CN107119814A - External thermal insulation in-line combined wall and the practice with lead pipe coarse sand energy-dissipating and shock-absorbing key - Google Patents

Abstract

The invention discloses an external thermal insulation inline composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing keys and a method thereof, belonging to the field of building energy-saving and anti-seismic technology. One-shaped composite wall panels are mainly composed of recycled concrete wall panels, EPS insulation modules, PVC pipes, lead pipes-coarse sand energy dissipation and shock absorption keys, lead pipes, coarse sand, galvanized thin steel sheet cover plates, and bolts. The lead pipe-coarse sand energy dissipation and shock absorption key is used, and it is assembled in the PVC pipe with holes reserved in the upper and lower composite wallboards when the upper and lower composite wallboards are assembled. The inline composite wall has two anti-seismic defense lines and has good energy dissipation and shock absorption performance. The invention overcomes the deficiencies of the poor anti-seismic ability of the prefabricated concrete wall, and organically combines the invented lead pipe-coarse sand shock-absorbing control device with the newly constructed prefabricated composite wall to form an integrated anti-seismic, energy-saving and fire-proof wall body. At the same time, the composite wall utilizes recycled concrete materials, which is conducive to the development of construction waste resources and has obvious environmental benefits.

Description

Inline-shaped composite wall with external thermal insulation with lead pipe-coarse sand energy dissipation and shock absorption key and its method

technical field

The invention relates to an external thermal insulation inline composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing keys and a method thereof, belonging to the technical field of building energy-saving and shock-resistance.

Background technique

(1) my country has a vast territory and a large population. Most of the buildings are located in the earthquake zone, and some of them are mainly self-built. Due to the lack of knowledge about earthquake resistance, the construction technology cannot meet the basic requirements for earthquake resistance, and the earthquake resistance is very weak. The Tangshan, Wenchuan, Yushu, and Ya'an earthquakes caused severe house damage and collapse. Research and development of low-cost, easy-to-operate, and practical assembled anti-seismic and energy-saving integrated structures meet the major needs of national development.

(2) The thermal insulation performance of the house wall is poor. In the cold winter season, heating consumes a lot of energy, and the indoor thermal environment and comfort are poor; in the hot summer season, cooling appliances are used, which consumes a lot of power. The development of low-energy-consumption assembled anti-seismic and energy-saving integrated structures has been highly valued by the state and generally concerned by the society.

(3) The durability and overall seismic performance of traditional multi-layer masonry structures are generally poor. However, the high-rise residential shear wall structure has the problems of high cost, thick wall and difficult promotion due to the limitation of wall thickness and complex reinforcement structure. In addition, the research and development of modular structure systems and industrialized construction technologies is a huge demand for the construction and development of low-rise and multi-storey structures. The application of ecological and environmentally friendly building materials in housing structures is a strategic demand for sustainable development. Based on this, the present invention proposes a low energy consumption, easy to construct, replaces the whole concrete wall with EPS (polystyrene foam) external insulation, replaces ordinary concrete with recycled concrete, is suitable for construction waste recycling, and uses light wall Recycled concrete replaces traditional clay bricks, integrates energy conservation and earthquake resistance, and is suitable for the development of new structural systems for earthquake resistance and energy conservation of low-rise buildings.

Contents of the invention

The purpose of the present invention is to provide an external thermal insulation inline composite wall with the advantages of simple operation, strong practicability, environmental protection, earthquake resistance and energy saving, and assembly-like construction and its method, in order to effectively Solve the problems of low seismic energy consumption capacity, poor thermal insulation performance and slow construction speed of traditional brick buildings.

To achieve the above object, the present invention adopts the following technical solutions:

An external thermal insulation inline composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing keys, the inline composite wall is assembled from two or more upper and lower inline composite wall panels; the inline composite wall is composed of Recycled concrete wallboard 1, EPS (polystyrene foam) insulation module 2, PVC pipe 3, lead pipe-coarse sand energy-dissipating and shock-absorbing key 4 are combined and assembled, and the lead pipe-coarse sand energy-dissipating and shock-absorbing key 4 is composed of lead pipe 5 with good plastic deformation energy dissipation and shock absorption performance, coarse sand 6 with good friction energy dissipation and shock absorption performance, galvanized thin steel sheet cover plate 7 and bolts 8.

The lead pipe-coarse sand energy-dissipating and shock-absorbing key 4 is filled with coarse sand 6 with a particle size of 2mm-5mm in the lead pipe 5, and the upper and lower ends of the lead pipe 5 are sealed by using a galvanized thin steel sheet cover plate 7 , and tighten with bolt 8. The lead pipe-coarse sand energy dissipation and shock absorption key 4 is embedded in the PVC pipe 3.

The recycled concrete wall panel 1 is a single-row reinforced recycled concrete wall panel, which is located inside the EPS insulation module 2, which is not only conducive to stress, but also protects the EPS insulation module, and also plays a role in fire prevention.

The EPS insulation module 2 is used as the outer insulation layer of the recycled concrete wallboard 1, and the surface of the EPS insulation module 2 is provided with evenly distributed dovetail grooves, which is conducive to pouring recycled concrete after molding, and the EPS insulation module 2 and the recycled concrete wallboard inside 1 After the mechanical occlusal connection is made, the in-line wall for external thermal insulation is formed. The EPS heat preservation modules 2 are provided with tongue and groove around them to facilitate the splicing between the EPS heat preservation modules 2, so that the small EPS heat preservation modules 2 are occluded and spliced into large EPS heat preservation templates.

The PVC pipe 3 is nested in the reserved hole of the recycled concrete wallboard 1 for placing the lead pipe-coarse sand energy dissipation and shock absorption key 4 .

The reserved holes are evenly arranged in the rebate of the recycled concrete wall panel 1 .

The recycled concrete wall panel 1 is composed of recycled concrete and a single row of reinforced steel wire mesh, wherein the diameter of the recycled concrete coarse aggregate particle is 5mm-10mm; the specification of the recycled concrete wallboard: the length is 600mm-6000mm, and the length modulus is 300mm ;The section height is 300mm-1500mm, the height modulus is 100mm; the thickness is 30mm-60mm, the thickness modulus is 10mm; The joints are sealed with cement mortar; the inner surface of recycled concrete wall panels is made of plastering mortar with a thickness of 5 mm to 10 mm as a protective surface layer; grooves are provided around recycled concrete wall panels to facilitate wall assembly.

The EPS thermal insulation module 2 is used as the outer thermal insulation layer of the recycled concrete wall panel, which enhances the thermal insulation capacity of the house; the EPS thermal insulation module is also used as the external formwork of the recycled concrete wall panel, and the inner recycled concrete wall panel is configured with a single row of reinforced steel wire mesh , the broken bridge key made of engineering plastics passes through the EPS insulation module, and fixes the inner single-row steel wire mesh. Mechanical occlusal; EPS thermal insulation modules are provided with tongue and groove around them, which is convenient for assembling small-sized EPS thermal insulation modules into large-sized EPS thermal insulation templates. 100mm; in order to prevent dust, sundries and accumulated water from entering the EPS insulation module and the rebate of the recycled concrete wall panel when the upper and lower glyph composite wall panels are assembled, the EPS insulation module of the lower assembly wall panel and the upper rebate of the recycled concrete wall panel It should be a convex groove, and the groove at the lower end of the corresponding part of the assembled upper wallboard should be a groove.

The PVC pipe 3 is inserted into the reserved hole of the recycled concrete wallboard, and a lead pipe-coarse sand energy-dissipating shock-absorbing key 4 is placed in the PVC pipe 3, and the PVC pipe 3 prevents the recycled concrete wallboard 1 from being cut during the shearing process. Local damage occurs at the reserved hole.

Lead pipe - galvanized thin steel plate cover plate 7 in the coarse sand energy dissipation and shock absorption key 4 is the same as the outer diameter of the lead pipe, which is 40mm to 80mm; the height is not less than the depth of the PVC pipe in the reserved hole of the upper and lower wall panels at the assembly joint and not less than 100mm. The lead pipe-coarse sand energy dissipation and shock absorption key spacing is 300mm-1500mm, and the modulus is 100mm.

The method of the above-mentioned external thermal insulation inline composite wall with lead pipe-coarse sand energy dissipation and shock absorption key is made as follows:

Step 1: Use the EPS thermal insulation module as the thermal insulation board and also as the outer formwork for pouring recycled concrete wall panels, and fix a single row of reinforced steel wire mesh inside it. The grid spacing of the steel wires is 50mm-100mm, and the diameter of the steel wires is 1.0mm. -1.2mm, after the recycled concrete is poured, it forms a mechanical engagement with the dovetail groove on the surface of the EPS insulation module.

Step 2: Insert a PVC pipe with the same diameter and depth into the reserved hole of the recycled concrete wall panel.

Step 3: Pour coarse sand into the lead pipe, cover the upper and lower ends of the lead pipe with galvanized thin steel sheet cover plates, and tighten the bolts to form a lead pipe-coarse sand energy dissipation and shock absorption key.

Step 4: Place the lead pipe-coarse sand energy-dissipating and shock-absorbing key in the PVC pipe in the reserved hole, and the assembly gap is bonded with epoxy resin.

Step 5: Apply 5-10mm thick plastering mortar on the inner surface of the recycled concrete wall panel as a protective surface layer.

Step 6: After the wall is assembled, seal it with cement mortar at the joint angle of the recycled concrete wall panel.

Compared with the prior art, it has the following advantages:

(1) High level of industrialization. The assembled external thermal insulation inline composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing keys of the present invention is suitable for low and multi-storey buildings. The lead pipe-coarse sand energy-dissipating and shock-absorbing key, the EPS thermal insulation module, and its assembled lightweight wall panels are factory-produced, and assembled on site into a lightweight, thermal, seismic, and energy-saving integrated wall, with high production efficiency and good quality.

(2) Utilize recycled concrete, an environmentally friendly building material with a large amount and a wide range, which saves resources and is conducive to sustainable development.

(3) Integration of heat preservation, earthquake resistance, energy saving and fire prevention. The outer insulation layer of the lightweight wall of the present invention is an EPS module, and the inner side is a recycled concrete wallboard, which is lighter in weight than a solid concrete wall and better in seismic performance than a brick wall. The EPS thermal insulation module is used as the external thermal insulation layer of the lightweight wall, which can significantly improve the thermal insulation effect of the wall. The recycled concrete wall inside the EPS insulation board can not only protect the EPS module, but also play a fireproof role, and the durability is also good.

(4) The wall has two anti-seismic defense lines, which have good energy dissipation and shock absorption performance. After the lead pipe-coarse sand energy-dissipating and shock-absorbing key is arranged between the upper and lower assembled wall panels, the assembled wall has multiple anti-seismic defense lines as a whole. The first line of anti-seismic defense, under small earthquakes, due to the bonding effect of cement mortar between the assembly gaps of the recycled concrete wall panels between the assembled upper and lower wall panels, there will be no misalignment between the upper and lower assembled wall panels, and the assembled The wall is in a state of overall stress, with high lateral rigidity, small horizontal lateral displacement of the wall, and the wall is basically in a state of elastic deformation under small earthquakes; the second anti-seismic defense line, under moderate earthquakes or large earthquakes, assembled upper and lower The bonding effect of the cement mortar between the assembly gaps of the recycled concrete wall panels between the wall panels is damaged, and the upper and lower assembled wall panels begin to move. The force stiffness decreases and the structural period becomes longer. After the period becomes longer, the seismic action decreases correspondingly, but the horizontal lateral movement of the wall is relatively large. At this time, the lead pipe-coarse sand energy dissipation and shock absorption key begins to play an important role. 1. The role of the displacement development of the lower assembled wallboard. The second is the energy dissipation and shock absorption under repeated horizontal earthquakes. The lead pipe mainly dissipates energy and shock through plastic deformation, and the coarse sand mainly dissipates energy and shock through friction.

(6) Easy to transport and install. The prefabricated components adopted by the invention are light in weight and convenient in transportation and installation.

(7) Significantly reduce the wetness of pouring concrete on the construction site, reduce the time required for concrete on-site maintenance, and speed up the construction progress. Adopting the assembled external thermal insulation in-line composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing keys proposed by the present invention reduces formwork projects, concrete cast-in-place projects, etc., saves resources, saves labor, reduces management costs, and ensures project quality.

Description of drawings

Fig. 1 is an elevation view of an external thermal insulation inline composite wall with a lead pipe-coarse sand energy dissipation and shock absorption key;

Fig. 2 is a partial diagram of an external thermal insulation inline composite wall with a lead pipe-coarse sand energy dissipation and shock absorption key;

Fig. 3 is the elevation view of the lead pipe-coarse sand energy dissipation and shock absorption key;

Fig. 4 is the overall assembly drawing of the external thermal insulation inline composite wall with lead pipe-coarse sand energy dissipation and shock absorption key;

Fig. 5 is the EPS thermal insulation module with single-row reinforced steel mesh;

Figure 6.1 is the occlusal-bonding cross-section 1 of the in-line composite wall for external thermal insulation with lead pipe-coarse sand energy-dissipating and shock-absorbing keys.

Figure 6.2 is the occlusal-bonding cross-section 2 of the in-line composite wall for external thermal insulation with lead pipe-coarse sand energy-dissipating and shock-absorbing keys.

In the figure: 1. Recycled concrete wall panel, 2. EPS insulation module, 3. PVC pipe, 4. Lead pipe-coarse sand energy dissipation and shock absorption key, 5. Lead pipe, 6. Coarse sand, 7. Galvanized thin steel Sheet cover plate, 8, bolts.

detailed description

The present invention will be further described below in combination with specific implementation examples.

As shown in Fig. 1, the external thermal insulation in-line composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing key of the present invention, the wall structure includes recycled concrete wallboard 1, EPS thermal insulation module 2, PVC pipe 3, lead Pipe-coarse sand energy dissipation and shock absorption key 4, lead pipe 5, coarse sand 6, galvanized thin steel sheet cover plate 7, bolt 8.

in particular:

The recycled concrete wall panel 1 is composed of recycled concrete and a single row of reinforced steel wire mesh, wherein the diameter of the recycled concrete coarse aggregate particle is 5mm-10mm; the specification of the recycled concrete wall panel 1: the length is 600mm-6000mm, and the length modulus is 300mm; the height of the section is 300mm-1500mm, the height modulus is 100mm; the thickness is 30mm-60mm, the thickness modulus is 10mm; the joint edge of recycled concrete wall panel 1 has a 45° slope angle, and the slope angle side length is 3mm-5mm, The assembly joints are sealed with cement mortar; the inner surface of the recycled concrete wall panel 1 uses plastering mortar with a thickness of 5 mm to 10 mm as a protective surface layer; the recycled concrete wall panel 1 is provided with grooves around it to facilitate wall assembly.

The EPS thermal insulation module 2 is used as the outer thermal insulation layer of the recycled concrete wall panel 1, which enhances the thermal insulation capacity of the house; the EPS thermal insulation module 2 also serves as the outer formwork of the inner recycled concrete wall panel 1, and the inner recycled concrete wall panel 1 is configured with a single row Reinforcement wire mesh, broken bridge keys made of engineering plastics pass through the EPS insulation module 2 to fix the inner single row of reinforcement wire mesh. The recycled concrete wall panels 1 form a mechanical joint; the EPS insulation module 2 is provided with grooves around it, which is convenient for assembling small-sized EPS insulation modules into large-sized EPS insulation templates. . The thickness of EPS insulation module 2 is 60mm-100mm; in order to prevent dust, sundries and accumulated water from entering the reclaimed concrete wallboard 1 and EPS insulation module 2 when the upper and lower glyph composite wallboards are assembled, the recycled concrete in the lower assembly wallboard The grooves at the upper ends of the wallboard 1 and the EPS insulation module 2 should be convex grooves, and the grooves at the lower ends of the corresponding parts of the assembled upper wallboard should be grooves.

The PVC pipe 3 is inserted into the reserved hole of the recycled concrete wallboard 1, and a lead pipe-coarse sand energy-dissipating shock-absorbing key 4 is placed in the PVC pipe 3, and the PVC pipe 3 can prevent the recycled concrete wallboard 1 from shearing. Partial damage occurs at the reserved holes during the process.

The lead pipe-coarse sand energy-dissipating and shock-absorbing key 4 is filled with coarse sand 6 with a particle size of 2mm-5mm in the lead pipe 5, and the upper and lower ends of the lead pipe 5 are sealed by using a galvanized thin steel sheet cover plate 7 , and tighten with bolt 8. The lead pipe-coarse sand energy-dissipating and shock-absorbing key 4 is inserted into the PVC pipe 3 in the hole reserved in the recycled concrete wallboard 1 . Lead pipe-coarse sand energy dissipation shock absorption key 4 galvanized thin steel plate cover plate 7 is the same as the outer diameter of the lead pipe, which is 40mm-80mm; the height is not less than the sum of the depths of the upper and lower wallboard PVC pipes 3 at the assembly joint, And not less than 100mm. Lead pipe-coarse sand energy-dissipating and shock-absorbing keys 4 have an interval of 300mm to 1500mm and a modulus of 100mm.

Its production method is as follows:

Step 1: Use the EPS thermal insulation module 2 as the thermal insulation board and also as the external formwork for the pouring of the recycled concrete wall panel 1, and fix a single row of reinforced steel wire mesh inside it. The grid spacing of the steel wires is 50mm-100mm, and the diameter of the steel wires is 1.0mm-1.2mm, after the recycled concrete is poured, it forms a mechanical engagement with the dovetail groove on the surface of the EPS insulation module 2.

Step 2: Insert a PVC pipe 3 with the same diameter and depth in the reserved hole of the recycled concrete wall panel 1 .

Step 3: Pour coarse sand 6 into the lead pipe 5, cover the upper and lower ends of the lead pipe with galvanized thin steel sheet cover plate 7, and tighten the bolt 8 to form the lead pipe-coarse sand energy dissipation and shock absorption key 4.

Step 4: Place the lead pipe-coarse sand energy-dissipating and shock-absorbing key 4 in the PVC pipe 3 nested in the reserved hole of the recycled concrete wall panel 1, and the assembly gap is bonded with epoxy resin.

Step 5: Apply 5-10 mm thick plastering mortar on the inner surface of the recycled concrete wall panel 1 as a protective surface layer.

Step 6: After the wall is assembled, seal it with cement mortar at the joint angle of the recycled concrete wall panel.

The lead pipe-coarse sand energy-dissipating and shock-absorbing key, EPS insulation module, and its assembled light-weight wall panels are factory-produced, and assembled on-site into a light-weight, thermal insulation, earthquake-resistant and energy-saving integrated wall, with high production efficiency and good quality; The use of recycled concrete, a large amount of environmentally friendly building materials, saves resources and is conducive to sustainable development. The overall structure realizes the characteristics of integration of heat preservation, earthquake resistance, energy saving and fire prevention.

The purpose of the present invention is to provide an external thermal insulation inline composite wall with the advantages of simple operation, strong practicability, environmental protection, earthquake resistance and energy saving, and assembly-like construction and its method, in order to effectively Solve the problems of low seismic energy consumption capacity, poor thermal insulation performance and slow construction speed of traditional brick buildings.

The above is a typical implementation case of the present invention, and the implementation of the present invention is not limited thereto.

Claims (7)

1. The in-line composite wall for external thermal insulation with lead pipe-coarse sand energy-dissipating and shock-absorbing keys is characterized in that the in-line composite wall is assembled from two or more upper and lower in-line composite wall panels; The one-shaped composite wallboard is composed of recycled concrete wallboard (1), EPS insulation module (2), PVC pipe (3), lead pipe-coarse sand energy dissipation and shock absorption key (4), and the lead pipe- The coarse sand energy dissipation and shock absorption key (4) is composed of a lead pipe (5) with good energy dissipation and shock absorption performance in plastic deformation, coarse sand with good friction energy dissipation and shock absorption performance (6), and a galvanized thin steel sheet cover plate (7 ) and bolts (8); The lead pipe-coarse sand energy-dissipating and shock-absorbing key (4) is filled with coarse sand (6) with a particle size of 2mm-5mm in the lead pipe (5), and the lead pipe is closed by using a galvanized thin steel sheet cover plate (7). (5) The upper and lower ends are capped and sealed, and bolts (8) are used to tighten them; the lead pipe-coarse sand energy dissipation and shock absorption key (4) is embedded in the PVC pipe (3); The recycled concrete wallboard (1) is a single-row reinforced recycled concrete wallboard, located inside the EPS thermal insulation module (2), which is not only conducive to stress, but also protects the EPS thermal insulation module, and also plays a role in fire prevention; The EPS thermal insulation module (2) is used as the outer thermal insulation layer of the recycled concrete wallboard (1), and the surface of the EPS thermal insulation module (2) is provided with evenly distributed dovetail grooves, which is conducive to pouring the recycled concrete after molding, and the EPS thermal insulation module (2 ) and the recycled concrete wallboard (1) on the inner side are mechanically occluded and connected to form an external thermal insulation inline wall; EPS thermal insulation modules (2) are provided with grooves around to facilitate splicing between EPS thermal insulation modules (2), The small EPS insulation modules (2) are occluded and spliced into a large EPS insulation template; The PVC pipe (3) is nested in the reserved hole of the recycled concrete wallboard (1), and is used for placing the lead pipe-coarse sand energy-dissipating and shock-absorbing key (4). 2. According to claim 1, the external thermal insulation in-line composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing keys is characterized in that: the reserved holes are evenly arranged in the recycled concrete wall board (1) in the recycled concrete wall the top of the plate (1). 3. The external thermal insulation inline composite wall with lead pipe-coarse sand energy dissipation and shock absorbing keys according to claim 1, characterized in that: the recycled concrete wallboard (1) is made of recycled concrete and single row Composed of reinforced steel wire mesh, the diameter of recycled concrete coarse aggregate particles is 5mm-10mm; the specifications of recycled concrete wall panels: length 600mm-6000mm, length modulus 300mm; section height 300mm-1500mm, height modulus 100mm; thickness 30mm-60mm, the thickness modulus is 10mm; the joint edge of the recycled concrete wall panel has a slope angle of 45°, and the side length of the slope angle is 3mm-5mm, and the joint is sealed with cement mortar; the inner surface of the recycled concrete wall panel 5mm-10mm thick plastering mortar is used as the protective surface layer; there are grooves around the recycled concrete wall panels to facilitate wall assembly. 4. The external thermal insulation inline composite wall with lead pipe-coarse sand energy dissipation and shock absorption key according to claim 1, characterized in that: the EPS thermal insulation module (2) is used as the external thermal insulation layer of recycled concrete wallboard, The thermal insulation capacity of the house is enhanced; the EPS thermal insulation module is also used as the outer formwork of the recycled concrete wall panel, and the inner recycled concrete wall panel is equipped with a single row of reinforced steel wire mesh, and the broken bridge key made of engineering plastic passes through the EPS thermal insulation module. The inner single row of reinforced steel wire mesh is fixed. During the process of pouring recycled concrete, the dovetail groove on the surface of the EPS insulation module and the recycled concrete wallboard of the in-line composite wallboard form a mechanical engagement; Large-sized EPS thermal insulation modules are assembled into large-sized EPS thermal insulation templates, and the EPS thermal insulation modules are tightly occluded through the tongue and groove at the assembling seams; the thickness of the EPS thermal insulation modules is 60mm-100mm; in order to prevent dust when the upper and lower glyph composite wall panels are assembled , sundries and accumulated water enter the EPS insulation module and recycled concrete wall panels, the upper grooves of the EPS insulation modules of the lower assembled wall panels and the recycled concrete wall panels should be convex grooves, and the lower end grooves of the corresponding parts of the assembled upper wall panels The mouth should be a groove. 5. The external thermal insulation in-line composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing keys according to claim 1, characterized in that: the PVC pipe (3) is inserted into the reserved part of the recycled concrete wallboard In the hole, place the lead pipe-coarse sand energy-dissipating and shock-absorbing key (4) in the PVC pipe (3), and the PVC pipe (3) prevents the recycled concrete wallboard (1) from being partially damaged in the reserved hole during the shearing process . 6. The external thermal insulation inline composite wall with lead pipe-coarse sand energy-dissipating and shock-absorbing key according to claim 1, characterized in that: the lead pipe-coarse sand energy-dissipating and shock-absorbing key (4) is galvanized thin The outer diameter of the steel plate cover (7) is the same as that of the lead pipe, which is 40mm to 80mm; the height is not less than the sum of the depth of the PVC pipe in the holes reserved for the upper and lower wall panels at the assembly joint, and is not less than 100mm; the lead pipe-coarse sand The interval between the energy dissipation and shock absorption keys is 300mm to 1500mm, and the modulus is 100mm. 7. The method of using the external thermal insulation in-line composite wall with lead pipe-coarse sand energy dissipation and shock absorption keys according to claim 1, characterized in that: the first step: the EPS thermal insulation module is used as a thermal insulation board and used as recycled concrete The outer formwork of the wall panel is fixed with a single row of reinforced steel wire mesh on the inner side. The grid spacing of the steel wires is 50mm-100mm, and the diameter of the steel wires is 1.0mm-1.2mm. The dovetail groove constitutes a mechanical engagement; Step 2: Insert a PVC pipe with the same diameter and depth into the reserved hole of the recycled concrete wall panel; Step 3: Pour coarse sand into the lead pipe, cover the upper and lower ends of the lead pipe with galvanized thin steel sheet cover plates, and tighten the bolts to form a lead pipe-coarse sand energy dissipation and shock absorption key; Step 4: Place the lead pipe-coarse sand energy-dissipating and shock-absorbing key in the PVC pipe in the reserved hole, and the assembly gap is bonded with epoxy resin; Step 5: Apply 5-10mm thick plastering mortar on the inner surface of the recycled concrete wall panel as a protective surface layer; Step 6: After the wall is assembled, seal it with cement mortar at the joint angle of the recycled concrete wall panel.