Weather-resistant steel concrete wall structure

Abstract

The weather-resistant steel concrete wall structure comprises a first wall, a steel cup, a second wall, a steel plate, an anchoring sleeve and a bolt, the steel cup is fixedly connected to one end of the first wall, a containing groove and a positioning groove are formed in the end, away from the first wall, of the steel cup, the positioning groove is formed in the periphery of the containing groove, and the steel plate is fixedly connected to one end of the second wall; the end, away from the second wall body, of the steel plate is fixedly connected with a positioning ring, the positioning ring is embedded into the positioning groove, a filling cavity is defined by the steel cup and the steel plate, a grouting opening and a grout outlet are formed in the outer wall of the steel cup and communicate with the filling cavity, the filling cavity is used for being filled with ultra-high-performance concrete, and the steel cup and the steel plate are both made of weathering steel. The steel cup is provided with a penetrating opening, the axis of the penetrating opening is perpendicular to the first wall, the anchoring sleeve is coaxially and fixedly connected to the inner wall of the penetrating opening, and the bolt is in threaded connection to the inner wall of the anchoring sleeve. When the first wall body and the second wall body are assembled, the positioning rings are embedded in the positioning grooves, and the assembling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to a weathering steel concrete wall structure. Background Art

[0002] In recent years, with the rapid development of my country's construction industry and the continuous advancement of urbanization, the high energy consumption, high pollution and low efficiency of the traditional cast-in-place construction mode have become increasingly prominent. In this context, prefabricated buildings have gradually become an important direction for the transformation and upgrading of the construction industry due to their standardized design, factory production, assembly construction and information management.

[0003] At present, in the field of prefabricated buildings, the construction process of precast concrete walls mainly includes the following links: reserved steel bars in the foundation; steel bar correction; precast wall hoisting and positioning; node connection and grouting; joint treatment and maintenance.

[0004] Among them, steel bar correction relies on manual operation, and the accuracy is greatly affected by the workers' experience. When installing prefabricated walls, it is necessary to use a mirror to repeatedly observe whether the steel bars are aligned with the installation holes on the prefabricated walls, and the overall assembly efficiency is low. Summary of the invention

[0005] In order to improve the assembly efficiency of the wall, the present application provides a weathering steel concrete wall structure.

[0006] The weathering steel concrete wall structure provided in this application adopts the following technical solution: A weathering steel concrete wall structure comprises a first wall, a steel cup, a second wall, a steel plate, an anchor sleeve and a bolt, the steel cup being fixedly connected to one end of the first wall, the end of the steel cup facing away from the first wall being provided with a receiving groove and a positioning groove, the positioning groove being provided on the outer periphery of the receiving groove, the steel plate being fixedly connected to one end of the second wall, the end of the steel plate facing away from the second wall being fixedly connected with a positioning ring, the positioning groove being used for the positioning ring to be embedded, the steel cup and the steel plate together enclose a filling cavity, the outer wall of the steel cup being provided with a grouting port and a grouting outlet, the grouting port and the grouting outlet being both connected to the filling cavity, the filling cavity being used to fill ultra-high performance concrete, the materials of the steel cup and the steel plate being both set to weathering steel, the steel cup being provided with a through-opening, the axis of the through-opening being perpendicular to the first wall, the through-opening passing through the steel cup, the anchor sleeve being coaxially fixedly connected to the inner wall of the through-opening, and the bolt being threadedly connected to the inner wall of the anchor sleeve.

[0007] By adopting the above technical solution, when the first wall and the second wall are assembled, the positioning ring is embedded in the positioning groove to improve the assembly efficiency. Weathering steel is a low-alloy steel that forms a dense oxide rust layer on the surface to prevent further corrosion. Ultra-high performance concrete is a fiber-reinforced high-strength, high-toughness cement-based material with an outer layer of weathering steel and an inner layer of UHPC. The anchor sleeve synergizes the force to improve the wall connection strength.

[0008] Preferably, one end of the steel cup facing away from the accommodating groove is fixedly connected with a first bolt, and the first bolt is pre-buried inside the first wall.

[0009] By adopting the above technical solution, the first bolt is embedded in the first wall, and prefabrication in advance reduces on-site operations and improves assembly efficiency. The first bolt improves the connection strength between the steel cup and the first wall, and improves the overall strength of the wall.

[0010] Preferably, a second bolt and a third bolt are fixedly connected to both sides of the steel plate, respectively, the second bolt is pre-buried inside the second wall, and the third bolt is used to extend into the accommodating groove.

[0011] By adopting the above technical solution, the second bolt is embedded in the second wall. The advance prefabrication reduces on-site operations and improves assembly efficiency. The second bolt improves the connection strength between the steel plate and the second wall. The third bolt improves the connection strength between the steel plate and the ultra-high performance concrete, thereby improving the overall strength of the wall.

[0012] Preferably, a limiting groove is provided at the bottom of the accommodating groove, and the limiting groove is used for the third bolt to extend into.

[0013] By adopting the above technical solution, the third bolt extends into the limiting groove, and the third bolt improves the connection strength among the steel cup, the ultra-high performance concrete and the steel plate, thereby improving the overall strength of the wall.

[0014] Preferably, it also includes a steel fiber mesh, which is welded to the groove wall of the accommodating groove.

[0015] By adopting the above technical solution, the steel fiber mesh and ultra-high performance concrete form an interlocking structure, which improves the mechanical bite force between the ultra-high performance concrete and the steel cup and ensures the bonding strength between the weathering steel and the ultra-high performance concrete.

[0016] Preferably, the end of the steel fiber mesh away from the bottom of the accommodating groove is fixedly connected with a retaining edge, and the end of the steel plate away from the second wall is provided with a closed groove, the closed groove is used for the retaining edge to be embedded, and the retaining edge is used to cover the joint between the steel cup and the steel plate.

[0017] By adopting the above technical solution, the rib covers the joint between the steel cup and the steel plate, improving the connection strength between the steel cup and the steel plate. When filling the filling cavity with ultra-high performance concrete, the ultra-high performance concrete is not likely to leak out from the joint, and at the same time, the entry of external water vapor into the filling cavity is reduced, improving the joint treatment efficiency and treatment quality.

[0018] Preferably, it further includes a first sealant, and the first sealant is arranged at the bottom of the closed groove, and the first sealant is used to fix the rib and the steel plate.

[0019] By adopting the above technical solution, the first sealant improves the connection strength between the steel cup and the steel plate, and at the same time, improves the sealing performance and reduces the seepage of ultra-high performance concrete.

[0020] Preferably, it further includes a second sealant, and the second sealant is fixedly connected to the bottom of the positioning groove, and the second sealant is used to fix the positioning ring and the steel cup.

[0021] By adopting the above technical solution, the materials of the positioning ring and the steel cup are both weathering steel. The surface of the positioning ring and the wall of the positioning groove are naturally rough and there are gaps. The second sealant fills the gaps, improves the sealing performance, and reduces the seepage of the joint.

[0022] Preferably, it further includes a butyl tape, and the butyl tape is fixedly connected to the outer walls of the steel cup and the steel plate, and the butyl tape is used to cover the joint between the steel cup and the steel plate.

[0023] By adopting the above technical solution, the butyl tape shields the joint between the steel cup and the steel plate, reducing the probability of the joint being eroded by moisture and salt spray.

[0024] Preferably, it further includes a corrosion inhibition layer, one side of the corrosion inhibition layer is fixedly connected to the outer walls of the steel cup and the steel plate, and the other side of the corrosion inhibition layer is fixedly connected to the butyl tape.

[0025] By adopting the above technical solution, the rusting of the steel cup and the steel plate is likely to cause the connection between the butyl tape and the steel cup and the steel plate to fail, and the corrosion inhibition layer reduces the probability of rusting of the steel cup and the steel plate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the first wall body and the second wall body are assembled, the positioning ring is embedded in the positioning groove, improving the assembly efficiency. Weathering steel is a low-alloy steel that forms a dense oxide rust layer on the surface to prevent further corrosion. Ultra-high performance concrete is a fiber-reinforced high-strength and high-toughness cement-based material. With weathering steel on the outer layer and UHPC on the inner layer, and through the cooperation of the anchoring sleeve, the connection strength of the wall body is improved; 2. The third stud penetrates into the limiting groove, and the third stud improves the connection strength among the steel cup, the ultra-high performance concrete and the steel plate, improving the overall strength of the wall body; 3. The rib covers the joint between the steel cup and the steel plate, improving the connection strength between the steel cup and the steel plate. When ultra-high performance concrete is filled into the filling cavity, it is not easy for the ultra-high performance concrete to leak out from the joint, and at the same time, it reduces the entry of external water vapor into the filling cavity, improving the joint treatment efficiency and quality. Description of the Drawings

[0027] Figure 1 is an overall structural schematic diagram of a weathering steel concrete wall structure.

[0028] Figure 2 is a cross-sectional view of a weathering steel concrete wall structure.

[0029] Figure 3 is Figure 2 an enlarged view of part A in

[0030] Figure 4 a cross-sectional view of the steel cup, steel plate, second sealant, anchoring sleeve, bolt, steel fiber mesh, first sealant, corrosion inhibitor layer and butyl tape.

[0031] Description of the reference numerals: 1, first wall; 2, steel cup; 21, receiving groove; 211, limiting groove; 22, positioning groove; 23, first stud; 24, through hole; 25, filling cavity; 26, grouting port; 27, slurry outlet; 28, connection surface; 3, second wall; 4, steel plate; 41, positioning ring; 42, second stud; 43, third stud; 44, airtight groove; 5, second sealant; 6, anchoring sleeve; 61, reinforcement plate; 7, bolt; 8, steel fiber mesh; 81, rib; 9, first sealant; 10, corrosion inhibitor layer; 11, butyl tape. Detailed Description of the Embodiment

[0032] The following will Figures 1-4 further describe the present application in detail with reference to the attached drawings.

[0033] The embodiment of the present application discloses a weathering steel concrete wall structure. Referring to Figure 1 and Figure 2 , a weathering steel concrete wall structure includes a first wall 1, a steel cup 2, a second wall 3, a steel plate 4, a second sealant 5, an anchoring sleeve 6, a bolt 7, a steel fiber mesh 8, a first sealant 9, a corrosion inhibitor layer 10 and a butyl tape 11.

[0034] Referring to Figure 2, the steel cup 2 is fixedly connected to one end of the first wall body 1. The outer wall of the steel cup 2 is coplanar with the outer wall of the first wall body 1. At one end of the steel cup 2 facing away from the first wall body 1, there are a receiving groove 21 and a positioning groove 22. The positioning groove 22 is arranged on the outer circumference of the receiving groove 21. At the bottom of the receiving groove 21, there are a plurality of limiting grooves 211. The plurality of limiting grooves 211 are evenly spaced along the length direction of the receiving groove 21. At one end of the steel cup 2 facing away from the receiving groove 21, a first stud 23 is fixedly connected. The first stud 23 is embedded inside the first wall body 1. There are a plurality of first studs 23. The plurality of first studs 23 are evenly spaced along the length direction of the first wall body 1.

[0035] Refer to Figure 2 and Figure 3 , a steel plate 4 is fixedly connected to one end of the second wall body 3. The outer wall of the steel plate 4 is coplanar with the outer wall of the second wall body 3. At one end of the steel plate 4 facing away from the second wall body 3, a positioning ring 41 is fixedly connected. The positioning groove 22 is used for the positioning ring 41 to be embedded. A second sealant 5 is fixedly connected to the bottom of the positioning groove 22. The positioning ring 41 presses the second sealant 5, so that the second sealant 5 fills the gap between the positioning ring 41 and the wall of the positioning groove 22. The second sealant 5 is used to fix the positioning ring 41 and the steel cup 2 On both sides of the steel plate 4, a second stud 42 and a third stud 43 are respectively fixedly connected. The second stud 42 is embedded inside the second wall body 3. There are a plurality of second studs 42. The plurality of second studs 42 are evenly spaced along the length direction of the second wall body 3. The third stud 43 is arranged on the inner circumference of the positioning ring 41. There are a plurality of third studs 43. The plurality of third studs 43 are arranged in one-to-one correspondence with the second studs 42. The third stud 43 is used to extend into the receiving groove 21, and the limiting groove 211 is used for the third stud 43 to extend into.

[0036] Refer to Figure 1 and Figure 4 , the steel cup 2 is provided with a through hole 24. The axis of the through hole 24 is perpendicular to the first wall body 1. The through hole 24 penetrates the steel cup 2. An anchor sleeve 6 is coaxially fixedly connected to the inner wall of the through hole 24. The anchor sleeve 6 is welded to the inner wall of the through hole 24. A reinforcing plate 61 is coaxially fixedly connected to the outer wall of the anchor sleeve 6. There are two reinforcing plates 61. The two reinforcing plates 61 are respectively arranged at both ends of the anchor sleeve 6. The reinforcing plate 61 abuts against the outer wall of the steel cup 2. A bolt 7 is threadedly connected to the inner wall of the anchor sleeve 6. There are a plurality of through holes 24. The plurality of through holes 24 are evenly spaced on the steel cup 2. There are a plurality of anchor sleeves 6. The anchor sleeves 6 are arranged in one-to-one correspondence with the through holes 24. The bolt 7 improves the shear force of the wall body and facilitates the external connection structure.

[0037] The surface of the groove wall of the receiving groove 21 is sandblasted, and the steel fiber mesh 8 is welded to the groove wall of the receiving groove 21. The mesh of the steel fiber mesh 8 is used to avoid the third bolt 43 and the anchor sleeve 6. The steel fiber mesh 8 is attached to the groove wall of the receiving groove 21. The end of the steel fiber mesh 8 away from the groove bottom of the receiving groove 21 is fixedly connected with a retaining edge 81, and the outer wall of the retaining edge 81 is attached to the groove wall of the receiving groove 21. The end of the steel plate 4 away from the second wall 3 is provided with a closed groove 44, and the closed groove 44 is arranged on the inner periphery of the positioning ring 41. The first sealant 9 is arranged at the groove bottom of the closed groove 44, and the closed groove 44 is used for the retaining edge 81 to be embedded. The first sealant 9 is used to fix the retaining edge 81 and the steel plate 4, and the retaining edge 81 is used to cover the joint between the steel cup 2 and the steel plate 4. The first sealant 9 and the second sealant 5 are both set as silane-modified polymer glue.

[0038] Reference Figure 2 The steel cup 2 and the steel plate 4 together form a filling cavity 25. The outer wall of the steel cup 2 is provided with a grouting port 26 and a grouting port 27. The grouting port 26 and the grouting port 27 are arranged close to the bottom of the receiving groove 21. The grouting port 26 and the grouting port 27 are both connected to the filling cavity 25. The filling cavity 25 is used to fill ultra-high performance concrete. The materials of the steel cup 2 and the steel plate 4 are both set to weathering steel.

[0039] Reference Figure 3 , connecting surfaces 28 are provided on both sides of the joint between the steel cup 2 and the steel plate 4, and the connecting surface 28 is sandblasted, one side of the corrosion inhibition layer 10 is fixedly connected to the connecting surface 28, and the other side of the corrosion inhibition layer 10 is fixedly connected to the butyl tape 11, and the butyl tape 11 covers the joint between the steel cup 2 and the steel plate 4. The corrosion inhibition layer 10 is a porous attachment layer sprayed on the connecting surface 28 after mixing pH-sensitive microcapsules with ethanol into a slurry. The shell material of the pH-sensitive microcapsules is polystyrene-acrylic acid copolymer, which dissolves when the pH is less than 6, and the core material of the pH-sensitive microcapsules is sodium nitrite rust inhibitor. Reduce the probability of the butyl tape 11 and the steel plate 4 being separated due to the rust of the connecting surface 28, causing the joint to be corroded by moisture and salt spray.

[0040] The implementation principle of a weathering steel concrete wall structure in an embodiment of the present application is as follows: a connecting component between a prefabricated steel cup 2 and a first wall 1, a connecting structure between a prefabricated steel plate 4 and a second wall 3, sandblasting the bottom of the receiving groove 21, welding the steel fiber mesh 8 to the groove wall of the receiving groove 21, welding the anchor sleeve 6 to the inner wall of the through-opening 24, completing the prefabrication, applying a second sealant 5 to the bottom of the positioning groove 22, applying a first sealant 9 to the bottom of the closed groove 44, hoisting the first wall 1 so that the positioning ring 41 is aligned with the positioning groove 22, assembling the steel cup 2 and the steel plate 4, embedding the retaining edge 81 into the closed groove 44, and extending the third bolt 43 into the limiting groove 211, spraying a corrosion-inhibiting layer 10 on both sides of the joint between the steel cup 2 and the steel plate 4, and then fixing the butyl tape 11.

[0041] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A weathering steel concrete wall structure, characterized in that: The invention comprises a first wall (1), a steel cup (2), a second wall (3), a steel plate (4), an anchor sleeve (6) and a bolt (7), wherein the steel cup (2) is fixedly connected to one end of the first wall (1), and the end of the steel cup (2) facing away from the first wall (1) is provided with a receiving groove (21) and a positioning groove (22), and the positioning groove (22) is provided on the outer periphery of the receiving groove (21), and the steel plate (4) is fixedly connected to one end of the second wall (3), and the end of the steel plate (4) facing away from the second wall (3) is fixedly connected with a positioning ring (41), and the positioning groove (22) is used for the positioning ring (41) to be embedded, and the steel cup (2) and the steel plate (4) are fixedly connected to one end of the second wall (3). ) are enclosed to form a filling cavity (25), the outer wall of the steel cup (2) is provided with a grouting port (26) and a grouting port (27), the grouting port (26) and the grouting port (27) are both connected to the filling cavity (25), the filling cavity (25) is used to fill ultra-high performance concrete, the material of the steel cup (2) and the steel plate (4) are both set to weathering steel, the steel cup (2) is provided with a through hole (24), the axis of the through hole (24) is perpendicular to the first wall (1), the through hole (24) passes through the steel cup (2), the anchor sleeve (6) is coaxially fixedly connected to the inner wall of the through hole (24), and the bolt (7) is threadedly connected to the inner wall of the anchor sleeve (6).

2. A weathering steel concrete wall structure according to claim 1, characterized in that: One end of the steel cup (2) facing away from the receiving groove (21) is fixedly connected to a first bolt (23), and the first bolt (23) is pre-buried inside the first wall (1).

3. The weathering steel concrete wall structure according to claim 1, characterized in that: A second bolt (42) and a third bolt (43) are respectively fixedly connected to both sides of the steel plate (4); the second bolt (42) is pre-buried inside the second wall (3); and the third bolt (43) is used to extend into the receiving groove (21).

4. A weathering steel concrete wall structure according to claim 3, characterized in that: A limiting groove (211) is provided at the bottom of the receiving groove (21), and the limiting groove (211) is used for the third bolt (43) to extend into.

5. The weathering steel concrete wall structure according to claim 1, characterized in that: It also includes a steel fiber mesh (8), wherein the steel fiber mesh (8) is welded to the groove wall of the accommodating groove (21).

6. The weathering steel concrete wall structure according to claim 5, characterized in that: One end of the steel fiber mesh (8) facing away from the bottom of the accommodating groove (21) is fixedly connected to a retaining edge (81), and one end of the steel plate (4) facing away from the second wall (3) is provided with a closed groove (44), the closed groove (44) is used for the retaining edge (81) to be embedded, and the retaining edge (81) is used to cover the joint between the steel cup (2) and the steel plate (4).

7. The weathering steel concrete wall structure according to claim 6, characterized in that: It also includes a first sealant (9), the first sealant (9) being arranged at the bottom of the closed groove (44), the first sealant (9) being used to fix the retaining edge (81) and the steel plate (4).

8. The weathering steel concrete wall structure according to claim 1, characterized in that: It also includes a second sealant (5), wherein the second sealant (5) is fixedly connected to the bottom of the positioning groove (22), and the second sealant (5) is used to fix the positioning ring (41) and the steel cup (2).

9. The weathering steel concrete wall structure according to claim 1, characterized in that: It also includes a butyl tape (11), wherein the butyl tape (11) is fixedly connected to the outer walls of the steel cup (2) and the steel plate (4), and the butyl tape (11) is used to cover the joint between the steel cup (2) and the steel plate (4).

10. The weathering steel concrete wall structure according to claim 9, characterized in that: It also comprises a corrosion inhibition layer (10), one side of the corrosion inhibition layer (10) being fixedly connected to the outer wall of the steel cup (2) and the steel plate (4), and the other side of the corrosion inhibition layer (10) being fixedly connected to the butyl tape (11).

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