A box-type house structure system with friction damper and its construction method

Abstract

A box-type housing structure system with friction dampers and its construction method are disclosed, comprising at least three box-type structures. Each box-type structure includes a bottom beam, a top beam, wall panels, and a friction damping structure. The friction damping structure is installed in the vertical gap between adjacent box-type structures in each layer. A gap is left between the upper end of the friction damping structure and the top beam, and the lower end of the friction damping structure extends into the vertical gap between the next adjacent box-type structure. The friction damping structure includes a friction damper and a through-connecting plate. The friction damper includes an upper damping plate, a lower damping plate, and a first high-strength bolt. The upper damping plate has an upper notch spaced at intervals on its upper surface. The lower damping plate is located at the lower part of the vertical gap and overlaps with the upper damping plate. The lower damping plate has a lower notch spaced at intervals on its lower surface. The through-connecting plate is installed in the vertical gap at the connection between two adjacent box-type structures and is located at the bottom of the corresponding layer's friction damper. This invention solves the technical problems of poor seismic performance of traditional box-type housing structures, failure to fully utilize material efficiency, and high cost.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a box-type house structure system with friction damper and its construction method. Background Technology

[0002] Modular steel structure buildings have been widely used in recent years due to their rapid construction advantages. However, current common modular steel structure buildings have height restrictions, limited to a maximum of three stories in a stacked container structure, and lack basements. The containers are connected using U-shaped snap-fit ​​connections, which do not take seismic forces into account. The durability design of the container coatings and other aspects is mostly around 5 years, so the current main use of these containers is for temporary construction.

[0003] How to broaden the application scope of modular steel structure buildings, give full play to their outstanding advantage of rapid construction, and make them suitable for high-rise buildings in high-intensity seismic zones is still being explored across the country in recent years.

[0004] To maintain the greatest advantage of modular steel structure buildings—rapid construction—while addressing the challenges of applying modular steel structures in high-rise buildings in high-seismic zones, two key issues need to be resolved: First, the selection of the seismic resistance system, including the choice of node connection methods, must ensure both rapid construction and installation while meeting seismic fortification requirements; second, economic considerations. In stacked box girder structures, the intermediate box girder is placed on top of the beams, and the columns are placed next to each other. The four beams and eight columns do not fully utilize their combined function, especially in high-rise buildings, where materials are not used efficiently, resulting in higher costs. Summary of the Invention

[0005] The purpose of this invention is to provide a box-type house structure system with friction dampers and its construction method, in order to solve the technical problems of poor seismic performance of traditional box-type house structures, failure to fully utilize the efficiency of their materials, and high cost.

[0006] To achieve the above objectives, the present invention adopts the following technical solution.

[0007] A box-type housing structure system with friction dampers includes at least three layers of boxes, each layer of boxes being spliced ​​together; each box includes a bottom beam, a top beam, and wall panels; the wall panels are detachably connected between the bottom beam and the top beam; it also includes a friction damping structure; the friction damping structure is disposed in the vertical gap between adjacent boxes in each layer, with a gap between the upper end of the friction damping structure and the top beam, and the lower end of the friction damping structure extending into the vertical gap between the next adjacent box in the next layer; the friction damping structure includes a friction damper and a through connecting plate; the friction damper... The device is plate-shaped and extends along the vertical gap. The friction damper includes an upper damping plate, a lower damping plate, and a first high-strength bolt. The upper damping plate is located at the top of the vertical gap. Upper notches are spaced horizontally at intervals on the upper surface of the upper damping plate (2.1), and first vertical strip holes are spaced horizontally at intervals on the lower surface of the upper damping plate. A first upper longitudinal strip is connected to the top of the upper damping plate, and the first upper longitudinal strip is connected to the friction damper between the upper layer of the housing. The lower damping plate is located at the bottom of the vertical gap, and the lower damping plate is connected to the upper… The damping plates overlap; a second vertical hole is provided on the upper part of the lower damping plate, corresponding to the position of the first vertical hole; lower notches are provided at intervals along the horizontal direction on the lower part of the lower damping plate; the bottom of the lower damping plate is connected to a first lower longitudinal strip plate; the first high-strength bolt is inserted through the first and second vertical holes respectively to connect the upper and lower damping plates; the through-connecting plate is set in the vertical gap at the connection between two adjacent layers of the box, and is located at the bottom of the friction damper of the corresponding layer; the upper part of the through-connecting plate is inserted into the corresponding The bottom beams of two adjacent boxes in the lower layer are connected by a second high-strength bolt, and the connecting plate is connected to the bottom beam by a third high-strength bolt. The top of the connecting plate is provided with a second upper longitudinal strip, which is connected to the first lower longitudinal strip by a fourth high-strength bolt. The bottom of the connecting plate is provided with a second lower longitudinal strip, which is used to connect to the friction damper between the boxes in the lower layer.

[0008] Preferably, both the bottom beam and the top beam are made of channel steel, and the slots of the bottom beam and the top beam face the inner side of the corresponding box body; the cross-sectional height of the top beam is greater than the cross-sectional height of the bottom beam, and the cross-sectional width of the top beam is greater than the cross-sectional width of the bottom beam.

[0009] Preferably, both the upper damping plate and the lower damping plate are made of thin steel plates coated with thermally sprayed aluminum, and the thicknesses of the upper damping plate and the lower damping plate are 4mm to 8mm, respectively.

[0010] Preferably, the upper notch is V-shaped, and the distance between the upper ends of adjacent upper notches is 400mm to 500mm; the lower notch is an inverted V-shape, and the distance between the lower ends of adjacent lower notches is 400mm to 500mm.

[0011] Preferably, the through connecting plate is made of 20mm thick steel plate, and the upper end of the through connecting plate extends 250mm beyond the top surface of the middle layer bottom beam; the lower end of the through connecting plate extends 250mm beyond the bottom surface of the lower layer top beam.

[0012] Preferably, the first upper longitudinal strip plate has first horizontal strip holes spaced apart along vertical gaps on both sides of the upper damping plate; the first lower longitudinal strip plate has second horizontal strip holes spaced apart along vertical gaps on both sides of the lower damping plate; the second upper longitudinal strip plate has third horizontal strip holes spaced apart along vertical gaps on both sides of the through connecting plate; the second lower longitudinal strip plate has fourth horizontal strip holes spaced apart along vertical gaps on both sides of the through connecting plate; the first upper longitudinal strip plate is connected to the second lower longitudinal strip plate at the bottom of the through connecting plate above by fifth high-strength bolts passing through the first and fourth horizontal strip holes; the first lower longitudinal strip plate is connected to the second upper longitudinal strip plate at the top of the through connecting plate by fourth high-strength bolts passing through the second and third horizontal strip holes.

[0013] Preferably, friction pads are respectively provided between the first high-strength bolt and the upper damping plate and the lower damping plate.

[0014] The construction method for this box-type house structure system with friction dampers includes the following steps.

[0015] Step 1: Fabricate the friction damper.

[0016] Step 2: Install the through-connecting plate on the first floor and connect the lower end of the through-connecting plate on the first floor to the main structure at the bottom.

[0017] Step 3: Hoist the first-floor box and connect it to the main structure at the bottom. Before installing the first-floor box, remove the wall panel on the side of the first-floor box closest to the friction damper to facilitate the installation of the friction damper.

[0018] Step 4, Install the friction damper on the first floor: Connect the lower end of the friction damper on the first floor to the through-connecting plate on the first floor.

[0019] Step 5, hoisting the second-floor enclosure: connect the second-floor enclosure to the first-floor enclosure; before installing the second-floor enclosure, remove the wall panel on the side of the second-floor enclosure closest to the designed friction damper.

[0020] Step 6, Install the second-layer through-connecting plate: Connect the lower end of the second-layer through-connecting plate to the upper end of the first-layer friction damper.

[0021] Step 7, Install the friction damper of the second layer: Connect the lower end of the friction damper of the second layer to the through connecting plate of the second layer.

[0022] Step 8: Repeat steps 5 through 7.

[0023] Step 9: Hoist the top-level housing. Before installing the top-level housing, remove the wall panel on the side of the top-level housing closest to the designed friction damper.

[0024] Step 10, Install the top-level through-connecting plate: Connect the lower end of the top-level through-connecting plate to the upper end of the next-upper-level friction damper.

[0025] Step 11, Install the uppermost friction damper: Connect the lower end of the uppermost friction damper to the uppermost through-connecting plate, and make the upper end of the uppermost friction damper flush with the top of the uppermost box.

[0026] Step 12: Install the removed wall panels. Construction is now complete.

[0027] Compared with the prior art, the present invention has the following features and beneficial effects.

[0028] 1. In the container house structural system of this invention, the container itself also participates in earthquake resistance, and the design requires it to resist 40% of the total horizontal seismic force. The container house structural system of this invention incorporates a friction damping structure within the joints between adjacent containers. This not only provides stiffness to the container, enabling it to meet regulatory requirements in high-rise buildings, but also gives the container house structural system excellent seismic energy dissipation capabilities. This friction damping structure consists of a set of steel plates to ensure symmetrical friction. The upper and lower damping plates are made of steel plates coated with thermally sprayed aluminum. This method allows the energy input to the structure under seismic action to be dissipated through the friction damper, causing almost no damage to other steel components of the container. Simultaneously, notches are created on the upper and lower sides of the steel plates connecting the dampers, ensuring complete weld failure under rare earthquake conditions, ultimately protecting the main container house structure from damage.

[0029] 2. This invention optimizes the box girder from square steel tubes to channel steel. The channel steel beams of the two side boxes and the upper and lower box boxes can be connected as a whole by through connecting plates and high-strength bolts, thereby achieving the effect of four beams sharing the load, effectively improving the beam stiffness and enhancing the overall structure. In addition, channel steel beams can save nearly 50% of steel compared to square steel tube beams. Furthermore, the through connecting plates extend into the side walls of the box girder and can be conveniently and quickly connected to the dampers using high-strength bolts.

[0030] 3. The modular housing structure of this invention is easy to install. After the lower-level units are installed, a 20mm thick through-connecting plate is inserted into the vertical gaps of the lower-level units, and then they are quickly connected as a whole using high-strength bolts. Then, the friction damper is quickly connected to the through-connecting plate using high-strength bolts. If the friction damper is damaged, it can be removed and replaced. The replacement operation is convenient; only the local wall of the single-level unit where the friction damper is located needs to be removed, without needing to cross levels. After replacement, the area can be sealed off. Attached Figure Description

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic diagram of the structure in this invention where the friction damper is installed between adjacent housings.

[0033] Figure 2 This is a front structural diagram of the connection between the friction damper and the top and bottom beams in this invention.

[0034] Figure 3 This is a side view of the connection between the friction damper and the top and bottom beams in this invention.

[0035] Figure 4 This is a schematic diagram of the upper damping plate in this invention.

[0036] Figure 5 This is a schematic diagram of the lower damping plate in this invention.

[0037] Figure 6 This is a schematic diagram of the through-connecting plate in this invention.

[0038] Reference numerals in the attached drawings: 1 - Box body, 1.1 - Bottom beam, 1.2 - Top beam, 1.3 - Wall panel, 2 - Friction damper, 2.1 - Upper damping plate, 2.2 - Lower damping plate, 2.3 - First high-strength bolt, 3 - Through connecting plate, 4 - Upper notch, 5 - First vertical strip hole, 6 - First upper longitudinal strip plate, 7 - Second vertical strip hole, 8 - Lower notch, 9 - First lower longitudinal strip plate, 10 - Second high-strength bolt, 11 - Third high-strength bolt, 12 - Second upper longitudinal strip plate, 13 - Second lower longitudinal strip plate, 14 - Fourth high-strength bolt, 15 - First horizontal strip hole, 16 - Second horizontal strip hole, 17 - Third horizontal strip hole, 18 - Fourth horizontal strip hole, 19 - Fifth high-strength bolt. Detailed Implementation

[0039] like Figure 1-6As shown, this box-type housing structure system with friction dampers includes at least three layers of boxes 1, with each layer of boxes 1 spliced ​​together. Each box 1 includes a bottom beam 1.1, a top beam 1.2, and wall panels 1.3. The wall panels 1.3 are detachably connected between the bottom beam 1.1 and the top beam 1.2. It also includes a friction damping structure. The friction damping structure is installed in the vertical gaps between adjacent boxes 1 on each layer. A gap is left between the upper end of the friction damping structure and the top beam 1.2, and the lower end of the friction damping structure extends into the vertical gap of the next adjacent box 1 on the next layer. This friction damping structure includes a friction damper 2 and a through-connecting plate 3. The friction damper 2 is plate-shaped. The friction damper 2 is arranged along the vertical gap. It includes an upper damping plate 2.1, a lower damping plate 2.2, and a first high-strength bolt 2.3. The upper damping plate 2.1 is located at the top of the vertical gap. Upper notches 4 are spaced horizontally at intervals on the upper surface of the upper damping plate 2.1, and first vertical strip holes 5 are spaced horizontally at intervals on the lower surface of the upper damping plate 2.1. A first upper longitudinal strip 6 is connected to the top of the upper damping plate 2.1, and the first upper longitudinal strip 6 is connected to the friction damper 2 between the upper layer box 1. The lower damping plate 2.2 is located at the bottom of the vertical gap, and the lower damping plate 2... 2.2 overlaps with the upper damping plate 2.1; a second vertical strip hole 7 is provided on the upper part of the plate surface of the lower damping plate 2.2, corresponding to the position of the first vertical strip hole 5; a lower notch 8 is provided at intervals along the horizontal direction on the lower part of the plate surface of the lower damping plate 2.2; the bottom of the lower damping plate 2.2 is connected to the first lower longitudinal strip plate 9; the first high-strength bolt 2.3 is correspondingly inserted into the first vertical strip hole 5 and the second vertical strip hole 7 to connect the upper damping plate 2.1 and the lower damping plate 2.2; the through connecting plate 3 is set in the vertical gap at the connection between two adjacent layers of the box and is located at the bottom of the friction damper 2 of the corresponding layer; the upper part of the through connecting plate 3 is inserted into the corresponding layer. The bottom beams 1.1 of two adjacent box bodies 1 are connected by a second high-strength bolt 10; the lower part of the through-connecting plate 3 is inserted between the top beams 1.2 of two adjacent box bodies 1 in the lower layer, and the through-connecting plate 3 is connected to the top beam 1.2 by a third high-strength bolt 11; a second upper longitudinal strip 12 is provided on the top of the through-connecting plate 3, and the second upper longitudinal strip 12 is connected to the first lower longitudinal strip 9 by a fourth high-strength bolt 14; a second lower longitudinal strip 13 is provided on the bottom of the through-connecting plate 3, and the second lower longitudinal strip 13 is used to connect with the friction damper 2 between the box bodies 1 in the lower layer.

[0040] In this embodiment, both the bottom beam 1.1 and the top beam 1.2 are made of channel steel, and the slots of the bottom beam 1.1 and the top beam 1.2 face the inner side of the corresponding box body; the cross-sectional height of the top beam 1.2 is greater than the cross-sectional height of the bottom beam 1.1, and the cross-sectional width of the top beam 1.2 is greater than the cross-sectional width of the bottom beam 1.1.

[0041] In this embodiment, both the upper damping plate 2.1 and the lower damping plate 2.2 are made of thin steel plates coated with thermally sprayed aluminum, and the thicknesses of the upper damping plate 2.1 and the lower damping plate 2.2 are 4mm to 8mm, respectively.

[0042] In this embodiment, the upper notch 4 is V-shaped, and the distance between the upper ends of adjacent upper notches 4 is 400mm to 500mm; the lower notch 8 is an inverted V-shape, and the distance between the lower ends of adjacent lower notches 8 is 400mm to 500mm.

[0043] In this embodiment, the through connecting plate 3 is made of 20mm thick steel plate. The upper end of the through connecting plate 3 extends 250mm beyond the top surface of the middle layer bottom beam 1.1; the lower end of the through connecting plate 3 extends 250mm beyond the bottom surface of the lower layer top beam 1.2.

[0044] In this embodiment, first horizontal strip holes 15 are provided on the surface of the first upper longitudinal strip plate 6, on both sides of the upper damping plate 2.1, at intervals along vertical gaps; second horizontal strip holes 16 are provided on the surface of the first lower longitudinal strip plate 9, on both sides of the lower damping plate 2.2, at intervals along vertical gaps; third horizontal strip holes 17 are provided on the surface of the second upper longitudinal strip plate 12, on both sides of the through connecting plate 3, at intervals along vertical gaps; fourth horizontal strip holes 18 are provided on the surface of the second lower longitudinal strip plate 13, on both sides of the through connecting plate 3, at intervals along vertical gaps; the first upper longitudinal strip plate 6 and the second lower longitudinal strip plate 13 at the bottom of the through connecting plate 3 are connected by fifth high-strength bolts 19 passing through the first horizontal strip holes 15 and the fourth horizontal strip holes 18; the first lower longitudinal strip plate 9 and the second upper longitudinal strip plate 12 at the top of the through connecting plate 3 are connected by fourth high-strength bolts 14 passing through the second horizontal strip holes 16 and the third horizontal strip holes 17.

[0045] In this embodiment, friction plates 2.4 are respectively placed between the first high-strength bolt 2.3 and the upper damping plate 2.1 and the lower damping plate 2.2.

[0046] In this embodiment, the box-type house structure system with friction damper is installed at the end of the main structure; the main structure is a box, or it can be a combination of a steel frame and a box. When the structure is a frame structure, the box and the steel frame beam are connected by connecting plates;

[0047] In this embodiment, the wall panel 1.3 is made of 1.6mm thick corrugated steel plate.

[0048] In this embodiment, the upper damping plate 2.1 is welded to the first upper longitudinal strip plate 6, and the lower damping plate 2.2 is welded to the first lower longitudinal strip plate 9.

[0049] In this embodiment, the length of the first vertical hole 5 is 250mm~300mm; the length of the second vertical hole 7 is 250mm~300mm.

[0050] In this embodiment, a set of second high-strength bolts 10 is arranged at intervals along the long axis of the vertical gap, and a set of second high-strength bolts 10 connects the through connecting plate 3 to the bottom beam 1.1; a set of third high-strength bolts 11 is arranged at intervals along the long axis of the vertical gap, and a set of third high-strength bolts 11 connects the lower part of the through connecting plate 3 to the top beams 1.2 of the two adjacent boxes 1 in the lower layer.

[0051] The construction method for this box-type house structure system with friction dampers includes the following steps.

[0052] Step 1: Fabricate friction damper 2.

[0053] Step 2: Install the first-floor through-connecting plate 3 and connect the lower end of the first-floor through-connecting plate 3 to the main structure at the bottom.

[0054] Step 3: Hoist the first-floor box 1 and connect it to the main structure at the bottom. Before installing the first-floor box 1, remove the wall panel on the side of the first-floor box 1 closest to the friction damper 2 to facilitate the installation of the friction damper 2.

[0055] Step 4, install the friction damper 2 on the first floor: connect the lower end of the friction damper 2 on the first floor to the through connecting plate 3 on the first floor.

[0056] Step 5: Hoist the second-floor box 1; connect the second-floor box 1 to the first-floor box 1; before installing the second-floor box 1, remove the wall panel of the second-floor box 1 on the side close to the designed friction damper 2.

[0057] Step 6, Install the second-layer through-connecting plate 3: Connect the lower end of the second-layer through-connecting plate 3 to the upper end of the first-layer friction damper 2.

[0058] Step 7, Install the second-layer friction damper 2: Connect the lower end of the second-layer friction damper 2 to the second-layer through-connecting plate 3.

[0059] Step 8: Repeat steps 5 through 7.

[0060] Step 9: Hoist the top box 1. Before installing the top box 1, remove the wall panel on the side of the top box 1 closest to the designed friction damper 2.

[0061] Step 10, Install the uppermost through-connecting plate 3: Connect the lower end of the uppermost through-connecting plate 3 to the upper end of the next uppermost friction damper 2.

[0062] Step 11, Install the uppermost friction damper 2: Connect the lower end of the uppermost friction damper 2 to the uppermost through connecting plate 3, and make the upper end of the uppermost friction damper 2 flush with the top of the uppermost box 1.

[0063] Step 12: Install the removed wall panels. Construction is now complete.

[0064] The above embodiments are not exhaustive examples of specific implementation methods, and other embodiments are also possible. The purpose of the above embodiments is to illustrate the present invention, rather than to limit the scope of protection of the present invention. All applications derived from simple variations of the present invention fall within the scope of protection of the present invention.

Claims

1. A box-type house structure system with friction damper, comprising at least three box-type structures (1), wherein each box-type structure (1) is spliced ​​together; each box-type structure (1) comprises a bottom beam (1.1), a top beam (1.2), and a wall panel (1.3); the wall panel (1.3) is detachably connected between the bottom beam (1.1) and the top beam (1.2); characterized in that: It also includes a friction damping structure; the friction damping structure is set in the vertical gap of each adjacent box (1), the upper end of the friction damping structure is spaced from the top beam (1.2), and the lower end of the friction damping structure extends into the vertical gap of the next adjacent box (1); the friction damping structure includes a friction damper (2) and a through connecting plate (3); the friction damper (2) is plate-shaped and is set along the vertical gap; the friction damper (2) includes an upper damping plate (2.1), a lower damping plate (2.2) and a first high-strength bolt (2.3); the upper damping plate (2.1) is set at the upper part of the vertical gap, and on the upper damping plate (2.1) The upper surface of the upper damping plate (2.1) is provided with upper notches (4) spaced horizontally, and the lower surface of the upper damping plate (2.1) is provided with first vertical strip holes (5) spaced horizontally; the top of the upper damping plate (2.1) is connected to a first upper longitudinal strip plate (6), and the first upper longitudinal strip plate (6) is connected to the friction damper (2) between the upper layer box (1); the lower damping plate (2.2) is provided at the lower part of the vertical gap, and the lower damping plate (2.2) overlaps with the upper damping plate (2.1); the upper surface of the lower damping plate (2.2) is provided with a second vertical strip hole (7) at the position corresponding to the first vertical strip hole (5), and the lower damping plate (2.2) is provided with a second vertical strip hole (7) at the position corresponding to the first vertical strip hole (5). The lower part of the surface is provided with lower notches (8) spaced horizontally; the bottom of the lower damping plate (2.2) is connected to the first lower longitudinal strip plate (9); the first high-strength bolt (2.3) is correspondingly inserted into the first vertical strip hole (5) and the second vertical strip hole (7) to connect the upper damping plate (2.1) and the lower damping plate (2.2); the through connecting plate (3) is set in the vertical gap at the connection between two adjacent box bodies and is located at the bottom of the friction damper (2) of the corresponding layer; the upper part of the through connecting plate (3) is inserted between the bottom beam (1.1) of the two adjacent box bodies (1) of the corresponding layer, and the through connecting plate (3) is connected to the bottom beam (1.1). The two boxes are connected by a second high-strength bolt (10); the lower part of the through connecting plate (3) is inserted between the top beams (1.2) of the two adjacent boxes (1) in the lower layer, and the through connecting plate (3) and the top beam (1.2) are connected by a third high-strength bolt (11); the top of the through connecting plate (3) is provided with a second upper longitudinal strip plate (12), and the second upper longitudinal strip plate (12) is connected to the first lower longitudinal strip plate (9) by a fourth high-strength bolt (14); the bottom of the through connecting plate (3) is provided with a second lower longitudinal strip plate (13), and the second lower longitudinal strip plate (13) is used to connect with the friction damper (2) between the boxes (1) in the lower layer.

2. The box-type house structure system with friction damper according to claim 1, characterized in that: Both the bottom beam (1.1) and the top beam (1.2) are made of channel steel, and the slots of the bottom beam (1.1) and the top beam (1.2) face the inner side of the corresponding box body; the cross-sectional height of the top beam (1.2) is greater than the cross-sectional height of the bottom beam (1.1), and the cross-sectional width of the top beam (1.2) is greater than the cross-sectional width of the bottom beam (1.1).

3. The box-type house structure system with friction damper according to claim 1, characterized in that: The upper damping plate (2.1) and the lower damping plate (2.2) are both made of thin steel plates coated with thermally sprayed aluminum, and the thickness of the upper damping plate (2.1) and the lower damping plate (2.2) are 4mm~8mm respectively.

4. The box-type house structure system with friction damper according to claim 1, characterized in that: The upper notch (4) is V-shaped, and the distance between the upper ends of adjacent upper notches (4) is 400mm ~ 500mm; the lower notch (8) is an inverted V-shape, and the distance between the lower ends of adjacent lower notches (8) is 400mm ~ 500mm.

5. The box-type house structure system with friction damper according to claim 1, characterized in that: The through-connecting plate (3) is made of 20mm thick steel plate. The upper end of the through-connecting plate (3) extends 250 mm beyond the top surface of the middle layer bottom beam (1.1); the lower end of the through-connecting plate (3) extends 250 mm beyond the bottom surface of the lower layer top beam (1.2).

6. The box-type house structure system with friction damper according to claim 1, characterized in that: On the surface of the first upper longitudinal strip plate (6), on both sides of the upper damping plate (2.1), a first horizontal strip hole (15) is provided at intervals along the vertical gap; on the surface of the first lower longitudinal strip plate (9), on both sides of the lower damping plate (2.2), a second horizontal strip hole (16) is provided at intervals along the vertical gap; on the surface of the second upper longitudinal strip plate (12), on both sides of the through connecting plate (3), a third horizontal strip hole (17) is provided at intervals along the vertical gap; on the surface of the second lower longitudinal strip plate (13), on both sides of the through connecting plate... (3) is provided with fourth horizontal strip holes (18) on both sides of the vertical gap; the first upper vertical strip (6) is connected to the second lower vertical strip (13) at the bottom of the upper layer through connecting plate (3) by a fifth high-strength bolt (19) passing through the first horizontal strip hole (15) and the fourth horizontal strip hole (18); the first lower vertical strip (9) is connected to the second upper vertical strip (12) at the top of the through connecting plate (3) by a fourth high-strength bolt (14) passing through the second horizontal strip hole (16) and the third horizontal strip hole (17).

7. The box-type house structure system with friction damper according to claim 1, characterized in that: Friction pads are respectively placed between the first high-strength bolt (2.3) and the upper damping plate (2.1) and the lower damping plate (2.2).

8. A construction method for a box-type house structure system with friction damper as described in any one of claims 1-7, characterized in that, The steps include the following: Step 1, make the friction damper (2); Step 2: Install the first-floor through-connecting plate (3) and connect the lower end of the first-floor through-connecting plate (3) to the bottom main structure; Step 3: Hoist the first-floor box (1) and connect the first-floor box (1) to the main structure at the bottom; before installing the first-floor box (1), remove the wall panel on the side of the first-floor box (1) close to the designed friction damper (2) to facilitate the installation of the friction damper (2); Step 4, install the friction damper (2) of the first layer: connect the lower end of the friction damper (2) of the first layer to the through connecting plate (3) of the first layer; Step 5, hoisting the second-floor box (1): connect the second-floor box (1) to the first-floor box (1); before installing the second-floor box (1), remove the wall panel of the second-floor box (1) on the side close to the designed friction damper (2); Step 6, install the second-layer through-connecting plate (3): connect the lower end of the second-layer through-connecting plate (3) to the upper end of the first-layer friction damper (2); Step 7, Install the friction damper (2) of the second layer: Connect the lower end of the friction damper (2) of the second layer to the through connecting plate (3) of the second layer; Step 8: Repeat steps 5 through 7. Step 9: Hoist the top box (1). Before installing the top box (1), remove the wall panel of the top box (1) on the side close to the designed friction damper (2). Step 10, Install the uppermost through-connecting plate (3): Connect the lower end of the uppermost through-connecting plate (3) to the upper end of the next uppermost friction damper (2); Step 11, Install the uppermost friction damper (2): Connect the lower end of the uppermost friction damper (2) to the uppermost through connecting plate (3), and make the upper end of the uppermost friction damper (2) flush with the top of the uppermost box (1). Step 12: Install the removed wall panels. Construction is now complete.

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