Is there any environmental testing on the curtain wall? What are the curtain wall inspections?

The glass curtain wall detection has:

For the testing of a number of physical performance indicators such as curtain wall wind pressure deformation performance, curtain wall rainwater leakage performance, curtain wall air permeability performance, curtain wall level displacement performance, unit curtain wall and multi-span continuous beam curtain wall should be tested with more than 2 layers of representative parts.

Other materials such as structural adhesive and weathering adhesive used in the curtain wall shall be tested before use according to the regulations, and shall be carried out before the installation of curtain wall components. Through the inspection, the defects in the design and production and the problems that should be paid attention to in the installation process can be found, and the correctness of the design and material selection and the curtain wall design function can be confirmed whether the actual situation is conformed.

Curtain wall development trend

1. From bulky to lighter plates and structures (natural stone thickness 25mm, new materials up to 1mm).

2. Fewer varieties gradually move towards more types of plates and richer colors (at present, there are nearly 60 kinds of plates such as stone, ceramic plate, glass-ceramic, high-pressure laminate, cement fiber filament, glass, inorganic glass fiber reinforced plastic, clay board, ceramic protection board, metal plate, etc., which are applied to the exterior wall).

3. Higher safety performance.

4. More flexible, convenient and fast construction technology.

5. Higher waterproof performance prolongs the life of the curtain wall (from closed curtain wall to open curtain wall).

6. Environmental protection and energy saving (the metal decorative insulation board is more commonly used in the European and American construction markets, which is composed of aluminum-zinc alloy carved finish, polyurethane insulation layer and glass fiber cloth after color paint; Taking into account the functions of decoration and thermal insulation and energy saving, the topcoat will not fade for 10-15 years, and the overall service life can reach 45 years).

The above content refers to Encyclopedia - Glass Curtain Wall.

To put it simply, curtain wall mainly refers to a kind of external decoration that is different from the interior decoration, the curtain wall is actually divided into indoor and outdoor, at the same time, there is also a distinction between functional and decorative, and the common form of structural form (such as frame type and unit type), or the form of material distinction (glass curtain wall, metal curtain wall, stone curtain wall, ceramic curtain wall, etc.) is basically understood.

At this stage, the mainstream glass curtain wall structure.

In a word, curtain wall mostly refers to a kind of wall exterior decoration, which itself is not load-bearing, and has a certain displacement capacity because of its structural characteristics.

The curtain wall itself is generally not less than 500 yuan per square meter. Some of the main groups include private owners, business owners, property owners, investment and renovation companies, renovation companies, general contractors, developers and so on.

The main functions of the curtain wall include fire prevention, energy saving, temperature insulation, sound insulation, aesthetics, etc., and these are also the main curtain wall inspection contents, of course, the content of the inspection also includes structural safety, material standards, wind load measurement, lightning protection investigation, etc., which are for the safety of the curtain wall, practicability and so on.

Of course, to go deeper, the benefits of curtain walls are not limited to functions and the like, but also have a lot of promotion effects on enhancing the value of buildings, building corporate image, and enhancing employee enthusiasm, so they are also more and more popular.

The building curtain wall needs to be tested for the physical properties of the building (wind pressure resistance, air permeability, rainwater leakage performance, plane deformation performance test report), silicone structural adhesive, weather-resistant sealant compatibility, adhesion test report, and on-site pull force test report of the embedded parts.

1. Building curtain wall:

It refers to the non-load-bearing exterior wall enclosure of the building, which is usually composed of panels (glass, metal plates, stone slabs, ceramic plates, etc.) and the supporting knots behind the building curtain wall, which refers to the non-load-bearing exterior wall enclosure of the building, which is usually composed of panels (glass, metal plates, stone slabs, ceramic plates, etc.) and supporting structures (aluminum beams, columns, steel structures, glass ribs, etc.) behind it. structure (aluminum beams, columns, steel structures, glass ribs, etc.).

Two: Technological development:

a. From bulkiness to lighter plates and structures. (The thickness of natural stone is 25mm, and the thinnest of new materials is 1mm).

b. Fewer varieties gradually move towards more types of plates and richer colors. (At present, there are nearly 60 kinds of plates such as stone, ceramic plate, glass-ceramic, high-pressure laminate, cement fiber plate, glass, inorganic glass fiber reinforced plastic, terracotta board, metal plate and so on are applied to the exterior wall).

c. Higher safety performance.

d. More flexible, convenient and fast construction technology.

e. Higher waterproof performance prolongs the life of the curtain wall. (from closed curtain walls to open curtain walls).

f. Environmental protection and energy saving. (Before 2013, the most commonly used metal decorative insulation board in the European and American construction markets was composed of colored painted aluminum-zinc alloy carved finish, polyurethane insulation layer and glass fiber cloth; Taking into account the functions of decoration and thermal insulation and energy saving, the topcoat will not fade for 10-15 years, and the overall service life can reach 45 years). ）

Aspects that need to be tested in curtain wall engineering: wind pressure deformation, rainwater leakage, air infiltration, in-plane deformation, thermal performance (heat preservation, heat insulation), air sound insulation performance, impact resistance, optical performance, and load-bearing performance.

The building curtain wall is composed of a supporting structure system and a panel, which can have a certain displacement capacity relative to the main structure and does not share the role of the main structure.

The curtain wall is the outer wall enclosure of the building, which is not load-bearing and hangs like a curtain, so it is also called the hanging wall, which is a lightweight wall with decorative effect commonly used in modern large-scale and high-rise buildings. It is a building envelope structure composed of structural frame and inlaid panels, and does not bear the load and function of the main structure.

The verticality, horizontality and flatness of the wall should be tested.

Curtain wall works require re-inspection of materials.

First of all, the keel material: channel steel, angle steel, some supervisors also require the steel plate to be retested; secondly, the chemical anchor should be pulled out on site, as if three groups were done; Then there's the glass aluminium profile.

Main profiles (including aluminum profiles and steel profiles), screws and bolts, pull-out test, four-sex test, hardware accessories, etc.

Concealed engineering, inspection batch, raw material review, commencement report, sub-project, sub-project, test report for review are mainly concealed acceptance before hanging plate, including steel frame keel, anti-corrosion operations, material inspection and other processes.