Light assembly type shear wall connecting structure adopting embedded profile steel

Abstract

The utility model discloses a light assembly type shear wall connecting structure adopting embedded profile steel. The light assembly type shear wall connecting structure adopting the embedded profile steel comprises a prefabricated wall body, longitudinal embedded profile steel, transverse embedded profile steel, longitudinal rectangular steel plates and transverse rectangular steel plates, and concrete wraps the outer sides of the rectangular steel plates. The section of the embedded profile steel is based on the I-shaped profile steel, the lock tongues are arranged on the flanges, the two ends of the embedded profile steel are aligned with the reserved rabbet grooves of the prefabricated walls and inserted into the rabbet grooves, and the two prefabricated walls are connected after the lock tongues pop out of the lock tongue holes. And then the joints of the prefabricated walls are fixed through rectangular steel plates, and the prefabricated walls, the embedded profile steel and the rectangular steel plates are jointly connected through high-strength bolts. Compared with traditional sleeve connection, the construction efficiency is improved, the requirement for installation precision is low, on-site wet operation is reduced, and the ecological environment is protected.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering, in particular to an assembled shear wall connection structure which is easy to install and has good integrity. Background Art

[0002] Prefabricated shear walls are a commonly used structural system in prefabricated buildings. They are the main key load-bearing components that bear and transmit horizontal and vertical loads. In prefabricated shear walls, the connection method between the prefabricated walls is one of the key factors affecting the structural load-bearing performance. A reasonable connection method can not only achieve reasonable force transmission between components, but also facilitate installation and construction.

[0003] At present, the connection of prefabricated shear walls is mainly through grouting sleeves. The ribbed steel bars are inserted into the grouting sleeves with a concave and convex surface inside the inner cavity, and special high-strength cement-based grouting material is poured into the gap between the sleeve and the steel bars. After the grouting material solidifies, the steel bars are anchored in the sleeve to achieve the connection of the prefabricated components. In practical applications, this connection method has many disadvantages. First, the fullness of the grouting is difficult to determine, and leakage and voids are prone to occur, and the construction quality cannot be guaranteed. Second, the sleeve process is complicated and the cost is high, and there are high requirements for component processing and installation accuracy. Third, the scope of application is limited, and there are safety hazards in the connection between combined shear walls, and even affect the overall stability of the structure.

[0004] Patent CN211172514U discloses a prefabricated shear wall connection structure. The shear wall is pre-buried with a sleeve in the wall. During installation, the steel bars are first inserted into the sleeve and then poured with slurry. However, since the steel bars are thin and there are many of them, the installation of the shear wall takes a lot of time, which greatly affects the progress of the project.

[0005] Based on this, in order to solve the above-mentioned shortcomings, research and improvement are carried out on the existing problems, and an assembled shear wall connection structure that is easy and quick to install, reduces construction time and is simple to operate is proposed. Utility Model Content

[0006] The utility model proposes a light assembled shear wall connection structure using embedded steel. The connection structure has a simple principle and strong shear resistance. The grouting sleeve is eliminated. The walls are connected by embedded steel. Lock tongues are arranged on the flanges on both sides of the steel. The lock tongues can be quickly positioned and installed by docking with the reserved lock tongue holes in the wall, which speeds up the construction progress. The flanges on both sides of the steel share the horizontal load, which not only improves the lateral stiffness of the wall, but also improves the shear bearing capacity at the wall joints, thereby improving the mechanical properties of the assembled shear wall and achieving the purpose of "strong connection, weak component". In addition, the arrangement of steel at the joints of the shear wall can reduce concrete damage, improve the bonding strength between concretes, and make the cracks reach the ideal mode of fine and dense. Secondly, in the combined shear wall, bolt holes are reserved on the steel and the steel is fixed with high-strength bolts. While reducing on-site wet operations, it can also reduce the damage of the connecting parts to the overall structure, which has a good application effect.

[0007] The specific technical solution is: a light-weight assembled shear wall connection structure using embedded steel, including prefabricated wall, longitudinal embedded steel, transverse embedded steel, longitudinal rectangular steel plate, transverse rectangular steel plate, and the outer side of the rectangular steel plate is wrapped with concrete. The longitudinal embedded steel is divided into two ends along the longitudinal central axis, and the two ends are respectively inserted into the two prefabricated walls, and then the two longitudinal rectangular steel plates are respectively pressed on both sides of the longitudinal embedded steel, and the longitudinal rectangular steel plates on both sides are tightly fixed to the prefabricated wall and the longitudinal embedded steel in the form of bolt connection, so as to complete the vertical seam connection of the prefabricated wall.

[0008] The transverse embedded steel is divided into two ends along the transverse central axis, and the two ends are respectively inserted into the two prefabricated walls. Then two transverse rectangular steel plates are respectively pressed on both sides of the transverse embedded steel, and the transverse rectangular steel plates on both sides are tightly fixed to the prefabricated walls and the transverse embedded steel by bolt connection, so as to complete the horizontal seam connection of the prefabricated wall.

[0009] All components in the above technical solution are prefabricated, among which the embedded steel section is based on the I-shaped steel, and a lock tongue is set on the flange. The two ends of the embedded steel are aligned with the reserved mortise grooves of each prefabricated wall. When the lock tongue pops out from the lock tongue hole, it is installed in place. No sleeve connection is required, which improves construction efficiency and has low requirements for installation accuracy. The joints of the prefabricated wall are fixed by rectangular steel plates and high-strength bolts are used to connect the prefabricated wall, embedded steel and rectangular steel plates. Compared with the traditional sleeve connection, it improves the overall stability of the wall while reducing on-site wet operations and protecting the environment.

[0010] Furthermore, the longitudinal embedded steel is symmetrically provided with locking tongues on both sides of the longitudinal central axis, and the left and right sides of the prefabricated wall have longitudinal mortise grooves. The left locking tongue of the longitudinal embedded steel is connected to the right longitudinal mortise groove of the first prefabricated wall, and the right locking tongue of the longitudinal embedded steel is connected to the left longitudinal mortise groove of the second prefabricated wall.

[0011] Furthermore, the transverse embedded steel is symmetrically provided with locking tongues on both sides along the transverse central axis, and the upper and lower sides of the prefabricated wall are provided with transverse mortise grooves. The upper locking tongue of the transverse embedded steel is connected to the lower transverse mortise groove of the first prefabricated wall, and the lower locking tongue of the transverse embedded steel is connected to the upper transverse mortise groove of the second prefabricated wall.

[0012] Furthermore, the prefabricated wall has at least two transverse mortise grooves on both sides, and they are symmetrically distributed along the central axis. The prefabricated wall has at least two longitudinal mortise grooves on both sides, and they are symmetrically distributed along the central axis.

[0013] Furthermore, the prefabricated walls are multiple, two horizontally adjacent prefabricated walls are butt-jointed via longitudinal embedded steel sections, and two vertically adjacent prefabricated walls are butt-jointed via transverse embedded steel sections.

[0014] Further, the prefabricated wall is provided with bolt holes on both sides, and they are symmetrically distributed along the central axis, and the bolt holes are symmetrically distributed between every two mortise grooves. The prefabricated wall is provided with bolt holes on both sides, and they are symmetrically distributed along the central axis, and the bolt holes are symmetrically distributed between every two mortise grooves.

[0015] Furthermore, the prefabricated wall has locking bolt holes at both ends of the mortise grooves on the upper and lower sides, two locking bolt holes at both ends of each mortise groove, and the depth from the locking bolt hole to the mortise groove is half of the height of the horizontal embedded steel. The prefabricated wall has locking bolt holes at both ends of the mortise grooves on the left and right sides, two locking bolt holes at both ends of each mortise groove, and the depth from the locking bolt hole to the mortise groove is half of the width of the vertical embedded steel.

[0016] Furthermore, a plurality of bolt holes are arranged between every two locking tongues of the longitudinal embedded steel, and are symmetrically distributed along the central axis, and the bolt holes are symmetrically distributed along the left and right sides. The bolt holes on the left side of the central axis correspond one-to-one with the bolt holes on the right side of the first prefabricated wall, and the bolt holes on the right side of the central axis correspond one-to-one with the bolt holes on the left side of the second prefabricated wall.

[0017] Furthermore, a plurality of bolt holes are arranged between every two locking tongues of the transverse embedded steel and are symmetrically distributed along the central axis, and the bolt holes are symmetrically distributed along the upper and lower sides. The bolt holes on the upper side of the central axis correspond one-to-one with the bolt holes on the lower side of the first prefabricated wall, and the bolt holes on the lower side of the central axis correspond one-to-one with the bolt holes on the upper side of the second prefabricated wall.

[0018] Furthermore, the longitudinal rectangular steel plates are two pieces, both of which are provided with bolt holes, and the bolt holes are symmetrically distributed along the two sides of the central axis. The bolt holes on the left side of the central axis of the longitudinal rectangular steel plate correspond one-to-one with the bolt holes on the right side of the first prefabricated wall and the bolt holes on the left side of the central axis of the longitudinal embedded steel. The bolt holes on the right side of the central axis of the longitudinal rectangular steel plate correspond one-to-one with the bolt holes on the left side of the second prefabricated wall and the bolt holes on the right side of the central axis of the longitudinal embedded steel. The longitudinal connecting steel plates are provided at the vertical seam joint of the prefabricated wall, one on each side, to clamp and fix the prefabricated wall and the longitudinal embedded steel.

[0019] Furthermore, the transverse rectangular steel plates are two pieces, both of which are provided with bolt holes, and the bolt holes are symmetrically distributed along the central axis. The bolt holes on the upper side of the central axis of the transverse rectangular steel plate correspond one-to-one with the bolt holes on the lower side of the first prefabricated wall and the bolt holes on the upper side of the central axis of the transverse embedded steel. The bolt holes on the lower side of the central axis of the transverse rectangular steel plate correspond one-to-one with the bolt holes on the upper side of the second prefabricated wall and the bolt holes on the lower side of the central axis of the transverse embedded steel. One transverse rectangular steel plate is provided on each of the front and rear sides at the horizontal seam joint of the prefabricated wall to clamp and fix the prefabricated wall and the transverse embedded steel.

[0020] Furthermore, after the prefabricated wall, longitudinal embedded steel, transverse embedded steel, longitudinal rectangular steel plate and transverse rectangular steel plate are correspondingly spliced, high-strength bolts are inserted into the corresponding bolt holes of the rectangular steel plate, prefabricated wall and embedded steel in turn, and then nuts are installed for the high-strength bolts on the other side of the prefabricated wall.

[0021] Furthermore, the lengths of the embedded steel sections and rectangular steel plates are both set by the height and width of the prefabricated wall.

[0022] Furthermore, the lock tongues on both sides of the embedded steel are in a closed state when passing through the mortise and tenon grooves of the prefabricated wall. When the embedded steel reaches the reserved lock tongue hole, the lock buckle will pop out, and at this time it can be accurately determined that the embedded steel has been installed in place.

[0023] Furthermore, the connection between the prefabricated wall and the rectangular steel plate and the embedded steel is high-strength bolt connection. By using the bolt connection fixing method, the construction intensity can be reduced, the construction efficiency can be improved, and the stability of the connection can be improved.

[0024] The beneficial effects of the utility model are:

[0025] (1) Prefabricated shear walls only need to reserve corresponding mortise and tenon grooves, lock tongue holes and bolt holes at the joints during prefabrication, and can be spliced ​​through corresponding connecting steel plates. Only a small amount of construction work is required on site, which not only speeds up the construction progress but also saves manpower and material resources.

[0026] (2) The connection structure of the utility model has a simple principle and strong shear resistance. The grouting sleeve is eliminated and the walls are connected by embedded steel sections, which reduces wet work on the construction site, protects the environment, and meets the requirements of green construction.

[0027] (3) The utility model inserts embedded steel sections into the prefabricated wall, fixes the embedded steel sections to the prefabricated wall and the rectangular steel plate respectively, and uses high-strength bolts to fix the three components together. This not only strengthens the firmness of the prefabricated wall and the connecting parts, but also is suitable for high-intensity earthquake-resistant areas. It has a wide range of applications, is conducive to the industrialized production of steel structures, and promotes the application of steel structure systems.

[0028] (4) The prefabricated walls, rectangular steel plates and embedded steel in the utility model are all factory-processed, easy to assemble, reliable and flexible in structure. When the components are aged and need to be replaced, there is no need to dismantle the entire wall, but a single wall can be dismantled, which is convenient for replacement and suitable for sustainable green development. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a schematic diagram of connecting four prefabricated walls of the utility model.

[0031] Figure 2 for Figure 1 Schematic diagram of prefabricated wall 1 in FIG.

[0032] Figure 3a Schematic diagram of longitudinal embedded steel

[0033] Figure 3b Schematic diagram of horizontal embedded steel

[0034] Figure 4a Schematic diagram of longitudinal rectangular steel plate

[0035] Figure 4b Schematic diagram of a transverse rectangular steel plate

[0036] Figure 5 Schematic diagram of high-strength bolts and nuts

[0037] In the figure: prefabricated wall 1, 2, 3, 4, longitudinal rectangular steel plate 5, longitudinal rectangular steel plate bolt hole 51, transverse rectangular steel plate 6, transverse rectangular steel plate bolt hole 61, longitudinal mortise groove 7, transverse mortise groove 8, lock tongue hole 9, prefabricated wall bolt hole 10, longitudinal embedded steel 11, longitudinal embedded steel lock core 111, longitudinal embedded steel lock tongue 112, longitudinal embedded steel bolt hole 113, transverse embedded steel 12, transverse embedded steel lock core 121, transverse embedded steel lock tongue 122, transverse embedded steel bolt hole 123, high-strength bolt 13, nut 14. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0039] It should be noted that, in the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] Furthermore, the terms “first,” “second,” “third,” etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

[0041] At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figures 1 to 5 As shown, the utility model provides a light assembled shear wall connection structure using embedded steel, including a longitudinal rectangular steel plate 5, a transverse rectangular steel plate 6, a longitudinal embedded steel 11 and a transverse embedded steel 12. The height of the longitudinal rectangular steel plate 5 and the longitudinal embedded steel 11 is set according to the height of the vertical joint of the prefabricated wall, and the thickness is set according to the thickness of the prefabricated wall. The length of the transverse rectangular steel plate 6 and the transverse embedded steel 12 is set according to the length of the horizontal joint of the prefabricated wall, and the thickness is set according to the thickness of the prefabricated wall.

[0043] In some embodiments, the end faces on both ends of the prefabricated wall have longitudinal mortise grooves 7, the cross-section of the longitudinal mortise grooves 7 is the same as the cross-section of the longitudinal embedded steel lock core 111, and the depth of the longitudinal mortise grooves 7 is half the distance between the left and right ends of the longitudinal embedded steel lock cores.

[0044] In some embodiments, the lock core 111 at the left end of the longitudinal embedded steel 11 is docked with the longitudinal mortise groove 7 at the right end of the prefabricated wall 1. When the lock core 111 is inserted into the longitudinal mortise groove 7, because a spring is installed inside the lock core 111, the lock tongues 112 at both ends of the lock buckle will retract into the lock core 111 until the lock tongues 112 pop out from the lock tongue holes 9 on both sides of the right end of the prefabricated wall 1, indicating that the longitudinal embedded steel 11 is installed in place with the right end of the prefabricated wall 1, and the bolt hole 113 at the left end of the longitudinal embedded steel 11 along the central axis is docked with the bolt hole 10 at the right end of the prefabricated wall 1.

[0045] In some embodiments, the lock core 111 at the right end of the longitudinal embedded steel 11 is docked with the longitudinal mortise groove 7 at the left end of the prefabricated wall 2. When the lock core 111 is inserted into the longitudinal mortise groove 7, because a spring is installed inside the lock core 111, the lock tongues 112 at both ends of the lock buckle will retract into the lock core 111 until the lock tongues 112 pop out from the lock tongue holes 9 on both sides of the left end of the prefabricated wall 2, indicating that the longitudinal embedded steel 11 is installed in place with the left end of the prefabricated wall 2, and the bolt hole 113 at the right end of the longitudinal embedded steel 11 along the central axis is docked with the bolt hole 10 at the left end of the prefabricated wall 2.

[0046] In some embodiments, the bolt holes 51 of the longitudinal rectangular steel plate 5 are connected to the bolt holes 10 at the right end of the prefabricated wall 1, the bolt holes 10 at the left end of the prefabricated wall 2, and the bolt holes 113 of the longitudinal embedded steel 11, and a longitudinal rectangular steel plate 5 is installed at the front and back of the vertical joint of the prefabricated wall 1 and the prefabricated wall 2, and the high-strength bolts 13 are inserted into the bolt holes 51 of any one of the front and rear longitudinal rectangular steel plates 5, and pass through the bolt holes 51 of the other longitudinal rectangular steel plate 5, and then the nuts 14 are installed on the high-strength bolts 13, and the right end of the prefabricated wall 1 and the left end of the prefabricated wall 2 are connected.

[0047] In some embodiments, the connection method of the right end of the prefabricated wall 3 and the left end of the prefabricated wall 4 is the same as the connection principle of the right end of the prefabricated wall 1 and the left end of the prefabricated wall 2.

[0048] In some embodiments, the end faces at both ends of the prefabricated wall have a transverse mortise groove 8, the cross-section of the transverse mortise groove 8 is the same as the cross-section of the transverse embedded steel lock core 121, and the depth of the transverse mortise groove 8 is half the distance between the upper and lower ends of the transverse embedded steel lock core.

[0049] In some embodiments, the upper end lock core 121 of the transverse embedded steel 12 is docked with the transverse mortise groove 8 at the lower end of the prefabricated wall 1. When the lock core 121 is inserted into the transverse mortise groove 8, because a spring is installed inside the lock core 121, the lock tongues 122 at both ends of the lock buckle will retract into the lock core 121 until the lock tongues 122 pop out from the lock tongue holes 9 on both sides of the lower end of the prefabricated wall 1, indicating that the transverse embedded steel 12 is installed in place with the lower end of the prefabricated wall 1, and the upper end bolt hole 123 of the transverse embedded steel 12 along the central axis is docked with the lower end bolt hole 10 of the prefabricated wall 1.

[0050] In some embodiments, the lock core 121 at the lower end of the transverse embedded steel 12 is docked with the transverse mortise groove 8 at the upper end of the prefabricated wall 3. When the lock core 121 is inserted into the transverse mortise groove 8, because a spring is installed inside the lock core 121, the lock tongues 122 at both ends of the lock buckle will retract into the lock core 121 until the lock tongues 122 pop out from the lock tongue holes 9 on both sides of the upper end of the prefabricated wall 3, indicating that the transverse embedded steel 12 is installed in place with the upper end of the prefabricated wall 3, and the bolt holes 123 at the lower end of the transverse embedded steel 12 along the central axis are docked with the bolt holes 10 at the upper end of the prefabricated wall 3.

[0051] In some embodiments, the bolt holes 61 of the transverse rectangular steel plate 6 are connected to the bolt holes 10 at the lower end of the prefabricated wall 1, the bolt holes 10 at the upper end of the prefabricated wall 3, and the bolt holes 123 of the transverse embedded steel 12, and a transverse rectangular steel plate 6 is installed at the front and rear of the horizontal joint of the prefabricated wall 1 and the prefabricated wall 3, and the high-strength bolts 13 are inserted into the bolt holes 61 of any one of the front and rear transverse rectangular steel plates 6, and pass through the bolt holes 61 of the other transverse rectangular steel plate 6, and then the nuts 14 are installed on the high-strength bolts 13, and the lower end of the prefabricated wall 1 and the upper end of the prefabricated wall 3 are connected.

[0052] In some embodiments, the connection method between the lower end of the prefabricated wall 2 and the upper end of the prefabricated wall 4 is the same as the connection principle between the lower end of the prefabricated wall 1 and the upper end of the prefabricated wall 2.

[0053] To sum up: a light assembled shear wall connection structure using embedded steel, by reserving horizontal mortise and tenon grooves at the upper and lower ends of the wall, longitudinal mortise and tenon grooves at the left and right ends, as well as bolt holes and lock tongue holes, and inserting prefabricated longitudinal embedded steel and transverse embedded steel into the upper, lower, left and right ends of the prefabricated wall, and finally fixing two longitudinal rectangular steel plates and two transverse rectangular steel plates at the vertical and horizontal joints of the prefabricated wall with high-strength bolts to complete the connection.

[0054] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A light-weight assembled shear wall connection structure using embedded steel, comprising a prefabricated wall, a longitudinal embedded steel, a transverse embedded steel, a longitudinal rectangular steel plate, and a transverse rectangular steel plate, characterized in that: The outer side of the rectangular steel plate is wrapped with concrete; the longitudinal embedded steel is divided into two ends along the longitudinal central axis, and the two ends are respectively inserted into the two prefabricated walls, and then the two longitudinal rectangular steel plates are respectively pressed on both sides of the longitudinal embedded steel, and the longitudinal rectangular steel plates on both sides are tightly fixed to the prefabricated walls and the longitudinal embedded steel in the form of bolt connection, so as to complete the vertical seam connection of the prefabricated wall; the transverse embedded steel is divided into two ends along the transverse central axis, and the two ends are respectively inserted into the two prefabricated walls, and then the two transverse rectangular steel plates are respectively pressed on both sides of the transverse embedded steel, and the transverse rectangular steel plates on both sides are tightly fixed to the prefabricated walls and the transverse embedded steel in the form of bolt connection, so as to complete the horizontal seam connection of the prefabricated wall.

2. According to claim 1, a lightweight assembled shear wall connection structure using embedded steel is characterized by: The vertical seams of the prefabricated wall are connected by longitudinal embedded steel sections, and the horizontal seams of the prefabricated wall are connected by transverse embedded steel sections. Both the longitudinal embedded steel sections and the transverse embedded steel sections are provided with bolt holes.

3. A light-weight assembled shear wall connection structure using embedded steel according to claim 1 or 2, characterized in that: The longitudinal embedded steel and the transverse embedded steel are based on the cross section of the I-shaped steel, and locking tongues are arranged on both sides of the flange.

4. A light-weight assembled shear wall connection structure using embedded steel according to claim 1 or 2, characterized in that: The two longitudinal rectangular steel plates are respectively pressed on both sides of the longitudinal embedded steel, and the two transverse rectangular steel plates are respectively pressed on both sides of the transverse embedded steel. Both the longitudinal rectangular steel plates and the transverse rectangular steel plates are provided with bolt holes.

5. The light-weight assembled shear wall connection structure using embedded steel according to claim 1 is characterized in that: The prefabricated wall, the longitudinal embedded steel and the longitudinal rectangular steel plate are connected and fixed by high-strength bolts to complete the vertical seam connection of the prefabricated wall; the prefabricated wall, the transverse embedded steel and the transverse rectangular steel plate are connected and fixed by high-strength bolts to complete the horizontal seam connection of the prefabricated wall.

Images