How to determine the impact resistance of the curtain wall, and whether the glass curtain wall will

Methods for determining the performance of curtain walls:

1. Wind pressure deformation.

2. Rainwater leakage.

3. Air infiltration.

4. In-plane deformation.

5. Heat preservation 6. Heat insulation.

7. Impact resistance.

This depends on what materials you use for decoration.

The deformation performance of the curtain wall plane is level 5, and the general frame structure is general.

The curtain wall of the main body is grade 3, and grade 5 is the highest (good). The impact resistance is divided into 4 grades, generally not lower than 2 grades, and 4 is the highest (good). Bu Chun demolition.

The deformation and impulsion performance of the curtain wall is only available in performance grades from I, II, I, II, to IV, and V.

The impact resistance of the curtain wall is graded from Class I, Class II, Class III to Class IV Loose Training.

Look at the requirements of the contract, the contract must do this test, if it is not written, will ask the architect or engineer if it needs to be done, if so, there is a variation, the contractor should have money.

Technical Regulations for the Application of Architectural Glass (JGJ113-2009) Glass for indoor steeplechase shall comply with the following provisions: ......When the lowest point of the steeplechase glass is more than 5m from the ground height of one side of the floor, the steeplechase glass that bears the horizontal load shall not be used. (That is to say, in this case, the anti-collision railing should be made for the banquet) "National Civil Construction Engineering Technical Measures - Construction" curtain wall design requirements 4 When the building faces the outer edge of the wall without a solid window, the anti-collision railing should be set; "General Principles of Civil Building Design" GB50352 Protective railings should be set up in the vacant places such as balconies, verandahs, indoor cloisters, inner patios, roofs and outdoor stairs, and should comply with the following provisions:

1. The railing should be made of strong and durable materials and can withstand the horizontal load specified in the load code; 2. When the height of the airfront is less than 24m, the height of the railing should not be lower, and when the height of the airspace is 24m and more than 24m (including medium and high-rise residences), the height of the railing should not be lower; Note: The height of the railing should be calculated from the vertical height of the floor or roof to the top surface of the railing, if there is a width greater than or equal to the bottom of the treadable part, and the height is lower than or equal to the treadable part, it should be calculated from the top surface of the treadable part.

1. Wind pressure resistance.

2. Airtightness.

3. Watertightness.

4. Air sound insulation performance.

6. Impact resistance.

5. In-plane deformation performance and seismic requirements of curtain wall.

7. Thermal insulation performance.

Curtain wall four-sex testing standards:

1) GB T15227-2007 "Testing Method for Airtight, Watertight and Wind Pressure Resistance of Building Curtain Wall";

2) GB T18250-2000 "Detection Method for In-plane Deformation Performance of Building Curtain Wall".

The curtain wall is mainly composed of structural frame and inlaid panels, which does not bear the load and function of the main structure, and is hung like a curtain. As an exterior wall enclosure of a building, it can play a good decorative effect, and is often used in large and high-rise buildings.

The performance of curtain wall includes: wind pressure deformation, rainwater leakage (water tightness), air infiltration (air tightness), in-plane deformation, thermal performance (thermal insulation, heat insulation), air sound insulation performance, impact resistance, optical performance, load-bearing performance, etc.

The four sex detection indicators can be found in "Building Curtain Wall" GB T21086-2007.

Regularly inspect the curtain wall drainage system, when it is found that it is blocked, when the hardware is falling off, damaged or dysfunctional, when encountering natural disasters such as typhoons, fires, etc., the glass curtain wall should be comprehensively tested after the disaster, and repaired and reinforced according to the degree of damage.

In the perception of quality acceptance, the actual is not only the appearance of the quality, but also can start or run to start or test run, can open to see, representative rooms, parts should be walked, and by the implementation of the unit project manager organization on-site testing, after the test qualified, the implementation unit to fill in the content filled in, signed by the project manager to the supervision unit or construction unit acceptance.

Detection methods: 1) Observe and inspect the fullness, compactness and surface quality of the seam glue of the board.

2) Cutting inspection, check the width and thickness of the glue seam with a vernier caliper with a resolution or a ruler with a score rate of 1mm. 11. The metal curtain wall should be free of leakage.

Detection method: Rainwater leakage detection is carried out in the corner structure deformation joints of the curtain wall and other parts that are easy to leak, indoor observation and inspection of leakage, and before testing, the glue injection quality of the wrench and the closure of doors and windows should be checked. On-site rainwater leakage performance detection method:

At the height of the two floors of the curtain wall, the 20m length is used as an experimental section, and the nozzle is installed with a 20mm diameter ordinary hose, and the water head is perpendicular to the wall.

Sample specification requirements: GB T 15227-2007 Airtight, watertight, wind pressure resistance detection method.

GB T 18250-2000 In-plane deformation detection method.

Detection quantity requirements: GB 50411-2007 curtain wall engineering.

Acceptance data requirements: GB 50210-2001 curtain wall engineering or according to the acceptance requirements of the local quality supervision station.

Advantages of curtain wall: 1. Light weight.

In comparison with the same area, the mass of the glass curtain wall is about 1 10 1 12 of the stucco brick wall, 1 15 of the marble and granite facing wet wall, and 1 5 1 7 of the concrete cladding. In general buildings, the mass of interior and exterior walls is about 1 4 1 5 of the total weight of the building. The use of curtain walls can greatly reduce the weight of the building, thereby reducing the cost of foundation works.

2. Flexible design.

The artistic effect is good, and the architect can design various shapes according to his own needs, which can present different colors, coordinate with the surrounding environment, and cooperate with lighting to integrate the building with nature, so that the high-rise building can reduce the sense of oppression.

3. Strong seismic resistance.

With flexible design and strong wind and earthquake resistance, it is the best choice for tall buildings.

4. Systematic construction.

Systematic construction is easier to control the construction period and takes less time.

5. Modernization.

It can improve the novelty and technology of the building, such as photovoltaic energy-saving curtain wall, double-layer ventilation channel breathing curtain wall and other intelligent technology supporting design.

6. Easy to update and maintain.

Since it is built on the outer structure of the building, it is convenient to repair or update it.

The four sex detection indicators can be found in "Building Curtain Wall" GB T21086-2007.