Steel structure beam type sliding staircase and its construction method
A technology for steel structure beams and stairs, applied in stairs, building structures, stepped structures, etc., can solve the problems of inability to ensure the safety and effectiveness of escape passages, complex stress in node areas, and inappropriate overall stress calculation, etc. The effect of quality, promotion value, and reduction of design workload
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Embodiment 1
[0046] according to Figure 1-9 The shown steel structure beam type sliding staircase at least includes a staircase foundation 1, a structural bottom frame ladder beam 6 and a platform beam, and the upper part of the structural bottom frame ladder beam 6 is detachably connected to the platform beam by bolts, and is characterized in that: It also includes a limit sliding device, a non-bottom frame beam 8, a structural frame beam 7 and a connecting mechanism; the limit slide device is connected to the beam type staircase foundation 1, and the lower part of the structural bottom frame ladder beam 6 passes through the limit The sliding device is connected with the stair foundation 1; two sides of the structural frame beam 7 are respectively provided with a pick ear 9, and the middle part of the non-bottom frame beam 8 is provided with a pick ear 9; There are through holes, and the connecting mechanism connects and fixes the non-bottom frame beam 8 and the structural frame beam 7 t...
Embodiment 2
[0054] according to figure 1 , figure 2 and image 3 The steel structure beam type sliding staircase shown differs from the first embodiment in that the limiting sliding device includes embedded parts 2, embedded bolts 3, steel plates 4 and anchoring steel bars 13; the embedded parts 2 Pre-buried on the beam-type staircase foundation 1, the anchor steel bar 13 is connected to the lower surface of the embedded part 2; the steel plate 4 is connected to the upper surface of the embedded part 2; the center of the embedded part 2 and the steel plate 4 are respectively provided with reserved bolt holes; the embedded bolts 3 are connected in the reserved bolt holes.
[0055] In actual use, the steel plate 4 is welded with the structural bottom frame ladder beam 6, and is connected with the steel plate 4 by embedded bolts 3. The limit sliding device adopts this technical solution, which can effectively release the displacement under the action of the earthquake, so that the stiffn...
Embodiment 3
[0057] according to figure 1 , figure 2 and image 3 The steel structure beam type sliding staircase shown differs from the second embodiment in that the anchoring steel bar 13 is 2Φ8.
[0058] Further, the connection between the embedded part 2 and the anchoring steel bar 13 is welded.
[0059] Further, the embedded parts 2 are buried along the length of the steps.
[0060] In actual use, the anchoring steel bar 13 adopts 2Φ8, which can effectively anchor the embedded steel plate in the underlying foundation, and effectively transmit the frictional force generated by the displacement of the beam staircase.
[0061] The connection between the embedded part 2 and the anchoring steel bar 13 is welded; the steel plate 4 is connected with the embedded part 2 by the limited embedded bolt 3, and the bolt holes, especially the oval bolt holes, are helpful for effective Release displacement.
[0062] In actual use, the steel plate 4 and the steel plate at the bottom of the beam ...
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