Net rack steel pull rod tensioning construction method and construction tool

Abstract

The invention discloses a net rack steel pull rod tensioning construction method and construction tool. The net rack steel pull rod tensioning construction method comprises the steps that a tensioningtool is arranged on a net rack joint, and a tensioning device is installed on the tensioning tool; the two ends of a steel pull rod set are connected to the net rack joint; tensioning is conducted through the tensioning device till preset tensioning force is reached; and the tensioning device is dismounted. The net rack steel pull rod tensioning construction tool comprises a connecting body usedfor installing the tensioning device. When the tensioning device in the embodiment of the invention tensions a net rack, the steel pull rod set is also subjected to the tensioning force applied to thenet rack by the tensioning device and deforms, the tensioning force of the tensioning device is gradually transferred to the steel pull rod set, after tensioning of the net rack is completed and thetensioning device is dismounted, the degree of internal stress changes of the steel pull rod set after the tensioning device is dismounted is reduced, the tensioning tool on the net rack joint can also be applied to other construction processes after the tensioning device is dismounted, and universality and practicability are good.

Description

technical field [0001] The invention relates to a network frame construction method, in particular to a network frame steel tension rod tensioning construction method and construction tooling. Background technique [0002] With the development of space structures around the world, grid structures have been gradually applied to buildings that require large spans and large spaces due to their high-efficiency mechanical properties and novel and beautiful appearance. Prestressed and stretched to make the grid form a structurally stable spatial structure. Before the grid frame is stretched through the steel tie rods, special design for the tooling is required for the tensioning. The tooling is a one-time tooling and cannot be used in other tensioning construction projects. During the pulling process, the rod body is not deformed by force. After the tensioning tool is unloaded, the stress in the rod body of the steel tie rod is redistributed, and the tension and deformation of th...

AI Technical Summary

Problems solved by technology

Before the grid frame is stretched through the steel tie rods, special design for the tooling is required for the tensioning. The tooling is a one-time tooling and cannot be used in other tensioning construction projects. During the pulling process, the rod body is not deformed by force. After the tensioning tool is unloaded, the stress in the steel tie rod body is redistributed, and the tension and deformation of the steel tie rod are difficult to measure.

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