Main factory building structure system for large-scale thermal power plant

Abstract

The invention relates to a main factory building structure system for a large-scale thermal power plant, which comprises a framework part consisting of a coal bunker bay framework and a deaerator bay framework, and a framed bent part consisting of steam turbine hall framed bents, wherein the framework part adopts solid-web profiled bar concrete struts, and the framed bent part adopts reinforced concrete struts; and the profiled bar concrete struts in the framework part are provided with reinforced concrete short shear walls which are arranged at intervals along the transverse direction. The main factory building structure system has good shock resistance and can be arranged flexibly to satisfy various complex process conditions; and simultaneously, the application range of the structure system in designing the main factory building structure systems of thermal power plants which are at 7 and 8 degree areas, have machine sets of over 600 MW and are under the complex process conditions. Relative to the prior system, the main factory building structure system has good structural performance and comparatively low manufacturing cost, and has the advantages of better shock resistance, small column section, more convenient space for process layout, low post-maintenance cost and the like.

Description

technical field [0001] The invention relates to a main workshop structure system of a large-capacity unit in a large-scale thermal power plant, in particular to a main workshop structure system of a large-capacity unit in a high seismic intensity area. Background technique [0002] In recent years, most of the main workshops of newly built large-scale thermal power plants in my country adopt steel structure system or reinforced concrete structure system. Generally speaking, steel structure systems are adopted in high-intensity areas (seismic fortification of degree 8 and above), and steel structures are considered to have better seismic performance; reinforced concrete structural systems are used in low-intensity areas in order to save costs. Although some power plants have used structural systems such as outsourcing steel structures, they have not been widely used. [0003] The structure of the main building of a large-scale thermal power plant is inherently deficient due ...

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Problems solved by technology

[0005] (2) Along the vertical direction of the structure, the arrangement of floors is relatively disorderly, and there are a large number of staggered floors, that is, the structure is unevenly arranged along the vertical stiffness;

[0006] (3) There are a large number of equipment in the structure, and the load of the equipment is large, and the layout is subject to the process arrangement, that is, the structural quality and its load are not uniform in spatial layout;

[0007] (4) There are a large number of special-shaped components and special-shaped nodes in the structure, and the force of the nodes is complicated, and the force transmission path is complicated;

[0008] (5) On the whole, the spatial integrity of the structure is poor, the torsional problem in the high-intensity area is serious, and the simple reinforced concrete structure does not meet the requirements of national standards and current specifications

[0011] Therefore, it is necessary to focus on the structural system of the main building of a large-scale thermal power plant, which has large structural components, many structural staggered floors, large stress and deformation heterogeneity of nodes, large uneven distribution of stiffness and mass, poor horizontal structural continuity, and structural integrity. Poor performance and other problems, a new structural system is proposed to improve the seismic performance of the main workshop structure and effectively reduce the cost

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