CN217557459U

CN217557459U - Connecting structure for bench and rest platform

Info

Publication number: CN217557459U
Application number: CN202221071022.3U
Authority: CN
Inventors: 刘术金; 贺丽华; 邱同波
Original assignee: Weifang Jinyi Steel Structural Engineering Technical Advisory Co ltd
Current assignee: Weifang Jinyi Steel Structural Engineering Technical Advisory Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-10-11
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses a bench and rest platform connection structure, including upper bench, lower floor's bench and rest platform, still include the slip stop device, the slip stop device includes the double-screw bolt, and the radial dimension is greater than the steel pipe of the diameter of double-screw bolt, and set up the limiting plate in steel pipe one end, be provided with on the platform girder steel of rest platform with double-screw bolt clearance fit's mounting hole, the one end of double-screw bolt is passed the steel pipe with be connected with first lock nut behind the limiting plate, the other end of double-screw bolt is passed and is connected with second lock nut behind the mounting hole; the sliding ends of the upper ladder section and the lower ladder section are respectively poured on the corresponding sliding limiting devices. The utility model discloses bench and half space connection structure have both simplified the structure, have solved the problem that the bench drops under the extreme condition such as earthquake again.

Description

Connecting structure for bench and rest platform

Technical Field

The utility model relates to a steel construction building technical field, concretely relates to bench and half space connection structure.

Background

The stairs are vertical traffic junction between floors in building and mainly comprise continuous stair sections, rest platforms, enclosure members and the like.

Present concrete stair, the one end of its bench is the stiff end, and the other end is the slip end, adopts following mounting means usually:

the upper end of bench is fixed end, and the lower extreme of bench is fixed into the end that slides, and in upper stair section and lower floor stair section handing-over position department, one side is the end that slides of upper stair section, and the another side is the stiff end of lower floor's bench.

Although the installation mode can meet the use requirement of the stair, the sliding end is correspondingly provided with the expansion joint, so that the problems of more expansion joint arrangement positions and complex structure exist, and the construction efficiency and the attractiveness are seriously reduced; meanwhile, the sliding end of the ladder section is not provided with the sliding limiting device, so that the ladder section is easy to fall off when the instantaneous displacement of the ladder section is too large under the condition of extreme ends such as rare earthquakes, the phenomenon of an escape channel is damaged, and the safety of the stairs is greatly reduced.

SUMMERY OF THE UTILITY MODEL

To the above defect that prior art exists, the utility model provides a bench and half space connection structure, this bench and half space connection structure have both simplified the structure, have solved the problem that the bench drops under the extreme condition such as earthquake again.

In order to solve the technical problem, the utility model discloses a technical scheme be:

the connecting structure of the bench and the rest platform comprises an upper-layer bench, a lower-layer bench and the rest platform, and further comprises a sliding limiting device, wherein the sliding limiting device comprises a stud, a steel pipe with the radial size larger than the diameter of the stud and a limiting plate arranged at one end of the steel pipe, a mounting hole in clearance fit with the stud is formed in a platform steel beam of the rest platform, one end of the stud penetrates through the steel pipe and the limiting plate and then is connected with a first locking nut, and the other end of the stud penetrates through the mounting hole and then is connected with a second locking nut; and the sliding ends of the upper-layer bench and the lower-layer bench are respectively poured on the corresponding sliding limiting devices.

Wherein, the platform girder steel with the upper ladder section with be provided with the sliding pad between the ladder section of lower floor, the sliding pad corresponds the position department of double-screw bolt is provided with the confession the hole of dodging that the double-screw bolt passed, dodge the hole with double-screw bolt clearance fit.

The diameters of the mounting hole and the avoiding hole are both 5-10 mm larger than the diameter of the stud.

Wherein, the sliding pad is a polytetrafluoroethylene pad, a plastic pad or a stainless steel pad.

And the stud is connected with a locknut in a threaded manner, and the locknut is tightly pressed on the second locking nut.

Wherein, the rest platform is still including setting up landing slab on the platform girder steel, the landing slab with upper terraced section with be provided with the expansion joint between the lower floor's terraced section, the expansion joint passes through seal structure and seals.

The sealing structure comprises an elastic filling isolation plate, a foam rod and a sealant, wherein the elastic filling isolation plate, the foam rod and the sealant are arranged in the expansion joint, the elastic filling isolation plate is located between the platform steel beam and the foam rod, and the foam rod is located between the elastic filling isolation plate and the sealant.

The platform steel beam is provided with four sliding limiting devices, the upper-layer ladder sections are poured on the two sliding limiting devices, and the lower-layer ladder sections are poured on the other two sliding limiting devices.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the ladder section and rest platform connecting structure provided by the utility model has the advantages that the sliding ends of the upper ladder section and the lower ladder section are arranged at the rest platform, so that the arrangement positions of the expansion joints are reduced, the structure is simplified, the construction efficiency is improved, and the attractiveness is improved; meanwhile, due to the arrangement of the sliding limiting device, when the upper-layer bench section or the lower-layer bench section has small sliding displacement, the stud can be deformed coordinately through the inner cavity of the steel pipe and the mounting hole, the sliding of the upper-layer bench section or the lower-layer bench section is not influenced, and the influence of the bench section rigidity on the building main body structure rigidity is eliminated; when upper strata bench or lower floor bench sliding displacement is great, the double-screw bolt can effectively restrict the slip of upper strata bench or lower floor bench, prevents the bench landing, has guaranteed the sparse function of safety of whole stair when the earthquake.

Drawings

Fig. 1 is a schematic structural view of a connection structure of a bench and a rest platform of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 1;

in the figure: 1. an upper bench section; 2. a lower bench section; 3. a resting platform; 31. a platform steel beam; 32. a platform plate; 33. mounting holes; 4. a steel pipe; 5. a limiting plate; 6. a stud; 7. a first lock nut; 8. a second lock nut; 9. a locknut; 10. a sliding pad; 101. avoiding holes; 11. an elastic filled insulation panel; 12. a foam rod; 13. and (7) sealing the glue.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 to 3, the connecting structure of the bench and the rest platform comprises an upper-layer bench 1, a lower-layer bench 2, a rest platform 3 and a sliding limiting device, wherein the sliding limiting device comprises a stud 6, a steel pipe 4 with a radial size larger than the diameter of the stud 6 and a limiting plate 5 arranged at one end of the steel pipe 4, a mounting hole 33 in clearance fit with the stud 6 is formed in a platform steel beam 31, one end of the stud 6 penetrates through the steel pipe 4 and the limiting plate 5 and then is connected with a first locking nut 7, and the other end of the stud 6 penetrates through the mounting hole 33 and then is connected with a second locking nut 8; the sliding ends of the upper ladder section 1 and the lower ladder section 2 are respectively poured on the corresponding sliding limiting devices.

The limiting plate 5 and the steel pipe 4 in the embodiment are welded into a whole, and the sliding ends of the upper-layer bench 1 and the lower-layer bench 2 are respectively poured on the end parts of the steel pipe 4, the limiting plate 5 and the stud 6 of the corresponding sliding limiting device and the first locking nut 7.

By adopting the structure, when the upper-layer bench 1 or the lower-layer bench 2 has smaller sliding displacement, the stud 6 can be coordinately deformed through the inner cavity of the steel pipe 4 and the mounting hole 33 without influencing the sliding of the upper-layer bench 1 or the lower-layer bench 2, so that the influence of the bench rigidity on the rigidity of the main structure of the building is eliminated; when upper stair 1 or lower floor stair 2 slip displacement is great, the slip of upper stair 1 or lower floor stair 2 can effectively be restricted to double-screw bolt 6, prevents the stair landing to guarantee the safe sparse function of whole stair when the earthquake.

The steel pipe 4 in this embodiment may be a circular steel pipe or a square steel pipe, which is specifically selected according to actual requirements, and this embodiment is not limited thereto.

Because the sliding pad 10 has small friction coefficient and high compressive strength, the earthquake action can be effectively released, so the sliding pad 10 is arranged between the platform steel beam 31 and the upper-layer ladder section 1 and the lower-layer ladder section 2, the avoiding hole 101 for the stud 6 to pass is arranged at the position of the sliding pad 10 corresponding to the stud 6, and the avoiding hole 101 is in clearance fit with the stud 6.

In order to ensure the reliability of the structural design, in this embodiment, the diameters of the mounting hole 33 and the avoiding hole 101 are preferably greater than the diameter of the stud 6 by 5 to 10 mm.

The sliding pad 10 in this embodiment is preferably a teflon pad, a plastic pad, or a stainless steel pad, and in practical applications, other sliding pads may be used, which is not limited in this embodiment.

In order to further enhance the locking effect, the present embodiment provides an elastic pad and a flat pad between the first lock nut 7 and the limiting plate 5, and simultaneously, a flat pad is provided between the second lock nut 8 and the platform steel beam 31.

In order to prevent the second lock nut 8 from loosening, the lock nut 9 is screwed to the stud 6, and the lock nut 9 is pressed against the second lock nut 8.

In order to further improve the anti-loosening effect, the exposed threads at the end part of the stud 6 can be disturbed after the anti-loosening nut 9 is installed.

The platform girder steel 31 in this embodiment is provided with four slip stop devices, and the pouring of upper ladder section 1 is on two of them slip stop devices, and the pouring of lower floor ladder section 2 is on two other slip stop devices, and in practical application, the quantity of not injecing slip stop device can set up according to actual demand.

Rest platform 3 in this embodiment is still including setting up the landing slab 32 on platform girder steel 31, is provided with the expansion joint between landing slab 32 and upper terraced section 1 and lower floor's bench 2, and the expansion joint passes through seal structure sealedly.

Specifically, the sealing structure comprises an elastic filling isolation plate 11, a foam rod 12 and a sealant 13 which are arranged in the expansion joint, wherein the elastic filling isolation plate 11 is located between the platform steel beam 31 and the foam rod 12, and the foam rod 12 is located between the elastic filling isolation plate 11 and the sealant 13.

During construction, firstly, a sliding pad 10 is installed on a platform steel beam 31 of the rest platform 3; then, one end of the stud 6 penetrates through the steel pipe 4 and the limiting plate 5 and then is connected with the first lock nut 7, the other end of the stud 6 penetrates through the mounting hole 33 and then is connected with the second lock nut 8 and the locknut 9, the second lock nut 8 can be slightly loosened, and the locknut 9 is screwed; and finally, disturbing the exposed screw thread of the stud 6, and finishing the installation of the sliding limiting device.

After the sliding limiting device is installed, a formwork is erected on site, reinforcing meshes of the upper-layer bench 1 and the lower-layer bench 2 are bound, an expansion joint is reserved, the elastic filling isolation plate 11 is pre-arranged in the expansion joint, then concrete is poured to manufacture the upper-layer bench 1 and the lower-layer bench 2, and finally the expansion joint is filled with the foam rod 12 and sealed by the sealant 13.

Above detailed introduction ladder section and half space connection structure's concrete structure, compared with the prior art, the utility model discloses ladder section and half space connection structure have not only simplified the structure, have improved the efficiency of construction and pleasing to the eye degree, simultaneously, have strengthened the security performance again, have guaranteed the safe sparse function of whole stair when the earthquake.

The present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes without creative work from the above conception, and all the changes fall within the protection scope of the present invention.

Claims

1. The connecting structure of the bench and the rest platform comprises an upper-layer bench, a lower-layer bench and the rest platform, and is characterized by also comprising a sliding limiting device,

the sliding limiting device comprises a stud, a steel pipe and a limiting plate, the steel pipe is larger than the stud in diameter in the radial dimension, the limiting plate is arranged at one end of the steel pipe, a mounting hole in clearance fit with the stud is formed in a platform steel beam of the rest platform, one end of the stud penetrates through the steel pipe and the limiting plate and then is connected with a first locking nut, and the other end of the stud penetrates through the mounting hole and then is connected with a second locking nut; the sliding ends of the upper ladder section and the lower ladder section are respectively poured on the corresponding sliding limiting devices.

2. The bench and rest platform connection structure of claim 1, wherein a sliding pad is arranged between the platform steel beam and the upper and lower bench, and an avoiding hole for the stud to pass through is arranged at a position of the sliding pad corresponding to the stud, and the avoiding hole is in clearance fit with the stud.

3. The stair section and rest platform connecting structure according to claim 2, wherein the diameters of the mounting holes and the avoiding holes are both 5-10 mm larger than the diameter of the studs.

4. The bench and rest platform connection of claim 2, wherein the sliding pads are teflon pads, plastic pads or stainless steel pads.

5. The bench and rest platform connection structure of claim 1, wherein a locknut is screwed on the stud, and the locknut is pressed on the second locknut.

6. The bench and rest platform connection structure of claim 1, further comprising a deck disposed on the deck steel beams, wherein an expansion joint is disposed between the deck and the upper and lower bench, and the expansion joint is sealed by a sealing structure.

7. The bench and rest platform connection structure of claim 6, wherein the sealing structure comprises an elastically filled isolation plate, a foam rod and a sealant arranged in the expansion joint, the elastically filled isolation plate is located between the platform steel beam and the foam rod, and the foam rod is located between the elastically filled isolation plate and the sealant.

8. A bench and rest platform connection according to claim 1, wherein four said slide stops are provided on the platform steel beam, the upper bench being cast on two of said slide stops and the lower bench being cast on the other two of said slide stops.