Cantilever crane beam installation process

Abstract

The invention discloses a cantilever type crane beam installing technology. The cantilever type crane beam installing technology comprises the steps that bracket column and crane beam connecting hole adjustment is conducted, chambering installation is adopted, and strengthening plates are additionally arranged on the face not influencing tracks and are drilled; elevation adjustment is conducted, after bracket column installation is finished, whole-course retest is conducted on the bracket column elevation firstly, the manufactured section height of each crane beam is checked, and after errors are found, and abrasive cushion plates are additionally arranged on the surfaces of bracket columns for adjustment; upper beam and lower beam track horizontal distance adjustment is conducted, if adjustment is conducted towards the inner sides of the bracket columns, abrasive cushion plates are additionally arranged at the upper beam and bracket column connecting positions, if adjustment is conducted towards the outer sides of the bracket columns, a notch is formed in an upper beam through repairing, meeting of the requirement for the adjusted distance is the standard, then, flange slabs the same in size are additionally made for equal-strength welding, and the adjusted distance for the outward movement is achieved for the upper beam. By the adoption of the cantilever type crane beam installing technology, construction precision control, construction scheme optimization and integral structure safety control can be more efficiently achieved

Description

technical field [0001] The invention relates to the technical field of installation and construction of a steel structure factory building, and is mainly used for the installation of a cantilevered crane beam in a steel structure factory building. Background technique [0002] With the rapid development of my country's construction steel structure industry, the amount of portal steel structure factory buildings has increased significantly. This structural form can play an active role in improving the efficiency and industrialization of factory building construction, and has a broad market demand space. Steel structure workshops generally have the characteristics of light weight, energy saving, good durability, and good economy. This is in line with my country's energy-saving and industrialization-oriented industry policies. Therefore, my country has successively issued a series of policies to promote the construction and development of steel structure workshops. industrial su...

AI Technical Summary

Problems solved by technology

However, when the cantilever crane is attached to the main steel structure of the heavy-duty steel structure factory building, it is often positioned in three axes, which is easy to form "over-constraint" during construction. Therefore, the control of its installation accuracy has become an urgent problem in the construction process, especially the crane. The construction accuracy control of related components such as beams and corbels will also directly affect the safe operation of crane equipment

However, in this important construction link, there are often current situations where the crane design is out of touch with the steel structure design, the control of crane installation accuracy is too strict, and there is no unified standard for the control accuracy of plant structure construction and crane installation accuracy in the technical specification system. Solved many technical confusion and quality control problems

In view of this, the current solution is mostly to manage and control from the local precision control of the cantilever crane installation, and lack of control from the comprehensive perspective of overall precision control, applicability prediction, safety control and other aspects of plant construction, resulting in the actual construction. The problem of treating the head with a headache and treating the foot with a pain, the impact of the early error of the structural construction cannot be predicted and controlled, and even accumulated to the installation of the cantilever crane, resulting in random opening, random cutting, welding and other problems on site. Then there may be some hidden quality problems