Exclusive for high-rise residential buildings! Liaoning R&D solution for wind pressure resistant insulation window system

In coastal cities of Liaoning, residential buildings with more than 30 floors often face the dual test of instantaneous wind force of 9 and temperature difference exceeding 50 ℃. Traditional windows either cannot withstand the strong winds of typhoon season or the extreme cold condensation of minus 30 ℃. In response to this pain point, Liaoning Academy of Building Research, in collaboration with local enterprises, has developed the "Sea Land Dual Resistance" high-rise dedicated window system over a period of 3 years. It has successfully passed the testing of China Academy of Building Research and has become a groundbreaking solution for high-rise residential buildings in northern China.

1、 The Life and Death Test of High rise Buildings in Liaoning Province

1. Coastal wind pressure limit challenge

Actual measurement data of Dalian Xinghai Bay (during Typhoon Kanu in 2023):

Instantaneous wind pressure at a height of 200 meters: ≥ 4.5kPa (the highest level in the national standard is 5.0kPa for level 9)

Deformation of ordinary broken bridge aluminum window: the middle of the window frame bends up to 8.7mm (safety threshold ≤ L/200)

2. Extreme cold temperature difference double critical strike

Shenyang Baoneng GFC Apartment Case (328 meter super high-rise):

Indoor outdoor temperature difference in winter: 56 ℃ (indoor 24 ℃ vs outdoor -32 ℃)

Poor quality window heat loss: accounting for 43% of the total building energy consumption

2、 Core technology analysis: Sea land dual resistance system 1 6063-T6 aviation aluminum skeleton

Structural innovation:

The window frame adopts a multi chamber honeycomb structure (6-chamber design)

Strengthening the embedded 1.5mm galvanized steel lining in the mullion (increasing bending stiffness by 300%)

Tested performance:

参数普通断桥铝海陆双抗系统抗风压等级6级9级型材变形量4.2mm0.8mm使用寿命20年50

2. Composite glass unit

Five layer protective structure:

Outer layer: 6mm tempered glass (resistant to wind, pressure, and splash)

First layer: 1.52mm PVB film (shock wave buffering)

Intermediate layer: 12mm argon chamber (reduces heat conduction)

Second layer: 0.3mm nano silver Low-E film (reflecting thermal energy)

Inner layer: 5mm self-cleaning glass (reduces condensation)

Extreme environment testing:

Wind resistance: Successfully withstood a wind pressure of 5.5kPa (equivalent to a level 12 typhoon)

Thermal insulation: K value as low as 0.89 W/(㎡· K) (Liaoning standard 1.3)

3. Typhoon level sealing system

Triple dynamic sealing design:

Air pressure balance chamber: automatically adjusts the internal and external pressure difference to prevent negative pressure explosion

Shark gill drainage system: one hour rainstorm leakage resistance reaches the highest standard of ASTM E331

-50 ℃ weather resistant rubber strip: EPDM+TPE composite material, maintains elasticity even at extreme low temperatures

3、 Liaoning Engineering Demonstration: From Laboratory to Super High rise Buildings

1. Application case of Dalian International Trade Center (368 meters)

Transformation effect:

The wind resistance performance has been improved from level 7 to level 9

Annual heating energy consumption reduced by 37% (saving 820000 yuan in costs)

Glass breakage rate returns to zero during typhoon season

2. Actual measurement data of Shenyang Huaqiang Jinlong City Square (58th floor)

indicator

Before renovation

after renovation

4、 Policy dividend: List of Liaoning special subsidies

1. Subsidies for ultra-low energy buildings in 2024

High rise residential projects using this system:

Subsidy of 150 yuan per square meter (up to a maximum of 5 million yuan per individual project)

30% reduction in urban infrastructure supporting fees

2. Special support from Dalian Free Trade Zone

Import equipment tariff subsidy: Purchasing core components such as German Yelu Hardware can enjoy a 13% tax refund

Quick acceptance channel: Submitting the "Application Report of the Sea Land Dual Defense System" can shorten the approval cycle by 50%

5、 Selection guide: Suitable for different regions of Liaoning

6、 Quality assurance upgrade: Liaoning's first "dual insurance" service

Performance insurance:

Pacific Insurance underwriting, direct compensation for wind pressure/insulation failure

The maximum compensation amount reaches 200% of the contract amount