What You Need to Know About the Basic Knowledge of Glass Curtain Wall Design! -Ruminum Profiles Supplier

1. Calculation steps for curtain wall design

(1) The architectural design and relevant materials of the proposed venue (building design overview, floor chart, facade, section view map and node map), and after digestion building design drawings, determine the performance parameters of the project curtain wall design, such as earthquake resistance, earthquake resistance Design (generally set defense design for 7 degrees and 8 degrees), basic wind pressure (check the basic wind pressure value of 136 cities across the country in the GB5009 appendix), ground roughness category (A, B, C, D), etc.

(2) Select the building profile series (cross -section design) and glass type selection calculation. First, find the minimum inertia and resistance of the geometric feature parameters of the selected profile section; then conduct the profile design and then incorporate it into the project verification calculation;

(3) Analyze the specifications and glass power and calculate the internal force;

(4) The maximum value of the combination effect and the maximum value of its carrying capacity (check the calculation at as few conditions as possible);

(5) Calculate the strength and deformation of the cabinet, if it cannot meet the requirements, return

(3) Re -select the design of the profile series and section geometric parameters;

(6) Calculate glass and deformation (stiffness). If you cannot meet the requirements, return

(4) Select the glass type and then calculate; (7) the finite element software calculation of the material insulation K value to determine the size of the energy -saving structure (GB50189); Connect to embedded parts; anchoring computing of embedded parts; (9) Qi and water density design (gap, seal, drainage, etc., GB / T15226 / 28); K check and hot box test; (11) sound insulation design and calculation; (12). The determination of the surface deformation of the curtain wall and the selection of impact resistance (GB / T18250); (13) Fire prevention design and structural treatment (GB50016 / GB50045) ; (14) Seismic design (GB50057 / 11); (15) Lighting GB / T18091); (16) The intensity check calculation of other components (lids, bolts, anchoring power, etc.); 2. Basic requirements for glass curtain wall building design

(1) Generally stipulates that the design of the glass curtain wall is completed by the building design unit and the curtain wall design unit. The main task of the architectural design department is to determine the lines, colors, ingredients and glass types of the curtain wall, the virtual and true combination of the curtain wall, and coordinate the relationship between the curtain wall and the overall and the environment of the building; The specific structure of the curtain wall is required. Construction node design. B. The facade of the glass curtain wall should adapt to the indoor space combination. When determining the glass plate, the utilization rate of the original glass should be effectively improved, and the processing capabilities of production equipment such as tempered, coating and mezzanine glass should be adapted to the processing capacity of production equipment. C. As a building's external maintenance structure, the glass curtain wall itself requires good qi.

If too much windows are opened and the opening area is too large, heating and air conditioning consumption will be increased, the overall effect of the facade will be affected, and the possibility of rainwater leakage will be increased. JGJ102-96 once stipulated that the open area must not exceed 15 %, but there should be some buildings, such as schools, auditoriums, etc. Both lighting and ventilation are necessary.

Therefore, the new specification JGJ102-2003 canceled this quantitative regulation.

Therefore, in actual engineering, the number of windows should be considered from the aspects of architectural functions, beauty, energy saving and environmental protection.

(2) Performance and test requirements A. The performance of wind pressure, gas tightness, water density, heat preservation and sound insulation of glass curtain walls should meet the requirements of the GB / T15225 of the "Procedure Step Wall Physical Performance Classification". B. For the deformation performance of the glass curtain wall, the seismic design should be designed as three times the displacement limit between the elastic layer of the main structure.

(3) Structural design A. The structural design of the glass curtain wall should be in line with the principles of safety, practicality and beauty, and is easy to manufacture. Installation, maintenance and partial replacement; And leave a 2mm gap between the columns and the beams; d. The width of the splicing seam between the glass plates between the curtain wall should be greater than 10mm; the unit board of the glass curtain wall should not pass through the deformation seam of the main structure. The design stitches design corresponding to the deformation seam of the main structure building should meet the deformation requirements of the main building; f. The fire layer of the glass curtain wall must prevent flames from spreading in the building. In hours, the thickness shelf of its galvanized iron plate is not less than 1.5mm; G. G. glass curtain wall is connected to the building structure, so it must be reliably connected to the main structure system and keeps unimpeded electricity.

The usual design is to form a 10MX10M lightning protection network. The copper line is not less than 25mm2, the flat steel section is not less than 5x40, and the diameter of the round steel is not less than 1mm.