CN212389051U - Stair connection application device made of different materials - Google Patents

Stair connection application device made of different materials Download PDF

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Publication number
CN212389051U
CN212389051U CN202020546557.6U CN202020546557U CN212389051U CN 212389051 U CN212389051 U CN 212389051U CN 202020546557 U CN202020546557 U CN 202020546557U CN 212389051 U CN212389051 U CN 212389051U
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stair
steel
concrete stair
newly
tread
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CN202020546557.6U
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马春莉
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Datang Environment Industry Group Co Ltd
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Datang Environment Industry Group Co Ltd
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Abstract

The utility model provides a stair connection application device made of different materials, which comprises a bearing beam, wherein a support concrete stair beam is fixedly connected inside the bearing beam, the position of the outer surface of one side of the support concrete stair beam, which is close to the upper end, is fixedly connected with an original concrete stair tread, the outer surface of one side of the support concrete stair beam is fixedly connected with a newly-added steel stair beam, the outer surface of one side of the newly-added steel stair beam is fixedly connected with a newly-added steel stair, the device can separate the newly-added steel stair from the original concrete stair tread, the newly-added steel stair beam is directly connected with the support concrete stair beam, the device does not affect the original concrete stair tread, does not need to calculate the strength, the rigidity and the stability of the original concrete stair tread, only needs to calculate the strength and the deflection of the support concrete stair beam, and has light weight because the newly-added steel stair has less influence on the support concrete stair beam, the difference of whether the newly-added steel ladder participates in the overall earthquake-resistant calculation is not large.

Description

Stair connection application device made of different materials
Technical Field
The utility model belongs to the technical field of newly-increased stair connection technique and specifically relates to an application apparatus is connected to different material stairs.
Background
Along with the development of economy, some buildings such as factory buildings, office buildings, apartments and the like need to be additionally provided with a layer on the top layer, corresponding concrete stairs need to be additionally provided, in houses in earthquake-proof fortification areas, main structural members are earthquake-proof members, non-structural member stairs attached to structures also need corresponding reliable connection earthquake-proof measures, overhanging concrete stairs or steel stairs are adopted in the traditional aspects of economy, durability and attractiveness, but the concrete stairs are heavy and generally not adopted, the steel stairs are mainly adopted, a connecting steel plate is fixed at the end of a column by adopting expansion bolts, then the short edge of a steel structure stair platform plate is welded at the other side of the steel plate, an inclined support is arranged under the plate, the support is also fixed on the column by the expansion bolts and the connecting plate, the number of the bolts is determined by calculation, the size of welding feet of welding lines, the length of the welding lines, the thickness of the, in order to ensure the stability of landing slab, the steel ladder other end is arranged on current landing, but need account concrete stair step's bearing capacity, stair not only will have sufficient bearing capacity and wholeness, still guarantee simultaneously that non-structural component can not take place to drop under above extreme condition, most concrete stairs adopt board stair, board stair's board generally only is according to one-way flexural member design, but the board bears axial force and shear force as diagonal bracing member at the earthquake effect medium plate, consequently, board and ladder beam junction stress is great, when the earthquake takes place, absorb earthquake wave energy, caused the seismic damage, need consolidate, need increase half space's thickness and arrangement of reinforcement rate.
1. The steel ladder is added on the traditional concrete stair, the other end of the steel ladder is arranged on the concrete ladder plate of the traditional stair, the ladder plate of the plate-type stair is generally designed only according to a one-way bending component, but the middle plate is used as an oblique supporting component to bear axial force and shearing force under the earthquake action, so that the stress at the joint of the ladder plate and the ladder beam is larger;
2. when an earthquake occurs, the energy of earthquake waves is absorbed, so that the earthquake damage is caused, and the thickness and the reinforcement ratio of the ladder plate need to be increased.
Therefore, a stair connection application device made of different materials is provided.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a different material stair connection application device, the device is to newly-increased steel ladder and former concrete stair step board departure, newly-increased steel stair step roof beam is direct to be connected with supporting concrete stair step roof beam, do not produce the influence to former concrete stair step board, do not need the intensity of the former concrete stair step board of accounting, rigidity and stability, only need the intensity and the amount of deflection of accounting support concrete stair roof beam can, because of newly-increased steel ladder light in weight, it is less to supporting concrete stair roof beam influence, whether newly-increased steel ladder participates in whole antidetonation calculation difference not big, with the problem of proposing in solving above-mentioned background art.
The utility model provides an application device is connected to different material stairs, including the spandrel girder, the inside fixedly connected with of spandrel girder supports concrete stair roof beam, one side surface of supporting concrete stair roof beam is close to the former concrete stair tread of the position fixedly connected with of upper end, one side fixed surface of supporting concrete stair roof beam is connected with newly-increased steel stair roof beam, one side fixed surface of newly-increased steel stair roof beam is connected with newly-increased steel ladder.
Through adopting above-mentioned technical scheme, the device is to newly-increased steel ladder and former concrete stair step board departure, newly-increased steel stair step roof beam is direct to be connected with supporting concrete stair roof beam, do not produce the influence to former concrete stair step board, do not need the intensity of the former concrete stair step board of account, rigidity and stability, only need the account support concrete stair roof beam intensity and amount of deflection can, because of newly-increased steel ladder light in weight, it is less to supporting concrete stair roof beam influence, it is little whether newly-increased steel ladder participates in whole antidetonation calculation difference.
Preferably, the newly-increased steel ladder is separated from the original concrete stair step plate.
By adopting the technical scheme, the newly-added steel ladder is separated from the original concrete stair tread, so that the rigidity of the original concrete stair tread is not influenced.
Preferably, newly-increased steel stair roof beam is located the lower extreme of former concrete stair tread, newly-increased steel stair roof beam and former concrete stair tread's interval 100 millimeters.
Through adopting above-mentioned technical scheme, arrange the lower extreme at former concrete stair step board and keep certain distance with former concrete stair step board through newly-increased steel stair step roof beam, reduce the probability that the marking time of newly-increased steel ladder and former concrete stair step board collided with each other.
Preferably, the supporting concrete stair beam is provided with a side-buried channel steel, an external surface of one side of the channel steel is provided with an expansion chemical bolt, and the expansion chemical bolt penetrates through the channel steel and extends to the inside of the supporting concrete stair beam.
By adopting the technical scheme, the quantity of the expansion chemical bolts, the size of the welding leg and the length of the welding seam are calculated through the load of the newly added steel ladder, and the influence probability on the original concrete stair step plate is reduced.
Preferably, the step of newly-increased steel ladder department adopts the angle steel with the difference in height of former concrete stair step board, the angle steel upper berth decorative pattern steel sheet is unanimous with the elevation of former concrete stair step board.
Through adopting above-mentioned technical scheme, be convenient for the people to walk on newly-increased steel ladder through adding the angle steel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the newly-added steel stair is separated from the original concrete stair step plate, the newly-added steel stair step beam is directly connected with the supporting concrete stair step beam, the newly-added steel stair step beam is arranged below the original concrete stair step plate and keeps a certain distance with the original concrete stair step plate, the situation that the newly-added steel stair step collides with the original concrete stair step plate is avoided, the newly-added steel stair step beam is welded with the channel steel buried at the side of the supporting concrete stair step beam, the channel steel is fixed on the supporting concrete stair step beam through expansion chemical bolts, the number of the expansion chemical bolts is calculated through the load of the newly-added steel stair step, the size of a welding foot and the length of a welding seam weaken the influence on the original concrete stair step plate.
2. The strength, the rigidity and the stability of the original concrete stair tread do not need to be checked, the original concrete stair tread is not damaged, the original concrete stair tread does not need to be reinforced, and therefore the strength and the deflection of the concrete stair beam are considered to be checked and supported in the design.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a structural view of the present invention;
FIG. 2 is a view showing the combination of the expansion chemical bolts and the newly added steel stair beams of the present invention;
fig. 3 is the utility model discloses the combination view of newly-increased steel ladder and angle steel:
FIG. 4 is a view showing the combination of the new steel ladder and the angle steel
Description of reference numerals:
1. a spandrel girder; 2. supporting the concrete stair beam; 3. original concrete stair treads; 4. newly adding a steel stair beam; 5. expanding the chemical bolt; 6. newly adding a steel ladder; 7. and (5) angle steel.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, the present invention provides a technical solution:
the utility model provides a different materials stair are connected and are used device, as shown in fig. 1 and fig. 2, including spandrel girder 1, the inside fixedly connected with of spandrel girder 1 supports concrete stair roof beam 2, one side surface of supporting concrete stair roof beam 2 is close to the former concrete stair tread of position fixedly connected with 3 of upper end, one side surface fixedly connected with of supporting concrete stair roof beam 2 increases steel stair roof beam 4 newly, one side surface fixedly connected with of increasing steel stair roof beam 4 increases steel ladder 6 newly.
Through adopting above-mentioned technical scheme, the device is to newly-increased steel ladder 6 and former concrete stair step 3 departure, newly-increased steel stair step 4 is direct to be connected with support concrete stair step 2, do not produce the influence to former concrete stair step 3, do not need the intensity of the former concrete stair step 3 of accounting, rigidity and stability, only need the intensity and the amount of deflection that the support concrete stair step 2 of accounting can, because of newly-increased steel ladder 6 light in weight, it is less to supporting concrete stair step 2 influence, newly-increased steel ladder 6 participates in whole antidetonation and calculates the difference little.
Specifically, as shown in fig. 1 and 2, the new steel ladder 6 is separated from the original concrete stair tread 3.
Through adopting above-mentioned technical scheme, take off through newly-increased steel ladder 6 and former concrete stair tread 3 and leave, do not influence the rigidity of former concrete stair tread 3.
Specifically, as shown in fig. 1 and 2, the newly added steel stair beam 4 is located at the lower end of the original concrete stair tread 3, and the distance between the newly added steel stair beam 4 and the original concrete stair tread 3 is 100 mm.
Through adopting above-mentioned technical scheme, arrange at the lower extreme of former concrete stair step board 3 and keep the certain distance with former concrete stair step board 3 through newly-increased steel stair step roof beam 4, reduce the probability that marks time and former concrete stair step board 3 of newly-increased steel ladder 6 collide with each other.
Specifically, as shown in fig. 1 and 2, the supporting concrete stair beam 2 is provided with a side-buried channel steel, an external surface of one side of the channel steel is provided with an expansion chemical bolt 5, and the expansion chemical bolt 5 penetrates through the channel steel and extends into the supporting concrete stair beam 2.
By adopting the technical scheme, the quantity, the size and the length of the welding seam of the expansion chemical bolts 5 are calculated by newly increasing the load of the steel ladder 6, and the influence probability on the original concrete stair tread 3 is reduced.
Specifically, as shown in fig. 3 and 4, the step of the newly added steel ladder 6 and the height difference of the original concrete stair tread 3 adopt angle steel 7, and the angle steel 7 is paved with a pattern steel plate and is consistent with the elevation of the original concrete stair tread 3.
By adopting the technical scheme, the angle steel 7 is added, so that a person can conveniently walk on the newly-added steel ladder 6.
The working principle is as follows: for the separation of the newly added steel stair 6 from the original concrete stair tread 3, the newly added steel stair tread 4 is directly connected with the supporting concrete stair tread 2, the newly added steel stair tread 4 is arranged below the original concrete stair tread 3 and keeps a certain distance with the original concrete stair tread 3, the collision between the steps of the newly added steel stair 6 and the original concrete stair tread 3 is avoided, the newly added steel stair tread 4 is welded with the channel steel embedded at the side of the supporting concrete stair tread 2, the channel steel is fixed on the supporting concrete stair tread 2 by adopting expansion chemical bolts 5, the number of the expansion chemical bolts 5 is calculated through the load of the newly added steel stair 6, the size of a welding leg and the length of a welding seam, the influence on the original concrete stair tread 3 is weakened, the strength, the rigidity and the stability of the original concrete stair tread 3 do not need to be checked, the original concrete stair tread 3 does not generate damage, and the original concrete stair tread 3 does not need to be reinforced, therefore, the strength and deflection of the concrete stair beam 2 are considered in the design, and the angle steel 7 is added to facilitate people to walk on the newly added steel stair 6.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (5)

1. The utility model provides a different materials stair are connected and are used device, a serial communication port, including spandrel girder (1), the inside fixedly connected with of spandrel girder (1) supports concrete stair roof beam (2), the former concrete stair tread of position fixedly connected with (3) of one side surface near the upper end of supporting concrete stair roof beam (2), one side surface fixedly connected with of supporting concrete stair roof beam (2) adds new steel stair roof beam (4), one side surface fixedly connected with of new steel stair roof beam (4) adds new steel ladder (6).
2. A stair connection application device of different materials according to claim 1, wherein the new steel ladder (6) is separated from the original concrete stair tread (3).
3. The stair connection application device of claim 1, wherein the newly added steel stair step beam (4) is located at the lower end of the original concrete stair step plate (3), and the distance between the newly added steel stair step beam (4) and the original concrete stair step plate (3) is 100 mm.
4. A stair connection application device of different materials according to claim 1, wherein the supporting concrete stair beam (2) is provided with a side-buried channel steel, one outer surface of the channel steel is provided with an expansion chemical bolt (5), and the expansion chemical bolt (5) penetrates through the channel steel and extends to the inside of the supporting concrete stair beam (2).
5. The stair connection application device of claim 1, wherein angle steel (7) is adopted for the step of the newly added steel stair (6) and the height difference of the original concrete stair tread (3), and the angle steel (7) is paved with a pattern steel plate and is consistent with the elevation of the original concrete stair tread (3).
CN202020546557.6U 2020-04-14 2020-04-14 Stair connection application device made of different materials Active CN212389051U (en)

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Application Number Priority Date Filing Date Title
CN202020546557.6U CN212389051U (en) 2020-04-14 2020-04-14 Stair connection application device made of different materials

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CN212389051U true CN212389051U (en) 2021-01-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113404322A (en) * 2021-06-15 2021-09-17 中国电建集团贵阳勘测设计研究院有限公司 Method for transforming steel ladder into concrete ladder in high-rise concrete structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113404322A (en) * 2021-06-15 2021-09-17 中国电建集团贵阳勘测设计研究院有限公司 Method for transforming steel ladder into concrete ladder in high-rise concrete structure

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