1. Stacked floor slabs have good integrity and continuity, which is beneficial for enhancing the seismic performance of buildings..

2. A large amount of assembly work on site is greatly reduced compared to the original cast-in-place operation..

Solid Lifting Socket Cross Pin

3. Adopting integrated design and construction of architecture and decoration, the ideal state is that decoration can be carried out synchronously with the main construction..

4. The standardization of design and the informatization of management, the more standardized the components, the higher the production efficiency, and the corresponding component costs will decrease. With the digital management of the factory, the cost-effectiveness of the entire prefabricated building will become higher and higher..

1. The stacked panels are stacked with the ribs facing upwards, and it is strictly prohibited to invert them. The components should have clear lifting points, attachment points, and tension node markings. Cushion blocks should be set at the bottom of each layer of stacked panels, and the position of the cushion blocks under the components should be consistent with the lifting position during demolding and hoisting. Pads must also be installed between each layer of thin plates, and the pads should be aligned up and down. The number of stacked layers should not exceed 6, and there should be stabilization measures..

2. When prefabricated components enter the site, each component must undergo on-site acceptance inspection, mainly focusing on the appearance and specification dimensions of the components. It is required that there should be no serious defects in the appearance quality, and there should be no exposed reinforcement or honeycomb, pitting, or cracks that affect the performance of the structure..

According to the requirements of the prefabricated technical regulations, full hall supports with a spacing of no more than 1.8m should be set up under the prefabricated composite board. However, if the actual spacing of the full hall support is less than 1200mm, it does not meet the safety and stability requirements, and the instability of the composite board on the frame cannot guarantee the accuracy of its position. For safety reasons, the bottom of the composite board and the cast-in-place frame should be set up with a spacing of 900 * 900mm to meet the stability and accuracy requirements. When setting up plug-in scaffolding, attention should be paid to checking that the free end should be less than 650mm, the scaffolding should be connected as a whole, and the sweeping rod should be continuously set, among other regulatory requirements..

When installing laminated panels, 600mm wide horizontal templates should be set on both sides of the beam/wall and supported to ensure safe operation of workers. Increasing the stiffness of the wall top/beam side is more conducive to ensuring the verticality of the wall and the stability of the beam side template..

It is not advisable to choose a tower crane smaller than QTZ63 for the lifting of laminated panels. In the early stage of the project, the load of prefabricated components should be reviewed for tower crane selection, and the tower crane must fully cover the prefabricated building and the stacking area of laminated panels. The laminated board should be lifted 50 centimeters above the ground and stopped. The force on the steel wire rope and hook should be checked to keep the laminated board level. Then, it should be lifted above the working layer. When lifting, the horizontal angle of the sling should not be less than 60 °, and should not be less than 45 °, that is, the length of the steel wire rope for the laminated panel component should not be less than 3 m. When the wind is above level 5, lifting should be stopped..

(1) At the support of the slab end, the longitudinal load-bearing steel bars inside the prefabricated slab should extend from the slab end and anchor into the post poured concrete of the supporting beam or wall. The anchoring length should not be less than 5d (d is the diameter of the longitudinal load-bearing steel bars) and should extend beyond the centerline of the support..

(2) The thickness of the prefabricated board of the composite board should not be less than 60mm, and the thickness of the post poured concrete composite layer should not be less than 60mm; When the prefabricated board of the laminated board adopts a hollow board, the cavity at the end of the board should be sealed; For composite panels with a span greater than 3m, it is advisable to use truss reinforced concrete composite panels; For composite panels with a span greater than 6m, it is advisable to use prestressed concrete prefabricated panels; Laminated panels with a thickness greater than 180mm,.