The truss processing factory offers various support types for trusses, including peripheral and point supports. The peripheral support method, which is commonly used today, involves utilizing the unused connecting functions around the truss perimeter on columns or load-bearing beams. Point support refers to the truss being unused on the top of a standalone column, with no connection to other structures.

The truss structure generally employs an upper chain support method. When the action of the building requires the use of web member support, vertical or inclined edge frame structures should be created at the perimeter of the truss supports to ensure the geometric integrity of the truss and efficiently transfer both vertical and horizontal loads from the upper chain to the supports.

The horizontal bending strain within the total plan of the double-sided steamed dumplings on the grid shelf is relatively small. To ensure the reliable performance of the structural total plan outside the rows of frames and the effective transmission and distribution of wind loads and other horizontal loads acting on the steel truss structure, closed horizontal supports should be set around the grid of the shelf. For large-span structures or when supporting around the web members, closed horizontal supports should be set along the grid near the web members.

For a truss with more supporting points, due to the insufficient support, the internal forces around the precast components at the top of the columns are generally very high. Placing a column cap at the top of the column can reduce the span of support for the truss and distribute the internal forces around the precast components of the supporting columns. The connection function is also difficult to manage, hence a truss with more supports is usually best fitted with a column cap at the top of the column.

Column caps should be positioned beneath the overall plan of the web girder (as shown below), and they can also be set above the upper chain plan or use an umbrella-shaped column cap. The column cap method can be adapted to the requirements of building functions (such as air circulation, sunlight exposure, etc.) by employing different techniques.

The supporting structure of the gridshell, including its support connection function and the edge prefabricated components, is crucial for the appropriate load-bearing capacity of the gridshell. If the necessary edge constraint conditions cannot be achieved, the gridshell's load-bearing characteristics, which are centered around the thermal stress of the plastic film, cannot be met. This may result in a significant increase in bending internal forces, causing changes in the internal forces within the prefabricated gridshell components, and even leading to reversed signs of internal forces. In addition to reliably transmitting vertical loads, the supporting structure of the gridshell should also ensure the necessary edge constraints for different gridshell structural forms; the edge prefabricated components should meet the bending strain requirements and be integrated into the overall calculation with the gridshell structure.

Comparisons of various types of net shells should comply with the following constraints:

The support points of the inclined shell should ensure constraints against horizontal displacement.

When the auxiliary surface net shell is supported along two longitudinal edges, the support points should ensure the constraint conditions for resisting the horizontal displacement of the side edges.

3. Hyperbolic paraboloid shell structures should transfer loads to the substructure based on the edge prefabricated components.

4. The network shell and the four components that form the parabolic surface network shell are supported along the edges by prefabricated components.