4results about How to "Reduce construction height" patented technology

The invention provides a construction method for subsections of a bottom side tank of a liquefied gas ship, which comprises the following steps of: firstly, dividing the subsections of the bottom side tank into three parts, namely an inclined plate middle group, a bottom plate middle group and a bilge curved middle group by taking a bilge linear change position as a boundary; thirdly, the three middle sets are manufactured respectively, and internal related outfitting pieces are pre-buried; and finally, the three parts are assembled in a normal state, butt joints are welded, bulk parts are installed, and internal outfitting parts are installed in place. According to the method, the construction height can be reduced, the scaffold erection workload is reduced, repeated scaffold erection is effectively avoided, and the labor cost is effectively saved; in addition, the installation precision is remarkably improved, and reworking caused by poor assembly precision is reduced; the division method of the bottom side tank sections is optimized, so that the construction difficulty is reduced; and finally, the three parts of the middle group are constructed at the same time, and parts assembled and welded in the large group stage in the traditional construction mode are moved forwards to the middle group stage, so that the construction time of the large group is greatly shortened.

The utility model provides a kind of electromechanical engineering equipment hanger structure, it is related to electromechanical equipment installation technical field, including two groups of mounting bracket, each group of mounting bracket is provided with a pair, the bottom end of two groups of mounting bracket is movably installed with supporting plate, a pair of steel wire rope is installed between the mounting bracket, a pair of steel wire rope is wound on the rotating roller, the bottom end of steel wire rope is connected with the surface of supporting plate, and each mounting bracket in two groups of mounting bracket is installed with motor, and the output end of motor is connected with the one end transmission of rotating roller by coupling. The device is lowered by the extension of a pair of steel wire rope when rotating roller rotates, reduces construction height, and the equipment is installed by operator, reduces construction risk, and improves construction efficiency.

The present invention discloses a prefabricated vertical light-weight template for assembled box culverts and a manufacturing method and a prefabricated method for box culverts, including a base, an outer mold, a connecting rod mechanism, an inner mold, an end mold and a hydraulic support mechanism. The base is composed of two longitudinal beams, three transverse beams and two walking platforms. The outer mold is composed of four integral templates, each template is attached with a steel plate inside and welded with a diagonal brace outside. The inner mold is composed of an inner layer of grid ribs and an outer layer of inner mold steel plate. The inner mold steel plate is stamped from a whole piece of steel plate. The whole section is provided with only one joint. Two longitudinal ribs are provided at the joint of the folded section. Walking wheels are provided at the lower end of the longitudinal ribs. The assembly and disassembly of the inner mold is realized by the extension and contraction of the hydraulic support mechanism. The outer mold of the present invention adopts an integral, large-block template design, which can be driven by a connecting rod mechanism or a hydraulic system. The inner mold is driven by a full hydraulic support. The whole section is provided with only one joint. Vertical casting is adopted, and the end plates are matched for production. The finished segment has a good appearance effect.

The invention discloses a reverse building method for a hyperbolic steel box girder, which comprises the following steps of: S1, optimizing a model, and reducing the linear height difference of the steel box girder; s2, arranging a plurality of monitoring and measuring points at each stage when the steel box girder is assembled; and S3, the steel box girders are assembled according to the reverse construction sequence. The operation intensity of constructors is reduced, the full penetration welding quality is guaranteed, the production efficiency is improved, and therefore the safe and efficient production requirements are met.