Thickened Container House

A thickened container house generally refers to a container house that enhances its load-bearing capacity and durability by increasing the thickness of steel, optimizing the structure, or adopting special processes. It is commonly used in scenarios with high requirements for strength, thermal insulation, or climate adaptability.

I. Core Objectives of Thickened Design

1. Enhancing Structural Strength
   Traditional container houses typically have steel thicknesses ranging from 1.2 to 1.8 millimeters, while thickened versions may use galvanized steel structural frames with thicknesses exceeding 2.0 millimeters. For example, the steel structure of container houses from Suzhou Zhongnan has a thickness of ≥2.0mm, achieving a wind resistance rating of 10 and seismic performance that meets national standards. In simulated earthquake conditions of magnitude 8, the frame shows no significant deformation. In contrast, ordinary off-brand non-standard products with steel thicknesses ≤1.2mm exhibit frame shaking during wind tests of magnitude 6, posing safety risks.

2. Improving Thermal Insulation and Climate Adaptability
   In cold regions (such as Jining, Inner Mongolia), thickened designs are often combined with optimized thermal insulation layers. For instance, using 0.8-millimeter-thick corrugated steel plates paired with 100-millimeter rock wool sandwich panels can meet thermal insulation requirements in environments as cold as -30℃. By adjusting the coating formula of the panels (e.g., using high weather-resistant polyester resin on the outer layer and moisture-proof aluminum foil on the inner layer), the probability of condensation can be reduced when the diurnal temperature variation exceeds 20℃, preventing internal moisture buildup.

3. Supporting Modular Combination and Stacking
   When container houses need to be combined into multi-story buildings, thickened columns and reinforced node designs are crucial. For example, ordinary suppliers use 4-millimeter-thick square steel for the columns of their container bodies, which may deform at the bottom when stacked two stories high. In contrast, transformed suppliers use 6-millimeter-thick square steel columns and add reinforcing ribs at the connection nodes, increasing the overall compressive strength by approximately 50%.

II. Implementation Methods of Thickened Design

1. Upgrading Steel Thickness
   The thickness of steel in key parts (such as columns and bottom beams) is increased from 1.5-3 millimeters to 4-6 millimeters, and may be even thicker in some extreme scenarios. For example, the bottom beams and side wall columns of welded integral containers are thickened to evenly distribute roof loads to the ground, making them suitable for frequent lifting and movement.

2. Process Optimization

   • Coating Treatment: Hot-dip galvanizing offers a longer corrosion-resistant lifespan than cold-dip galvanizing, especially in regions with large diurnal temperature variations and significant humidity changes.
   • Cutting and Bending Precision: Using CNC bending machines to control the bending angle of door frames within ±0.5 degrees, combined with ethylene propylene diene monomer rubber seals, can improve airtightness and reduce dust infiltration during sandstorms.
   • Pipeline Integration: Integrating pre-buried pipelines into the chassis of the container body and adopting quick-connect designs reduce on-site construction errors.

III. Typical Application Scenarios

1. Extreme Climate Regions: Such as Jining, Inner Mongolia, where low-temperature thermal insulation and anti-condensation requirements must be met.
2. Multi-Story Buildings: Such as construction site dormitories and wilderness camps that need to be combined into two- or three-story office areas.
3. High-Intensity Usage Scenarios: Such as welded integral containers that are frequently lifted and moved, or assembled containers that require long-term fixation.