CN214995385U

CN214995385U - Scissors type laminated plate type stair assembled in sections

Info

Publication number: CN214995385U
Application number: CN202120501544.1U
Authority: CN
Inventors: 梁建国; 赵方舟; 黄宗贵; 李复军
Original assignee: Changsha University of Science and Technology; Hunan No6 Engineering Co Ltd
Current assignee: Changsha University of Science and Technology; Hunan No6 Engineering Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-12-03
Anticipated expiration: 2031-03-09

Abstract

The utility model relates to a scissor type superposed plate type stair assembled in sections, which comprises a prefabricated platform plate, a cast-in-situ platform beam, a section prefabricated bench plate, an upper layer cast-in-situ bench plate and a step; the cast-in-place platform beam and the cast-in-place ladder mouth beam are supported on shear walls on two sides of the stair, one end of the prefabricated ladder section plate is obliquely placed on the cast-in-place platform beam, and truss reinforcing steel bars and longitudinal anchoring reinforcing steel bars are pre-embedded in the prefabricated ladder section plate; the other end of the prefabricated special-shaped beam is lapped on the prefabricated special-shaped beam and fixed by inserting steel bars through an anchoring pore of the prefabricated plate, and the cast-in-place step is poured on the segmented prefabricated stair section plate to form a fixedly connected superposed plate type stair plate; the segmented prefabricated bench slab and the cast-in-place step are connected through truss steel bars; the longitudinal anchoring steel bars extend out of two ends of the segmented prefabricated ladder section plates and are bent into the cast-in-place platform beam, the prefabricated plates are divided into a end a and a end b and are respectively arranged on the lower side and the upper side of the prefabricated special-shaped beam, and the whole structure is distributed in an X shape.

Description

Scissors type laminated plate type stair assembled in sections

Technical Field

The utility model relates to an assembly building technical field, in particular to scissors formula coincide board-like stair structure of segmentation equipment.

Background

The assembled building is more and more concerned because of the advantages of energy saving, environmental protection, shortening of construction period and the like, and a plurality of components are in more than one prefabricated form, so that the selection during construction is greatly increased, and the possibility of prefabricating more building types is provided.

In the conventional high-rise prefabricated stairway, a scissor type fully prefabricated stairway is mainly used, the form is single, the weight of the fully prefabricated stairway is relatively heavy, and the requirements on the specification and the arrangement of a tower crane are high; if the prefabricated staircase with the weight exceeding the hoisting weight of the tower crane is encountered, the problem is solved.

Therefore, in order to solve the above technical problems, there is a need to provide an innovative and sectional assembled scissors type laminated plate stair to overcome the above-mentioned drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at lightening the overweight problem of prefabricated staircase hoist and mount of complete to two kinds of thinking of concatenation segmentation prefabricated plate and coincide stair greatly lighten hoist and mount weight.

The utility model relates to a scissors formula coincide board-like stair structure of segmentation equipment, including prefabricated landing slab, cast-in-place landing beam, cast-in-place ladder mouth roof beam, prefabricated landing slab of segmentation, cast-in-place mark time. One end of the prefabricated bench slab is obliquely placed on the cast-in-place platform beam, and truss reinforcing steel bars and longitudinal anchoring reinforcing steel bars are pre-embedded in the prefabricated bench slab; the other end of the prefabricated special-shaped beam is fixed in a lap joint mode, and the cast-in-place step is poured on the segmented prefabricated stair section plate to form a fixedly connected superposed plate type stair plate; the segmented prefabricated bench slab and the cast-in-place step are connected through truss steel bars; the longitudinal anchoring steel bars extend out of two ends of the segmented prefabricated ladder section plates and are bent into the cast-in-place ladder beam, the prefabricated plates are divided into a end a and a end b and are respectively arranged on the lower side and the upper side of the prefabricated special-shaped beam, and the whole structure is distributed in an X shape.

Furthermore, a construction adjusting seam with the thickness of 20mm is reserved before the two prefabricated bench slabs and the prefabricated special-shaped beam are lapped.

Furthermore, pre-buried hoisting points are pre-buried on the two prefabricated bench boards.

Furthermore, the thickness of the shear type laminated plate type stair plate assembled in sections is larger than or equal to 130mm (130 mm is shown in the attached drawing), and the thickness of the prefabricated stair section plate is 60-80 mm (70 mm is shown in the attached drawing).

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a scissors formula coincide plate stair of segmentation equipment not only realize the semi-prefabrication of prefabricated stair, and the advantage of full play coincide component still adopts the mode of segmentation concatenation prefabricated plate, greatly reduces self weight, reduces the specification requirement of tower crane, and easy installation reduces manufacturing cost, and it is convenient to transport, can realize prefabricated component's streamlined production simultaneously.

Drawings

FIG. 1 is a cross-sectional view of a side stair of the preferred embodiment of the present invention;

FIG. 2 is a top view of a preferred embodiment of the present invention;

FIG. 3 is a top view of the segmented prefabricated bench a of FIG. 1;

FIG. 4 is a top view of the segmented prefabricated bench b of FIG. 1;

fig. 5 is a detailed construction view of the prefabricated profiled beam in fig. 1.

Fig. 6 is an effect view of a lateral stair portion according to the preferred embodiment of the present invention.

1. A platform beam is cast in situ; 2. prefabricating a platform plate; 3. the method comprises the steps of (a) prefabricating bench plates in a segmented mode; 4. a ladder way beam is cast in situ; 5. pouring the mark in situ; 6. plate anchoring reinforcing steel bars; 7. longitudinally anchoring the reinforcing steel bars; 8. truss reinforcing steel bars 9 and precast slab anchoring pore canals; 10. prefabricating a special-shaped beam; 11. pre-burying a lifting point; 12. prefabricating a main beam part of the special-shaped beam; 13. Prefabricating a special-shaped beam auxiliary beam part; 14. a section lap joint position; 15. the b end lap joint position; 16. a shear wall.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a scissors formula coincide board-like stair structure of segmentation equipment, including cast-in-place platform roof beam 1, prefabricated platform slab 2, segmentation prefabricated bench board (a and b)3, cast-in-place ladder-way roof beam 4, cast-in-place step 5, board anchor reinforcing bar 6, vertical anchor reinforcing bar 7, truss reinforcing bar 8, prefabricated plate anchor pore 9, prefabricated special-shaped roof beam 10; cast-in-place landing beam 1, cast-in-place ladder way 4 and prefabricated landing slab 2 are anchored through the reinforcing bar that prefabricated landing slab stretches out to form one and be used for the overlap joint the platform of prefabricated coincide stair one end of segmentation, prefabricated coincide stair of segmentation includes prefabricated bench board of segmentation (a and b)3 and cast-in-place 5 of marking time, wherein prefabricated bench board of segmentation is through overlap joint on prefabricated special-shaped beam 10 and fixed in order to connect into a whole, and should reserve 20 mm's construction adjustment seam before the overlap joint is fixed, and insert the reinforcing bar through prefabricated plate anchor pore 9 and fix and grout, in order to connect into a complete prefabricated stair bench, finally pour to mark time and mark time promptly cast-in-place 5 of marking time, improve the wholeness, form a prefabricated coincide stair of segmentation.

As shown in fig. 2, in combination with the four-part construction diagram 5 of the prefabricated special-shaped beam, a stair sections are arranged on the lower side of the prefabricated special-shaped beam, namely a prefabricated special-shaped beam main beam part 12, b stair sections are arranged on the upper side of the prefabricated special-shaped beam, namely a prefabricated special-shaped beam auxiliary beam part 13, and finally reinforcing steel bars are inserted through prefabricated plate anchoring holes 9 to form a whole with the prefabricated special-shaped beam, wherein the cast-in-place platform beam 1, the cast-in-place ladder way beam 4, the prefabricated special-shaped beam main beam part 12 and the prefabricated special-shaped beam auxiliary beam part 13 are supported on shear walls 16 on two sides of the stair.

As shown in fig. 3 and 4, before the segmental prefabricated bench slabs a and b are lapped with the prefabricated special-shaped beam, the segmental prefabricated bench slabs are hoisted by pre-burying hoisting points 11.

As shown in fig. 6, the overlapping effect of the staircase on one side and the profiled beam and the final overall effect of the staircase can be referenced.

Although embodiments of the present invention have been described herein, it will be understood by those skilled in the art that variations may be made to the examples described herein without departing from the spirit of the invention. The above embodiments are merely exemplary and should not be taken as limiting the scope of the invention, which is defined by the examples herein.

Claims

1. The utility model provides a scissors formula coincide board-like stair of segmentation equipment, its characterized in that, includes prefabricated landing slab, cast-in-place platform beam, segmentation prefabricated bench board, cast-in-place step, prefabricated landing slab sets up relatively on the floor of every floor, and the reinforcing bar anchor that stretches out through prefabricated landing slab to form one and be used for the overlap joint the platform of prefabricated coincide stair one end of segmentation to the support is on stair both sides shear force wall, and the prefabricated bench board of segmentation comes the overlap joint through prefabricated special-shaped beam to fix to become a complete prefabricated stair bench, prefabricated special-shaped beam also bears on stair both sides shear force wall, and cast in-place step concreting through the prefabricated coincide stair of segmentation to adopt same technology construction to opposite side stair, form scissors formula coincide board-like stair of segmentation equipment.

2. A scissors-type laminated slab stairway as claimed in claim 1 wherein said segmented prefabricated bench slab is secured in overlapping relation by prefabricated profiled beams.

3. A scissors-type laminated slab stairway as claimed in claim 1 wherein said cast in situ tread is anchored to the segmented prefabricated flights by truss rebar to form complete laminated flights.

4. A scissors assembly stair as in claim 1 wherein said segmented prefabricated flight deck is adapted to be lapped on a cast in place platform beam at one end.