Large-span variable-section beam

Abstract

The invention relates to the field of building construction, in particular to a large-span variable-section beam. The beam comprises columns, cantilever sections, simply supported sections and short beam sections; the cantilever sections are located on the two sides and fixedly connected with the columns; the simply supported sections are located in the middle, and at least one ends of the simplysupported sections are connected with the cantilever sections through the short beam sections; the short beam sections comprises cantilever side short beam sections and simply supported side short beam sections, wherein the cantilever side short beam sections are hinged to the simply supported side short beam sections, the ends of the cantilever side short beam sections are fixedly connected withthe cantilever sections, and the ends of the simply supported side short beam sections are fixedly connected with the simply supported sections; and the section height of the short beam sections is smaller than the section height of the cantilever sections and the section height of the simply supported sections. According to the large-span variable-section beam, the local section height can be effectively reduced, so that the local use space height of a building is increased, the space use requirement of the building is met, the building floor height does not need to be increased due to devicepipelines and the like, and the construction cost is saved.

Description

technical field [0001] The invention relates to the field of building structures, in particular to a large-span variable-section beam. Background technique [0002] With the rapid development of the economy and the improvement of people's living standards, people's demand for construction products is also increasing. High-rise and super high-rise buildings such as shopping malls, hotels, office buildings, airports, railway stations, and large urban complexes many. In order to meet the requirements of building quality, local long-span structures are unavoidable. Local long-span structures mean that local structures require a larger cross-sectional height of beams. For the sake of building economy, building height control is relatively strict, and long-span spaces need to be considered comprehensively The space reserved for equipment and pipelines, architectural decoration practices, and the setting of fire shutters are generally insufficient for the cross-sectional height of...

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