Multi-directional adjustable space grid support for easy overall assembly

Abstract

The invention discloses a space lattice support convenient for whole assembling and capable of being multi-directionally adjusted. The space lattice support comprises a vertical support bottom plate and a lateral support bottom plate, which are fixedly arranged on a steel reinforced concrete support and are vertical to each other, wherein a support ball is arranged at the upper end of the vertical support bottom plate; a steel pipe sleeve is arranged on a side wall of the lateral support bottom plate; a retractable steel pipe along a spanning direction is arranged in the steel pipe sleeve; one end of the steel pipe is fixed together with the supporting ball and an outer wall of the steel pipe is welded with the steel pipe sleeve. According to the space lattice support provided by the invention, safety requirements of engineering are guaranteed and whole stress can be more definite, early-stage design and analysis work is reduced and the construction cost is reduced; an installation distance is convenient to adjust, adverse impacts caused by concrete foundation and shell installation construction deviation in a construction site are overcome, and site construction can meet requirements on the support in engineering design specifications very well, so that the construction efficiency is improved. The space lattice support has a wide application and popularization prospect.

Description

technical field [0001] The invention belongs to a space grid support structure, in particular to a multi-directional adjustable space grid support which is convenient for overall assembly. Background technique [0002] The spatial grid structure represented by reticulated shells is widely used in building structures because of its light weight, good overall rigidity, convenient construction, and good seismic performance. [0003] The design of support nodes and the assumption of support conditions are the technical key points in the design of long-span spatial grid structures. The success or failure of its design is directly related to whether the boundary condition assumptions of the spatial grid structure are valid, whether the actual force condition of the spatial grid structure is consistent with the calculation model, and affects the overall stability and safety of the spatial grid structure. [0004] Under the action of temperature, the spatial grid structure represen...

AI Technical Summary

Problems solved by technology

[0005] The traditional two-way support of the cylindrical shell structure is directly welded to the support bottom plate by the support stiffener in the vertical direction, and directly welded to the support bottom plate by the short steel pipe with a conical head and welded with stiffening ribs in the lateral direction. Clear, but when the structure is assembled as a whole, because the support is bidirectionally constrained, it is easy to install the vertical support, and it is extremely difficult to install the lateral support

[0006] This type of support cannot overcome the influence of concrete pouring errors on the construction site, and it is often necessary to cut and open the processed support on site, and then rework and weld it on site, which not only increases the difficulty of site construction, but also increases unsafe factors. On-site construction caused great difficulties

[0007] This type of support cannot overcome the construction error caused by the assembly of the grid structure, resulting in difficulty in positioning

Furthermore, the nodes of the reticulated shell structure are complex, and it is difficult for the node center to ensure that the design center of the node is consistent with the center of the rotating sphere of the support, which leads to the unclear force of the reticulated shell structure, which will bring inconvenience to the early design and construction and installation of the project

Images