In typhoon-prone areas, coastal industrial zones and ultra-high-rise buildings, wind-resistant Steel Structures have become the preferred solution to withstand extreme wind loads due to their excellent mechanical properties and innovative design. This paper will comprehensively analyze the technical core and market value of wind-resistant steel structure from the dimensions of wind-resistant design principle, material technology, engineering application and technical innovation.

I. Wind-resistant design principle and core technology

Wind-resistant steel structure takes hydrodynamic optimization and dynamic response control as the core, and ensures the stability of the building in strong wind environment through multi-level technical means:

Wind load calculation system

Based on CFD (Computational Fluid Dynamics) simulation, the wind pressure distribution on the surface of the building is accurately calculated, and the design wind load can be up to 3.0kN/m2 (corresponding to a level 12 typhoon).

Adopting gust effect factor method to dynamically check the resonance risk of the structure under the action of pulsating wind.

Structural shape optimization

Reduce 30%-50% of vortex vibration by aerodynamic shape design (e.g., tapered closure, open hole ventilation).

Tuned Mass Dampers (TMD) at key nodes to reduce wind acceleration to less than 0.15m/s².

Material Reinforcement Process

The main material is Q355GJ high-strength weathering steel, with yield strength ≥355MPa and low-temperature toughness (-40℃ impact work) ≥34J.

The surface is treated with hot-dip aluminum-zinc alloy (AZ150), with a salt spray corrosion-resistant life of over 50 years.

Typical Product System and Application Scenario

Ultra-high-rise Building Skeleton System

Truss tube structure: It is composed of giant steel tube columns (diameter Φ800mm-1500mm) and X-type diagonal braces, and the lateral stiffness is increased by 2-3 times.

Case: A 380-meter coastal landmark building successfully withstood a 17-grade typhoon with a maximum inter-story displacement angle of only 1/450.

Large-span space structure

Tensioned beam-cable network composite system: span up to 120 meters, wind vibration coefficient below 1.2, suitable for stadiums and terminal buildings.

Modular wind tower

Tapered segmented tower (plate thickness 20-40mm), flange connection accuracy ±0.2mm, meeting 140m height wind resistance requirements

Coastal industrial facilities

Class 4 wind resistance (EN 1991-1-4 standard), used in petrochemical pipeline corridors, harbor crane bases and other key facilities.

Technical Advantages and Economic Benefits

Safe and redundant design

The structural importance factor is 1.1, and the key components are equipped with double wind-resistant lines of defense to ensure that local damage does not affect the overall stability.

Light weight and cost optimization

Adoption of high-strength steel reduces weight by 25%, foundation cost is reduced by 18%, and comprehensive cost is saved by 30% compared with concrete structure.

Rapid construction technology

Bolted nodes account for more than 85% of the total number of nodes, reducing the amount of on-site welding by 70% and shortening the construction period by 40%.

Full Life Cycle Management

Implanted fiber optic sensors monitor stress and deformation data in real time, with an early warning accuracy of 95%.

Quality control and certification system

Material traceability management

Steel raw materials have passed CE and ASTM A588 dual certification, and MTC (Material Traceability Certificate) is provided for each batch.

Manufacturing precision guarantee

CNC cutting precision ±0.5mm, bevel angle error ≤1°, ultrasonic flaw detection (UT) testing of weld seams up to standard rate of 100%

Wind tunnel experiment verification

In cooperation with Tongji University Wind Engineering Laboratory, 1:200 scale-down model test has been completed, and the correction coefficient of aerodynamic parameters is as accurate as 0.95.

Project Acceptance Standard

Implementation of “Code for Acceptance of Construction Quality of Steel Structure Project” (GB 50205), wind vibration frequency deviation ≤3%.

V. Industry solution customization capability

Provide differentiated wind-resistant design for different wind environment characteristics:

Coastal typhoon area: Strengthen anti-corrosion treatment and add wind guide plate system.

Mountain canyon wind area: adopting asymmetric structure, optimizing airflow guidance

Urban canyon effect area: implant active wind control dampers to inhibit vortex shedding

Contact

Mobile number: 13848510731

Landline number: 0471-6490861

Address: Inside the courtyard of the Outer Transport Company, diagonally opposite the government of Haoqinying Town, Xincheng District, Hohhot City, Inner Mongolia (National Highway 110)