A long-span multi-storey anti-seismic frame structure system and its construction method
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An earthquake-resistant frame and large-span technology, which is applied in earthquake resistance, building components, building structures, etc., can solve the problems of weak earthquake resistance, inconvenient construction, and poor lateral stiffness, and achieve improved seismic performance, convenient construction, and structural durability. uniform force effect
Active Publication Date: 2019-01-15
CHINA AVIATION PLANNING & DESIGN INST GRP
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[0007] The purpose of the present invention is to provide a large-span multi-layer seismic frame structure system and its construction method, to solve the technical problems of poor lateral stiffness and weak seismic capacity of the existing large-span multi-layer frame, and at the same time to solve the problem of poor construction in the prior art Technical problems of convenience and high comprehensive cost
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Embodiment 1
[0060] Embodiment one, see Figure 3-4 As shown, this long-span multi-storey anti-seismic frame structure system includes frame columns, frame beams, secondary beams 7 and floor slabs 18 of each floor, and a four-story frame structure with four horizontal spans and three vertical spans is taken as an example for illustration.
[0061] The frame columns include main frame columns 1 and auxiliary frame columns. There is at least one side auxiliary frame column 2 on each side of the outer grid. The auxiliary frame column can be arranged at full height in the multi-storey anti-seismic frame structure, or only arranged at the bottom of the building along the vertical height of not less than one floor, which is determined according to calculation.
[0062] In this embodiment, the number of side auxiliary frame columns 2 set between each main frame column 1 is 1-3 at the required positions around the building, so that the column spacing is reduced to 2-7m. The specific number depend...
Embodiment 2
[0073] Embodiment two, see Figure 5-6 As shown, this long-span multi-storey anti-seismic frame structure system includes frame columns, frame beams, secondary beams 7 and floor slabs 18 of each floor, and a four-story frame structure with four horizontal spans and three vertical spans is taken as an example for illustration.
[0074] This embodiment Figure 6 Among the four horizontal spans, a side auxiliary frame column 2 is arranged between the main frame columns 1 of the three spans, all of which are four-storey high.
[0075] Among the three longitudinal spans, two of the two spans are arranged with two side auxiliary frame columns 2 between the main frame columns 1, all of which are four-storey high.
[0076] The difference from Embodiment 1 is that stairwells are set at two diagonal positions of the building, so the auxiliary frame columns also include staircase auxiliary frame columns 9 arranged around the building stairwells or elevators. The reason for this arrangem...
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Abstract
The invention discloses a longspan multilayer anti-seismic frame structure system and a construction method thereof. The structure system comprises frame columns, frame girders, secondary girders and floor slabs of each floor. The frame columns include main frame columns and auxiliary frame columns. Each auxiliary frame column comprises at least one side auxiliary frame column. The frame girders comprise first main frame girders, second main frame girders and floor auxiliary frame girders. The first main frame girders are arranged along transversely-longitudinally crossed axis nets, and two ends of each first main frame girder are connected with the adjacent main frame columns respectively. The two ends of each second main frame girder are connected with the corresponding main frame column and the corresponding side auxiliary frame column respectively. Two ends of each secondary girder are connected with the adjacent first main frame girders respectively. Two ends of each floor auxiliary frame girder are connected with the corresponding auxiliary frame column and adjacent girder and column members respectively. The longspan multilayer anti-seismic frame structure system and the construction method thereof have the advantages that the main frame columns, the auxiliary frame columns, the frame girders and the auxiliary frame girders are arranged reasonably in an existing frame structure system to improve structural lateral stiffness and seismic bearing capacity, so that structural stress is uniform, and anti-seismic performance is high.
Description
technical field [0001] The invention belongs to the field of frame structures of multi-storey buildings, and in particular relates to a frame structure and a construction method for multi-storey buildings with large span, high height and large earthquake force. Background technique [0002] With the development of buildings, in modern buildings such as multi-storey industrial plants, warehouses, and exhibition halls, it is required to minimize structural columns in the rooms, that is, to require large beam spans, small column cross-sections, and sometimes high-rise and heavy load requirements. Conventional cast-in-place reinforced concrete structures are difficult to meet this requirement. Prestressed concrete beams can be used for the beams, but the sections are still large and the weight is heavy. The most conventional method currently employed by engineers is to use a steel frame structure. Steel structure is a good structural form with light weight, large span, and goo...
Claims
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