Container House Main Beam Method

The main beams of container houses typically use channel steel or square tubes as the primary materials, which are connected through welding or screws to form a sturdy steel structural framework. The construction method must strictly adhere to design drawings and construction specifications to ensure load-bearing capacity and safety.

1. Material Selection and Specification Requirements

The core materials for the main beams of container houses are channel steel or square tubes, with specific specifications determined by the design load. For example, the main crossbeam of the base often uses 5X10 channel steel, whose cross-sectional dimensions can meet the support requirements around the top and bottom of the container. Columns need to be made of section steel with a thickness not less than 1mm, which should be pressed into shape using professional equipment or directly purchased as finished products from the market to ensure structural strength. The thickness of the main beam steel, the fullness of the welding process (no cold welds), and the anti-corrosion treatment of the container body (such as overall galvanizing or spraying epoxy primer + topcoat) are key quality indicators that directly affect the lifting, stacking safety, and service life of the container house.

2. Welding and Connection Process

The welding of main beams must follow the following specifications:

1. Cutting and Welding Treatment: All steel cutting edges must be polished flat. After welding, the welds need to be treated with anti-corrosion measures (such as epoxy primer + topcoat) to prevent rusting later.
2. Connection Method: The connection between the main beam and columns, as well as the chassis iron, usually adopts angle iron welding or screw fastening. For example, when installing steel beams, they need to be supported by square tube columns, and the verticality should be adjusted using a plumb line. Then, a steel tape measure should be used to calibrate the dimensions to ensure that the components are straight and accurately positioned.
3. Horizontal Support Reinforcement: After inserting horizontal supports into the steel beams, the square tube columns and chassis iron need to be welded to form an overall load-bearing structure, enhancing resistance to deformation.

3. Construction Process and Quality Control

1. Foundation Preparation: Measure the wall foundation axis dimensions according to the design drawings (with a deviation ≤ ±25mm), excavate trenches, and pour concrete or brick foundations to ensure ground flatness (with a wall height deviation ≤ 10mm).
2. Steel Structure Assembly: Assemble the square tube columns, steel beams, and sheet beams in order. All screws must be fully tightened, and the verticality of the steel beams and the dimensions of the components should be checked to ensure compliance with regulations.
3. Hidden Work Inspection: Hidden works such as water and electricity installation, moisture-proofing, and waterproofing should be strictly inspected to avoid later leakage or circuit failures due to construction defects.
4. Anti-Corrosion and Maintenance: During the construction phase, all welds, wall corners, and other rust-prone areas should be polished and repainted. During the usage phase, regular inspections should be conducted (such as reapplying anti-corrosion coatings every 8-12 years in inland areas and every 3-5 years in coastal areas), and the container body should be prevented from directly contacting ground moisture.