Intelligent Identification and Constraint System of Roof Deformation

Abstract

The invention relates to an intelligent identification and restraint system for roof deformation. The system comprises a prestressed loading subsystem, a sliding shoe horizontal displacement recognition subsystem and a computer acquisition control subsystem. The prestressed loading subsystem comprises a hydraulic cylinder, an active end counterforce frame, a passive end counterforce frame, a ground anchor, a steel strand clamp and a steel strand. The skid shoe horizontal displacement recognition subsystem includes a sliding shoe, a sliding track, a limit plate, a seasoning plate, a strain gauge, a shoe bottom plate and a lug plate. The computer acquisition control subsystem includes a computer and a hydraulic console, the hydraulic cylinder is connected to the hydraulic console through a first data line, the strain gauge is connected to the computer through a second data line, and the hydraulic console and the computer are connected through a third data line. According to the system, the sliding track at a support is not subjected to special treatment, the problem that both the vertical force and the excessive horizontal displacement of the sliding shoe exist, and the slip construction scheme of such arched steel roofs can be implemented.

Description

technical field [0001] The invention relates to the field of on-site preparation, handling or processing of building materials or building components, in particular to an intelligent identification and restraint system for roof deformation. Background technique [0002] The hydraulic synchronous sliding technology uses hydraulic crawlers as the main driving equipment, and uses computer control to adjust the overall hydraulic sliding construction technology. It is mainly used in the overall construction field of long-span steel roof structures. Usually, the sliding track is laid along the axis of the roof support on the upper surface of the lower civil beam corresponding to the support, and a high-altitude assembly platform is set at one end of the roof. position, and then proceed to the assembly and sliding of the next slip unit, construction in sequence, and cumulative sliding to the design position one by one. During the sliding process, the sliding track only bears the ...

AI Technical Summary

Problems solved by technology

When the construction schedule is tight, there are intersecting operations between civil construction and steel roof construction, and the construction site cannot meet the needs of scaffolding and large-scale hoisting machinery, hydraulic synchronous sliding construction is still a better solution

When this type of structure adopts the traditional hydraulic synchronous sliding construction method, there are two major technical problems: First, the arched steel roof usually only has supports at the arch foot. And when the flat arch effect is significant (the rise-span ratio is less than 1 / 5), the support not only bears the self-weight of the steel roof, but also generates a large horizontal force in the direction of the arch extension span. When sliding construction is adopted, this horizontal force is finally determined by The sliding track bears the burden. In actual construction, the sliding track cannot bear such a large horizontal force; second, the sliding unit is usually assembled at high altitude. When unloading the high-altitude support tire frame, only the lower support of the bearing shoe is retained. , the existence of the arch effect causes a large vertical deformation of the sliding unit during the unloading process. How to control the vertical deformation of the sliding unit within a reasonable range is also a technical problem different from the conventional structural sliding

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