Selecting method of stress suspender used for hydraulic lifting and leveling of circular structure

Abstract

The invention discloses a selecting method of a stress suspender used for hydraulic lifting and leveling of a circular structure. The selecting method comprises the following steps of (a) assuming that the total number of suspenders is Z, the number of suspenders in a work area is Zg, the number of suspenders in a non-work area is Zf, and Zf = Z-Zg; (b), assuming that m jacks are arranged on each suspender in series, lifting force of each jack is Pg, and stress of each work suspender is Ng, and Ng = m*Pg; (c), determining the distance between the total resultant force Nc and a center line of the circular structure; (d), determining a function relation between the PG, the m, the Zg, the Z and the self weight W of the circular structure; (e), determining work stress Nj of a static load suspender; and (f), selecting a proper suspender specification. By the adoption of the method, the stress of a lifting and leveling suspender of the circular structure can be calculated accurately, thus a basis can be provided for selection of a proper suspender, and safe proceeding of construction can be ensured.

Description

technical field [0001] The invention relates to the field of engineering construction, in particular to a method for selecting a stressed suspender used for hydraulic lifting and leveling of a circular structure. Background technique [0002] In engineering construction and installation, there are many circular (disc or ring) structures, such as water tanks, which are large steel grid structures or reinforced concrete structures, and most of them require overall hydraulic lifting and leveling. The lifting boom can be According to the lifting force, select steel strands or round steel bars with appropriate specifications or diameters, and use steel strands or round steel jacks for lifting. There are certain differences in structure between steel strands and round steel jacks, but the working principle exactly the same. [0003] The principle of circular (disc or ring) leveling and rotating is to change the symmetrical force during translation, break the original moment balan...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for selecting a stressed suspender used for hydraulic lifting and leveling of a circular structure, which solves the problem of the failure of the suspender (or hinge) during the hydraulic lifting and leveling process of a circular structure in the past. Line) load is taken into consideration, but only some simple estimates are made, which is likely to cause severe overloading of the suspender (or hinge), resulting in breakage of the suspender (or hinge), which brings serious safety hazards to construction and installation.

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