Fabricated prestressed joint

Abstract

The utility model relates to an assembly type prestress connector which comprises three standard parts serving as assembly units, each standard part is provided with a front end connecting plate and a rear end connecting plate, and an auxiliary structure is fixedly arranged on each rear end connecting plate. Wherein the first standard component and the third standard component are in mirror symmetry and are respectively provided with a side connecting plate, an auxiliary plate is fixedly arranged on one side, close to the side connecting plate, of the lower edge of the auxiliary structure, and the auxiliary plate is perpendicular to the rear end connecting plate and the side connecting plate; side connecting plates are arranged on the left side and the right side of the second standard part, auxiliary plates are fixedly arranged at the positions, close to the two side connecting plates, of the lower edge of the auxiliary structure of the second standard part, and the auxiliary plates are perpendicular to the rear end connecting plate and the side connecting plates; the side connecting plates of the first standard component and the third standard component are directly connected, or at least one second standard component is arranged between the first standard component and the third standard component; and the adjacent auxiliary plates (301) are spliced to form a placement part of the prestress applying device.

Description

Technical Field

[0001] This utility model relates to a prestressing application device for foundation pit steel support, specifically a prefabricated prestressed joint, belonging to the field of civil engineering technology. Background Technology

[0002] The existing prestressed structural system mainly consists of joints, spacers, drawers, and loading devices. One side of the joint connects to the loading device, and the other side connects to the main structural system. The joint plays a crucial role during prestressing. Depending on the size and form of the main structure, the joints need to be redesigned, increasing the difficulty of design and construction.

[0003] Prefabricated structures are rapidly being adopted in the field of civil engineering due to their advantages in construction speed, structural quality, and environmental benefits. Combining the prefabricated concept with the current research focus, addressing the compatibility issue between prestressed joints and the main structure while ensuring overall structural stability is a key research priority. Summary of the Invention

[0004] The purpose of this utility model is to provide a prefabricated prestressed joint. After the standard parts of the prestressed joint are processed, several standard parts are selected and assembled according to the size and form of the main structure. After the prestressed joint is used, it can be disassembled and put into secondary use with basically no damage.

[0005] The present invention adopts the following technical solution:

[0006] A prefabricated prestressed joint includes three standard components as component units. Each of the three standard components has a front connecting plate 1 and a rear connecting plate 4, and an auxiliary structure 3 is fixedly provided on the rear connecting plate 4. The first standard component and the third standard component are mirror-symmetrical, and each also has a side connecting plate 2. An auxiliary plate 301 is fixedly provided on the lower edge of the auxiliary structure 3 near the side connecting plate 2. The auxiliary plate is perpendicular to both the rear connecting plate 4 and the side connecting plate 2. The second standard component has side connecting plates 2 on both its left and right sides, and the lower edge of the auxiliary structure 301 of the second standard component has an auxiliary plate 301 fixedly provided near the two side connecting plates 2 respectively. The auxiliary plate is perpendicular to both the rear connecting plate 4 and the side connecting plate 2. The side connecting plates 2 of the first standard component and the third standard component are directly connected, or at least one second standard component is provided between the first standard component and the third standard component. Adjacent auxiliary plates 301 are spliced ​​to form a placement area for a prestressing application device.

[0007] Preferably, adjacent side connecting plates 2 are fixed together by bolts.

[0008] Preferably, adjacent auxiliary plates 301 are spliced ​​together and then fixedly connected using a connecting plate 4.

[0009] Furthermore, the connecting plate 4 is connected to the adjacent auxiliary plate 301 by bolts.

[0010] Preferably, the front connecting plate 1 and the side connecting plate 2 are each provided with an array of connecting holes; wherein the connecting holes on the front connecting plate 1 are used to connect with the main structure, and the connecting holes on the side connecting plate 2 are used to connect with the side connecting plate 2 of the adjacent standard part.

[0011] Preferably, multiple support plate structures are vertically connected between the front-end connecting plate 1 and the rear-end connecting plate 4.

[0012] Preferably, the inner edges of the front connecting plate 1 and the side connecting plate 2 are in contact with each other, forming a groove at the junction.

[0013] Preferably, the prestressing application device is a jack.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1) Standardized production of prestressed joint accessories reduces design complexity;

[0016] 2) The prestressed joint is made up of multiple accessories, which facilitates transportation and forms standard parts that can be freely combined and are easy to install;

[0017] 3) The prestressed joint is mainly installed by bolt connection, which is convenient for on-site assembly and saves construction time;

[0018] 4) After the adjacent auxiliary plates are spliced ​​together, they form the placement position of the prestressing application device, and at the same time, they are connected with connecting plates to achieve the effect of connection and reinforcement, which achieves two goals at once.

[0019] 5) The joint standard parts are connected to the main structure. The steel plate and the side steel plate are reserved with grooves to avoid structural gaps when they are fixed to the main structure later, thus improving structural safety. Attached Figure Description

[0020] Figure 1 This is a plan view of the prefabricated prestressed joint of this utility model.

[0021] Figure 2 This is a three-dimensional view of the first standard part.

[0022] Figure 3 This is a three-dimensional view of the second standard part.

[0023] Figure 4 This is a 3D view of the third standard component.

[0024] Figure 5 This is a schematic diagram of a standard part's groove.

[0025] Figure 6This is a perspective view of the prefabricated prestressed joint of this utility model.

[0026] Figure 7 This is a schematic diagram showing the location of the connecting plate.

[0027] Figure 8 This is a schematic diagram of prefabricated prestressed joint specification one.

[0028] Figure 9 This is a schematic diagram of prefabricated prestressed joint specification two.

[0029] Figure 10 This is a schematic diagram of prefabricated prestressed joint specification three.

[0030] In the figure, 1. front-end connecting plate, 2. side connecting plate, 3. auxiliary structure, 4. connecting plate, 301. auxiliary plate. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] This embodiment provides a prefabricated prestressed joint. After the standard prestressed joint components are processed, several standard components are selected and assembled according to the dimensions and form of the main structure. After the prestressed joint has been used, it can be disassembled and directly reused in a basically undamaged state. Specifically:

[0033] like Figure 1-6 A precast prestressed joint includes three standard components as component units. Each of the three standard components has a front connecting plate 1 and a rear connecting plate 4, and an auxiliary structure 3 is fixedly provided on the rear connecting plate 4. The first standard component and the third standard component are mirror-symmetrical, and each also has a side connecting plate 2. An auxiliary plate 301 is fixedly provided on the lower edge of the auxiliary structure 3 near the side connecting plate 2. The auxiliary plate is perpendicular to both the rear connecting plate 4 and the side connecting plate 2. The second standard component has side connecting plates 2 on both its left and right sides, and the lower edge of the auxiliary structure 301 of the second standard component has auxiliary plates 301 fixedly provided near the two side connecting plates 2 respectively. The auxiliary plates are perpendicular to both the rear connecting plate 4 and the side connecting plates 2. The side connecting plates 2 of the first standard component and the third standard component are directly connected, or at least one second standard component is provided between the first standard component and the third standard component.

[0034] Among them, such as Figure 8 This demonstrates the direct connection between the side connecting plate 2 of the first standard component and the third standard component.

[0035] Among them, such as Figure 9 This demonstrates a situation where a third standard component is set between the side connecting plate 2 of the first standard component and the third standard component.

[0036] Among them, such as Figure 10 This demonstrates a situation where two third standard parts are set between the side connecting plates 2 of the first standard part and the third standard part.

[0037] In this embodiment, see Figure 6 The adjacent side connecting plates 2 are fixed by bolts.

[0038] In this embodiment, see Figure 7 The adjacent auxiliary plates 301 are spliced ​​together and then fixedly connected using the connecting plate 4.

[0039] In this embodiment, see Figure 7 The connecting plate 4 is connected to the adjacent auxiliary plate 301 by bolts, and in combination with... Figure 6 It can be seen that a prestressing application device is placed between adjacent auxiliary plates 301.

[0040] In this embodiment, see Figure 1 and 6 The front connecting plate 1 and the side connecting plate 2 are each provided with arrayed connecting holes; wherein the connecting holes on the front connecting plate 1 are used to connect with the main structure, and the connecting holes on the side connecting plate 2 are used to connect with the side connecting plate 2 of the adjacent standard parts.

[0041] In this embodiment, see Figure 1 and 6 Multiple support plate structures are vertically connected between the front-end connecting plate 1 and the rear-end connecting plate 4.

[0042] In this embodiment, see Figure 5 The inner edges of the front connecting plate 1 and the side connecting plate 2 are in contact with each other, forming a groove at the junction to prevent structural gaps from appearing when they are subsequently connected and fixed to the main structure, thereby improving structural safety.

[0043] Preferably, the prestressing application device is a jack.

[0044] The standard part has bolt holes on both the front and back sides. The front side is connected to the main structure, and the rear side is connected to the jack.

[0045] After the standard connector components are connected and fixed, the connecting plate 4 is secondary connected and fixed to the two standard connector components at the bottom of the connection point using bolts. For example... Figure 7 As shown.

[0046] Precast prestressed joints are selected based on the dimensions and form of the main structure, using first standard parts, second standard parts, and several third standard parts, and should include at least one first standard part and one second standard part, thereby forming precast prestressed joints of different specifications.

[0047] This utility model standardizes the production of prestressed joint accessories, reducing design complexity; the prestressed joint consists of multiple accessories for easy transportation, forming standard parts that can be freely combined and installed conveniently; the prestressed joint installation method mainly relies on bolt connections, making on-site assembly convenient and saving construction time; adjacent auxiliary plates are spliced ​​to form the placement position for the prestressing application device, and are simultaneously connected with connecting plates to achieve a connection and reinforcement effect, achieving two goals at once; the standard joint parts have pre-reserved grooves on the steel plates connecting to the main structure and the side steel plates to avoid structural gaps when connecting and fixing to the main structure later, thus improving structural safety.

[0048] The above are preferred embodiments of the present utility model. Those skilled in the art can make various changes or improvements based on this. Without departing from the overall concept of the present utility model, these changes or improvements should all fall within the scope of protection claimed by the present utility model.

Claims

1. A precast prestressed joint, characterized in that: This includes three standard components that serve as unit modules, among which, Each of the three standard parts has a front connecting plate (1) and a rear connecting plate (4), and an auxiliary structure (3) is fixedly provided on the rear connecting plate (4); among them, The first standard component and the third standard component are mirror symmetrical, and each is also provided with a side connecting plate (2). An auxiliary plate (301) is fixedly provided on the lower edge of the auxiliary structure (3) near the side connecting plate (2). The auxiliary plate is perpendicular to the rear connecting plate (4) and the side connecting plate (2). The second standard component has side connecting plates (2) on both the left and right sides, and the lower edge of the auxiliary structure (301) of the second standard component is fixedly provided with auxiliary plates (301) near the two side connecting plates (2). The auxiliary plates are perpendicular to the rear connecting plate (4) and the side connecting plates (2). The side connecting plates (2) of the first standard part and the third standard part are directly connected, or at least one second standard part is provided between the first standard part and the third standard part; the adjacent auxiliary plates (301) are spliced ​​together to form the placement position of the prestressing application device.

2. The precast prestressed joint as described in claim 1, characterized in that: The adjacent side connecting plates (2) are fixed by bolts.

3. The prefabricated prestressed joint as described in claim 1, characterized in that: Adjacent auxiliary plates (301) are spliced ​​together and then fixedly connected using connecting plates (4).

4. The prefabricated prestressed joint as described in claim 3, characterized in that: The connecting plate (4) is connected to the adjacent auxiliary plate (301) by bolts.

5. The prefabricated prestressed joint as described in claim 1, characterized in that: The front connecting plate (1) and the side connecting plate (2) are each provided with arrayed connecting holes; wherein the connecting holes on the front connecting plate (1) are used to connect with the main structure, and the connecting holes on the side connecting plate (2) are used to connect with the side connecting plate (2) of the adjacent standard part.

6. The prefabricated prestressed joint as described in claim 1, characterized in that: Multiple support plate structures are vertically connected between the front-end connecting plate (1) and the rear-end connecting plate (4).

7. The precast prestressed joint as described in claim 1, characterized in that: The inner edges of the front connecting plate (1) and the side connecting plate (2) are in contact with each other, forming a groove at the junction.

8. The precast prestressed joint as described in claim 1, characterized in that: The prestressing application device is a jack.

Images