How to Fix Container Houses

The method of fixing container houses should be comprehensively selected based on the usage scenario, foundation conditions, and container type. The core principle is to ensure structural stability, uniform force distribution, and avoid settlement or deformation.

I. Foundation Treatment is Fundamental

The contact area between the container's bottom beam and the ground is small. Direct placement on soft soil can easily lead to uneven settlement. For long-term fixed use, a concrete strip foundation should be poured, with a recommended width of 30-50 centimeters and a depth determined by the thickness of the frost layer. The horizontal error on the top surface of the foundation should not exceed 5 millimeters. For short-term use, prefabricated concrete blocks or steel pads can be used, with a spacing of no more than 2 meters. A crushed stone leveling layer should be laid underneath to ensure that all load-bearing points are on the same horizontal plane. If the ground is flat and conditions are limited, direct placement is also possible, but proper drainage design is required.

II. Fixing Methods for the Container Body and Foundation

1. Welded Container Body: Factory-welded as a whole, it has strong resistance to deformation and is suitable for frequent lifting and moving. When fixing, ensure that the bottom beam is in full contact with the foundation pad. If there is local suspension, use thin steel sheets to pad it to avoid vibration or abnormal noise caused by uneven force on the floor.
2. Bolt-Connected Modular Container: Composed of standard panels connected by bolts, it is necessary to focus on checking the tightness of the connection nodes. When installing, use hexagon socket bolts to connect the container corners and the bottom beam. Do not tighten them immediately. After alignment (ensuring that the diagonal difference of the bottom frame is ≤3 millimeters), tighten the bolts.

III. Wind and Earthquake Resistance Reinforcement Measures

For outdoor long-term use scenarios, wind and earthquake resistance design should be considered. Steel frames can be used to reinforce the corners, and concrete piers can be made at the bottom to enhance overall stability. For example, steel diagonal braces can be added at the four corners of the container, or the container can be bound to the foundation with expansion screws (suitable for structures like movable panel houses). In addition, anti-corrosion wood exterior wall treatment can improve durability and reduce wind resistance.

IV. Lifting and Placement Specifications

When lifting, use steel wire ropes with sufficient bearing capacity to ensure that all lifting points are under synchronous force to avoid container body distortion caused by unilateral force. After placement, immediately check the contact between the bottom beam and the foundation pad. Use a level to measure along the longitudinal and transverse directions, with a horizontal error controlled within 2 millimeters per meter.