Gantry rigid frame structure is the most commonly used structural form of prefabricated industrial warehouses, and its application advantages are reflected in many aspects.From the point of view of force performance, the gantry rigid frame has a clear force and a clear force transmission path, which can effectively withstand vertical and horizontal loads.The rigid frame beams and columns are just connected to form an overall force system with good spatial stiffness.From the economic point of view, the cross-section of the gantry rigid frame components can be optimized according to the bending moment distribution, minimizing the amount of steel used and reducing the project cost.From the perspective of construction speed, the form of gantry rigid frame components is simple, which is convenient for factory prefabrication and on-site installation, and can greatly shorten the construction period.These advantages make the gantry rigid frame the preferred structural solution for prefabricated industrial warehouses.

In the design of gantry rigid frames, the handling of key nodes is particularly important.The connecting nodes of beams and columns are usually connected by end plates and fixed by high-strength bolts.The node design needs to ensure sufficient strength and stiffness, while considering the feasibility of construction.The roof nodes and cornice nodes also need to be carefully designed to ensure waterproofing and reasonable structure.The setting of the support system is essential to ensure the overall stability of the structure, and the inter-column support and roof support need to be arranged according to specifications.The design of purlin and wall beams needs to consider the different effects of wind suction and wind pressure to ensure the safety and reliability of the enclosure system.

The construction and installation of door-type rigid frames must strictly follow the specifications and plans.Basic re-testing is a necessary work before installation, and the position and elevation of the anchor bolts must be accurate.The verticality of steel column hoisting needs to be controlled, the deflection of steel beam hoisting needs to be controlled, and the connecting bolts need to be tightened according to the prescribed torque.Temporary support needs to be set up during the installation process to ensure the safety of the structure before forming a stable system.After the overall installation is completed, retest and adjustment are required to ensure that the deviations are within the allowable range.The installation of roof and wall purlins needs to ensure accurate spacing to create conditions for the installation of the enclosure system.The strict implementation of these installation points ensures the safety, reliability and service life of the gantry rigid frame structure.