Construction technology of steel structure sliding installation

1. steel structure manufacturer tells important technical content

The collective jacking and selection technology of scheming machine control is a forerunner technology of steel structure and large-scale equipment. It integrates machinery, hydraulic pressure, scheming machine control, sensor monitoring and other technologies, and deals with the difficulties that traditional hoisting technology and large-scale hoisting machine cannot overcome in lifting height, lifting component, structural plane connection, operation garden, etc.The construction of the receiving technology is quiet and reliable, the technology is sophisticated, the technology is advanced, and the economic benefits are obvious.The technology receives the principle of “load-bearing of flexible steel strand, cluster of hydraulic cylinders, synchronous selection of control of planner”.During selection or jacking construction, the planner is used to accurately control the synchronization of each point.

　　2.Technical objectives

It is necessary to consider the strength, rigidity and stability of the load-bearing structure (permanent or temporary) and the selected steel structure or equipment together.It is necessary to check the force bearing function of the structure under the construction shape, plan the force of each item and lifting point, and equip the jack.The bearing capacity and collective stability of the construction support or substructure and foundation bottom shall be checked to ensure sufficient quietness in the most unlucky environment.During construction, the asynchronous value of each action point shall be selected through reasonable planning.

The rope ruler selected by the selection method, first, strive to lose the height of the bearing structure and ensure its stability, second, ensure the stability and in place quietness of the selected steel structure or equipment in the selection.The basic yardstick to determine the number and location of selection points is: first, to ensure the stability of the selected steel structure or equipment in the selection process; under the condition of ensuring quiet and quality, only the selection points are eliminated; the selection equipment carries its own skills to meet the design requirements.The rope ruler selected by the selection equipment is: it can meet the stress requirements in the selection, with compact structure, robust and durable, convenient repair, and engineering necessity (such as journey, selection speed, quiet cover, etc.).

　　3.Important technical characteristics of slip method

The slip method is widely used.In addition to the one-way truss, the two-way truss or grid structure with less rigidity can also receive the sliding method device by increasing the support points (reducing the span), increasing the width of the assembly platform and increasing the number of assembled trusses on the platform.

      The sliding pushing device can receive the control of the synchronous hydraulic crawler by the planner.The equipment has high automation level, convenient operation, good quietness, high reliability, wide use and strong universality.

　　4.Important technical steps of slip method

　    1) steel structure manufacturer’s construction plan: construction is guided by the construction plan, including: separation of sliding units, assembly platform and slideway erection, high-altitude assembly, traction system, sliding by sections or accumulated sliding, landing in place, construction monitoring, emergency plan, etc.

　　2) High altitude assembly platform erection and truss assembly.

　　3) Set the slip track.

　　4) Device synchronous slip system.

　    5) Stress and strain monitoring: ensure that the construction is carried out under the controllable shape.