Beam Connection in Prefabricated Panel Houses

The beam connection in prefabricated panel houses generally refers to a structural measure that enhances the overall structural stability and load-bearing capacity of the house by setting up connecting beams within the prefabricated panel house structure. The following provides an introduction from the aspects of the role of connecting beams, common installation positions, and key construction points:

Role of Connecting Beams

In prefabricated panel houses, connecting beams play a crucial role in connection and reinforcement. On one hand, they can connect scattered prefabricated panels into a whole, enabling the panels to work together to resist external forces when the house is subjected to horizontal forces (such as earthquake forces and wind forces), thereby improving the house's lateral resistance and reducing structural deformation and damage. On the other hand, connecting beams can also more effectively transfer the loads from the upper structure to the lower structure, such as walls or foundations, ensuring a smooth load transfer path and avoiding local stress concentration, thus enhancing the overall load-bearing capacity of the house and extending its service life.

Common Installation Positions

• Top of walls: Installing connecting beams at the top of walls in prefabricated panel houses is a relatively common practice. This can enhance the stability of the walls and prevent them from tilting or collapsing under horizontal forces. At the same time, the connecting beams and prefabricated panels are interconnected, forming an integral frame that improves the spatial stiffness of the house.
• Intersection of longitudinal and transverse walls: The intersection of longitudinal and transverse walls is a structurally complex area where loads are subjected to complex forces. Installing connecting beams here can strengthen the connection at this location, enabling the longitudinal and transverse walls to work together more effectively to bear loads. This helps improve the overall integrity and seismic performance of the house, reducing structural damage caused by poor connections between longitudinal and transverse walls during earthquakes and other disasters.

Key Construction Points

• Material selection: Connecting beams are generally made of reinforced concrete. The specifications and quantity of steel bars should be reasonably configured according to the design loads and structural requirements of the house, and the strength grade of the concrete should also comply with relevant codes and standards to ensure that the connecting beams have sufficient strength and stiffness.
• Connection method: The connections between connecting beams and prefabricated panels, as well as walls, should be firm and reliable. Usually, reserved steel bars or embedded parts are used to weld or bind the connecting beams with the prefabricated panels and walls, ensuring that the connection points can effectively transfer loads.
• Construction sequence: During construction, prefabricated panels should be installed first, followed by the construction of connecting beams. The pouring of connecting beams should be carried out after the prefabricated panels are installed in place and firmly fixed to ensure the connection quality between the connecting beams and the prefabricated panels.