Container Combined Housing Design
The design of container combined housing requires comprehensive consideration of structural types, material selection, thermal performance, connection nodes, spatial layout, and environmental characteristics. The specific design points are as follows:
Structural Type Selection: Common structural types of container combined housing include welded integral boxes and bolt-connected assembled boxes. Welded boxes are formed by integral welding in the factory, with a direct load path and strong resistance to deformation, suitable for scenarios requiring frequent lifting and movement. Bolt-connected assembled boxes use standard plates connected by bolts, with multiple connection nodes in the load path, requiring the tightness of each node to be ensured, suitable for scenarios with high requirements for installation flexibility.
Material Selection and Optimization: The main frame should preferably use high-strength weathering steel, such as Q355B grade, which has a yield strength approximately 30% higher than that of ordinary carbon steel, reducing the need for additional reinforcement members and lowering material consumption. The enclosure structure can adopt a three-layer composite construction of "rock wool-air layer-aluminum-zinc coated steel plate", controlling the thickness of the rock wool layer between 75 mm and 100 mm, with a 5 mm air layer in the middle, effectively inhibiting convective heat transfer, reducing condensation risk, and extending the service life of the steel structure.
Thermal Performance Compensation: To address the high thermal conductivity of metal boxes, a thermal break lining structure can be used, filling hard polyurethane foam between the steel frame and interior wall panels, and adding rubber thermal insulation pads at the connections of the studs to reduce the heat exchange efficiency between the interior and exterior of the box. For camp dormitory projects, an elevated layer can also be added at the bottom of the box to block ground cold bridge conduction and improve indoor temperature stability.
Connection Node Design: In areas with high seismic design intensity, a dual fixation mode of "wedge lock + high-strength bolt" should be introduced at the box connections. The wedge lock is made by heat treatment, with a reasonably designed slope angle that can produce a self-locking effect under horizontal shear forces, improving the seismic performance of the nodes. Meanwhile, the detachable connection method facilitates repeated assembly during secondary relocation, reducing construction waste generation.
Spatial Layout and Functional Zoning: According to usage requirements, reasonably plan the internal spatial layout, setting up independent workstations, conference tables, and storage spaces to improve area utilization. For long-term on-site office scenarios, an expandable design can be adopted, adding side or end expansion modules to the container to increase usable area and improve spatial comfort.
Environmental Protection and Sustainability: Prioritize the use of recyclable materials to reduce the consumption of traditional building materials. During construction, noise and waste generation should be controlled, in line with the trend of green building development. Meanwhile, consider the full life cycle recycling of materials to reduce carbon emissions and improve environmental benefits.
