Combined sectional steel concrete beam

Abstract

The invention provides a combined sectional steel concrete beam. The combined sectional steel concrete beam comprises combined sectional steel, concrete and connecting nodes, wherein reasonable spacing is kept between the combined sectional steel and the outer surface layer of the concrete through configuration; the combined sectional steel and frame beam sectional steel are kept in consistent upper flange top elevation through configuration; the spacing between central axes distributed by secondary beams of the combined sectional steel concrete beam is 2 to 3 times of beam width. Compared with a method of increasing the sectional dimension of a building structure, the combined sectional steel concrete beam provided by the invention has the advantages that the beam height can be well controlled while the structure bearing capacity and the applicability are ensured, and more using space of a building is ensured.

Description

technical field [0001] The invention relates to the design of a building structure with a large span and a girder height restriction requirement in the field of civil engineering, in particular to a steel concrete beam. Background technique [0002] In today's society, China's engineering construction has begun to enter the stage of equal emphasis on quantity, quality and function. At the same time, building structures are also facing new challenges. With the increasing demand for material life and the transformation of production technology, engineers have always considered how to obtain better use functions and the best return on investment in a limited building space, and thus make the building structure It is developing in the direction of large span, large bay, large column network and multi-function. Engineering practice in recent years has proved that the traditional reinforced concrete structure, steel structure and other structural forms can no longer meet the per...

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Problems solved by technology

[0004] In order to cope with buildings with large spans, limited beam heights, and high comfort requirements, traditional methods such as increasing the cross-sectional size of the main structure are generally used in the structural design of new buildings, which has certain application value in the engineering field. The size is too large to meet the requirements of the building space, and there are connection nodes and construction technology difficulties, the actual effect is not ideal

[0005] According to the novelty search results conducted by the inventor, there is no technical solution for structural optimization using composite steel-concrete beams

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