Production Methods for Prefabricated Beam Brackets in Houses

There are three main production methods for prefabricated beam brackets in houses: cast-in-place, cement mortar pouring, and villa prefabrication. The specific operations are as follows:

1. Cast-in-Place Method
Cast-in-place beam brackets need to be completed simultaneously with the main structure construction. First, create wooden or metal molds according to the design dimensions, ensuring the inner walls of the molds are smooth and the dimensions are precise. Carpenters fix the molds at predetermined positions on-site (such as below the beam or at wall corners), enhancing structural stability through steel bar binding. Before pouring, apply a release agent (such as waste engine oil) to the inner walls of the molds to facilitate later demolding. Then, mix the concrete according to the ratio and pour it into the molds, using a vibrating rod to fully vibrate and eliminate air bubbles, ensuring density. After the initial setting of the concrete, perform surface finishing, and after the final setting, remove the molds. The curing period should reach 28 days to ensure the strength meets the standards. This method is suitable for scenarios requiring high structural integrity but has a longer construction period and is greatly affected by weather conditions.

2. Cement Mortar Pouring Method
This process requires the提前 (in advance) setup of a support system: lay wooden planks on the roof as the working surface and fix the beam bracket molds with steel pipe supports. When installing the molds, use nails to tightly connect the bottom and side molds, and add limiting molds along the edges of the molds to control dimensional accuracy. Reinforce the back of the molds with wooden sticks for diagonal support to prevent deformation during pouring. After applying waste engine oil as an isolation layer to the inner walls of the molds, pour the cement mortar (it is recommended to use a strength grade of M15 or above) in layers, with each layer not exceeding 15cm in thickness, and compact it with a small vibrator. After pouring, cover with plastic film for moist curing. The molds can be removed after 3 days, and continue curing for another 7 days. This method has lower costs but requires strict control of the mortar mix ratio and vibration quality; otherwise, cracking or hollowing may occur.

3. Villa Prefabricated Beam Bracket Method
Modern villas often adopt two prefabrication processes:

• Hidden Fixing Process: Suitable for minimalist styles, L-shaped metal hangers are pre-embedded on the inner side of the beam brackets, achieving nail-free installation through steel structures (such as angle steels) pre-embedded in the walls. During installation, use a laser level to calibrate the position, ensuring uniform gaps between the beam brackets and the walls.
• GRC Component Assembly Process: Glass fiber reinforced concrete (GRC) prefabricated beam brackets are commonly used in European styles, with each segment having its own mortise-and-tenon type interlocking slots. During installation, first mark the positioning lines on the walls, assemble the components segment by segment, and temporarily fix them with expansion bolts. Finally, pour special adhesive mortar into the joints. GRC components are lightweight and strong but require attention to moisture-proof treatment to avoid long-term exposure to humid environments.

Precautions: All processes must be checked against the design drawings in advance to confirm the dimensions, bearing capacity, and installation positions of the beam brackets; the cast-in-place and pouring processes should be operated by professional masons, and the villa prefabrication process is recommended to be carried out by teams with decoration component installation qualifications; during construction, wear safety protective equipment to avoid the risk of falling objects from heights.