How to understand the legend of hydropower construction drawing;
First, know the map?
1, first look at the site layout, understand the general situation of the project and the influence of surrounding buildings on the project. ?
2, see the construction organization, probably understand the specific construction situation of the project. ?
3. Look at the construction structure diagram and architectural diagram, and combine them to have an overall understanding of the project. ?
4. For details, please refer to the construction drawing combined with the structural construction atlas, and the construction drawing combined with the architectural construction atlas. ?
5. Look at the structural drawing from the axial dimension, and check whether there is any discrepancy between the shear wall, column, beam, plate and other steel bars before and after, and whether the structure is consistent with the architectural drawing. Whether the site elevation of beam and slab is correct, whether the bathroom panel is marked in detail, whether the settlement joint structure treatment is appropriate, whether the staircase method is detailed, and whether all kinds of holes are detailed. ?
6. The architectural drawing shows whether the layout of each floor is reasonable, whether the layout of non-bearing walls and bearing walls is reasonable, whether the layout of beams and columns is beautiful, whether the position and size are consistent with the structural drawing, and whether there are any omissions in various holes. ? 7. Are the building practices reasonable, such as waterproof materials, paints, tiles, etc?
Second, the architectural drawings symbol daquan? In architectural design:?
L stands for beam, ll stands for continuous beam, ql stands for ring beam, jl stands for foundation beam, tl stands for ladder beam, dl stands for ground beam, Z stands for column, gz stands for constructional column, kz stands for frame column, M stands for door and C stands for window. @ means rebar spacing φ means rebar type. ?
1, a formal architectural design should have the signature of the designer, the signature of the person in charge of the architectural drawings, the signature of the reviewer, the signature of the proofreader, and the seal and the registered practice seal. ?
2. In architectural design drawings, the length is generally in mm, unless otherwise specified; Pay attention to the combination of "building material description" and other drawings when reading drawings. In the "Description of Building Materials", each item is marked with "√", which is the practice adopted in the design. What is not ticked is not the design practice. ?
3. As shown in the architectural design: "c20 reinforced concrete jl(240400) with 4φ 16 wound φ 6 @ 200 stirrups." The foundation beam of reinforced concrete structure with strength C is 240mm wide and 400mm high. It is equipped with four main steel bars with a diameter of 16mm (16 mm), and a rectangular ring of steel bars with a diameter of 6 mm is hoop every 200 mm
4. For example, in architectural design: "c20 concrete column (240240) with 4φ 12 hoop] 6 @ 200." Where "] 6 @ 200" is a nonstandard label and should be "φ 6 @ 200".
It is interpreted as: a c20-strength small beam of reinforced concrete structure, with a section length of 240mm and a width of 240mm, is equipped with four main bars with a diameter of 12mm (12mm), and a rectangular steel mesh with a diameter of 6cm is hoop every 200mm. The height of the column depends on the height of the floor marked by the project minus the height of the ring beam and the thickness of the panel, because the ring beam and the panel are poured together. ?
5. For example, m5 cement mortar is used to build mu 10 shell lime-sand brick in the architectural design. "m5" indicates the strength grade of cement mortar and "mu 10" indicates the strength grade of lime-sand brick. Mu 10 represents the average compressive strength of lime-sand brick ≥ 10mpa. ?
6.ql stands for ring beam and ring beam, which is usually used in brick-concrete building structure (mixed structure), that is, the wall is built first, and then the ring beam and the reinforced concrete on the surface are poured. ?
7, the practice of frame structure, namely pouring column, beam, beam, plate, etc. Dismantle the formwork and then build the wall.
8. According to the requirements of quality supervision, the contractor may be required to provide the certificates of reinforcement (each batch), cement (each batch), mu 10 lime-sand brick (each batch) and cement concrete test certificate. ?
Extended data:
Hydropower construction drawing: including water construction (building water supply and drainage construction drawing) and electric construction (building electrical construction drawing). Collectively referred to as hydropower construction drawings. The construction drawing of building water supply and drainage is one of the components of a single project, which is the main basis for determining the project cost and organizing the construction, and also the important information for the state to determine and control the capital construction investment.
Plumber construction drawing design requirements:
According to the requirements of the design task, the construction drawing of building water supply and drainage should include layout plan (general plan and building plan), system diagram, construction details (details), design and construction instructions and list of main equipment and materials.
The layout of water supply and drainage pipelines and equipment shall be clearly indicated in the water supply and drainage plan.
The water supply and drainage inside the building is determined by the selected water supply and drainage mode. The bottom and basement should be painted; If there is water tank and other equipment on the top floor, it must also be plotted separately; If the type, quantity and location of sanitary equipment or water-using equipment in the middle floor of a building are the same, a standard floor plan can be drawn, otherwise it should be drawn layer by layer.
Several types of pipelines can be drawn on the plan. If the pipeline is complicated, it can also be plotted separately, based on the principle that the drawings can clearly express the design intention and the number of drawings is relatively small. In the plan, pipelines and equipment should be highlighted, that is, thick lines are used to represent pipelines, and the rest are thin lines. The scale of floor plan is generally the same as that of architectural drawing, and the common scale is 1: 100.
The water supply and drainage plan should express the following contents: the type, quantity and location of water rooms and water equipment; Pipes, pipe accessories, sanitary appliances and water equipment with various functions, such as fire hydrant box, nozzles, etc., shall be represented by legends; The diameters and slopes of various horizontal main pipes, risers and branch pipes shall be marked; Each pipe should be numbered.
References:
Baidu encyclopedia hydropower construction drawing