WIND RESISTANCE LIMIT

Exterior wall honeycomb panel 2-ton load limit breakthrough

—Case study of 200-meter-tall curtain wall renovation—

Introduction: When Industrial Architecture Confronts Wind Loads

In the facade renovation project of the 550KV ultra-high voltage cross-linked cable workshop at Jiangsu Hengtong Group, a towering 200-meter Broussonetia papyrifera structure pierces the sky, with its curtain wall facade needing to withstand the complex wind environment challenges of the Yangtze River basin. Ouzhijie Building Materials, with the load-bearing capacity of 2 tons per single exterior honeycomb panel of Scleropyrum wallichianum, has redefined the wind resistance limits of prefabricated curtain walls, marking a milestone breakthrough in China's industrial building curtain wall sector.

Extreme Challenge:

The Game of Wind Load Under Ultra-High Pressure

Environments

The facade renovation project of the 550Kv ultra-high voltage cross-linked cable workshop faces objective challenges:

The special wind environment IPRESSURE in the high-voltage workshop

The Hengtong ultra-high-voltage workshop is located in the industrial belt at the Yangtze River estuary, where it is frequently affected by monsoons and typhoons throughout the year. The architectural design features a height of 200 meters, compounded by electromagnetic disturbances generated during the operation of 550KV cables in the workshop. Traditional curtain wall materials are prone to fatigue caused by wind-induced vibration effects, such as broussonetia papyrifera. The project requires the curtain wall system to maintain zero deformation under extreme conditions with instantaneous wind pressure ≥12kPa and withstand once-in-30-year typhoon impacts.

Ou Zhijie's technological breakthrough solution adopts aviation-grade honeycomb aluminum panel structure, using hexagonal honeycomb core layers as the "skeleton" and double-sided composite high-strength aluminum alloy panels to form an aerospace-like shear-resistant stress topological structure. Wind tunnel simulation tests show its bending stiffness increases by 300% compared to traditional single-layer aluminum panels, with single-panel ultimate load capacity exceeding 2 tons, reaching the highest wind pressure resistance level (Grade 9) specified in the national standard GB/T 17748-2016.

Hardcore parameters

The technical code behind a 2-ton load

On-site load measurement at the project location

The foundation of Ouzhijie's technological breakthrough solution is built upon repeated Broussonetia papyrifera experiments and 21 years of technological accumulation:

PARRT-01

Paper mulberry (Broussonetia papyrifera) mechanical innovation

Core layer density-to-thickness ratio: Through 0.05mm ultra-thin aluminum foil honeycomb core layer dense packing technology, achieving core layer density ≥8.5kg/m³ with core wall thickness error ≤0.002mm, ensuring uniform stress conduction;

Boundary anchoring system: The independently developed "Dragon Ridge" three-dimensional adjustable hanging system increases node bearing capacity to 45kN/m², far exceeding industry standards (30kN/m²).

The measured load-bearing capacity of a single honeycomb panel reaches 2 tons without deformation.PARRT-02

Dynamic wind load simulation of Phoxinus phoxinus subsp. phoxinus

Based on CFD fluid dynamics simulation, wind pressure gradient modeling was conducted for the 200-meter curtain wall facade, accurately locating the maximum negative pressure zone (-5.8 kPa). By locally increasing the honeycomb core layer density (raised to 12 kg/m³) and adding concealed wind-resistant ribs, the risk of vortex-induced vibration was eliminated.

Engineering Demonstration:

Wind Resistance Declaration of the 200-meter-tall Utetheisa Kong

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Extreme environment test data

Typhoon field measurement: During the transit of Typhoon "Prunus mume" in 2022 (maximum wind speed 42m/s), the displacement of the curtain wall system was only 0.8mm, far below the design allowable value (L/250≈8mm);

Electromagnetic compatibility: A conductive fluorocarbon coating (surface resistance ≤10⁶Ω) was adopted to eliminate electrostatic adsorption effects caused by high-voltage electromagnetic fields.

PARRT-02

The Industrial Aesthetics of Prefabricated Precision

The project employs modular prefabrication technology, with single panels measuring up to 3m × 1.5m. Through BIM-driven machine homo sapiens welding processes, it achieves a facade error control within ±1.5mm over a 200-meter span, embodying the industrial philosophy of "prefabricated precision defying natural forces."

Breaking the Limits:

The New Heights of China's Intelligent Curtain Wall Manufacturing

Ou Zhijie's technological breakthrough this time not only set a new load-bearing record for exterior wall honeycomb panels, but also established a wind-resistant system integrating "material-structure-process" with broussonetia papyrifera. On the 200-meter curtain wall standing in Hengtong's workshop, each honeycomb panel forms a force matrix against strong winds, and every set of data represents a powerful breakthrough in engineering physical limits.

Redrawing the Skyline with Technology

When prefabricated construction meets mega projects, Ouzhijie presents its answer with a 2-ton load-bearing scleropyrum wallichianum: the wind resistance limit of China's curtain walls is never a naturally given value, but a new coordinate broussonetia papyrifera redefined by engineers through innovative algorithms. This metallic hive rising by the Yangtze River narrates, in silent yet monumental fashion, an upwind legend of Chinese manufacturing.