[Glass Curtain Wall] Definition of Glass Curtain Wall Glass Curtain Wall Construction Process

Glass curtain wall is a beautiful and novel method of building wall decoration, which is the distinctive feature of modern high-rise buildings. The glass curtain wall looks good from the outside and has a wide view from the inside. In winter, it increases sunlight radiation and raises indoor temperatures. The curtain wall is not only simple, luxurious and modern in shape, but also reflects the surrounding scenery and has a good decorative effect. It also incorporates walls and Windows, which greatly reduces the weight of the building. It has the advantages of light weight, strong decoration, convenient installation and construction. Let's take a look at the definition of glass curtain wall and the sequence of glass curtain wall construction technology.

Definition of glass curtain wall

Definition: A glass curtain wall consisting of a panel and a glass rib or point support device and a supporting structure is an all-glass curtain wall.
Features :1, transparent effect, can make the indoor space and outdoor environment of natural harmony.
2. Exquisite components, beautiful structure, realize the perfect integration of exquisite metal structure and glass decorative art.
3, supporting a variety of structures to meet the needs of different building structures and decorative effects.
4. The glass and the connecting claw are connected by the ball joint, which has a strong ability to absorb deformation.
Glass curtain wall function

The glass curtain walls of modern high-rise buildings use a combination of mirror glass and ordinary glass, filled with dry glass or inert gases. Insulating glass is divided into two and three layers. Two layers of insulating glass are sealed by two layers of glass to form a sandwich space. Triply glass is two of three layers of glass. Insulating glass has the advantages of sound insulation, heat insulation, frost proof, moisture proof, wind pressure resistance and so on. According to the measurement, when the outdoor temperature is -10℃, the temperature in front of the single-layer glass window is -2℃, and the indoor temperature using three-layer insulating glass is 13℃. On a hot summer day, the double-glazing blocks 90 percent of the sun's radiant heat. Sunlight can still get through the glass walls, but most of it doesn't feel the heat. The use of insulating glass curtain wall can warm in winter and cool in summer, greatly improving the living environment.

Glass curtain wall construction process

Glass curtain wall installation sequence: construction preparation → measurement wiring → embedded parts installation processing → connecting Angle installation → column installation → beam installation → structural glass assembly production installation → weatherproof silicone sealant cleaning inspection → completion acceptance.

Selection of glass curtain wall

1. Check the design requirements
1) The drawings should be complete and detailed, and the expression should be standardized. Description of construction drawings and construction requirements, joint calculation, anchorage calculation of embedded parts, stress and deformation calculation of curtain wall keel frame under vertical load and horizontal load, lightning protection, fire prevention, drainage prevention and so on must be completed.
2) Curtain wall design should take measures to prevent rainwater leakage performance. The section form of glass curtain wall column and beam should be designed according to the isobaric principle. The leakage hole of outward flow should be set in the part of easy leakage, easy to produce condensation hole. The water part shall have condensate discharge pipes. When parts are manufactured, water holes should be drilled in strict accordance with the requirements. The sealing material of the opening part shall be neoprene or silicone rubber.
3) The contact area of different metal materials on the glass curtain wall should be equipped with insulation gaskets (general thickness lmm) or other anti-corrosion measures. The size of the insulation sheet should not be less than the contact area to ensure direct contact between the aluminum alloy column and different steel connectors. The contact pad shall be provided with a flexible washer.
2. Selection of materials.
1) Curtain wall profiles should meet the high precision requirements specified in the current national standard "Aluminum Alloy Building Profiles" GB/T5237. The anodized film thickness shall not be less than the AA15 grade specified in the General Specification for Anodized Film of Aluminum and Aluminum Alloy GB8013 as follows: The wall thickness of structural profiles shall not be less than 3mm. Minimum mean film thickness is 15д m, minimum local film thickness is 12д m. The surface color of anodized aluminum alloy profiles is basically uniform, and rust spots, welding, black spots, oxide film deposition and other defects are not allowed.
2) Safety glass shall be used in the frame glass curtain wall. The glass curtain wall shall be supported by the glass ribs for the glass curtain wall. The glass ribs shall be made of tempered glass. Safety glass should be used in public places with high density of personnel flow, teenagers or children's activities, and all places vulnerable to impact in use.
3, physical performance testing

The physical performance test of building curtain wall refers to the test of many physical properties of curtain wall, such as deformation performance of wind wall, rain leakage performance of curtain wall, permeability of curtain wall, horizontal displacement performance of curtain wall and so on. More than two layers of typical parts of unit curtain wall and multi-span continuous beam curtain wall were tested. Structural adhesives, weatherproof adhesives and other materials used in curtain walls should be tested according to regulations before use and should be carried out before installation of curtain walls. Through inspection, defects in the process of design and production and problems to be paid attention to in the process of installation can be found, so that the correctness of material selection and the function of curtain wall design are in line with the actual situation.