Technical Specifications for Container Houses

The technical specifications for container houses cover various requirements including dimensions, materials, structures, technical indicators, and construction. Details are as follows:

I. Dimensions and Weight
Standard containers primarily come in 20-foot sizes, with external dimensions of 6055mm (length) × 2435mm (width), packaging heights of 648/864mm, and assembled heights of 2591/2790mm. Internal dimensions are 5860mm (length) × 2240mm (width) × 2500mm (height), with weights starting from 1850kg. Non-standard containers include 10-foot, 16-foot, 24-foot, and 30-foot sizes, with significant dimensional variations. For example, a 10-foot non-standard container has external dimensions of 2989mm (length) × 2435mm (width), and internal dimensions of 2795mm (length) × 2240mm (width) × 2500mm (height), with weights starting from 1200kg.

II. Materials and Structures

1. Floor: The steel structure frame uses 4mm thick cold-rolled welded steel profiles, with a 100mm thick rock wool board for insulation. The base is a 0.5mm thick galvanized steel plate, and the floor consists of 18mm plywood and 1.8mm PVC flooring, achieving a flammability rating of B1, a smoke concentration rating of Q1, and a wear coefficient of T.
2. Roof: The steel structure frame is 3mm thick, with a 0.5mm thick galvanized color steel plate for the roof cover. The roof panels are connected using 360° interlocking seams; the insulation layer is also a 100mm rock wool board, and the ceiling is a 10mm particleboard (V20) with white panels on both sides, meeting emission standard E1.
3. Main Structure: The primary load-bearing components use Q235 or higher-grade steel, with a thickness of not less than 1.5mm. Corner fittings, as key connecting components, have a yield strength of not less than 230N/mm² and a tensile strength range of 430-600N/mm².

III. Structural Types and Scope of Application
Structural types are divided into stacked container structures (suitable for vertical multi-story combinations, requiring sufficient load-bearing capacity at the bottom level) and container-frame structures (suitable for planar expansion, requiring strengthened connection parts). The scope of application covers the design, production, installation, and acceptance of integrated packing container houses for industrial and civil use up to three stories, as well as low-rise and multi-story modular combined houses (with a maximum of 6 stories, a height of ≤24m, and an earthquake resistance of ≤8 degrees).

IV. Technical Indicators and Requirements

1. Earthquake Resistance and Fire Protection: The earthquake resistance requirement is 7 or 8 degrees, and the fire protection rating is divided into B1 or A.
2. Service Life: Some standards specify a service life of 15 years, while others specify 25 years.
3. Perforated Containers: When the perforated area on a single side of the container wall exceeds 30%, it should be symmetrically arranged and retain at least 20% of the container wall without perforations. The deflection limit for the bottom beam below the opening is L/200 (L being the span), and the safety factor for the vertical load-bearing capacity of the bottom level in multi-story structures should be ≥2.5.

V. Waterproof Sealing and Installation Construction

1. Waterproof Sealing: Double-sealing is used at the seams, with butyl waterproof tape on the inside and silicone sealant applied on the outside. The roof drainage slope should be ≥3%, the fixed spacing of drainage troughs should be ≤25cm, and the connections between roof tiles should be securely fastened.
2. Installation Construction: The process should follow steps such as foundation leveling, bottom frame installation, and column verticality inspection. Corner fitting bolts should use 8.8-grade high-strength bolts, with the initial tightening torque being 50% of the final tightening torque, and the final tightening torque ranging from 100-300N·m.