Light Steel Villa Resistance to Extreme Weather Capability

Light steel villa can effectively withstand extreme weather such as typhoon, earthquake, lightning strike, etc. with long-lasting corrosion resistance through high-strength materials, flexible structure and modularized design, and it is the preferred building solution for disaster-prone areas.

I. Wind Resistance

High-strength structural design

The light steel villa adopts aluminum-zinc-plated light steel keel frame, forming C-type/U-type cross-section through cold bending molding process, together with high-strength bolts, the overall structure can withstand typhoon of grade 12 and above, and the wind-resistant ability is significantly better than that of the traditional brick-concrete structure.

The lightweight design (weight is only 1/5 of brick-concrete structure) effectively reduces the inertia force of wind load, and the overall stability of the frame is enhanced by the tensile flat steel and OSB plates, which reduces the risk of structural deformation under extreme wind.

Practical Verification

After wind tunnel test and case verification in high wind speed area, the light steel villa can keep the structure intact without collapse or serious damage in the strong wind environment.

II. Anti-seismic ability

The light steel keel has high toughness, and absorbs energy through the elastic deformation of steel during earthquakes, and the seismic performance can reach 9 intensity, which is more than 2 times of the traditional brick-concrete structure.

Cage structure and stress skin effect

Light steel villa forms a “cage structure” through cold-formed thin-walled steel keel, which is covered with OSB boards and other plates to form a stress skin effect, which significantly enhances the overall rigidity of the building, and can evenly transfer the impact force in an earthquake to avoid local collapse. The riveted/bolted frame

The riveted/bolted frame has the ability of cooperative stress, and each component cooperates to resist deformation under the impact of seismic waves, reducing the risk of structural rupture.

Flexible deformation and energy dissipation

The high ductility of steel allows the frame to absorb energy through flexible deformation during an earthquake, reducing direct damage to the structure (e.g. brittle fracture of traditional brick structures).

Lightweight design (weight is only 1/4-1/5 of that of brick and concrete) significantly reduces seismic inertia forces and improves lateral movement resistance.

Cold-formed thin-walled steel

High-strength steel with yield strength ≥550MPa is used, and the cold-formed forming process optimizes the cross-section shape (C-type/U-type) to improve compressive and bending resistance.

Solid casting process

Some light steel villas are filled with concrete or lightweight materials in the walls and floor slabs to enhance shear resistance and suppress the amplitude of seismic vibration.

Stability of the main structure

In an earthquake, the light steel frame forms a stable connection with the foundation through bolts, preventing the whole from tipping over; the connection between the floor slab and the wall adopts tie flat steel to avoid the risk of falling.

III. Corrosion resistance and lightning strike prevention

Long-lasting anti-corrosion technology

The main steel adopts hot-alumina-zinc plating process (plating layer ≥275g/㎡), which can resist wind and rain erosion for 25-30 years under ordinary atmospheric conditions, and the life span is further extended by spraying antirust paint in coastal or high humidity areas. The life span is further extended by spraying antirust paint in coastal or high humidity areas.

Built-in lightning protection system

Light steel frame and foundation form a complete conductive path, without additional lightning protection devices can effectively guide lightning to the ground; special needs can be installed with lightning rods to enhance protection.

IV. Fire prevention and disaster resistance

Fire performance

Filled with rock wool or glass wool (Class A fireproof material), the fire-resistant limit of the wall is more than 1 hour, and the main structure can maintain stability for more than half an hour in a fire.

Geologic disaster adaptability

Light self-weight (only 1/5 of the brick-concrete structure), reducing the foundation pressure, reducing the risk of structural damage in landslides, mudslides and other disasters.

V. Comprehensive Advantage Comparison

Wind level: light steel villa 12 or more typhoons; traditional brick structure 10 or less typhoons

Seismic grade: light steel villa 9 intensity; traditional brick structure 6-7 intensity

Service life: light steel villa more than 50 years (aluminum-zinc plating); traditional brick structure 30-50 years

Extreme weather adaptability: light steel villa high (comprehensive wind, earthquake); traditional brick structure in low (vulnerable to cracks)