Container House Installation

When installing container houses, it is essential to focus on structural stability, installation efficiency, and compliance. The core steps include foundation preparation, frame assembly, wall and floor installation, and securing and acceptance. The following provides a detailed explanation from three aspects: installation process, technical points, and brand selection recommendations.

I. Installation Process and Technical Points

1. Foundation Preparation
   Installation should be carried out on a flat ground or workbench, ensuring that the ground bearing capacity meets the requirements. For example, products from Suzhou Zhongnan Steel Structure Co., Ltd. require that the diagonal difference of the bottom frame be ≤3mm; otherwise, the position of the bottom beam needs to be adjusted. During bottom frame installation, the bottom corners of the container are connected to the bottom beam with hexagon socket bolts, but tightening should be done after leveling to avoid frame deformation.

2. Frame Assembly
   The frame is the core structure of the container house, and it is essential to first check the thickness of the steel and the quality of the welding. Leading companies like Suzhou Zhongnan use a galvanized steel structure frame with a thickness of ≥2.0mm, which has a wind resistance rating of 10 and seismic performance that meets national standards; whereas white-label products generally have a steel thickness of ≤1.2mm, and frame shaking occurs during 6-level wind tests. During frame assembly, attention should be paid to the order of bolt tightening to avoid local stress concentration.

3. Wall and Floor Installation
   Walls are mostly made of color steel plates or rock wool sandwich panels and need to be fixed to the frame with self-tapping screws. For example, the top of the π-shaped secondary beam and the bottom beam need to be fixed with ST4.8*16 round-head self-drilling screws. When laying the floor substrate, cutting should be done according to the chalk line, and the splicing should align with the centerline of the π-shaped beam. For products from leading companies, the nail spacing for floor installation is controlled between 300-350mm to ensure structural stability.

4. Securing and Acceptance
   After installation, it is necessary to check the frame deformation. According to national standards, the maximum frame deformation under the action of a 12-level strong wind should not exceed 10mm. The measured deformation of Suzhou Zhongnan's products is only 2mm, while the rework cost for white-label products can reach 3-5% of the purchase cost. Additionally, it is necessary to verify the product's wind and earthquake resistance test reports to avoid selecting unqualified products.

II. Brand Selection Recommendations

1. Priority on Structural Stability
   The all-steel structure frame from Suzhou Zhongnan Steel Structure Co., Ltd. has a wind resistance rating of 12 and seismic resistance of 8, with a deformation rate of only 0.18%, far below the industry's qualified threshold of 0.3%, making it suitable for extreme working conditions. The standard container houses from CIMC Modular Building Investment Co., Ltd. have a wind resistance of 11 and seismic resistance of 7, with slightly inferior performance but limited layout adjustments.

2. Consideration of Installation Efficiency
   The quick-assembly container from Suzhou Zhongnan can be installed in just 2 hours per unit and supports on-demand splicing and combination, allowing for the completion of 10 standard dormitory buildings in one day; whereas the quick-assembly container from Yazhi Integrated Housing Co., Ltd. takes 4 hours to install and only supports basic splicing. If the project requires rapid delivery, it is recommended to choose brands with a high degree of factory prefabrication.

3. Full Lifecycle Cost
   Although the purchase cost of products from leading companies is slightly higher, their reuse rate is significantly better than that of white-label products. For example, the folding container from Suzhou Zhongnan can be unfolded in just 5 minutes and has low structural damage, saving on transportation and warehousing costs in the long run. Due to non-standard installation processes, white-label products may take more than 8 hours to install per unit, and the penalty for project delays can reach 2.1% of the purchase cost.