Existing building steel structure stair reinforcing device
By designing a reinforcement device with fasteners and supports between the stair columns and the wall, the deformation problem caused by uneven settlement of steel structure stairs was solved, thereby improving the stability and safety of the stairs and extending their service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-24
AI Technical Summary
The steel structure staircases on the exterior of existing buildings have deformed due to uneven settlement, resulting in insufficient stability and safety hazards. At present, there is a lack of effective reinforcement methods.
Design a reinforcement device that includes stair column fixing components, wall fixing components, and support components connecting the two. The stair column is fixed to the wall by welding and bolting to form a stable support structure and prevent the staircase from sinking or tilting.
It effectively prevents the settlement and tilting of stairs, improves the stability and solidity of stairs, reduces safety hazards, and extends service life.
Smart Images
Figure CN224032254U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to steel structure stair technical field more specifically, relate to a kind of reinforcing device for existing building steel structure stair. BACKGROUND
[0002] The steel structure stair of existing building outdoor, long-term use can be deformed due to uneven settlement, firmness is insufficient, there is security risk, except replacing new stair, there is no standard reinforcing mode at present stage. INVENTION CONTENTS
[0003] In view of above problem, the utility model aims at providing a kind of reinforcing device for existing building steel structure stair, to be connected between stair column and wall body, support connecting stair and wall body, prevent stair subsidence or skew.
[0004] The utility model provides a kind of reinforcing device for existing building steel structure stair, including stair column fixing piece, wall body fixing piece and the support piece being connected between the stair column fixing piece and the wall body fixing piece, wherein,
[0005] The stair column fixing piece includes first fixed plate, and the edge of the first fixed plate is welded along the height direction of the stair column of the steel ladder to be reinforced with the side wall of the stair column;
[0006] The wall body fixing piece includes the second fixed plate being connected with the wall body adjacent to the stair column and the connecting plate being vertically welded in the middle of the second fixed plate;
[0007] The support piece includes the first support plate and the second support plate being butt welded together, another end of the first support plate is connected with the first fixed plate, and another end of the second support plate is connected with the connecting plate.
[0008] The first fixed plate is square steel plate, and reinforcing plate is arranged between the first fixed plate and the side wall of the stair column.
[0009] The second fixed plate and the connecting plate are square, the width of the connecting plate is less than the width of the second fixed plate, through hole is arranged in the four corners of the second fixed plate, and the second fixed plate is fixed with the wall body by chemical bolt passing through the through hole.
[0010] The first support plate and the second support plate are the same rectangular steel plate in appearance, slot is formed in one end of the second support plate along the center line of the second support plate, the width of the slot is the same as the thickness of the first support plate, and the first support plate is inserted in the slot and welded.
[0011] The length of the slot is one third of the length of the second support plate, a second support plate long hole is arranged at one end of the second support plate which is not provided with the slot, the center line of the second support plate long hole coincides with the length direction center line of the second support plate, a connecting plate long hole is arranged on the connecting plate, the connecting plate long hole is parallel to the edge of the connecting plate which is far away from the second fixed plate, and the second support plate and the connecting plate are connected through the bolts which pass through the second support plate long hole and the connecting plate long hole.
[0012] A first support plate long hole is arranged at one end of the first support plate, the center line of the first support plate long hole coincides with the length direction center line of the first support plate, a fixed plate long hole is arranged on the first fixed plate, the fixed plate long hole is parallel to the edge of the first fixed plate which is far away from the stair column, and the first support plate and the first fixed plate are connected through the bolts which pass through the fixed plate long hole and the first support plate long hole.
[0013] The bolt is a hexagonal high-strength bolt, a washer is arranged at both ends of the bolt, and a high-strength nut is screwed at the end of the bolt.
[0014] A reinforcing rib plate is arranged between the second fixed plate and the connecting plate.
[0015] The width of the first support plate is smaller than the width of the first fixed plate, and the width of the second support plate is smaller than the width of the connecting plate.
[0016] The existing building steel structure stair reinforcing device is uniformly arranged between the stair column and the adjacent wall body.
[0017] As can be known from the above description, the existing building steel structure stair reinforcing device provided by the utility model comprises a stair column fixing piece, a wall body fixing piece and a support piece connected between the stair column fixing piece and the wall body fixing piece, the support piece is horizontally supported between the stair column and the wall body, a plurality of the device can be uniformly arranged on each stair column, the stair column cannot continue to sink or be inclined, so that the sinking or inclination of the steel ladder is prevented, the stability and firmness of the steel ladder are ensured, the safety hidden danger is reduced, and the service life of the steel ladder is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0018] Other purposes and results of the utility model will be more apparent and easy to understand by referring to the content of the following description in combination with the drawings and with a more comprehensive understanding of the utility model. In the drawings:
[0019] Figure 1 It is a structural schematic view of the existing building steel structure stair reinforcing device according to the utility model embodiment;
[0020] Figure 2A top view of the existing building steel structure stair reinforcing device according to the embodiment of the utility model;
[0021] Figure 3 A structural schematic view of the stair column fixing piece according to the embodiment of the utility model;
[0022] Figure 4 A structural schematic view of the wall fixing piece according to the embodiment of the utility model;
[0023] Figure 5 A top view of the wall fixing piece according to the embodiment of the utility model;
[0024] Figure 6 A structural schematic view of the first supporting plate according to the embodiment of the utility model;
[0025] Figure 7 A structural schematic view of the second supporting plate according to the embodiment of the utility model;
[0026] Figure 8 A schematic view of the application of the existing building steel structure stair reinforcing device according to the embodiment of the utility model;
[0027] Wherein, 1-stair column fixing piece, 11-first fixing plate, 12-fixing plate long hole, 2-wall fixing piece, 21-second fixing plate, 22-connection plate, 23-connection plate long hole, 24-through hole, 3-supporting piece, 31-first supporting plate, 32-first supporting plate long hole, 33-second supporting plate, 34-second supporting plate long hole, 35-slot, 4-chemical bolt, 5-stair column, 6-wall;
[0028] The same reference numerals in all the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION
[0029] The utility model can be changed and can have various embodiments, and specific embodiments are illustrated in the drawings and described. However, the utility model is not limited to the specific embodiment, and all changes, equivalents and alternatives falling within the scope of the utility model are included, and it should be understood that they are included.
[0030] The ordinal terms such as first, second, etc. can be used to describe various constituent elements, but the constituent elements are not limited to the terms. The terms are only used to distinguish one constituent element from another. For example, without departing from the scope of the claims of the utility model, the second constituent element can be named as the first constituent element, and similarly, the first constituent element can be named as the second constituent element. The terms and / or combinations or one of the items associated with multiple items are included.
[0031] It should be understood that when referring to a certain constituent element being "connected" or "contacted" with other constituent elements, this not only includes the case of being directly connected or contacted with other constituent elements, but also includes the case of other constituent elements being present therebetween. Conversely, when referring to a certain constituent element being "directly connected" or "directly contacted" with other constituent elements, it should be understood that no other constituent elements are present therebetween.
[0032] In the description of the embodiments, when it is recited that a certain constituent element is formed "on or under" another constituent element, the "on or under" includes the case where the two constituent elements are directly contacted with each other or at least one of the other constituent elements is disposed between the two constituent elements. Also, when it is recited as on or under, with a certain constituent element as a reference, not only the upper side direction, but also the lower side direction can be included.
[0033] The terms used in the present application are used only to explain specific embodiments and not to limit the present application. Unless the context clearly indicates otherwise, the singular expression includes the plural expression. In the present application, it should be understood that the terms "include" or "have" and the like are used to specify the presence of features, numbers, steps, operations, constituent elements, components, or combinations thereof described in the specification, and do not preclude the presence or possibility of addition of one or more other features, numbers, steps, operations, constituent elements, components, or combinations thereof.
[0034] Unless otherwise defined, including technical terms or scientific terms, all terms used herein have the same meaning as understood by those skilled in the art. Terms generally defined in a dictionary should be interpreted in accordance with the meaning possessed in the context of the relevant technology, and if not explicitly defined in the present application, should not be interpreted as ideal or overly formal meanings.
[0035] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0036] As Figures 1-8 As shown in the drawings, the reinforcing device for steel structure stairs of existing building according to the embodiments can be used for connecting and reinforcing the outdoor steel ladder with the original building, and can also be used for connecting and reinforcing other steel ladders with adjacent wall bodies.
[0037] The existing building steel structure stair reinforcing device comprises a stair column fixing part 1, a wall fixing part 2 and a support part 3 connected between the stair column fixing part 1 and the wall fixing part 2. The stair column fixing part 1 is used to be connected with the stair column 5 of the steel ladder, the wall fixing part 2 is used to be connected with the wall 6 adjacent to the steel ladder, the stair column fixing part 1 is horizontally opposite to the wall fixing part 2, and the support part 3 is horizontally connected between the stair column fixing part 1 and the wall fixing part 2 to support the stair column 5 and the wall 6 and prevent the stair column 5 from sinking or tilting.
[0038] In order to be firmly connected with the stair column 5, the stair column fixing part 1 can comprise a first fixing plate 11, and an edge of the first fixing plate 11 is welded along the height direction of the stair column 5 of the steel ladder to be reinforced to the side wall of the stair column 5. The steel ladder is supported and installed on the ground by a plurality of steel stair columns, and the design of the stair columns of different steel ladders is different, but the stair columns are all vertically supported upward from the ground. The stair column fixing part 1 is installed on the stair column 5 to be connected and supported with the wall 6, which can better reinforce the steel ladder than being connected at other positions of the steel ladder. Regardless of whether the stair column 5 is a square steel column or a cylindrical column, one edge of the first fixing plate 11 can be vertically welded to the outer wall of the stair column 5, and the first fixing plate 11 is vertical and perpendicular to the wall 6 so as to connect the support part 3.
[0039] In order to be firmly connected with the wall 6, the wall fixing part 2 can comprise a second fixing plate 21 connected with the wall 6 adjacent to the stair column 5 and a connecting plate 22 vertically welded to the middle part of the second fixing plate 21. The second fixing plate 21 is attached to and firmly fixed to the wall 6, and the second connecting plate 22 facilitates the connection of the support part 3.
[0040] In order to be stably supported between the wall 6 and the stair column 5, the support part 3 can comprise a first support plate 31 and a second support plate 33 which are butt-welded together. The other end of the first support plate 31 is connected with the first fixing plate 11, and the other end of the second support plate 33 is connected with the connecting plate 22. The wall fixing part 2 is opposite to the stair column fixing part 1, the first support plate 31 is connected with the first fixing plate 11, the second support plate 33 is connected with the connecting plate 22, the first support plate 31 and the second support plate 33 are butt-welded together, and the support part 3 composed of the first support plate 31 and the second support plate 33 is horizontally supported between the wall fixing part 2 and the stair column fixing part 1. The butt-welding of the first support plate 31 and the second support plate 33 is more firm and solid than single-plate support.
[0041] In one embodiment of the utility model, in order to be stable for first fixed plate 11, first fixed plate 11 is square steel plate, and the side wall between first fixed plate 11 and stair column 5 is provided with reinforcing plate. Any side of square steel plate first fixed plate 11 can be welded with stair column 5 side wall, and the size of first fixed plate 11 can be stable connection support 3 and can be connected. A plurality of reinforcing plates are arranged at the welding place of first fixed plate 11 and stair column 5, which can prevent first fixed plate 11 from being skewed and deformed in the long-term use.
[0042] In one embodiment of the utility model, second fixed plate 21 and connecting plate 22 are square, the width of connecting plate 22 is less than the width of second fixed plate 21, through hole 24 is arranged at the four corners of second fixed plate 21, second fixed plate 21 is fixed with wall 6 by passing through chemical bolt 4 in through hole 24, and chemical bolt is more firm. Second fixed plate 21 is firmly fixed with wall 6 by bolt, connecting plate 22 is firmly welded in the middle of second fixed plate 21, and connecting plate 22 can be arranged as horizontal, and first fixed plate 11 is perpendicular and opposite, which is convenient for installing support 3.
[0043] In one embodiment of the utility model, in order to be more firm for support 3, first support plate 31 and second support plate 33 of support 3 are same size rectangular steel plate, and first support plate 31 and second support plate 33 are welded after being inserted and connected. The specific connecting mode can be that the insertion slot 35 is formed in one end of second support plate 33 along the center line of second support plate 33, the width of insertion slot 35 is same with the thickness of first support plate 31, and first support plate 31 is inserted in insertion slot 35 and welded. The outer circumferential dimension of first support plate 31 and second support plate 33 can be same, first support plate 31 is flat steel plate, after first support plate 31 is inserted into the bottom end of insertion slot 35 of second support plate 33, first support plate 31 and second support plate 33 are perpendicular and the center lines coincide, and are welded at the insertion place. First support plate 31 and second support plate 33 are perpendicular and cross connection firm, and will not be deformed in long-term use, stable and durable.
[0044] In one embodiment of the utility model, in order to facilitate the connection of the second support plate 33 and the wall support 3, the length of the slot 35 is about one third of the length of the second support plate 33, the second support plate long hole 34 is arranged at one end of the second support plate 33 not provided with the slot 35, the center line of the second support plate long hole 34 coincides with the length direction center line of the second support plate 33, the connecting plate long hole 23 is arranged on the connecting plate 22, the connecting plate long hole 23 is parallel to the edge of the connecting plate 22 away from the second fixed plate 21, and the second support plate 33 and the connecting plate 22 are connected through the bolt passing through the second support plate long hole 34 and the connecting plate long hole 23. The second support plate long hole 34 is aligned with the connecting plate long hole 23 and is fastened together through the bolt and the nut, so that the second support plate 33 and the connecting plate 22 can be connected firmly. The second support plate long hole 34 and the connecting plate long hole 23 are both long holes, which facilitates installation and adjustment.
[0045] Since the first fixed plate 11 is installed with the plate surface vertical, the plate surface of the first support plate 31 is also vertical after being connected with the first fixed plate 11, the plate surface of the second support plate 33 is horizontal, and the plate surface of the connecting plate 22 is arranged horizontally, so that the second support plate 33 can be connected conveniently.
[0046] In one embodiment of the utility model, in order to facilitate the connection of the first support plate 31 and the first fixed plate 11, the first support plate long hole 32 is arranged at one end of the first support plate 31, the center line of the first support plate long hole 32 coincides with the length direction center line of the first support plate 31, the fixed plate long hole 12 is arranged on the first fixed plate 11, the fixed plate long hole 12 is parallel to the edge of the first fixed plate 11 away from the stair column, and the first support plate 31 and the first fixed plate 11 are connected through the bolt passing through the fixed plate long hole 12 and the first support plate long hole 32. The first support plate long hole 32 is aligned with the fixed plate long hole 12 and is fastened together through the bolt and the nut, so that the first support plate 31 and the first fixed plate 11 can be connected firmly. The first support plate long hole 32 and the fixed plate long hole 12 are both long holes, which facilitates installation and adjustment.
[0047] In one embodiment of the utility model, the bolt can adopt a hexagonal high-strength bolt, a gasket is arranged at both ends of the bolt, and a high-strength nut is screwed at the end of the bolt. The first support plate 31 and the first fixed plate 11, the second support plate 33 and the connecting plate 22 are all connected through the high-strength bolt, so that the connection is stable and firm.
[0048] In one embodiment of the utility model, the reinforcing rib plate is arranged between the second fixed plate 21 and the connecting plate 22. The reinforcing rib plate is uniformly arranged at the welding position of the second fixed plate 21 and the connecting plate 22, so that the connection of the connecting plate 22 and the second fixed plate 21 is more firm, and deformation in use is prevented.
[0049] In one embodiment of the utility model, in order to stabilize support, the width of the first support plate 31 is less than the width of the first fixed plate 11, and the width of the second support plate 33 is less than the width of the connecting plate 22. The first support plate 31 is basically attached to the middle part of the first fixed plate 11 and is connected by bolt and nut, and the second support plate 33 is basically attached to the middle part of the connecting plate 22 and is connected by bolt and nut, and the connection is stable.
[0050] In one embodiment of the utility model, in order to stabilize the steel ladder, the existing building steel structure stair reinforcing device is evenly arranged between the stair column 5 of the steel ladder and the adjacent wall 6. The stair column 5 adjacent to the wall 6 is reinforced by the existing building steel structure stair reinforcing device, and the existing building steel structure stair reinforcing device is connected between the stair column 5 and the wall 6 without hindering the upstairs and downstairs, and can prevent the sinking and skewing of the stair column 5. The stair column away from the wall 6 can also be reinforced by the existing building steel structure stair reinforcing device without hindering the upstairs and downstairs. The spacing of the existing building steel structure stair reinforcing device is determined according to the specific conditions, and the size of each component is determined according to the gap between the stair column 5 and the wall 6.
[0051] Steel structure stairs are gradually widely used in various building fields due to the advantages of low comprehensive cost, good anti-seismic performance and short construction period. The existing steel structure stairs are transformed and reinforced in the utility model, which can improve the bearing capacity, anti-deformation capacity and anti-seismic performance, thereby prolonging the service life. The problem of deformation caused by long service life of the existing outdoor steel structure stairs of buildings is solved, and the existing buildings are reasonably fixed to meet the use requirements of outdoor steel stairs.
[0052] The existing building steel structure stair reinforcing device according to the utility model is described above with reference to the drawings in an exemplary manner. However, those skilled in the art should understand that various improvements can be made to the existing building steel structure stair reinforcing device proposed in the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the appended claims.
Claims
1. A reinforcement device for existing steel structure staircases, characterized in that, The device comprises a stair column fixing member, a wall fixing member and a support member connected between the stair column fixing member and the wall fixing member, wherein, The stair column fixing member comprises a first fixing plate, the edge of which is welded with the side wall of the stair column of the steel stair to be reinforced along the height direction of the stair column; The wall fixing member comprises a second fixing plate connected with the wall adjacent to the stair column and a connecting plate vertically welded at the middle part of the second fixing plate; The support member comprises a first support plate and a second support plate butt-welded together, the other end of the first support plate being connected with the first fixing plate and the other end of the second support plate being connected with the connecting plate.
2. The retrofitting device for reinforcing a steel structure stair of an existing building according to claim 1, wherein The first fixing plate is a square steel plate, and a reinforcing plate is arranged between the first fixing plate and the side wall of the stair column.
3. The retrofitting device for steel stair of existing building structure according to claim 1, wherein The second fixing plate and the connecting plate are both square, the width of the connecting plate being smaller than that of the second fixing plate, through holes being arranged at the four corners of the second fixing plate, and the second fixing plate being fixed with the wall through chemical bolts passing through the through holes.
4. The retrofitting device for steel stair of existing building structure according to claim 1, wherein The first support plate and the second support plate are rectangular steel plates with the same shape, a slot being formed at one end of the second support plate along the center line of the second support plate, the width of the slot being the same as the thickness of the first support plate, and the first support plate being inserted into the slot and welded.
5. The retrofitting device for steel stair of existing building structure according to claim 4, wherein The length of the slot is one third of the length of the second support plate, a second support plate long hole being arranged at the end of the second support plate without the slot, the center line of the second support plate long hole coinciding with the length direction center line of the second support plate, a connecting plate long hole being arranged on the connecting plate, the connecting plate long hole being parallel to the edge of the connecting plate away from the second fixing plate, and the second support plate and the connecting plate being connected through bolts passing through the second support plate long hole and the connecting plate long hole.
6. The retrofitting device for steel stair of existing building structure according to claim 1, wherein A first support plate long hole is arranged at one end of the first support plate, the center line of the first support plate long hole coinciding with the length direction center line of the first support plate, a fixing plate long hole being arranged on the first fixing plate, the fixing plate long hole being parallel to the edge of the first fixing plate away from the stair column, and the first support plate and the first fixing plate being connected through bolts passing through the fixing plate long hole and the first support plate long hole.
7. The retrofitting device for reinforcing a steel structure stair of an existing building according to claim 5 or 6, wherein The bolts are hexagonal high-strength bolts, washers being arranged at both ends of the bolts, and high-strength nuts being screwed at the ends of the bolts.
8. The retrofitting device for steel stair of existing building structure according to claim 1, wherein Reinforcing rib plates are arranged between the second fixing plate and the connecting plate.
9. The retrofitting device for steel stair of existing building structure according to claim 1, wherein The width of the first support plate is smaller than that of the first fixing plate, and the width of the second support plate is smaller than that of the connecting plate.
10. The retrofitting device for steel stair of existing building structure according to claim 1, wherein The existing building steel structure stair reinforcing devices are uniformly arranged between the stair columns and the adjacent walls.