Reinforcement of Beamless Prefabricated Slab Houses

The reinforcement of beamless prefabricated slab houses can be achieved through comprehensive treatment of various aspects such as floor slabs, walls, foundations, connection points, floor and roof covers, and roofs. The specific methods are as follows:

Floor slab reinforcement is a core aspect. Steel beams can be added for support, installed beneath the floor slab to share the load and reduce pressure on the slab. Steel plates can be affixed to the bottom of the floor slab to enhance its bending resistance. A concrete reinforcement layer can be poured to increase the thickness and load-bearing capacity of the floor slab. Profile steel can be installed along the corners, changing the four-sided support to eight-sided support, or profile steel can be placed along the longest side to improve load-bearing capacity. A clamping plate reinforcement method, attacking from both above and below, can be employed to enhance the overall integrity of the floor slab.

Wall reinforcement requires special attention. Reinforced concrete structural columns can be added at wall corners or key positions to enhance lateral resistance. Steel mesh can be laid on the wall surface and coated with cement mortar to improve overall integrity and tensile strength. For local cracks or weak areas, carbon fiber cloth can be affixed for reinforcement, which is simple to construct and does not affect the original structure. An additional wall can be built outside the original load-bearing wall to expand the contact area with the prefabricated slab, or the prefabricated slab can be recast to increase its strength.

Foundation treatment cannot be overlooked. Grouting reinforcement can be adopted, where cement grout is injected beneath the foundation to fill voids and improve load-bearing capacity. The foundation can be enlarged by widening or deepening around the original foundation to increase the bearing area. Mini piles can be driven into weak spots to provide additional support.

Connection point reinforcement needs to be strengthened. Steel tie rods can be installed between walls and floor slabs to enhance connection strength. Concrete can be poured at connection points to form an integral structure. Connection bolts and plates can be reinforced to improve earthquake resistance.

Floor and roof cover reinforcement requires targeted treatment. If the prefabricated slab is pulled apart or damaged, it can be refilled with cement mortar. When the roof moves, iron pipes can be used for support or brick piers can be added. For brick-wood structure houses, nails can be used to strengthen the connection between the wooden roof truss and purlins, pads can be used to strengthen the connection between the gable wall and purlins, and diagonal braces can be added between wooden columns for reinforcement.

Roof reinforcement can involve adding reinforced concrete beams or reinforcing steel mesh to enhance load-bearing capacity.

Reinforcement precautions: Before reinforcement, conduct a comprehensive inspection of the house's structural condition and potential issues. Select reinforcement materials that meet standards. During construction, strictly follow the design plan, avoid arbitrary changes, minimize damage to the original structure, and ensure tight integration between new and old materials. Reinforcement of beamless prefabricated slab houses is highly specialized, and it is recommended to be carried out by a qualified construction team.