Beam spanning multilayer deck
A panel and bottom layer technology, applied in bridges, buildings, etc., can solve problems such as unfavorable full utilization, unfavorable girder height, difficulty in adapting to long-span girder bridge structures, etc., to save land resources and urban space, and improve vertical overall stability , Improve the effect of passing ability
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[0096] Example 1: A1 type straddle beam with a grid-shaped cross section
[0097] See figure 1 , The straddle beam is formed by integrally connecting the web 14, the upper flange 12, the lower flange 13, and the panel 15. The cross section is in the shape of a grid with the word "日", with two webs 14 on both sides transversely, and a layer of panel 15 is arranged between the upper flange 12 and the lower flange 13, forming a horizontal single hole and a vertical two-story beam inner channel , The net width of the single hole in the beam is ≥3.5m, ≤15m. The web 14 spans the inner channel of the two-story beam. The web 14 adopts a straight web. The straddle beam adopts a simply supported beam structure, a continuous beam structure, or a rigid frame structure with the column 10 at the bottom layer. The straddle beam adopts prestressed reinforced concrete structure, steel structure or prestressed reinforced concrete and steel composite structure. The web 14 is reinforced with rib...
Example Embodiment
[0098] Example 2: A2 type cross-story beam with a grid-shaped cross section
[0099] See figure 2 A two-layer panel 15 is arranged between the upper flange 12 and the lower flange 13, forming a horizontal single-hole, vertical three-layer beam inner channel, and the web 14 spans the three-layer beam inner channel. The rest is the same as the first embodiment.
Example Embodiment
[0100] Example 3: A3 type cross-story beam with a grid-shaped cross section
[0101] See image 3 , Two webs 14 on both sides, a web 14 in the middle, a layer of panel 15 between the upper flange 12 and the lower flange 13, forming a horizontal double-hole, vertical two-layer beam inner channel, beam inner channel The net width of a single hole is ≥3.5m, ≤10m. The web 14 is not provided with ribs 16, and the upper flange 12, the lower flange 13 and the panel 15 are not provided with ribs 17. The rest is the same as the first embodiment.
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