Sliding seismic isolation modular building

Abstract

This invention relates to a sliding isolation modular building, comprising: a modular assembly constituting the main body of the building; a building foundation supporting the modular assembly; a sliding layer between the modular assembly and the building foundation, comprising an upper sliding interface and a lower sliding interface fixedly connected to the bottom of the modular assembly and the top of the building foundation respectively, and a sliding medium disposed between the upper sliding interface and the lower sliding interface; and a sliding control component connecting the modular assembly and the building foundation for controlling the sliding state. Compared with the prior art, this invention can reduce the seismic response of the upper modular building, protect non-structural components within the modules, achieve lighter modular unit design, simpler connections between adjacent modules, adapt to diverse layouts and stress characteristics, and improve the seismic performance of the modular building through a simple sliding isolation measure that is inexpensive and easy to construct.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fabricated buildings and relates to a sliding isolation modular building. BACKGROUND

[0002] Modular building refers to a building form in which a room unit is taken as a prefabricated component unit, the room unit is prefabricated in a factory and then transported to a construction site for installation. The prefabricated module is a room unit with complete decoration of all pipe networks such as heating, sewerage and lighting, and is the highest integrated form of industrialized fabricated building. Modular building has the advantages of short construction period, saving of manpower, construction safety, guaranteed quality and the like, and conforms to the concepts of building industrialization and low-carbon construction.

[0003] The seismic performance of a modular building structure depends on the mechanical performance of the module itself and the deformation coordination between the modules. Considering transportation and hoisting and the use requirements of the building, the cross section of the component of the module unit is relatively thin, and the module unit has non-structural components such as light partition walls, doors and windows, so the deformation limit of the structure is relatively high. If sufficient seismic measures are taken at the module joint, the connection structure of the joint area will be very complex, which is not conducive to on-site assembly and is not economical.

[0004] The adoption of isolation setting can reduce a large amount of seismic action transmitted to the upper structure and reduce the stress demand of the upper module unit and the connection between the module units. Designs similar to CN111827762A and CN206521843U have the similar design, however, there is no modular building structure isolation system that can be widely promoted at present. For example, the construction of the spring isolator or damper set at the foundation is relatively complex; the damping of the sand cushion layer has a risk of liquefaction; the cost of the rubber isolation bearing is relatively high; and for sliding isolation, the setting of the limiter may cause the upper structure to suddenly bear a large force and increase the risk of overturning.

[0005] It can be seen that suitable isolation measures should be effective in any horizontal direction and should not have adverse effects in other degrees of freedom. In addition, the isolation structure should meet the deviation requirements generated during construction, and within the allowable range, the isolation structure should remain effective. Moreover, for the rapid construction method of modular building, the isolation measures should have simple structure, low cost, be insensitive to construction errors, and be able to achieve the design goal of sliding isolation under different fortification intensities. Then, there is no isolation device reported that meets the above requirements, and the present application is proposed based on this. SUMMARY

[0006] The application aims to provide a sliding isolation modular building, which reduces the seismic response of the upper structure and meets the sliding isolation design target under different fortification intensity by setting a sliding layer and a sliding control component between the module group and the foundation, promotes the lightweight design of the module unit, the simple and fast connection between the modules, effectively protects the non-structural components inside the integrated module, and improves the module structure design, construction and use problems caused by the current reliance on seismic measures.

[0007] The application aims to provide a sliding isolation modular building, which reduces the seismic response of the upper structure and meets the sliding isolation design target under different fortification intensity by setting a sliding layer and a sliding control component between the module group and the foundation, promotes the lightweight design of the module unit, the simple and fast connection between the modules, effectively protects the non-structural components inside the integrated module, and improves the module structure design, construction and use problems caused by the current reliance on seismic measures.

[0008] A sliding isolation modular building comprises:

[0009] A module group constituting a building main body;

[0010] A building foundation bearing the module group;

[0011] A sliding layer between the module group and the building foundation, which comprises an upper sliding interface and a lower sliding interface fixedly connected with the bottom of the module group and the top of the building foundation respectively, and a sliding medium placed between the upper sliding interface and the lower sliding interface;

[0012] And a sliding control component connected with the module group and the building foundation and used for controlling the sliding state.

[0013] Further, the module group is an upper integral structure formed by reliably connecting a plurality of module units and a top floor panel. The reliable connection mode is selected as prestressed connection, lock connection, etc. according to the suitable connection of different components to meet the connection stability between the components.

[0014] Further, the module unit is a 3D solid component, a 2D panel component or a 1D beam column component. More preferably, the structural components in the module unit can be welded by steel components or integrally poured by concrete in the factory according to actual needs; the non-structural components can be designed and completed by using different materials, door and window positions and sizes, and water and electricity pipe network arrangement according to the building use requirements. The specific structure of the module unit is a conventional technology in the field, which will not be described here.

[0015] Further, the top floor panel is a cast-in-place concrete panel or a composite floor;

[0016] Different module units are connected by bolt connection or prestressed connection.

[0017] Further, the building foundation is a strip foundation or a raft foundation.

[0018] Further, the upper sliding interface and the lower sliding interface both adopt rigid plates, specifically, the rigid plates can adopt steel plates, stainless steel plates, aluminum alloy plates, etc. according to the requirements of rigidity, cost, etc.

[0019] Further, the upper sliding interface is anchored to the module group, and specifically, the anchoring mode can be anchoring of steel bars, anchoring measures such as shear nails, etc.

[0020] The lower sliding interface is adhesively connected to the building foundation, and specifically, the adhesive material can be steel bonding structure glue, etc.

[0021] Further, the material of the sliding medium is molybdenum disulfide, polytetrafluoroethylene, polyethylene, nylon or graphite, which is combined with the upper sliding interface or the lower sliding interface in a uniform coating or embedded manner.

[0022] Further, the sliding control component is a brittle connection material fixedly connected to the module group and the building foundation, respectively, and the stress rupture critical value of the brittle connection material is adjusted according to the sliding requirement between the module group and the foundation. Exemplarily, the brittle connection material can be ceramic or glass, etc., or other materials that will be broken under a certain force according to the requirement.

[0023] Further, a sliding space is reserved between the module group and the building foundation, and specifically, the sliding space is formed by widening the foundation according to the designed sliding amount, that is, the sliding displacement of the module group relative to the foundation under the action of an earthquake does not exceed the size of the widened foundation.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] (1) Since the module unit itself contains a floor, the sliding layer can be directly arranged between the module bottom and the foundation;

[0026] (2) Compared with the anti-seismic strengthening measures for the modular building, the arrangement of the sliding layer can reduce the amount of seismic action on the upper structure, so that the module unit can be designed to be lighter, the load bearing capacity and stiffness requirement of the connection between adjacent modules is reduced, the deformation of the upper module structure is reduced, and the non-structural components in the module unit are protected;

[0027] (3) The module unit of the modular structure is relatively rigid, and the interlayer deformation is more significant, so that the arrangement of the sliding layer can make the deformation of the seismic isolation performance more fully play;

[0028] (4) By adjusting the sliding control component, the sliding isolation design goal of the modular building under different fortification intensities can be achieved;

[0029] (5) By adjusting the sliding medium in the sliding layer, the seismic response of the structure can be significantly reduced, the overall stress of the structure during sliding is ensured, the stress requirement of different plane layouts and structural forms is adapted, and then the requirement of hoisting and transportation is reduced, and the module splicing is more efficient and safe;

[0030] (6) The setting of the roof panel increases the stress integrity of the overall modular building structure. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A disassembled schematic view of the simple sliding isolation modular building;

[0032] Figure 2 A disassembled schematic view of the module group;

[0033] Figure 3 A disassembled schematic view of the sliding layer;

[0034] Figure 4 A schematic view of the upper sliding interface and the anchoring connection of the module unit after connection;

[0035] Figure 5 A schematic view of the lower sliding interface and the bonding connection of the foundation after connection;

[0036] Figure 6 A schematic view of the module corner and the foundation structure;

[0037] Figure 7 A schematic view of one application scenario of the sliding isolation modular building;

[0038] Figure 8 A schematic view of another application scenario of the sliding isolation modular building;

[0039] Marking description in the figure:

[0040] 1-Module group, 101-Module unit, 102-Roof panel, 2-Sliding layer, 201-Upper sliding interface, 202-Sliding medium, 203-Lower sliding interface, 3-Building foundation, 4-Sliding control component. DETAILED DESCRIPTION

[0041] The present application will be described in detail below in conjunction with the drawings and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present application, and gives a detailed implementation manner and specific operation process, but the protection scope of the present application is not limited to the following embodiments.

[0042] In the following embodiments or examples, if there is no special description of the function components or structures, it means that they are all conventional components or conventional structures adopted in the field to realize the corresponding functions.

[0043] To reduce the seismic response of the superstructure and meet the sliding isolation design target under different fortification intensities, the present embodiment provides a sliding isolation modular building, the structure of which can be seen from Figures 1 to 7 and the like, including:

[0044] The module group 1 constituting the building main body;

[0045] a building foundation 3 bearing the module group 1;

[0046] a slip layer 2 between the module group 1 and the building foundation 3, which comprises an upper slip interface 201 and a lower slip interface 203 fixedly connected with the bottom of the module group 1 and the top of the building foundation 3 respectively, and a slip medium 202 placed between the upper slip interface 201 and the lower slip interface 203;

[0047] and a lifting-off control component 4 connecting the module group 1 and the building foundation 3 and used for controlling the lifting-off state.

[0048] In some specific embodiments, the module group 1 is an upper integral structure formed by reliably connecting a plurality of module units 101 and a top floor panel 102. The reliable connection mode is selected according to the suitable connection of different components, such as bolt connection, prestressed connection, lock connection, etc., to meet the connection stability between components.

[0049] In more specific embodiments, the module unit 101 is a 3-dimensional solid component, a 2-dimensional panel component or a 1-dimensional beam column component. More preferably, the structural component in the module unit 101 can be welded by steel components or integrally poured by concrete in the factory according to actual needs; the non-structural component can be designed and completed by using different materials, door and window position and size, water and electricity pipe network arrangement according to the building use requirements. The specific structure of the module unit 101 is a routine technology in the art, which will not be described here.

[0050] In more specific embodiments, the top floor panel 102 is a cast-in-place concrete slab or a composite floor slab.

[0051] The bolt connection or the prestressed connection or other connection measures are used between different module units 101.

[0052] In some specific embodiments, the building foundation 3 is a strip foundation or a raft foundation, etc.

[0053] In some specific embodiments, the upper slip interface 201 and the lower slip interface 203 both adopt rigid plates, specifically, the rigid plates can adopt steel plates, stainless steel plates, aluminum alloy plates, etc. according to the requirements of rigidity, cost, etc.

[0054] In some specific embodiments, the upper sliding interface 201 is anchored to the module group 1. Specifically, the anchoring connection can be achieved through steel bar anchoring, shear studs, or other anchoring measures. The lower sliding interface 203 is bonded to the building foundation 3. Specifically, the bonding material can be steel structure adhesive, etc. By using anchoring to form the upper sliding interface 201 and the module group 1 into a whole, the entire upper sliding interface can be fabricated during the production of the bottom module unit 101 without demolding, simplifying the manufacturing process. Furthermore, the bonding of the lower sliding interface 203 to the building foundation 3 better balances the leveling function at the bottom, preventing the module group from tilting after the overall structure is installed. In addition, the upper and lower sliding interfaces also enable more stable sliding.

[0055] In some specific embodiments, the material of the sliding medium 202 is molybdenum disulfide, polytetrafluoroethylene, polyethylene, nylon or graphite, and it is combined with the upper sliding interface 201 or the lower sliding interface 203 by uniform coating or embedding.

[0056] In some specific embodiments, the slip control component 4 is a brittle connecting material that fixes the module group 1 and the building foundation 3 respectively, and the critical value of the brittle connecting material under stress fracture is adjusted according to the slip requirements between the module group 1 and the foundation.

[0057] In some specific embodiments, the brittle connecting material is ceramic or glass.

[0058] In some specific embodiments, the sliding layer 2 has several segments at the edge contact portion between the module group 1 and the building foundation 3, and each segment of the sliding layer 2 can be equipped with the sliding control component 4 as needed. The sliding layer 2 can be arranged at the angle of the interface between the module group 1 and the building foundation 3, or it can be arranged across the entire contact interface, depending on the actual situation. It should be noted that, except for the area where the sliding layer is not set, the area between the building foundation and the module group is basically out of contact with the module group. In addition, there are no special requirements for the shape of the sliding control component 4, as long as its breakage does not affect subsequent sliding.

[0059] Each of the above implementation methods can be implemented individually, or in any combination of two or more.

[0060] The above-described embodiments will be described in more detail below with reference to specific examples.

[0061] Example 1:

[0062] To reduce the seismic response of the superstructure and meet the design objectives of slip isolation under different seismic fortification intensities, this invention provides a slip isolation modular building, the structure of which can be found in [reference needed].Figures 1 to 7 As shown, including:

[0063] Module group 1 that constitutes the main body of the building;

[0064] The building foundation 3 supports the module group 1;

[0065] The sliding layer 2 between the module group 1 and the building foundation 3 includes an upper sliding interface 201 and a lower sliding interface 203 that are fixedly connected to the bottom of the module group 1 and the top of the building foundation 3 respectively, and a sliding medium 202 placed between the upper sliding interface 201 and the lower sliding interface 203.

[0066] And a slip control component 4 that connects the module group 1 and the building foundation 3 and is used to control the slip state.

[0067] Please see again. Figure 2 As shown, the module group 1 is an integral upper structure formed by reliably connecting several module units 101 with the top roof panel 102. The reliable connection method is selected according to the appropriate connection method for different components, such as bolt connection, riveting connection, mortise and tenon connection, to ensure the connection stability between components. The module unit 101 can be a 3D solid component, a 2D panel component, or a 1D beam and column component. Furthermore, the structural components in the module unit 101 can be welded from steel components or integrally cast from concrete in a factory according to actual needs; non-structural components can be designed and constructed using different materials, with varying door and window locations and sizes, and water and electricity network layouts, according to the building's usage requirements. The specific structure of the module unit 101 in this part is conventional technology in the field and will not be elaborated further here.

[0068] Meanwhile, the top roof panel 102 is a cast-in-place concrete slab or a composite floor slab; different module units 101 are connected by bolts or prestressed connections.

[0069] In this embodiment, the building foundation 3 is a strip foundation or a raft foundation, etc. Figure 1 As shown.

[0070] In this embodiment, both the upper sliding interface 201 and the lower sliding interface 203 are made of rigid plates. Specifically, the rigid plates can be made of steel plates, stainless steel plates, aluminum alloy plates, etc., according to requirements such as rigidity and cost.

[0071] In some specific embodiments, the upper sliding interface 201 is anchored to the module group 1. Specifically, the anchoring connection method can be anchoring with steel bars, shear nails, or other anchoring measures.

[0072] The sliding interface 203 is bonded to the building foundation 3, and the bonding material can be steel structure adhesive, etc. By using an anchoring method to form the upper sliding interface 201 and the module group 1 into a whole, the entire upper sliding interface can be made during the fabrication of the bottom module unit 101 without demolding, which is convenient for manufacturing. The sliding interface 203 is bonded to the building foundation 3, which can better take into account the leveling function at the bottom and prevent the module group from tilting after the overall structure is installed.

[0073] The material of the sliding medium 202 can be selected from molybdenum disulfide, polytetrafluoroethylene, polyethylene, nylon or graphite. It is combined with the upper sliding interface 201 or the lower sliding interface 203 by uniform coating or embedding. In this embodiment, the sliding medium 202 is constructed in the form of a molybdenum disulfide coating.

[0074] The slip control component 4 is a brittle connecting material that is fixedly connected to the module group 1 and the building foundation 3 respectively. The critical value of the brittle connecting material under stress fracture is adjusted according to the slip requirements between the module group 1 and the foundation. For example, the brittle connecting material is ceramic or glass.

[0075] The sliding layer 2 has several segments at the edge contact between the module group 1 and the building foundation 3, and each segment of the sliding layer 2 can be equipped with the sliding control component 4 as needed. The number of components can be one or more as needed.

[0076] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A sliding isolation modular building, characterized in that, include: Modular groups that make up the main body of the building; The building foundation supporting the module group; The sliding layer between the module group and the building foundation includes an upper sliding interface and a lower sliding interface that are fixedly connected to the bottom of the module group and the top of the building foundation, respectively, and a sliding medium placed between the upper sliding interface and the lower sliding interface. And a slip control component for controlling the slip state of the module group and the building foundation; The material of the slip medium is molybdenum disulfide, polytetrafluoroethylene, polyethylene, nylon, or graphite; The sliding medium is combined with the upper sliding interface or the lower sliding interface by means of uniform coating or embedding; The slip control component is a brittle connecting material that fixes the module group to the building foundation.

2. A sliding isolation modular building according to claim 1, characterized in that, The module group is an integral upper structure consisting of several module units reliably connected to the top roof panel.

3. A sliding isolation modular building according to claim 1, characterized in that, Both the upper sliding interface and the lower sliding interface are made of rigid plates.

4. A sliding isolation modular building according to claim 1, characterized in that, The upper sliding interface is anchored to the module group.

5. A sliding isolation modular building according to claim 1, characterized in that, The sliding interface is bonded to the building foundation.

6. A sliding isolation modular building according to claim 1, characterized in that, The critical value for fracture under stress of the brittle connection material is adjusted according to the slippage requirements between the module group and the foundation.

7. A sliding isolation modular building according to claim 1, characterized in that, There is also a reserved sliding space between the module group and the building foundation.

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