 equipment selection and structural size calculation. 3.8 heating, ventilation and air conditioning
3.8. 1 In the preliminary design stage, the design documents of heating, ventilation and air conditioning should have design descriptions. In addition to small and simple projects, the preliminary design should also include design drawings, equipment lists and calculations.
Design specification.
1 design basis.
2. Briefly describe the construction site, scale, function, number of floors and building height.
3 design scope. According to the design task book and related design data, the internal unity and scope of the design of this major and the design division of labor with related majors are explained.
4 Design and calculation parameters.
5 heat. 6 air conditioning. 7 ventilation. Fire prevention measures for smoke control, ventilation and air conditioning systems. 9 energy-saving design. Various energy-saving measures taken according to the requirements of energy-saving design.
Note: the energy-saving measures of 1 include metering, arm arrangement of regulating device, data of increasing fresh air ratio of all-air air conditioning system, setting of heat recovery device, performance coefficient or thermal efficiency of selected refrigeration and heating equipment (not lower than the requirements of energy-saving standards), variable air volume or variable water volume design, etc.
Energy-saving design not only meets the requirements of current national energy-saving standards, but also meets the requirements of current local energy-saving standards in provinces and cities where the project is located.
10 waste gas emission treatment, noise reduction and vibration reduction and other environmental protection measures.
1 1 Main problems to be solved or determined during design approval.
Equipment list. List the name, performance parameters, quantity, etc. Main equipment (see table 3.8.3).
Design drawings.
1 HVAC preliminary design drawings generally include legend, system flow chart and main plan. All kinds of pipes and air ducts can draw single-line drawings.
The system flow chart includes the processes of cold and heat source system, heating system, air conditioning water system, ventilation and air conditioning system, smoke control and other systems. The service area name of the system, the area and floor where the equipment, main pipes and air ducts are located, and the equipment number, main pipe size and main pipe diameter, main accessories, building floors and elevation of the system shall be indicated.
Note: When the ventilation and flue control system, smoke control system and other systems do not span multiple floors, and the system is simple and can be completely represented in the plan. You can only draw a plan, not a system flow chart.
3 heating scheme. Draw the position of the radiator, the entrance, direction and system number of the main heating pipe.
Ventilation, air conditioning and smoke prevention plan. Draw the position of equipment, the direction of air duct and pipeline, the position of tuyere, the control elevation and pipe diameter of main pipeline. For large and complex projects, it should also be marked, and local sections should be drawn at the complex intersection of pipelines.
5 floor plan of cold and heat source machine room. Draw the location of main equipment and the direction of pipeline. Mark the equipment number, etc.
Calculation book. For HVAC engineering, the heat load, cooling load, air volume, cold and hot water volume of air conditioning, cooling water volume and the selection of main equipment should be calculated preliminarily.
3.9 Thermal Power 3.9. 1 In the preliminary design stage, the professional design documents of thermal power should have design descriptions. In addition to small and simple projects, the preliminary design should also include design drawings, list of main equipment and calculation books. Design description. 1 design basis. 1) The main laws and regulations implemented by this major and the main standards adopted (including the name, number, year number and version number of the standard); 2) Approval documents and basic data related to the design of this major (water quality analysis, geological conditions, groundwater level, frozen soil depth, fuel types, etc.). ); 3) Design data provided by other disciplines (such as general layout, heating zoning, heat load and medium parameters, development requirements, etc.). ) .2 Design scope.
1) According to the design task book and relevant design data, explain the design scope and division of labor undertaken by this major (when other units * * * design together); 2) Consideration of future development or expansion; 3) The reconstruction and expansion project shall explain the utilization of the original buildings, structures and equipment. 3 boiler room. 1) Determination of heat load and selection of boiler type: Determine and calculate the heat load, and list the heat load table of each heat user; Determining heating medium and parameters; Determine the boiler form, specification and quantity, and explain the standby situation.
Winter and summer conditions and the number of operating units;
2) Thermal system: Thermal system shall be explained, including hot water circulation system, steam and condensate system, water treatment system, water supply system, constant pressure water supply mode, sewage system, heating regulation mode and various kinds of water.
Number of pumps and standby conditions, etc.
3) Fuel system: explain fuel type, low calorific value of fuel, fuel source and flue gas emission; When the fuel is coal, explain the coal type, determine the coal treatment equipment, metering equipment and conveying equipment, determine the flue gas dust removal and desulfurization equipment, and determine the slag removal equipment; When the fuel is oil, explain the type of oil, briefly introduce the fuel system, explain the location, size and quantity of oil tanks, storage time and transportation mode of oil; When the fuel is gas, explain the type of gas, determine the gas pressure and determine the location of the pressure regulating station;
4) Technical indicators: List building area, heating, steam supply, fuel consumption, ash discharge, demineralized water consumption, tap water consumption and electricity consumption.
4 other power station rooms.
1) heat exchange station: explain the heat supply, heating medium and parameters; Determining the heat load; Briefly describe the thermal system, including hot water circulation system, steam and condensate system, water treatment system, constant pressure water supply mode, etc. Determine the heat exchanger and other supporting auxiliary equipment;
2) Diesel generator room: explain the oil supply system and smoke exhaust mode;
3) Gas pressure regulating station: determine the position of the pressure regulating station, determine the gas consumption, briefly describe the flow of the pressure regulating station, determine the parameters before and after the pressure regulator, and select the pressure regulator;
4) Filling station room: explain the use, dosage and parameters of various gases, briefly describe the gas supply system and select the main equipment;
5) Gas cylinder assembly station: determine the use and dosage of gas, briefly describe the pressure regulation and gas supply mode, briefly describe the gas cylinder assembly station process, determine the parameters before and after the pressure regulator, and determine the capacity and quantity of gas cylinder groups.
Indoor pipeline: determine various media loads and their parameters, explain the selection of pipelines and accessories, explain the laying mode of pipelines, and select insulation and protection materials for pipelines.
Outdoor pipe network: determine various media loads and their parameters, explain the direction and laying mode of pipelines, select pipelines and accessories, explain anti-corrosion methods, and select insulation and protection materials for pipelines.
7 energy saving, environmental protection, fire control and safety measures.
8. The main problems that need to be solved or determined when the design is submitted for approval.
Design drawings.
1 boiler room.
1) Thermal system diagram: It shows hot water circulation system, steam and condensate system, water treatment system, water supply system, constant pressure water supply mode, sewage system, etc. Indicate the legend symbol, main pipe diameter, medium flow direction and equipment number (which should be consistent with the number in the equipment list); Indicate the location of local installation measuring instruments, etc.
2) Plan: draw the plan of boiler room, auxiliary room and chimney, and indicate the building axis number, size, elevation and room name; And arrange the main equipment, indicating the positioning size and equipment number (which should be consistent with the number in the equipment list). For a large boiler room, draw a regional layout according to the situation, showing the size and relative position of the boiler room and related structures.
2. Other power stations: draw the plane layout and system schematic diagram.
3. Indoor and outdoor power pipelines: outdoor power pipelines shall be plotted as required.
3.9.4 List of major equipment. List the names, performance parameters, units and quantities of main equipment, and indicate the boiler efficiency of boiler equipment. Calculation book. Including load calculation, main equipment selection calculation, hydropower and fuel consumption calculation, hydraulic calculation of main pipelines, etc. The main calculation results are contained in the relevant parts of the design specification.
3. 10 approximation 3. 10. 1 The design budget of the construction project is an important part of the preliminary design document. The budget document should be a separate volume. The design budget document consists of cover, signature page (title page), compilation description, total budget table of construction project, other expense table, comprehensive budget table of single project and unit project budget table.
3. 10.2 cover page and signature page (title page), refer to article 3. 1.2.
3, 10.3 Description of budget estimate.
1 project overview: briefly describe the project construction site, design scale, construction nature (new construction, expansion or reconstruction) and main features.
2 compilation basis:
3 Budget preparation scope.
4. Description of other special issues.
5. Description of the estimated results.
3. 10.4 Total budget estimate of the construction project. It consists of engineering costs, other costs, reserve funds and related costs that should be included in the total investment of the project budget. Part I: Project cost. According to the comprehensive budget table of each individual project.
Part II: Other expenses. Including construction land fees, site preparation and temporary facilities fees, construction unit management fees, survey and design fees, design consulting fees, construction drawing review fees, supporting facilities fees, research and test fees, and preliminary work fees.
Fees, environmental impact assessment fees, project supervision fees, bidding agency fees, project insurance fees, office and living furniture purchase fees, personnel training fees, joint debugging fees, etc.
Part III: Reserve Fund. Including basic reserve funds and price difference reserve funds.
Part IV: Related expenses that should be included in the total investment of the project budget. Including loan interest during the construction period, working capital and fixed assets investment direction adjustment tax.
3. 10.5 other expenses table. List the name of the expense item, the calculation base of the expense, the rate and amount, and the relevant documents and document numbers of the national and local governments on which it is based.
3. 10.6 table of comprehensive budget estimates for individual projects. According to each single project, summarize the project budget of each unit. Technical and economic indicators should be indicated in the table, and economic indicators include the unit, quantity and unit cost of measurement indicators.
3. 10.7 unit project budget. It is composed of engineering budget estimates of architecture (civil engineering), decoration engineering, mechanical and electrical equipment and installation engineering, outdoor engineering and other majors.
1 The budgetary estimate of the construction project is based on Article 3. 10.3, which consists of the contents of partial projects and is priced according to regulations.
2. The decoration project budget is based on Article 3. 10.3, and is composed of the contents of partial projects, and is priced according to regulations.
Mechanical and electrical equipment and installation works are composed of building electricity, water supply and drainage, heating, ventilation and air conditioning, heat energy and power. According to the compilation basis of Article 3 10.3, the budgetary estimate of each major is composed of the contents of partial projects, which are priced according to regulations.
Outdoor engineering consists of earthwork, road engineering, square engineering, fences, gates, outdoor pipelines, landscaping, etc. The budgetary estimate of each major shall be priced according to Article 3. 10.3.
In the preliminary design stage, the unit project budget should generally consider sporadic project costs.