Basic knowledge of door and window design that doo

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Doors and windows, as an integral part of the building envelope structure, have different construction functions and requirements, whether it is advanced construction or ordinary residence. Only by satisfying the construction effect, rain proof, lighting, ventilation, vision, thermal insulation, sound insulation and other functions, can we provide a comfortable and quiet indoor environment for everyone and fulfill the requirements of social sustainable development. Aluminum alloy doors and windows are the most widely used type of doors and windows. Here are some basic ideas and views on how to plan aluminum alloy doors and windows that meet the construction requirements and functions

I. construction planning of doors and windows

doors and windows are the units of construction, the decoration symbols of facade effect, and ultimately show the characteristics of construction. Although different buildings have different requirements for the planning of doors and windows, and the detailed division of doors and windows is ever-changing, some rules can still be found

1. The division of the facade of doors and windows should conform to the aesthetic characteristics. During the division planning, the following factors should be considered

(1) the harmony of the division share. For a single glass plate, the length width ratio should be close to the golden section ratio as much as possible. It should not be planned into a square and a narrow rectangle with a length width ratio of more than 1:2. The height of the transom is usually 1/4~1/5 of the frame height, which should not be too large or too small

(2) the vertical division of doors and windows should not only have certain rules, but also show changes, and seek rules in the change; The grid lines are dense; The division of equal distance and equal scale shows preciseness, solemnity and strictness; Non equidistant free division shows rhythm, vividness and motion

(3) at least the horizontal dividing lines of doors and windows in the same room and wall should be on the same horizontal line as far as possible, and the vertical lines should be aligned as far as possible

(4) when planning the facade of doors and windows, we should consider the requirements of the overall effect of the construction, such as the virtual and real contrast, light and shadow effect, symmetry, etc

2. The color matching of doors and windows (including the color of glass and profile)

the color matching of doors and windows is an important part that affects the final effect of the construction. The color of doors and windows should be matched with the construction characteristics, and the color should be determined with the construction planner, the owner and other parties

3. Personalized planning of doors and windows

it can plan a common facade of doors and windows according to customers' different preferences and beautiful points

4. permeability of doors and windows

it is best not to set transoms and mullions within the field of vision height of the main vision part (1.5m ~ 1.8m) to avoid blocking the field of vision. Guanhao doors and windows tells you that some doors and windows need to choose glass with high light transmittance, which may require a larger open field of vision for easy viewing of outdoor scenery

5. lighting and ventilation of doors and windows

the ventilation area of doors and windows and the number of movable fans should meet the ventilation requirements of the construction; The daylighting area of a door and window shall also meet the requirements of the rules of the standard for daylighting planning in construction (gb/t50033-2001) and the construction planning drawing. Rule 4.2.4 of the standard for energy conservation planning of public buildings (GB 50189-2005): the area ratio of window to wall in each direction of the construction of external windows should not be greater than 0.70. When the window wall area ratio is less than 0.40, the visible light transmittance of the glass should not be less than 0.4

II. Safety planning of doors and windows

1. Wall thickness requirements of aluminum profiles for doors and windows

wall thickness of aluminum profiles for windows conforms to the current national standard high precision level, and the minimum wall thickness of stressed components is ≥ 1.4mm

1. The stressed bars of doors and windows (such as the light hook and groove of the sliding window, the middle column, the sliding with light, the sliding with light, the double edge, etc.) must be subject to strict compression accounting. When the profile is used as the stressed bar, its profile wall thickness should be selected through accounting according to the application conditions. The stressed components of aluminum alloy doors and windows shall be determined by experiment or accounting

2. Safety plan for door and window glass

(1) selection of glass: the thickness of glass is determined by accounting and should not be less than 5mm. Safety glass (toughened glass or laminated glass) must be used for the construction of doors and windows in the following parts:

(a) outward opening windows shall be built on the 7th floor and above

(b) window glass with an area greater than 1.5 ㎡

(c) French windows whose bottom edge of glass is less than 500mm from the final decoration surface

(d) skew windows with an angle of less than 75 ° to the horizontal and more than 3m from the indoor ground

(E) framed glass doors with a glass area greater than 0.5 ㎡

(f) the frameless glass door shall be tempered glass with a thickness of not less than 10mm

(2) the overlapping amount of glass and notch and other cooperation standards should conform to the rules of tables 5 and 6 in aluminum alloy windows (gb/t8479)

(3) the glass and aluminum alloy frame grooves should be flexible touched with rubber gaskets

(4) the glass should be mechanically ground, and the mesh of the grinding wheel should be more than 180 mesh

3. selection and planning of hardware accessories

(1) when selecting hardware accessories, try to choose goods with guaranteed quality. The quality grade of hardware accessories should be consistent with the quality grade of doors and windows. The structure and shape of hardware accessories should be consistent with the profile, with harmonious and beautiful color, accurate function, sensitive operation and convenient device

(2) hardware fittings should be complete, standard, reliable and accurate. After the installation, the doors and windows have beautiful appearance, sensitive and convenient opening, and shall not be deformed, prevented or bumped

(3) stainless steel products shall be preferred for exposed fasteners of hardware fittings

(4) multiple locking points should be selected when opening doors and windows horizontally and sliding doors and windows with large scale are closed, otherwise the air tightness will be greatly reduced under the effect of negative pressure difference. Considering the convenience of operation, it is best to use the handle or driver with multiple locking points





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