Externally-hung energy absorption structure, externally-hung wall body using structure and installation method of externally-hung wall body

Abstract

The invention discloses an externally-hung energy absorption structure, an externally-hung wall body using the structure and a mounting method of the externally-hung wall body, and relates to the field of civil engineering construction. The problems that an existing externally-hung energy absorption structure is limited in energy dissipation capacity, fire risks are likely to be generated in the welding process, and cost is high are solved. A hanging plate (C) is a rectangular plate body, through holes are formed in the periphery of the hanging plate (C), a plurality of square steel pipe bodies (B) are fixedly installed on the hanging plate (C) in a rectangular array mode, the upper portions of the square steel pipe bodies (B) are inserted into a double-steel-plate-concrete combined plate (A), a sleeve is embedded in the double-steel-plate-concrete combined plate (A), and the square steel pipe bodies (B) are fixedly installed on the double-steel-plate-concrete combined plate (A). And the sleeve and the through hole in the hanging plate (C) are coaxially arranged. A plurality of externally-hung energy absorption structures are assembled into a rectangular face wall and then installed on the outer side wall of the building body (D). The device is used for protecting a building structure when the building structure faces impact and blast loads.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering construction, and in particular to an externally mounted energy absorbing structure, an externally mounted wall using the structure, and an installation method of the externally mounted wall. Background Art

[0002] The external energy-absorbing structure is attached to the exterior of the main structure of the building through construction technology, and uses its own material properties (such as elastic-plastic deformation, friction, damping, etc.) to absorb and dissipate energy, thereby reducing the energy and load acting on the main structure and effectively protecting the safety of the main structure. However, in today's social environment and international situation, extreme events such as impacts and explosions occurring around the world are increasing year by year, which puts higher requirements on the impact and explosion defense capabilities of building structures.

[0003] In my country, various engineering structures are often hit by impacts and explosions during their service life, causing huge losses of life and property. In addition, for existing building structures, extreme impacts and explosions are usually not considered during their initial design and construction stages. This situation makes the protection capabilities of existing buildings seriously insufficient when facing the risks of impacts and explosions. For some buildings with key strategic significance, such as important transportation hubs, once they are hit by impacts or explosions, the consequences will be disastrous.

[0004] External energy-absorbing structures have shown great potential in the field of building protection due to their significant advantages such as high energy consumption performance, excellent structural adaptability, simple construction process, and easy maintenance and replacement.

[0005] At present, the existing external energy absorption structures have many problems such as poor energy dissipation effect and complex manufacturing process. In addition, the connection between the energy absorption structure and the main structure is the key link to ensure that the energy absorption structure can reliably exert its energy dissipation characteristics. The connection part must be able to reliably transmit the internal force, and at the same time ensure that when the energy absorption structure is in effect, the connection will not fail before the energy absorption structure.

[0006] For example: external energy absorption structures mainly include thin-walled metal energy absorption structures, polymer foam energy absorption structures, metal honeycomb energy absorption structures and additively manufactured origami honeycomb energy absorption structures. Among them, thin-walled metal energy absorption structures are unable to cope with impact and explosion loads with large energy due to their limited energy absorption capacity; polymer foam energy absorption structures are expensive and have fire risks during the welding process. In addition, the metal honeycomb structure has a complex molding process and high cost. Additively manufactured origami energy absorption structures are generally not suitable for large-scale building structures and are not easy to promote. Therefore, there is an urgent need for an external energy absorption structure that is suitable for building structures, has good energy absorption capacity and is low in cost.

[0007] In summary, the existing external energy-absorbing structures have the problems of limited energy consumption capacity, fire risk during welding and high cost. Summary of the invention

[0008] The purpose of the present invention is to solve the problems of limited energy consumption capacity, fire risk during welding and high cost of existing external energy absorbing structures, and to provide an external energy absorbing structure, an external wall using the structure and an installation method of the external wall.

[0009] The technical solution of the present invention is:

[0010] An external energy absorption structure comprises a hanging plate, a double steel plate-concrete composite plate and a plurality of square steel tubes. The hanging plate is a rectangular plate with through holes formed on all sides thereof. The plurality of square steel tubes are fixedly mounted on the hanging plate in a rectangular array. The upper parts of the plurality of square steel tubes are inserted into the double steel plate-concrete composite plate. A sleeve is embedded in the double steel plate-concrete composite plate, and the sleeve is coaxially arranged with the through holes on the hanging plate.

[0011] Furthermore, the square steel tube body comprises a rectangular tube body and a filler, the upper part of the rectangular tube body is relatively provided with plug-in ears, and the filler is inserted into the rectangular tube body.

[0012] Preferably, the filler is glued to the rectangular tube body, and a gap is left between the filler and the inner wall of the rectangular tube body, and the gap is 0.8 mm-2.5 mm.

[0013] Preferably, the filler is polymer foam or metal foam.

[0014] Furthermore, the double steel plate-concrete composite plate includes an upper steel plate, a concrete plate, a side steel plate, a lower steel plate and multiple sleeves, the multiple sleeves are pre-buried in the concrete plate, the concrete plate is embedded in the side steel plate, and the upper steel plate and the lower steel plate are respectively covered on the upper end surface and the lower end surface of the concrete plate.

[0015] Furthermore, the square steel tube body and the hanging plate are fixedly connected by plug welding.

[0016] The present invention also provides an external wall, which includes a cover plate assembly and multiple external energy absorbing structures. The multiple external energy absorbing structures are assembled into a rectangular wall and then installed on the outer side wall of the building body. The cover plate assembly E is covered on the rectangular wall, and the cover plate assembly is connected to the building body through the external energy absorbing structure.

[0017] Furthermore, when the four sides of the building body are all equipped with external energy absorption structures or two adjacent sides are equipped with external energy absorption structures, the cover plate assembly includes a cross-shaped cover plate, a T-shaped cover plate, an end right-angle cover plate and a middle right-angle cover plate.

[0018] The end right-angle cover plate, at least one T cover plate and the end right-angle cover plate are installed in sequence from left to right to form the first row of cover plates; the middle right-angle cover plate, at least one cross cover plate and the middle right-angle cover plate are installed in sequence from left to right to form the second row of cover plates to the N-1th row of cover plates; the end right-angle cover plate, at least one T cover plate and the end right-angle cover plate are installed in sequence from left to right, and are arranged in a horizontal straight line mirroring manner with the first row of cover plates to form the Nth row of cover plates; the first row of cover plates, multiple second row cover plates and the Nth row of cover plates are sequentially covered on the rectangular wall from top to bottom;

[0019] Alternatively, when one of the four sides of the building body has an external energy absorption structure, the cover plate assembly includes a cross-shaped cover plate, a T-shaped cover plate, and an L-shaped cover plate.

[0020] The L cover plate, at least one T cover plate and another L cover plate are installed in sequence from left to right to form the first row of cover plates; the T cover plate, at least one cross cover plate and another T cover plate are installed in sequence from left to right to form the second row of cover plates to the N-1th row of cover plates; the L cover plate, at least one T cover plate and another L cover plate are installed in sequence from left to right, and are arranged in a horizontal straight line mirror manner with the first row of cover plates to form the Nth row of cover plates; the first row of cover plates, multiple second row cover plates and Nth row of cover plates are sequentially covered on the rectangular wall from top to bottom.

[0021] The present invention also provides a method for installing an external wall, which comprises the following steps:

[0022] Step 1: Make an external energy-absorbing structure:

[0023] Step 1: Cut the rectangular tube body, the upper steel plate, the side steel plate, the lower steel plate and the plurality of casings and fillers into corresponding sizes;

[0024] Step 1 and 2: Weld the rectangular tube body to the hanging plate by plug welding;

[0025] Step 13: Fill the filler into the rectangular tube;

[0026] Step 14: Weld the lower steel plate to the rectangular tube body;

[0027] Step 15: Weld three of the four side steel plates in the double steel plate-concrete composite plate to the lower steel plate, and weld the embedded casing on the lower steel plate at the same time;

[0028] Step 16: Weld the upper steel plate of the double steel plate-concrete to the side steel plate and the rectangular tube body;

[0029] Step 17: Pour concrete, smooth it and sprinkle water for maintenance;

[0030] Step 18: Weld the fourth lateral steel plate;

[0031] Step 2: Connect the external energy-absorbing structure to the main building:

[0032] Step 21: implanting pre-buried long bolts into the main body of the building, where the length of the long bolts is greater than the height of the external energy absorbing structure;

[0033] Step 22: Pass the embedded long bolts through the reserved holes and embedded sleeves on the external energy absorbing structure;

[0034] Step 23: According to the size of the building body and the number of external energy absorbing structures used, different numbers of cover plate assemblies are processed and the cover plate assemblies are connected to the external energy absorbing structures. At this point, the installation of the external energy absorbing structure added to the building is completed.

[0035] Furthermore, the lower steel plate in step 1-4 is connected to the rectangular tube body by spot welding.

[0036] Furthermore, the external energy absorbing structure in step one has a horizontal section or an arc section in longitudinal section.

[0037] Compared with the prior art, the present invention has the following effects:

[0038] 1. The external energy-absorbing structure of the present invention is embedded with a sleeve in the double steel plate-concrete composite plate A, so that the pre-buried (for older buildings, if the wall of the building is thicker, a hole can be directly opened in the outer wall of the building, and bolts of suitable size can be implanted to connect the external energy-absorbing structure of the present invention; if the wall is thinner, it is necessary to first verify whether the old building structure can be externally mounted with the energy-absorbing structure. If not, it needs to be reinforced and then connected by drilling and implanting bolts.) The long bolts can smoothly pass through the external energy-absorbing structure in the main body D of the building, thereby realizing a firm connection between the external energy-absorbing structure and the main body D of the building. In addition, the longitudinal section of the external energy-absorbing structure of the present invention is horizontal or arc-shaped, so as to adapt to the main body D of the building with different shapes.

[0039] 2. The external energy absorption structure of the present invention has the characteristics of low cost and simple production, and the connection method is firm and reliable, which can effectively improve the impact resistance and explosion resistance of the building. Specifically, it is embodied in:

[0040] (1) The materials used in the present invention are mostly common materials in industrial production and are relatively cheap;

[0041] (2) The present invention can be prefabricated in a factory for large-scale industrial production. An automated production line can be used during the production process to reduce labor costs and improve production efficiency while ensuring quality.

[0042] (3) The present invention is connected to the building by using a cover plate and bolts. The cover plate is made of steel and is relatively cheap. The bolts are common fasteners in industrial production and are relatively cheap, and their quality can be guaranteed.

[0043] 3. When the building structure encounters impact or explosion load, the external energy-absorbing structure of the present invention can transfer the load relatively evenly (wherein, "evenly" represents the function of the composite plate when the energy-absorbing structure is subjected to local load; specifically, the double steel plate-concrete composite plate has high lateral stiffness, and under the action of local load, the deformation of the double steel plate-concrete composite plate is small; in addition, due to the presence of through bolts, the lateral displacement of the double steel plate-concrete composite plate in the energy-absorbing structure is limited. At the same time, the composite plate has a film stretching effect during the deformation process, which further limits the lateral deformation of the double steel plate-concrete composite plate.) to the square steel pipe (referring to a square steel pipe with a wall thickness of not more than 3.0 mm) of the foam filler below, so that more foam-filled thin-walled square steel pipes are deformed and more energy is dissipated; the embedded bolts on the building structure can pass through the holes on the hanging plate and the embedded sleeves inside the double steel plate-concrete composite plate; the area between the test pieces can be connected by a cover plate to eliminate the weak area. Therefore, the present invention can effectively reduce the energy acting on the main structure, thereby significantly improving the impact resistance of the building.

[0044] 4. In addition, the adaptability of the external energy-absorbing structure of the present invention enables it to be widely used in different types of building structures, whether it is a new construction project or the reinforcement and renovation of an existing building (for a new construction project, the bolts can be welded to the steel skeleton of the main structure before pouring, and then the concrete can be poured. After the concrete has been cured for 28 days, the energy-absorbing structure can be passed through the embedded bolts; for existing buildings, please refer to Article 1.), and it can be flexibly adapted. At the same time, the maintenance and replacement of the external energy-absorbing structure are also relatively simple, which facilitates the timely repair and update of the damaged parts, ensuring its long-term and stable protection effect.

[0045] 5. After the double steel plate-concrete composite slab A of the present invention is embedded with a sleeve, compared with the double steel plate-concrete composite slab without a sleeve embedded in the concrete slab A-2, the force principle is as follows:

[0046] When there are no through bolts in the double steel plate-concrete composite slab, the deformation mode of the component near the center under load is as follows: Fig.21 As shown, it is an overall bending deformation. Its resistance during deformation is mainly related to the overall bending stiffness of the component, and its boundary can be considered as a simply supported boundary condition.

[0047] When there are through bolts, such as Fig. 22As shown in the figure, it is equivalent to changing the boundary conditions of the component. The double steel plate-concrete composite slab changes from a simply supported boundary condition to an approximately fixed supported boundary condition. Under the same geometric dimensions and material parameters, it has greater lateral stiffness. In addition, under the action of the central load, since the through bolts limit the deformation of the component, the double steel plate-concrete composite slab will have a membrane tensile effect in addition to the overall bending deformation, thereby enhancing the lateral stiffness of the component to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of the external energy absorption structure of the present invention; Figure 2 yes Figure 1 Exploded view of double steel plate-concrete composite slab A; Figure 3 yes Figure 1 Schematic diagram of the structure of the Chinese steel tube body B; Figure 4 yes Figure 1 The main view of the middle hanging plate C;

[0049] Figure 5 It is a schematic diagram of the overall structure in which the external energy-absorbing structure is installed on the main body D of the building after forming a wall surface; Figure 6 is a schematic structural diagram of a cross-shaped cover plate E-1 of a cover plate assembly E; Figure 7 It is a schematic diagram of the structure of the T cover plate E-2 of the cover plate assembly E; Figure 8 It is a schematic structural diagram of the end right-angle cover plate E-4 of the cover plate assembly E; Fig. 9 It is a schematic structural diagram of the middle right-angle cover plate E-5 of the cover plate assembly E;

[0050] Fig.10 is a schematic diagram of the structure corresponding to step one; Fig.11 It is a schematic diagram of the structure corresponding to steps one and two; Fig.12 It is a schematic diagram of the structure corresponding to steps one and three; Fig.13 It is a structural schematic diagram corresponding to step one and four; Fig.14 It is a structural schematic diagram corresponding to step one and five; Fig.15 It is a structural diagram corresponding to step 16; Fig.16 It is a structural schematic diagram corresponding to step 17; Fig.17 It is a structural schematic diagram corresponding to step 18;

[0051] Fig.18 It is the structural schematic diagram corresponding to step 21; Fig.19 It is a structural schematic diagram corresponding to step 22; Fig. 20 It is the structural diagram corresponding to steps 2 and 3;

[0052] Fig.21 It is a schematic diagram of the force principle of the double steel plate-concrete composite plate when there are no through bolts; Fig. 22It is the force principle diagram of the double steel plate-concrete composite plate when the bolts are penetrated;

[0053] Fig.23 It is a schematic diagram of the structure of the L cover E-3 of the cover assembly E.

[0054] In the figure: A, double steel plate-concrete composite slab, A-1, upper steel plate, A-2, concrete slab, A-3, casing, A-4, side steel plate, A-5, lower steel plate,

[0055] B, square steel tube body, B-1, rectangular tube body, B-2, filler, B-3, plug ear,

[0056] C, hanging plate, D, building main body, E, cover plate assembly, E-1, cross-shaped cover plate, E-2, T cover plate, E-3, L cover plate, E-4, end right-angle cover plate, E-5, middle right-angle cover plate. DETAILED DESCRIPTION

[0057] Specific implementation method 1: Combination Figures 1 to 5 To illustrate this embodiment, this embodiment includes a hanging plate C, which also includes a double steel plate-concrete composite plate A and a plurality of square steel tube bodies B. The hanging plate C is a rectangular plate body, and through holes are opened on all four sides of the hanging plate C. The plurality of square steel tube bodies B are fixedly installed on the hanging plate C in a rectangular array. The upper parts of the plurality of square steel tube bodies B are inserted into the double steel plate-concrete composite plate A. The double steel plate-concrete composite plate A is embedded with a sleeve, and the sleeve is coaxially arranged with the through hole on the hanging plate C.

[0058] This embodiment realizes the connection with the main body of the building by means of a sleeve embedded in the double steel plate-concrete composite plate A. The whole connection method is simple, reliable and firm.

[0059] Specific implementation method 2: Combination Figure 3 To illustrate this embodiment, the square steel tube body B of this embodiment includes a rectangular tube body B-1 and a filler B-2. An inserting ear B-3 is relatively arranged on the upper part of the rectangular tube body B-1, and the filler B-2 is inserted into the rectangular tube body B-1.

[0060] With such arrangement, when the plug ears B-3 in this embodiment are actually used, the two plug ears B-3 pass upward through the lower steel plate A-5, can be welded or bent, and then poured with concrete, which can not only transmit power but also improve the impact resistance; the other components and connection relationships are the same as those in the specific implementation method one.

[0061] Specific implementation method three: Combination Figure 3 To illustrate this embodiment, the filler B-2 of this embodiment is glued to the rectangular tube body B-1, and a gap is left between the filler B-2 and the inner wall of the rectangular tube body B-1, and the gap is 0.8mm-2.5mm.

[0062] In this way, the gap between the filler B-2 and the rectangular tube B-1 in this embodiment is to allow the adhesive to be evenly filled between the rectangular tube B-1 and the filler B-2; after the filler B-2 is filled into the rectangular tube B-1, the deformation mode of the rectangular tube B-1 can be optimized, so that the rectangular tube B-1 has more plastic deformation areas during the deformation process, thereby improving the energy absorption capacity of the structure. Other components and connection relationships are the same as those in the first or second specific embodiments.

[0063] Specific implementation method four: Combination Figure 3 To explain this embodiment, the filler B-2 of this embodiment is a polymer foam or a metal foam. With such a configuration, when the filler in this embodiment is actually used, the appropriate foam can be selected according to different protection requirements and economic budget conditions; when the energy absorbing structure needs to face a high-temperature explosion or high-temperature impact environment, a metal foam can be selected as the filler; when the use environment of the energy absorbing structure does not involve high-temperature conditions, a polymer foam with better economic efficiency can be selected as the filler. Other components and connection relationships are the same as those of the first, second or third embodiments.

[0064] Specific implementation method five: Combination Figure 2 To illustrate this embodiment, the double steel plate-concrete composite plate A of this embodiment includes an upper steel plate A-1, a concrete plate A-2, a side steel plate A-4, a lower steel plate A-5 and a plurality of sleeves A-3. The plurality of sleeves A-3 are pre-buried in the concrete plate A-2, the concrete plate A-2 is embedded in the side steel plate A-4, and the upper steel plate A-1 and the lower steel plate A-5 are respectively covered on the upper end surface and the lower end surface of the concrete plate A-2.

[0065] In this way, A-1, side steel plate A-4 and lower steel plate A-5 in the double steel plate-concrete composite slab together form a casting template. The presence of side steel plate A-4 improves the integrity and lateral stiffness of the double steel plate-concrete composite slab; the presence of sleeve A-3 can reserve storage holes during the pouring of concrete, so that the embedded bolts can pass through the double steel plate-concrete composite slab; the presence of concrete plate A-2 improves the quality of the double steel plate-concrete composite slab, making the composite slab have greater inertia. Other components and connection relationships are the same as those of the first, second, third or fourth specific embodiments.

[0066] Specific implementation method six: Combination Figure 1 To explain this embodiment, the square steel tube body B and the hanging plate C of this embodiment are fixedly connected by plug welding.

[0067] In this way, the plug welding method can effectively ensure the reliable connection between the thin-walled square steel pipe and the hanging plate, and facilitate welding at various positions. Other components and connection relationships are the same as any one of the specific implementation methods 1 to 5.

[0068] Specific implementation method seven: Combination Figure 5 , Figure 6-Figure 9 and Fig.23 This embodiment is described, and this embodiment includes a cover plate assembly E and a plurality of external energy absorbing structures, which are assembled into a rectangular wall and then installed on the outer side wall of a building body D, and the cover plate assembly E is coated on the rectangular wall, and the cover plate assembly E is connected to the building body D through the external energy absorbing structure. Other components and connection relationships are the same as any one of the specific embodiments 1 to 6.

[0069] When the four sides of the building body D are all equipped with external energy absorption structures or two adjacent sides are equipped with external energy absorption structures, the cover plate assembly E includes a cross cover plate E-1, a T cover plate E-2, an end right-angle cover plate E-4 and a middle right-angle cover plate E-5.

[0070] The end right-angle cover plate E-4, at least one T cover plate E-2 and the end right-angle cover plate E-4 are installed in sequence from left to right to form the first row of cover plates; the middle right-angle cover plate E-5, at least one cross-shaped cover plate E-1 and the middle right-angle cover plate E-5 are installed in sequence from left to right to form the second row of cover plates to the N-1 row of cover plates; the end right-angle cover plate E-4, at least one T cover plate E-2 and the end right-angle cover plate E-4 are installed in sequence from left to right, and are arranged in a horizontal straight line mirror image with the first row of cover plates to form the Nth row of cover plates; the first row of cover plates, multiple second row of cover plates and Nth row of cover plates are sequentially covered on the rectangular wall from top to bottom;

[0071] Alternatively, when one of the four sides of the building body D has an external energy absorption structure, the cover plate assembly E includes a cross-shaped cover plate E-1, a T cover plate E-2 and an L cover plate E-3.

[0072] The L cover plate E-3, at least one T cover plate E-2 and another L cover plate E-3 are installed in sequence from left to right to form the first row of cover plates; the T cover plate E-2, at least one cross cover plate E-1 and another T cover plate E-2 are installed in sequence from left to right to form the second row of cover plates to the N-1th row of cover plates; the L cover plate E-3, at least one T cover plate E-2 and another L cover plate E-3 are installed in sequence from left to right, and are arranged in a horizontal straight line mirror manner with the first row of cover plates to form the Nth row of cover plates; the first row of cover plates, multiple second row cover plates and Nth row of cover plates are sequentially covered on the rectangular wall from top to bottom.

[0073] Specific implementation method eight: Combination Figures 1 to 20 To illustrate this embodiment, the embodiment includes the following steps:

[0074] Step 1: Make an external energy-absorbing structure:

[0075] Step 1: Cut the rectangular tube B-1, the upper steel plate A-1, the side steel plate A-4, the lower steel plate A-5, the plurality of sleeves A-3 and the filler B-2 into corresponding sizes;

[0076] Step 1-2: Weld the rectangular tube B-1 to the hanging plate C by plug welding;

[0077] Step 13: Fill the filler B-2 into the rectangular tube B-1;

[0078] Step 14: Weld the lower steel plate A-5 to the rectangular tube body B-1;

[0079] Step 15: Weld three side steel plates A-4 of the four side steel plates in the double steel plate-concrete composite plate B to the lower steel plate A-5, and weld the embedded casing A-3 to the lower steel plate A-5;

[0080] Step 16: Weld the upper steel plate A-1 of the double steel plate-concrete with the side steel plate A-4 and the rectangular tube B-1;

[0081] Step 17: Pour concrete, smooth it and sprinkle water for maintenance;

[0082] Step 18: Weld the fourth lateral steel plate A-4; the three lateral steel plates, the lower steel plate, and the upper steel plate together form a casting template, and the specimen is placed sideways for casting;

[0083] Step 2: Connect the external energy absorbing structure to the building body D:

[0084] Step 21: implanting pre-buried long bolts on the building body D, where the length of the long bolts is greater than the height of the external energy absorbing structure;

[0085] Step 22: Pass the pre-buried long bolt through the reserved hole on the external energy absorbing structure and the pre-buried sleeve A-3;

[0086] Step 23: According to the size of the building body D and the number of external energy absorbing structures used, different numbers of cover assemblies E are processed and the cover assemblies E are connected to the external energy absorbing structures. At this point, the installation of the external energy absorbing structure added to the building is completed.

[0087] With such arrangement, the manufacturing process of the energy absorbing structure has a strict sequence, and can be standardized and mass-produced in the factory, and can be produced by an automated production line with a high degree of intelligence; the connection method ensures the strength of the connection on the basis of ensuring the convenience of connection, and the existence of the cover plate eliminates the weak area between the two energy absorbing structures, so that the overall protection performance of the building is further improved. The other components and connection relationships are the same as any one of the specific implementation methods one to seven.

[0088] Specific implementation method nine: Combination Fig.13 To illustrate this embodiment, in step 1 to 4 of this embodiment, the lower steel plate A-5 and the rectangular tube body B-1 are connected by spot welding.

[0089] This arrangement prevents the filled foam from melting. Other components and connection relationships are the same as any one of the specific embodiments 1 to 8.

[0090] Specific implementation method ten: Combination Figure 5 To illustrate this embodiment, the external energy absorbing structure in step 1 of this embodiment has a longitudinal cross-section shape of a horizontal segment or an arc segment.

[0091] Such a configuration is applicable to building structures where bolts can be embedded on the outside of the building, regardless of curved surfaces or flat surfaces. When the facade of the building interface is a curved surface, the hanging plate, double steel plate-concrete composite plate and cover plate in the new energy absorption structure can be modified accordingly to be a corresponding curved surface. The other components and connection relationships are the same as any one of the specific implementation methods one to nine.

[0092] Combination Figures 1 to 22 The working principle of the present invention is described:

[0093] The present invention aims to propose a new type of external energy absorption structure to further improve the energy consumption capacity of the external energy absorption structure and reduce the production cost. The new type of external energy absorption structure proposed by the present invention is mainly composed of a double steel plate-concrete composite plate, a polymer foam or a metal foam filled thin-walled metal square steel pipe.

[0094] The external energy absorption structure proposed in the present invention comprises a double steel plate-concrete composite plate at the front of the structure, a thin-walled metal square steel pipe filled with polymer foam or metal foam in the middle, and a hanging plate at the rear. The main contents of the present invention are explained through the production process and connection and fixing process of the new external energy absorption structure:

[0095] (1) The manufacturing process of the external energy absorption structure: ① Cut the thin-walled square steel pipe, steel plate, polymer foam or metal foam into corresponding sizes; ② Weld the thin-walled square steel pipe to the hanging plate by plug welding. The plug welding method can effectively ensure the reliable connection between the thin-walled square steel pipe and the hanging plate, and facilitate welding at various positions; ③ Fill the foam into the thin-walled square steel pipe; ④ Weld the lower steel plate in the double steel plate-concrete composite plate to the thin-walled square steel pipe by spot welding to prevent the filled foam from melting; ⑤ Weld three of the four side steel plates in the double steel plate-concrete composite plate to the lower steel plate, and weld the embedded sleeve on the lower steel plate; ⑥ Weld the upper steel plate of the double steel plate-concrete to the side steel plate and the thin-walled square steel pipe; ⑦ Pour concrete, smooth it and sprinkle water for maintenance; ⑧ Weld the fourth side steel plate;

[0096] (2) Connection and fixing process of external energy absorption structure: ① embedding pre-buried bolts on the building structure, ② connecting the new external energy absorption structure with the building structure, wherein the pre-buried bolts on the building structure will pass through the reserved holes and pre-buried sleeves on the energy absorption structure, ③ processing different numbers of cross-shaped, T-shaped, L-shaped cover plates and right-angle folded plates according to the size of the building structure and the number of new external energy absorption structures used, and connecting the cover plates and folded plates with the energy absorption structure. After completing the above work, the work of adding a new external energy absorption structure to the building is completed, achieving a significant improvement in the impact and explosion resistance of the building structure.

[0097] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external energy absorbing structure, comprising a hanging plate (C), characterized in that: It also includes a double steel plate-concrete composite slab (A) and a plurality of square steel tube bodies (B). The hanging plate (C) is a rectangular plate body, and through holes are opened on all sides of the hanging plate (C). A plurality of square steel tube bodies (B) are fixedly installed on the hanging plate (C) in a rectangular array. The upper parts of the plurality of square steel tube bodies (B) are inserted into the double steel plate-concrete composite plate (A). A sleeve is embedded in the double steel plate-concrete composite plate (A), and the sleeve is coaxially arranged with the through holes on the hanging plate (C).

2. The external energy absorbing structure according to claim 1, characterized in that: The square steel tube body (B) comprises a rectangular tube body (B-1) and a filler (B-2). The upper part of the rectangular tube body (B-1) is relatively provided with plug-in ears (B-3), and the filler (B-2) is inserted into the rectangular tube body (B-1).

3. The external energy absorbing structure according to claim 2, characterized in that: The filler (B-2) is glued to the rectangular tube body (B-1), and a gap is left between the filler (B-2) and the inner wall of the rectangular tube body (B-1), and the gap is 0.8mm-2.5mm.

4. The external energy absorbing structure according to claim 3 is characterized in that: The filler (B-2) is polymer foam or metal foam.

5. The external energy absorbing structure according to claim 1, characterized in that: The double steel plate-concrete composite slab (A) includes an upper steel plate (A-1), a concrete slab (A-2), a side steel plate (A-4), a lower steel plate (A-5) and a plurality of casings (A-3). A plurality of sleeves (A-3) are embedded in the concrete slab (A-2), the concrete slab (A-2) is embedded in the side steel plate (A-4), and the upper steel plate (A-1) and the lower steel plate (A-5) are respectively covered on the upper end surface and the lower end surface of the concrete slab (A-2).

6. The external energy absorbing structure according to claim 1, characterized in that: The square steel tube body (B) and the hanging plate (C) are fixedly connected by plug welding.

7. An external wall using the external energy absorption structure according to any one of claims 1 to 6, characterized in that: It includes a cover assembly (E) and multiple external energy absorbing structures. The multiple external energy absorbing structures are assembled into a rectangular wall and then installed on the outer wall of the building body (D). The cover assembly (E) is wrapped on the rectangular wall, and the cover assembly E is connected to the building body (D) through the external energy absorbing structure.

8. The external wall according to claim 7, characterized in that: When the four sides of the building body (D) are all equipped with external energy absorption structures or two adjacent sides are equipped with external energy absorption structures, the cover plate assembly (E) includes a cross cover plate (E-1), a T cover plate (E-2), an end right-angle cover plate (E-4) and a middle right-angle cover plate (E-5). The end right-angle cover plate (E-4), at least one T cover plate (E-2) and the end right-angle cover plate (E-4) are installed in sequence from left to right to form the first row of cover plates; the middle right-angle cover plate (E-5), at least one cross-shaped cover plate (E-1) and the middle right-angle cover plate (E-5) are installed in sequence from left to right to form the second row of cover plates to the N-1 row of cover plates; the end right-angle cover plate (E-4), at least one T cover plate (E-2) and the end right-angle cover plate (E-4) are installed in sequence from left to right and arranged in a horizontal straight line mirror image with the first row of cover plates to form the Nth row of cover plates; the first row of cover plates, multiple second row of cover plates and the Nth row of cover plates are sequentially covered on the rectangular surface wall from top to bottom; Alternatively, when one of the four sides of the building body (D) has an external energy absorption structure, the cover plate assembly (E) includes a cross-shaped cover plate (E-1), a T cover plate (E-2), and an L cover plate (E-3). The L cover plate (E-3), at least one T cover plate (E-2) and another L cover plate (E-3) are installed in sequence from left to right to form the first row of cover plates; the T cover plate (E-2), at least one cross cover plate (E-1) and another T cover plate (E-2) are installed in sequence from left to right to form the second row of cover plates to the N-1 row of cover plates; the L cover plate (E-3), at least one T cover plate (E-2) and another L cover plate (E-3) are installed in sequence from left to right, and are arranged in a horizontal straight line mirror manner with the first row of cover plates to form the Nth row of cover plates; the first row of cover plates, multiple second row cover plates and Nth row of cover plates are sequentially covered on the rectangular wall from top to bottom.

9. A method for installing the external wall according to claim 8, characterized in that: It includes the following steps: Step 1: Make an external energy-absorbing structure: Step 1: Cut the rectangular tube (B-1), the upper steel plate (A-1), the side steel plate (A-4), the lower steel plate (A-5), the plurality of sleeves (A-3) and the filler (B-2) into corresponding sizes; Step 1-2: Weld the rectangular tube (B-1) to the hanging plate (C) by plug welding; Step 13: Fill the filler (B-2) into the rectangular tube (B-1); Step 14: Weld the lower steel plate (A-5) to the rectangular tube (B-1); Step 15: Weld three of the four side steel plates (A-4) in the double steel plate-concrete composite plate (B) to the lower steel plate (A-5), and weld the embedded sleeve (A-3) to the lower steel plate (A-5); Step 16: Weld the upper steel plate (A-1) of the double steel plate-concrete with the side steel plate (A-4) and the rectangular tube (B-1); Step 17: Pour concrete, smooth it and sprinkle water for maintenance; Step 18: Weld the fourth lateral steel plate (A-4); Step 2: Connect the external energy absorbing structure to the main body of the building (D): Step 21: implanting pre-buried long bolts on the building body (D), wherein the length of the long bolts is greater than the height of the external energy absorbing structure; Step 22: Pass the pre-buried long bolts through the reserved holes and pre-buried sleeves (A-3) on the external energy absorbing structure; Step 23: According to the size of the building body (D) and the number of external energy-absorbing structures used, different numbers of cover assemblies (E) are processed, and the cover assemblies (E) are connected to the external energy-absorbing structures. At this point, the installation of the external energy-absorbing structure added to the building is completed.

10. The method for installing an external wall according to claim 8, characterized in that: The lower steel plate (A-5) and the rectangular tube (B-1) in step 1-4 are connected by spot welding.

Images