Fabricated stair and construction method thereof

Abstract

The invention relates to a building stair, and discloses an assembly type stair which comprises a prefabricated stair body and an energy dissipation and shock absorption assembly. Depending on the hysteresis energy dissipation characteristic of rubber, the first energy dissipation layer and the second energy dissipation layer which are made of rubber can increase the overall damping of the assembly type stair, so that the vibration amplitude of the assembly type stair under the action of earthquakes and wind vibration is effectively reduced, and then the horizontal displacement, interlayer displacement and interlayer shearing force of the stair are reduced; jumping displacement of the stair in an epicenter can be effectively reduced, and the prefabricated stair body is prevented from falling off from the stair beam; and the energy dissipation and shock absorption assembly is simple in structure, rigid materials and rubber needed for manufacturing the energy dissipation and shock absorption assembly are easy to find in the construction site, and the production and construction cost can be greatly reduced. The invention further discloses a construction method, the damping supports and the settlement monitoring supports are manufactured firstly, and then the stair beams are connected with the prefabricated stair body through the damping supports, so that the building stair is built for use.

Description

Technical Field

[0001] The invention relates to a building staircase, in particular to an assembled staircase and a construction method thereof. Background Art

[0002] Conventional staircase construction usually involves structural integration casting, so that the staircase and the ladder beam extending from the floor are connected as a whole. This construction method can make the connection between the staircase and the floor tighter and provide better load-bearing performance. However, when an earthquake occurs, the staircase is prone to resonate with the floor, and the shear force transmitted by the earthquake can easily cause damage to the staircase itself.

[0003] At present, assembled energy dissipation and shock absorption stairs are usually used to reduce the damage of building stairs in earthquake disasters, so as to improve and optimize the overall seismic performance of the building. Assembled energy dissipation and shock absorption stairs include prefabricated stairs and energy dissipation and shock absorption systems. On the one hand, the quality of prefabricated stairs can be stably controlled by producing prefabricated stairs in the factory, and they can be assembled on site by simply assembling them with the ladder beams, thereby saving construction time. On the other hand, the energy dissipation and shock absorption system is set between the prefabricated stairs and the ladder beams to reduce the connection between the prefabricated stairs and the floor slab, and when vibration occurs, the energy dissipation and shock absorption system causes the prefabricated stairs and the floor slab to slide relative to each other to reduce damage to the stairs.

[0004] However, due to the complex structure of the energy dissipation and shock absorption system, which usually includes viscoelastic damping components, friction damping components, metal damping components, viscous damping components, etc., the assembled energy dissipation and shock absorption stairs require a high level of corresponding technology in production and processing to ensure the final energy dissipation and shock absorption quality. In addition, when an earthquake occurs, the energy dissipation and shock absorption system reduces damage to the stairs by causing relative sliding between the prefabricated stairs and the floor slabs. However, at the same time, it causes the prefabricated stairs to jump relative to the main structure such as the floor slabs, causing the prefabricated stairs to fall off the ladder beams, making it impossible for users to escape through the stairs. Summary of the invention

[0005] The purpose of the present invention is to provide an assembled staircase and a construction method thereof, so as to solve the problem that the energy dissipation and shock absorption system in the existing assembled staircase is complex in structure and the prefabricated staircase is prone to jumping displacement with the main structure such as the floor slab, causing the prefabricated staircase to fall off the stair beam.

[0006] In order to achieve the above-mentioned object, the present invention provides an assembled staircase, which includes a prefabricated staircase body and an energy dissipation and shock absorption component;

[0007] The energy dissipation and shock absorption components are provided on the upper lower surface and the lower lower surface of the prefabricated staircase body; the length direction of the steps of the prefabricated staircase body is defined as the first direction;

[0008] The energy dissipation and shock absorption assembly includes a shock absorption support and a settlement monitoring support; in the first direction, the shock absorption supports are respectively arranged on both sides of the settlement monitoring support;

[0009] The shock-absorbing support comprises a first hard support layer, a first energy dissipation layer and a connecting pipe; the first hard support layer is fixedly connected to the upper and lower surfaces of the first energy dissipation layer respectively, and the connecting pipes are vertically fixedly arranged on the surfaces of two first hard support layers facing away from the first energy dissipation layer respectively; the connecting pipe located at the top is defined as the first connecting pipe, and the connecting pipe located at the bottom is defined as the second connecting pipe; the first connecting pipe is buried in the prefabricated staircase body;

[0010] The settlement monitoring support comprises a second hard support layer, a second energy dissipation layer, a base and a monitoring part; the second hard support layer, the second energy dissipation layer and the base are fixedly connected in sequence from top to bottom; the second hard support layer is connected to the prefabricated staircase body;

[0011] The base is provided with a slide groove, and the slide groove is extended along the first direction; the monitoring part is provided between the second hard support layer and the base, and the monitoring part is provided with a moving position, and the moving position is slidably connected in the slide groove;

[0012] Wherein, when the second hard support layer moves in the vertical direction relative to the base, the moving position can synchronously move in the slide groove along the first direction;

[0013] The first hard supporting layer, the second hard supporting layer, the base, the first connecting tube and the second connecting tube are made of rigid materials, and the first energy dissipation layer and the second energy dissipation layer are made of rubber.

[0014] Furthermore, the energy dissipation and shock absorption assembly further comprises a spring support, and the spring support is arranged on both sides of the shock absorption support in the first direction;

[0015] The spring support comprises two spring parts arranged in parallel with each other, and the spring part comprises a spring and a first connecting plate; the spring is arranged vertically, and the upper end and the lower end of the spring are respectively fixed with the first connecting plate; the first connecting plate located at the upper end is buried in the prefabricated staircase body;

[0016] The first connecting plate is made of a rigid material.

[0017] Further, the settlement monitoring support comprises two second energy dissipation layers, the two second energy dissipation layers are spaced apart and arranged in parallel along the first direction; the monitoring part is located between the two second energy dissipation layers;

[0018] The monitoring part includes a rotating block, a monitoring rod, a slider and a pointer;

[0019] The rotating block is fixedly arranged at the bottom of the second hard support layer, and two monitoring rods are hingedly connected to the rotating block. The two monitoring rods are arranged opposite to each other with the rotating block as the center, and the two monitoring rods are arranged at a certain angle;

[0020] One end of the monitoring rod away from the rotating block is connected with a sliding block, the shape of the sliding block corresponds to the sliding groove, and the sliding block is slidably connected in the sliding groove; the sliding block has the moving position.

[0021] Further, a direction on a horizontal plane perpendicular to the first direction is defined as a second direction;

[0022] A scale is engraved on a side surface of the base in the second direction, and the scale extends along the first direction and is arranged corresponding to the slide groove;

[0023] A pointer is provided on a side of the slider close to the scale, the pointer is extended along the second direction and at least partially located above the scale;

[0024] The pointer has the shift bit at one side in the first direction.

[0025] Furthermore, a second connecting plate is fixedly provided at the bottom end of the second connecting pipe, and the second connecting plate is arranged horizontally;

[0026] The second connecting plate is made of a rigid material.

[0027] Furthermore, the upper end of the prefabricated staircase body is provided with first connection holes having the same number as the shock-absorbing supports, and the first connection holes penetrate the upper and lower surfaces of the upper end of the prefabricated staircase body;

[0028] The lower end of the prefabricated staircase body is provided with second connection holes of the same number as the shock-absorbing supports, and the second connection holes penetrate the upper and lower surfaces of the lower end of the prefabricated staircase body;

[0029] The first connecting pipe is correspondingly buried in the upper end and the lower end of the prefabricated staircase body through the first connecting hole and the second connecting hole respectively.

[0030] Further, in the first direction, edges of the first hard support layer and the first energy dissipation layer are flush.

[0031] Further, the first connecting tube is fixedly connected to the upper surface of the first hard supporting layer located above, and in a vertical projection, the axis of the first connecting tube coincides with the center of the first hard supporting layer located above;

[0032] The second connecting tube is fixedly connected to the lower surface of the first hard supporting layer located therebelow, and in a vertical projection, the axis of the second connecting tube coincides with the center of the first hard supporting layer located therebelow.

[0033] The present invention also provides a construction method for constructing the above-mentioned assembled staircase, which comprises the following steps:

[0034] S1, bonding the two first hard support layers to the upper and lower surfaces of the first energy dissipation layer respectively, and then welding the first connecting tube and the second connecting tube to the upper surface of the upper first hard support layer and the lower surface of the lower first hard support layer respectively;

[0035] S2, bonding the second energy dissipation layer to the bottom of the second hard support layer, and bonding the second energy dissipation layer to the top of the base; then installing the monitoring part between the second hard support layer and the base, and making the moving part slidably connected to the slide groove of the base;

[0036] S3, pre-embedding the second connecting pipe and the base in the ladder beam;

[0037] S4, hoisting the prefabricated staircase body, and allowing the first connecting pipe to pass through the prefabricated staircase body, and then fixing the prefabricated staircase body to the first connecting pipe;

[0038] S5. Use filling material to fill the gap between the ladder beam and the prefabricated stair body.

[0039] Furthermore, before step S1, step S1-1 is also included;

[0040] Step S1-1, grinding the surfaces of the first hard support layer, the first energy dissipation layer, the second hard support layer and the second energy dissipation layer.

[0041] Compared with the prior art, the assembled staircase and the construction method thereof provided by the present invention have the following beneficial effects:

[0042] The present invention provides an assembled staircase, which comprises a prefabricated staircase body and an energy dissipation and shock absorption component. Relying on the hysteresis energy dissipation characteristics of rubber, a first energy dissipation layer and a second energy dissipation layer made of rubber can increase the damping of the assembled staircase as a whole, thereby effectively reducing the vibration amplitude of the assembled staircase under the action of earthquake and wind vibration, and then reducing the horizontal displacement, inter-layer displacement and inter-layer shear force of the stairs, which can effectively reduce the jumping displacement of the stairs in the epicenter and prevent the prefabricated staircase body from falling off the staircase beam. Then, through the first hard support layer, the first connecting pipe and the second connecting pipe arranged on the upper and lower sides of the first energy dissipation layer, the first energy dissipation layer can be effectively connected to the prefabricated staircase body and the staircase beam, so that the prefabricated staircase body and the staircase beam are connected to form a building staircase for normal up and down use. Compared with the existing energy dissipation and shock absorption system, the structure of the energy dissipation and shock absorption component is simple, and the rigid materials and rubber required for making the energy dissipation and shock absorption component are easy to find at the construction site, which can greatly reduce the production and construction costs.

[0043] In addition, since the energy dissipation and shock absorption capabilities of the first energy dissipation layer and the second energy dissipation layer are directly related to their own deformation energy consumption, and the rubber material will produce inelastic deformation under long-term pressure, the energy dissipation and shock absorption effect of the first energy dissipation layer and the second energy dissipation layer will decline, and the expected effect of energy dissipation and shock absorption cannot be achieved. Therefore, it is necessary to further judge whether it has complete energy dissipation and shock absorption functions based on the deformation amount of the energy dissipation and shock absorption assembly under the action of the dead weight of the stairs and the live load of pedestrians; the settlement monitoring support is provided with a monitoring part on the second hard support layer and the base to monitor the displacement value of the moving position in the slide groove after the second hard support layer moves in the vertical direction relative to the base under the action of the dead weight of the stairs and the live load of pedestrians, so as to obtain the deformation amount of the energy dissipation and shock absorption assembly; thereby, it is convenient to judge whether the energy dissipation and shock absorption assembly can have complete energy dissipation and shock absorption functions during construction, and then ensure the construction quality of the prefabricated stairs.

[0044] The present invention also provides a construction method, which comprises first separately manufacturing the shock-absorbing bearing and the settlement monitoring bearing, and then pre-embedding them in the ladder beam through a second connecting pipe and a base to realize fixed connection between the shock-absorbing bearing and the settlement monitoring bearing and the ladder beam; hoisting the prefabricated staircase body, and fixing the prefabricated staircase body with the first connecting pipe to realize fixed connection between the shock-absorbing bearing and the prefabricated staircase body, thereby fixing the prefabricated staircase body with the ladder beam to form a building staircase structure, and filling the gap between the ladder beam and the prefabricated staircase body with filling material to ensure that the building staircase is flat and can be used by pedestrians going up and down the stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic cross-sectional view of a connection structure of an assembled staircase and a stair beam according to an embodiment of the present invention;

[0046] Figure 2It is a structural schematic diagram of a shock-absorbing support in an assembled staircase according to an embodiment of the present invention;

[0047] Figure 3 is a structural schematic diagram of a settlement monitoring support in an assembled staircase according to an embodiment of the present invention;

[0048] Figure 4 yes Figure 1 A magnified schematic diagram of the middle A area;

[0049] Figure 5 is a cross-sectional schematic diagram of a connection structure of an assembled staircase and a stair beam according to an embodiment of the present invention;

[0050] Figure 6 It is a flow chart of a construction method according to an embodiment of the present invention.

[0051] In the figure, 100, assembled staircase; 200, ladder beam; 1, prefabricated staircase body; 11, first connecting hole; 12, second connection; 2, energy dissipation and shock absorption assembly; 21, shock absorption bearing; 211, first hard support layer; 212, first energy dissipation layer; 213, first connecting pipe; 214, second connecting pipe; 215, second connecting plate; 22, settlement monitoring bearing; 221, second hard support layer; 222, second energy dissipation layer; 223, base; 2230, slide; 224, monitoring part; 2241, rotating block; 2242, monitoring rod; 23, spring bearing; 231, spring part; 2311, spring; 2312, first connecting plate. DETAILED DESCRIPTION

[0052] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] like Figure 1 to Figure 5 As shown, an assembled staircase 100 according to an embodiment of the present invention comprises a prefabricated staircase body 1 and an energy dissipation and shock absorption assembly 2; the energy dissipation and shock absorption assembly 2 is provided on both the upper lower surface and the lower lower surface of the prefabricated staircase body 1; the length direction of the steps of the prefabricated staircase body 1 is defined as a first direction X;

[0054] The energy dissipation and shock absorption assembly 2 comprises a shock absorption support 21 and a settlement monitoring support 22; in the first direction X, the shock absorption supports 21 are respectively provided on both sides of the settlement monitoring support 22;

[0055] The shock-absorbing support 21 includes a first hard support layer 211, a first energy dissipation layer 212 and a connecting pipe; the first hard support layer 211 is fixedly connected to the upper and lower surfaces of the first energy dissipation layer 212 respectively, and the connecting pipes are vertically fixedly provided on the surfaces of the two first hard support layers 211 facing away from the first energy dissipation layer 212 respectively; the connecting pipe located at the top is defined as the first connecting pipe 213, and the connecting pipe located at the bottom is defined as the second connecting pipe 214; the first connecting pipe 213 is buried in the prefabricated staircase body;

[0056] The settlement monitoring support 22 includes a second hard support layer 221, a second energy dissipation layer 222, a base 223 and a monitoring unit 224; the second hard support layer 221, the second energy dissipation layer 222 and the base 223 are fixedly connected in sequence from top to bottom; the second hard support layer 221 is connected to the prefabricated staircase body 1;

[0057] The base 223 is provided with a slide groove 2230, and the slide groove 2230 is extended along the first direction X; the monitoring part 224 is provided between the second hard support layer 221 and the base 223, and the monitoring part 224 is provided with a moving position, and the moving position is slidably connected to the slide groove 2230;

[0058] When the second hard support layer 221 moves in the vertical direction relative to the base 223, the moving position can move synchronously in the slide groove 2230 along the first direction X;

[0059] The first hard support layer 211, the second hard support layer 221, the base 223, the first connecting tube 213 and the second connecting tube 214 are made of rigid materials, and the first energy dissipation layer 212 and the second energy dissipation layer 222 are made of rubber.

[0060] Based on the above technical solution, relying on the hysteresis energy dissipation characteristics of rubber, the first energy dissipation layer 212 and the second energy dissipation layer 222 made of rubber can increase the damping of the assembled staircase 100 as a whole, thereby effectively reducing the vibration amplitude of the assembled staircase 100 under earthquake and wind vibration, and then reducing the horizontal displacement, inter-layer displacement and inter-layer shear force of the stairs, which can effectively reduce the jumping displacement of the stairs at the epicenter and prevent the prefabricated staircase body 1 from falling off the ladder beam; and then through the first hard support layer 211, the first connecting pipe 213 and the second connecting pipe 214 arranged on the upper and lower sides of the first energy dissipation layer 212, the first energy dissipation layer 212 can be effectively connected to the prefabricated staircase body 1 and the ladder beam, so that the prefabricated staircase body 1 and the ladder beam are connected to form a building staircase for normal up and down use; and compared with the existing energy dissipation and shock absorption system, the structure of the energy dissipation and shock absorption component 2 is simple, and the rigid materials and rubber required for making the energy dissipation and shock absorption component 2 are easy to find at the construction site, which can greatly reduce the production and construction costs.

[0061] In addition, since the energy dissipation and shock absorption capabilities of the first energy dissipation layer 212 and the second energy dissipation layer 222 are directly related to their own deformation energy consumption, and the rubber material will produce inelastic deformation under long-term pressure, the energy dissipation and shock absorption effect of the first energy dissipation layer 212 and the second energy dissipation layer 222 will decline, and the expected effect of energy dissipation and shock absorption cannot be achieved. Therefore, it is necessary to further judge whether the energy dissipation and shock absorption component 2 has complete energy dissipation and shock absorption functions based on the deformation amount of the energy dissipation and shock absorption component 2 under the action of the dead weight of the stairs and the live load of pedestrians; the settlement monitoring support 22 is provided with a monitoring part 224 on the second hard support layer 221 and the base 223 to monitor the displacement value of the moving position in the slide groove 2230 after the second hard support layer 221 moves in the vertical direction relative to the base 223 under the action of the dead weight of the stairs and the live load of pedestrians, so as to obtain the deformation amount of the energy dissipation and shock absorption component 2; thereby facilitating the judgment of whether the energy dissipation and shock absorption component 2 has complete energy dissipation and shock absorption functions during construction, thereby ensuring the construction quality of the assembled staircase 100.

[0062] Preferably, in this embodiment, the first hard support layer 211, the second hard support layer 221, and the base 223 are made of steel plates, and the first connecting pipe 213 and the second connecting pipe 214 are made of steel pipes. There are usually more steel plates and steel pipes at the construction site, which is convenient for on-site material collection and processing to reduce production and transportation costs.

[0063] Preferably, if Figure 1 As shown, the settlement monitoring support 22 is centrally connected to the lower surface of the prefabricated staircase body 1 so that the deadweight of the staircase and the live load of pedestrians can act evenly on the settlement monitoring support 22 .

[0064] Preferably, if Figure 1 As shown, the two shock-absorbing supports 21 are symmetrically arranged with the settlement monitoring support 22 as the center to balance the loads of the two shock-absorbing supports 21 .

[0065] Furthermore, if Figure 1 and Figure 4 As shown, in order to further enhance the shock absorption capacity and play an anchoring and binding role to prevent the stairs from jumping and falling off under the action of an earthquake; the energy dissipation and shock absorption assembly 2 also includes a spring support 23, and the spring support 23 is arranged on both sides of the shock absorption support 21 in the first direction X; the spring 23 support includes two spring parts 231 arranged in parallel at an interval, and the spring part 231 includes a spring 2311 and a first connecting plate 2312; the spring 2311 is vertically arranged, and the upper and lower ends of the spring 2311 are respectively fixed with the first connecting plates 2312; the first connecting plate 2312 located above is buried in the prefabricated staircase body 1; the first connecting plate 2312 is made of a rigid material.

[0066] Furthermore, if Figure 1 and Figure 3 As shown, in order to facilitate the setting of the monitoring part 224 between the second hard support layer 221 and the base 223, the settlement monitoring support 22 includes two second energy dissipation layers 222, and the two second energy dissipation layers 222 are spaced and arranged in parallel along the first direction X; the monitoring part 224 is located between the two second energy dissipation layers 222.

[0067] The monitoring part 224 includes a rotating block 2241, a monitoring rod 2242, a slider (not shown in the figure) and a pointer (not shown in the figure); the rotating block 2241 is fixed at the bottom of the second hard support layer 221, and two monitoring rods 2242 are hinged on the rotating block 2241. The two monitoring rods 2242 are relatively arranged with the rotating block 2241 as the center, and the two monitoring rods 2242 are arranged at a certain angle; the end of the monitoring rod 2242 away from the rotating block 2241 is connected to a slider, the shape of the slider corresponds to the slide groove 2230, and the slider is slidably connected to the slide groove 2230; the slider has the moving position. Through the rotating block 2241 and the monitoring rod 2242, when the second hard support layer 221 moves in the vertical direction relative to the base 223, the monitoring rod 2242 hinged to the rotating block 2241 rotates and drives the slider to move in the slide slot, so as to drive the moving position to move, thereby judging the deformation of the energy dissipation and shock absorption assembly 2 through the displacement value of the moving position. In addition, by providing two monitoring rods 2242, the structure of the monitoring part 224 is more stable.

[0068] Furthermore, if Figure 1 and Figure 3 As shown, in order to directly read the displacement value of the moving position, the direction perpendicular to the first direction X on the horizontal plane is defined as the second direction Y; a scale (not shown in the figure) is engraved on one side of the base 223 in the second direction Y, and the scale extends along the first direction and is arranged corresponding to the slide groove 2230; a pointer (not shown in the figure) is arranged on the side of the slider close to the scale, and the pointer extends along the second direction Y and is at least partially located above the scale; the pointer has the moving position on one side in the first direction X. Through the cooperation of the pointer and the scale, the position corresponding to the moving position before and after the deadweight of the stairs and the live load of pedestrians can be directly read, and then the displacement value of the moving position can be obtained.

[0069] Furthermore, if Figure 1 , Figure 2 and Figure 5As shown, a second connecting plate 215 is fixedly disposed at the bottom end of the second connecting pipe 214, and the second connecting plate 215 is horizontally arranged; the second connecting plate 215 is made of a rigid material. The second connecting plate 215 connects the second connecting pipe 214 and is buried in the ladder beam. The second connecting plate 215 can ensure the horizontality of the installation of the shock-absorbing support 21 and increase the pull-out resistance of the second connecting pipe 214 buried in the ladder beam.

[0070] Furthermore, if Figure 1 and Figure 5 As shown, the upper end of the prefabricated staircase body 1 is provided with the same number of first connection holes 11 as the shock-absorbing support 21, and the first connection holes 11 penetrate the upper and lower surfaces of the upper end of the prefabricated staircase body 1; the lower end of the prefabricated staircase body 1 is provided with the same number of second connection holes 12 as the shock-absorbing support 21, and the second connection holes 12 penetrate the upper and lower surfaces of the lower end of the prefabricated staircase body 1; the first connection pipe 213 is respectively buried in the upper and lower ends of the prefabricated staircase body 1 through the first connection hole 11 and the second connection hole 12. When the shock-absorbing support 21 is damaged or the energy dissipation and shock-absorbing function is incomplete and cannot be performed, the first connection pipe 213 can be taken out from the corresponding first connection hole 11 or second connection hole 12 to separate the shock-absorbing support 21 from the prefabricated staircase body 1, and the shock-absorbing support 21 can be replaced.

[0071] Furthermore, if Figure 1 and Figure 2 As shown, in the first direction X, the edges of the first hard support layer 211 and the first energy dissipation layer 212 are flush; so that the first hard support layer 211 and the first energy dissipation layer 212 can evenly distribute the load when subjected to force, avoiding local stress concentration, thereby improving the overall stability and durability of the shock-absorbing bearing 21.

[0072] Similarly, if Figure 5 As shown, in the second direction Y, the edges of the first hard support layer 211 and the first energy dissipation layer 212 are flush.

[0073] Furthermore, if Figure 1 and Figure 5As shown, the first connecting pipe 213 is fixedly connected to the upper surface of the first hard support layer 211 located above, and the axis of the first connecting pipe 213 coincides with the center of the first hard support layer 211 located above in the vertical projection; the second connecting pipe 214 is fixedly connected to the lower surface of the first hard support layer 211 located below, and the axis of the second connecting pipe 214 coincides with the center of the first hard support layer 211 located below in the vertical projection. In order to enhance the overall stability between the first hard support layer 211 and the first connecting pipe 213 or the second connecting pipe 214, the shock-absorbing support 21 can maintain better integrity and reduce local damage when subjected to external forces such as earthquakes or wind vibrations.

[0074] like Figure 6 As shown, the present invention also provides a construction method for constructing the above-mentioned assembled staircase 100, comprising the following steps:

[0075] S1. Adhere the two first hard support layers 211 to the upper and lower surfaces of the first energy dissipation layer 212 respectively, and then weld the first connecting tube 213 and the second connecting tube 214 to the upper surface of the upper first hard support layer 211 and the lower surface of the lower first hard support layer 211 respectively;

[0076] S2, bonding the second energy dissipation layer 222 to the bottom of the second hard support layer 221, and bonding the second energy dissipation layer 222 to the top of the base 223; then installing the monitoring unit 224 between the second hard support layer 221 and the base 223, and making the moving part slidably connected to the slide groove 2230 of the base 223;

[0077] S3, pre-embedding the second connecting pipe 214 and the base 223 in the ladder beam;

[0078] S4, hoisting the prefabricated staircase body 1, and allowing the first connecting pipe 213 to pass through the prefabricated staircase body 1, and then fixing the prefabricated staircase body 1 and the first connecting pipe 213;

[0079] S5. Fill the gap between the ladder beam 200 and the prefabricated staircase body 1 with filling material.

[0080] Based on the above technical scheme, the shock-absorbing bearing 21 and the settlement monitoring bearing 22 are first manufactured separately, and then embedded in the ladder beam 200 through the second connecting pipe 214 and the base 223 to realize the fixed connection between the shock-absorbing bearing 21 and the settlement monitoring bearing 22 and the ladder beam 200; the prefabricated staircase body 1 is hoisted, and the prefabricated staircase body 1 is fixedly connected to the first connecting pipe 213 to realize the fixed connection between the shock-absorbing bearing 21 and the prefabricated staircase body 1, so that the prefabricated staircase body 1 is fixedly connected to the ladder beam 200 to form a building staircase structure, and the gap between the ladder beam 200 and the prefabricated staircase body 1 is filled with filling material to ensure that the building staircase is flat and can be used by pedestrians going up and down the stairs.

[0081] Furthermore, before step S1, step S1-1 is also included;

[0082] Step S1-1, grinding the surfaces of the first hard support layer 211, the first energy dissipation layer 212, the second hard support layer 221, and the second energy dissipation layer 222. The grinding process can increase the surface roughness of the first hard support layer 211, the first energy dissipation layer 212, the second hard support layer 221, and the second energy dissipation layer 222, so as to increase the bonding contact area and thus ensure the bonding effect.

[0083] Preferably, step S1-2 is further included between step S1-1 and S1;

[0084] Step S1-2, cleaning the oil stains and rust on the surface of the first hard support layer 211 and the second hard support layer 221; and then brushing metal anti-rust paint on the surface of the first hard support layer 211 and the second hard support layer 221. Clean the oil stains and rust on the surface to prevent it from affecting the bonding effect; brushing metal anti-rust paint to protect the first hard support layer 211 and the second hard support layer 221, prevent secondary pollution or metal rust from affecting the service life of the energy dissipation and shock absorption component 2.

[0085] Preferably, step S1 specifically includes:

[0086] Apply glue on the bonding surface of the first hard support layer 211 and the first energy dissipation layer 212, and after the glue is dry, apply glue again to bond the two first hard support layers 211 to the upper and lower surfaces of the first energy dissipation layer 212 respectively, and use a rubber hammer to beat the first hard support layer 211;

[0087] Then, the first connecting tube 213 and the second connecting tube 214 are fully welded to the upper surface of the upper first hard supporting layer 211 and the lower surface of the lower first hard supporting layer 211 respectively at four corresponding sides.

[0088] Apply glue twice to ensure uniformity and wettability of glue, and use rubber hammer to hammer to make the bonding firm. Full welding on all four sides ensures a firm connection between steel pipe and steel plate.

[0089] Similarly, step S2 specifically includes:

[0090] Glue is applied on the bonding surfaces of the second hard support layer 221, the second energy dissipation layer 222 and the base 223. After the glue is dry, glue is applied again to bond the second energy dissipation layer 222 to the bottom of the second hard support layer 221, and to bond the second energy dissipation layer 222 to the top of the base 223; the monitoring unit 224 is then installed between the second hard support layer 221 and the base 223, and the movable part is slidably connected to the slide groove 2230 of the base 223.

[0091] Preferably, step S3 specifically includes:

[0092] S3-1, pre-embed the second connecting pipe 214 and the base 223 in the ladder beam 200;

[0093] S3-2, pre-embed the first connecting plate 2312 in the spring support 23 in the ladder beam 200 to complete the connection between the energy dissipation and shock absorption assembly 2 and the ladder beam 200.

[0094] Preferably, step S4 specifically includes:

[0095] S4-1, hoisting the prefabricated staircase body 1, and making the first connecting pipe 213 pass through the first connecting hole 11 and the second connecting hole 12 of the prefabricated staircase body 1 correspondingly;

[0096] S4-2, pouring grouting material into the first connection hole 11 and the second connection hole 12 to block the first connection hole 11 and the second connection hole 12, so as to fix the prefabricated staircase body 1 and the first connection pipe 213 together.

[0097] Preferably, step S5 specifically includes:

[0098] S5-1, using polystyrene foam and PE rod to fill the gap between the ladder beam 200 and the prefabricated staircase body 1 in sequence;

[0099] S5-2. Continue to fill the mortar on the upper surface of the PE rod and smooth it.

[0100] So that the connection position between the ladder beam 200 and the prefabricated staircase body 1 is flat, dense and smooth, so as to improve the construction quality.

[0101] In summary, the embodiment of the present invention provides an assembled staircase 100, which includes a prefabricated staircase body 1 and an energy dissipation and shock absorption component 2; relying on the hysteresis energy dissipation characteristics of rubber, the first energy dissipation layer 212 and the second energy dissipation layer 222 made of rubber can increase the damping of the assembled staircase 100 as a whole, thereby effectively reducing the vibration amplitude of the assembled staircase 100 under earthquake and wind vibration, and then reducing the horizontal displacement, inter-layer displacement and inter-layer shear force of the stairs, which can effectively reduce the jumping displacement of the stairs in the epicenter, and avoid the prefabricated staircase body 1 Falling off from the ladder beam; then through the first hard supporting layer 211, the first connecting pipe 213 and the second connecting pipe 214 arranged on the upper and lower sides of the first energy dissipation layer 212, the first energy dissipation layer 212 can be effectively connected to the prefabricated staircase body 1 and the ladder beam, so that the prefabricated staircase body 1 and the ladder beam are connected to form a building staircase for normal up and down use; and compared with the existing energy dissipation and shock absorption system, the structure of the energy dissipation and shock absorption component 2 is simple, and the rigid materials and rubber required for making the energy dissipation and shock absorption component 2 are easy to find at the construction site, which can greatly reduce the production and construction costs.

[0102] In addition, since the energy dissipation and shock absorption capabilities of the first energy dissipation layer 212 and the second energy dissipation layer 222 are directly related to their own deformation energy consumption, and the rubber material will produce inelastic deformation under long-term pressure, the energy dissipation and shock absorption effect of the first energy dissipation layer 212 and the second energy dissipation layer 222 will decline, and the expected effect of energy dissipation and shock absorption cannot be achieved. Therefore, it is necessary to further judge whether the energy dissipation and shock absorption component 2 has complete energy dissipation and shock absorption functions based on the deformation amount of the energy dissipation and shock absorption component 2 under the action of the dead weight of the stairs and the live load of pedestrians; the settlement monitoring support 22 is provided with a monitoring part 224 on the second hard support layer 221 and the base 223 to monitor the displacement value of the moving position in the slide groove 2230 after the second hard support layer 221 moves in the vertical direction relative to the base 223 under the action of the dead weight of the stairs and the live load of pedestrians, so as to obtain the deformation amount of the energy dissipation and shock absorption component 2; thereby facilitating the judgment of whether the energy dissipation and shock absorption component 2 has complete energy dissipation and shock absorption functions during construction, thereby ensuring the construction quality of the assembled staircase 100.

[0103] The present invention also provides a construction method, firstly separately manufacture the shock-absorbing bearing 21 and the settlement monitoring bearing 22, and then pre-embed them in the ladder beam 200 through the second connecting pipe 214 and the base 223 to realize the fixed connection between the shock-absorbing bearing 21 and the settlement monitoring bearing 22 and the ladder beam 200; hoist the prefabricated staircase body 1, and fix the prefabricated staircase body 1 with the first connecting pipe 213 to realize the fixed connection between the shock-absorbing bearing 21 and the prefabricated staircase body 1, thereby fixing the prefabricated staircase body 1 with the ladder beam 200 to form a building staircase structure, and fill the gap between the ladder beam 200 and the prefabricated staircase body 1 with filling material to ensure that the building staircase is flat and can be used for pedestrians to go up and down the stairs.

[0104] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An assembled staircase, characterized in that: It includes a prefabricated staircase body and energy dissipation and shock absorption components; The energy dissipation and shock absorption components are provided on the upper lower surface and the lower lower surface of the prefabricated staircase body; the length direction of the steps of the prefabricated staircase body is defined as the first direction; The energy dissipation and shock absorption assembly includes a shock absorption support and a settlement monitoring support; in the first direction, the shock absorption supports are respectively arranged on both sides of the settlement monitoring support; The shock-absorbing support comprises a first hard support layer, a first energy dissipation layer and a connecting pipe; the first hard support layer is fixedly connected to the upper and lower surfaces of the first energy dissipation layer respectively, and the connecting pipes are vertically fixedly arranged on the surfaces of two first hard support layers facing away from the first energy dissipation layer respectively; the connecting pipe located at the top is defined as the first connecting pipe, and the connecting pipe located at the bottom is defined as the second connecting pipe; the first connecting pipe is buried in the prefabricated staircase body; The settlement monitoring support comprises a second hard support layer, a second energy dissipation layer, a base and a monitoring part; the second hard support layer, the second energy dissipation layer and the base are fixedly connected in sequence from top to bottom; the second hard support layer is connected to the prefabricated staircase body; The base is provided with a slide groove, and the slide groove is extended along the first direction; the monitoring part is provided between the second hard support layer and the base, and the monitoring part is provided with a moving position, and the moving position is slidably connected in the slide groove; Wherein, when the second hard support layer moves in the vertical direction relative to the base, the moving position can synchronously move in the slide groove along the first direction; The first hard supporting layer, the second hard supporting layer, the base, the first connecting tube and the second connecting tube are made of rigid materials, and the first energy dissipation layer and the second energy dissipation layer are made of rubber.

2. The assembled staircase according to claim 1, characterized in that: The energy dissipation and shock absorption assembly further comprises a spring support, wherein the spring support is arranged on both sides of the shock absorption support in the first direction; The spring support comprises two spring parts arranged in parallel with each other, and the spring part comprises a spring and a first connecting plate; the spring is arranged vertically, and the upper end and the lower end of the spring are respectively fixed with the first connecting plate; the first connecting plate located at the upper end is buried in the prefabricated staircase body; The first connecting plate is made of a rigid material.

3. The assembled staircase according to claim 1, characterized in that: The settlement monitoring support comprises two second energy dissipation layers, which are spaced apart and arranged in parallel along a first direction; the monitoring part is located between the two second energy dissipation layers; The monitoring part includes a rotating block, a monitoring rod, a slider and a pointer; The rotating block is fixedly arranged at the bottom of the second hard support layer, and two monitoring rods are hingedly connected to the rotating block. The two monitoring rods are arranged opposite to each other with the rotating block as the center, and the two monitoring rods are arranged at a certain angle; One end of the monitoring rod away from the rotating block is connected with a sliding block, the shape of the sliding block corresponds to the sliding groove, and the sliding block is slidably connected in the sliding groove; the sliding block has the moving position.

4. The assembled staircase according to claim 3, characterized in that: defining a direction on a horizontal plane perpendicular to the first direction as a second direction; A scale is engraved on a side surface of the base in the second direction, and the scale extends along the first direction and is arranged corresponding to the slide groove; A pointer is provided on a side of the slider close to the scale, the pointer is extended along the second direction and at least partially located above the scale; The pointer has the shift bit at one side in the first direction.

5. The assembled staircase according to claim 1, characterized in that: A second connecting plate is fixedly disposed at the bottom end of the second connecting pipe, and the second connecting plate is arranged horizontally; The second connecting plate is made of a rigid material.

6. The assembled staircase according to claim 1, characterized in that: The upper end of the prefabricated staircase body is provided with first connection holes of the same number as the shock-absorbing supports, and the first connection holes penetrate the upper and lower surfaces of the upper end of the prefabricated staircase body; The lower end of the prefabricated staircase body is provided with second connection holes of the same number as the shock-absorbing supports, and the second connection holes penetrate the upper and lower surfaces of the lower end of the prefabricated staircase body; The first connecting pipe is correspondingly buried in the upper end and the lower end of the prefabricated staircase body through the first connecting hole and the second connecting hole respectively.

7. The assembled staircase according to claim 1, characterized in that: In the first direction, the edges of the first hard support layer and the first energy dissipation layer are flush.

8. The assembled staircase according to claim 1, characterized in that: The first connecting tube is fixedly connected to the upper surface of the first hard supporting layer located above, and in a vertical projection, the axis of the first connecting tube coincides with the center of the first hard supporting layer located above; The second connecting tube is fixedly connected to the lower surface of the first hard supporting layer located therebelow, and in a vertical projection, the axis of the second connecting tube coincides with the center of the first hard supporting layer located therebelow.

9. A construction method for constructing the assembled staircase according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, bonding the two first hard support layers to the upper and lower surfaces of the first energy dissipation layer respectively, and then welding the first connecting tube and the second connecting tube to the upper surface of the upper first hard support layer and the lower surface of the lower first hard support layer respectively; S2, bonding the second energy dissipation layer to the bottom of the second hard support layer, and bonding the second energy dissipation layer to the top of the base; then installing the monitoring part between the second hard support layer and the base, and making the moving part slidably connected to the slide groove of the base; S3, pre-embedding the second connecting pipe and the base in the ladder beam; S4, hoisting the prefabricated staircase body, and allowing the first connecting pipe to pass through the prefabricated staircase body, and then fixing the prefabricated staircase body to the first connecting pipe; S5. Use filling material to fill the gap between the ladder beam and the prefabricated stair body.

10. The construction method according to claim 9, characterized in that: Before step S1, step S1-1 is also included; Step S1-1, grinding the surfaces of the first hard support layer, the first energy dissipation layer, the second hard support layer and the second energy dissipation layer.

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