CN217580664U - Construction device with post-pouring section for prefabricated shear wall - Google Patents

Abstract

The utility model discloses a construction device for a prefabricated shear wall with a post-casting section. The device comprises a prefabricated shear wall, a fixed support, a lifting support and an adjustable oblique support; two sides of the bottom of the prefabricated shear wall are respectively provided with The fixed end and the adjustment end; the fixed support is connected to the fixed end and the floor; the lifting support is arranged opposite the fixed support and connected to the adjustment end, and a lift drive mechanism that drives the adjustment end to rise and fall is installed; the adjustable inclined support includes at least one One end of the inclined support is connected to the floor, and the other end is connected to the front of the shear wall, so as to adjust the out-of-plane direction position of the prefabricated shear wall. Use the fixed support and the lifting support to support the prefabricated shear wall upward, adjust the height of the prefabricated shear wall by using the lifting drive mechanism of the lifting support, and use the adjustable inclined support to maintain the horizontal stability of the prefabricated shear wall and maintain the out-of-plane direction. Make adjustments so that the components reach the construction position accurately and provide good conditions for construction.

Description

A construction device for prefabricated shear wall with post-cast section

technical field

The utility model relates to the technical field of building construction, in particular to a construction device for a prefabricated shear wall with a post-cast section.

Background technique

Compared with traditional building structures, prefabricated structures have huge economic, technical and environmental advantages. At present, my country is vigorously promoting prefabricated buildings, and many provinces and cities have made specific requirements for the proportion of prefabricated buildings in new construction. The main application forms of prefabricated structures include prefabricated shear wall structures and prefabricated frame structures. Among them, prefabricated shear wall structures have high vertical bearing capacity and lateral stiffness resistance, and prefabricated products have good integrity, so they are more and more popular at home and abroad. The attention of developers and owners.

In practical engineering, there are still some difficulties in the construction of prefabricated shear walls. Article 5.4.5 of "Technical Standards for Prefabricated Concrete Buildings" (GBT 51231-2016) stipulates that when longitudinal steel bars are connected by extruded sleeves, post-casting sections should be reserved between the connected prefabricated components, and post-casting sections should be reserved. The height or length of the segment should be determined according to the extrusion sleeve joint installation process. Due to the single weight of the prefabricated shear wall, the tower crane will be occupied for a long time during the extruded sleeve connection and the post-casting of concrete, resulting in a decrease in the overall efficiency of the construction. In addition, the position of the precast shear walls often needs to be further adjusted before extruded sleeve connections and post-cast concrete. If the tower crane is used for adjustment, it not only has higher requirements on the operation of the tower crane workers, but also has certain hidden dangers in construction safety.

Therefore, it is necessary to improve the existing construction devices and construction methods of prefabricated shear walls.

Utility model content

The primary purpose of the present utility model is to overcome the deficiencies of the above-mentioned prior art, and to provide a construction device for a prefabricated shear wall with a post-cast section, which is beneficial to the stable placement of the prefabricated shear wall, and can be used for prefabricated shear walls according to installation needs. The fine-tuning of the position of the components is beneficial to improve the construction efficiency and construction safety.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A construction device for a prefabricated shear wall with a post-cast section, comprising a prefabricated shear wall, a fixed support, a lifting support and an adjustable inclined support;

Both sides of the bottom of the prefabricated shear wall are respectively provided with a fixed end and an adjustment end, and the fixed end is provided with a pre-buried channel;

The top of the fixed support is hinged to the fixed end, and the bottom of the fixed support is fixed to the floor;

The lifting support is arranged opposite to the fixed support and is connected with the adjustment end, and is installed with a lift drive mechanism for driving the adjustment end to rise and fall;

The adjustable inclined support is arranged on the front side of the prefabricated shear wall, and includes at least one inclined support, one end of the inclined support is connected to the floor, and the other end is connected to the front of the prefabricated shear wall for adjusting The out-of-plane orientation of the precast shear wall.

As a preferred solution, the lifting support includes a pair of adjustment support legs and a square-section support; the two adjustment support legs are fixed on the floor and are respectively arranged on the front and rear sides of the adjustment end, each of which is The adjusting support legs include a bottom plate fixed on the floor and a vertical rod standing on the bottom plate, the vertical rod is provided with a vertical hole, and the square cross-section support member transversely passes through the vertical holes of the two vertical rods and upwards. Abutting against the adjusting end, the elevating drive mechanism is installed between the bottom plate and the square-section support.

As a preferred solution, the lift drive mechanism is a jack.

As a preferred solution, a pair of adjustable oblique supports are included, and the two adjustable oblique supports are arranged at intervals in the left and right directions.

As a preferred solution, each adjustable inclined support includes two inclined supports, the lower ends of the two inclined supports are connected to the same adjustable inclined support, and the two inclined supports are connected to the prefabricated shear force. The connection on the front of the wall is set up and down at intervals.

As a preferred solution, an embedded nut is arranged on the front of the prefabricated shear wall, and the upper end of the support member is hinged with the embedded nut.

As a preferred solution, the fixed support member includes a fixed support leg and a circular cross-section support member; the two fixed support legs are respectively arranged on the front and rear sides of the adjustment end, and the circular cross-section support member is along the front-rear direction. Passing through the fixed end, its two ends are respectively locked on the top of the corresponding fixed support legs.

As a preferred solution, it also includes a first laser and a second laser; the first laser is arranged on one side in the left-right direction of the prefabricated shear wall to detect the in-plane direction of the prefabricated shear wall position; the second laser is arranged on the front side of the prefabricated shear wall to detect the out-of-plane position of the prefabricated shear wall.

Based on the above-mentioned construction method of the construction device of the prefabricated shear wall with the post-cast section, the construction method includes the following steps:

According to the shear wall design parameters, set the benchmark placement position of the prefabricated shear wall, and set the projection line of the prefabricated shear wall on the floor in the benchmark placement position as the shear wall positioning line; set the shear wall in the benchmark placement position. The projection line of the centroid line of the wall on the embedded tunnel on the floor is set as the tunnel positioning line;

Place the first laser on the extension line of the shear wall positioning line, so that the shear wall positioning line is located in the vertical sweep plane of the first laser; place the second laser on the extension line of the channel positioning line to calculate the channel The height of the positioning line from the floor, and the second laser is raised according to the height, so that the hole positioning line is located in the vertical sweep plane of the second laser;

Set up pre-embedded tunnels at the fixed end of the prefabricated shear wall, and install pre-embedded nuts on the front of the prefabricated shear wall;

Install a fixed support at the fixed end of the prefabricated shear wall;

Install the lift support on the floor, and adjust the height of the lift drive mechanism to make the length direction of the circular section support horizontal;

Install adjustable inclined supports on the floor;

Slowly lower the prefabricated shear wall until the bottom of the fixed support leg falls to the floor, adjust the position of the centroid of the pre-embedded hole in the wall by the second laser, and fix the fixed support leg on the floor, the prefabricated shear wall The adjustment end of the shear wall falls on the square circular section support, and the height of the lifting drive mechanism is adjusted to make the prefabricated shear wall stable;

Connect the top of the adjustable inclined support with the embedded nut, and remove the spreader after the prefabricated shear wall is stable;

Adjust the in-plane direction position of the prefabricated shear wall through the lifting drive mechanism;

The out-of-plane position of the prefabricated shear wall is positioned by the first laser, and the out-of-plane position of the prefabricated shear wall is adjusted by adjusting the length of the adjustable inclined support;

Rebar connection and post-casting of concrete are carried out. After the concrete strength meets the requirements, the fixed supports, lifting supports and adjustable inclined supports are removed.

As a preferred solution, the method further includes the following steps: before the prefabricated shear wall is fabricated, the self-weight of the prefabricated shear wall is calculated, and then the circular section supports, the square section supports, the fixed support legs and the adjustment support legs are adjusted. Carry out a carrying capacity review.

Compared with the prior art, the utility model has the following beneficial effects:

1. The construction device provided by the utility model utilizes the fixed support and the lifting support to bear the self-weight of the prefabricated shear wall, utilizes the lifting drive mechanism of the lifting support to adjust the height of the prefabricated shear wall, and utilizes the adjustable oblique support to maintain the prefabricated shear force. The horizontal stability of the wall and the adjustment of the out-of-plane direction, so that the components can reach the construction position accurately, and provide good conditions for the construction;

2. Arrange the first laser and the second laser outside the prefabricated shear wall, and use the first laser to detect the out-of-plane orientation of the prefabricated shear wall, and use the second laser to detect the out-of-plane orientation of the prefabricated shear wall. , so as to ensure the accurate installation of prefabricated shear walls;

3. The utility model solves the problem that the tower crane is occupied for a long time during the hoisting process of the prefabricated shear wall, and greatly improves the construction efficiency;

4. The utility model stably supports the prefabricated shear wall vertically and laterally, providing a comprehensive safety guarantee for workers in construction;

5. Each component of the present utility model can be prefabricated in a component processing plant, the component types are few, and the structure is concise and clear, which is beneficial to improve the installation speed.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

Fig. 1 is the perspective view of the construction equipment of the prefabricated shear wall with post-cast section in the present utility model;

Fig. 2 is the front view of the construction equipment of the prefabricated shear wall with post-cast section in the utility model;

Fig. 3 is the side view of the construction equipment of the prefabricated shear wall with post-cast section in the present invention;

Fig. 4 is the schematic diagram of laser instrument auxiliary positioning in the present utility model;

5 is a side view of another perspective of the laser instrument assisted positioning in the present invention;

In the picture:

1. Prefabricated shear wall; 2. Fixed support; 21. Fixed support leg; 22. Circular section support; 23. Nut; 3. Lifting support; 4. Adjustable inclined support; 11. Embedded nut; 12. Fixed end; 13. Adjusting end; 31. Adjusting support leg; 32. Square section support; 311, Bottom plate; 312, Vertical rod; 3121, Vertical hole; 33. Lifting drive mechanism; 5. The first laser; 6. The second laser; 100, the floor; L1, the tunnel positioning line; L2, the shear wall positioning line.

Detailed ways

In order to facilitate a better understanding of the purpose, structure, features and efficacy of the present invention, the present invention will now be further described with reference to the accompanying drawings and specific embodiments. It should be noted that the features shown in the figures are not necessarily drawn to scale. Furthermore, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. As used in this disclosure, "first," "second," and similar terms do not denote any order, quantity, or importance, but are merely used to distinguish the various components. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", "Front", "Rear", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also correspond to to change. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

Example

Referring to FIGS. 1-3 , this embodiment provides a construction device for a prefabricated shear wall with post-cast sections, which is used to install the prefabricated shear wall 1 on a corresponding floor 100 . The construction device includes a prefabricated shear wall 1 , a fixed support 2 , a lifting support 3 and an adjustable inclined support 4 .

Two sides of the bottom of the prefabricated shear wall 1 are respectively provided with a fixed end 12 and an adjustment end 13 , which are respectively used for butt joint with the fixed support 2 and the lifting support 3 . The fixed end 12 is provided with a pre-embedded channel 14 for installing the fixed support 2 . The front of the prefabricated shear wall 1 is provided with a pre-embedded nut 11 for connecting the adjustable inclined support 4 after being hoisted in place.

The top of the fixed support 2 is hinged to the fixed end 12 , and the bottom of the fixed support 2 is fixed to the floor. The fixed support member 2 includes a pair of fixed support legs 21 and a circular cross-section support member 22; the two fixed support legs 21 are respectively disposed on the front and rear sides of the adjustment end 13, and the circular cross-section support member 22 The fixed end 12 passes through the fixed end 12 in the front-rear direction, and the fixed end 12 can rotate around the circular cross-section support member 22. The two ends of the circular cross-section support member 22 respectively pass through multiple positioning holes corresponding to the fixed support legs 21, and are locked and fixed by nuts 23. .

The lifting support member 3 is disposed opposite to the fixed support member 2 and is connected to the adjustment end 13 and is provided with a lift drive mechanism for driving the adjustment end 13 to rise and fall. The lifting support 3 includes a pair of adjusting support legs 31 and a square-section support 32; the two adjusting support legs 31 are fixed on the floor and are respectively arranged on the front and rear sides of the adjusting end 13 of the prefabricated shear wall 1, Each of the adjustment support legs 31 includes a bottom plate 311 fixed on the floor and a vertical rod 312 standing on the bottom plate 311. The bottom plate 311 is provided with a plurality of supporting claws, which is beneficial to increase the contact area with the floor and improve the stability; The vertical rods 312 are provided with vertical holes 3121 to form slide rails for the square-section supports 32 to slide up and down. The square-section supports 32 transversely pass through the vertical holes 3121 of the vertical rods 312 and support the adjustment end 13. The lift drive mechanism is installed between the bottom plate 311 and the square-section support 32 . Through the height adjustment of the two lift drive mechanisms 33 , the square-section support 32 can be lifted and lowered, and then the adjustment end 13 of the prefabricated shear wall 1 can be adjusted vertically. In this embodiment, the lift driving mechanism 33 is a jack.

The adjustable inclined support 4 is arranged on the front side of the prefabricated shear wall 1, and includes two inclined supports 41, one end of each inclined support 41 is connected to the floor 100, and the other end is connected to the prefabricated shear force The front face of the wall 1 is used to adjust the out-of-plane direction position of the prefabricated shear wall 1; each adjustable inclined support 4 includes two inclined supports 41, and the same adjustable inclined support 4 has two inclined supports The lower ends of the members 41 are connected and fixed to the floor 100 , and the upper ends of the two inclined support members 41 are spaced up and down and connected with the corresponding embedded nuts 11 . In this embodiment, a total of two adjustable inclined supports 4 are provided, and the two adjustable inclined supports 4 are arranged at intervals in the left and right directions to ensure structural balance and increase construction safety.

As shown in FIG. 4-5 , in order to improve the positioning accuracy of the prefabricated shear wall 1 , the construction device is further provided with a first laser 5 and a second laser 6 . Before hoisting, according to the shear wall design parameters, set the reference placement position of the prefabricated shear wall 1, and set the projection line of the prefabricated shear wall 1 on the floor in the reference placement position as the shear wall positioning line L2; The projection line of the centroid line of the shear wall on the pre-embedded tunnel in the benchmark placement position is set as tunnel location line L1, and the tunnel location line L1 is perpendicular to the shear wall location line L2, in a cross shape; The first laser 5 is placed on the extension line of the shear wall positioning line L2, so that the shear wall positioning line L2 is located in the vertical sweep plane of the first laser instrument 5; the second laser is placed on the extension line of the tunnel positioning line L1 instrument 6 , so that the channel positioning line is located in the vertical sweep plane of the second laser instrument 6 . When the prefabricated shear wall 1 is hoisted to the designated position on the floor, the first laser 5 detects the in-plane position of the prefabricated shear wall 1 , and the second laser 6 detects the out-of-plane position of the prefabricated shear wall 1 .

The present embodiment also provides a construction method based on the above-mentioned construction device of the prefabricated shear wall with post-cast section, comprising the following steps:

S1. According to the shear wall design parameters, set the benchmark placement position of the prefabricated shear wall 1, and set the projection line of the prefabricated shear wall 1 on the floor in the benchmark placement position as the shear wall positioning line L2; set the benchmark In the placement position, the projection line of the centroid line of the shear wall on the pre-embedded tunnel 14 on the floor is set as the tunnel positioning line; the first laser 5 is placed on the extension line of the shear wall positioning line L2, so that the shear force The wall positioning line L2 is located in the vertical sweep plane of the first laser 5; the second laser 6 is placed on the extension line of the hole positioning line L1, so that the hole positioning line L1 is located in the vertical sweep plane of the second laser 6 ;

S2. Before the prefabricated shear wall 1 is produced, the self-weight of the prefabricated shear wall 1 is calculated, and then the bearing capacity of the circular section support 22, the square section support 32, the fixed support legs and the adjustment support legs 31 is checked.

S3. When the prefabricated shear wall 1 is processed by the component factory, a pre-embedded tunnel 14 is opened at the fixed end 12 of the pre-fabricated shear wall 1, and a pre-embedded nut 11 is installed on the front of the prefabricated shear wall 1;

S4. After the prefabricated shear wall 1 is hoisted to the construction position, the fixed support 2 is installed on the fixed end 12 of the prefabricated shear wall 1, the circular section support 22 is passed through the reserved hole, and then the two The two fixed support legs are respectively fitted into the two ends of the circular cross-section support member 22 and fixed by tightening the nuts 23 .

S5, the lifting support 3 is installed on the floor, and the length direction of the circular section support 22 is horizontal by adjusting the height of the lifting drive mechanism 33;

S6. Install two sets of adjustable inclined supports 4 on the floor, wherein the interval distance of the adjustable inclined supports 4 is the same as the left and right distances of the embedded nuts 11 on the prefabricated shear wall 1;

S7. Slowly lower the prefabricated shear wall 1 until the bottom of the fixed support leg falls to the floor, adjust the position of the centroid of the pre-embedded hole in the wall by the second laser 6, and fix the fixed support leg on the floor. The adjustment end 13 of the prefabricated shear wall 1 falls on the square circular section support 22, and the height of the lifting drive mechanism is adjusted so that the prefabricated shear wall 1 is placed stably;

S8. Connect the top of the adjustable inclined support 4 with the embedded nut 11. After the prefabricated shear wall 1 is stabilized, remove the tower crane sling, and the tower crane can perform other work, which can improve the utilization rate of the spreader;

S9. Adjust the in-plane direction position of the prefabricated shear wall 1 through the lift drive mechanism;

S10. Position the prefabricated shear wall 1 in the out-of-plane direction by using the first laser 5, and adjust the out-of-plane position of the prefabricated shear wall 1 by rotating the adjustable inclined support 4;

S11 , performing procedures such as steel bar connection and post-casting concrete, and after the concrete strength meets the requirements, remove the fixed support 2 , the lifting support 3 and the adjustable inclined support 4 .

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. a construction device of the prefabricated shear wall with post-casting section, is characterized in that, comprises prefabricated shear wall, fixed support, lifting support and adjustable oblique support; Both sides of the bottom of the prefabricated shear wall are respectively provided with a fixed end and an adjustment end, and the fixed end is provided with a pre-buried channel; The top of the fixed support is hinged to the fixed end, and the bottom of the fixed support is fixed to the floor; The lifting support is arranged opposite to the fixed support and is connected with the adjustment end, and is installed with a lift drive mechanism for driving the adjustment end to rise and fall; The adjustable inclined support is arranged on the front side of the prefabricated shear wall, and includes at least one inclined support, one end of the inclined support is connected to the floor, and the other end is connected to the front of the prefabricated shear wall for adjusting The out-of-plane orientation of the precast shear wall. 2. A construction device for a prefabricated shear wall with a post-casting section according to claim 1, wherein the lifting support comprises a pair of adjusting support legs and a square-section support; The adjustment support legs are fixed on the floor and are respectively arranged on the front and rear sides of the adjustment ends. Each adjustment support leg includes a bottom plate fixed on the floor and a vertical rod standing on the bottom plate, and the vertical rods are arranged vertically. The square-section support member transversely passes through the vertical holes of the two vertical rods and abuts the adjustment end upward, and the lift driving mechanism is installed between the bottom plate and the square-section support member. 3 . The construction device for a prefabricated shear wall with a post-casting section according to claim 1 , wherein the lift driving mechanism is a jack. 4 . 4 . The construction device of a prefabricated shear wall with a post-casting section according to claim 1 , characterized in that it comprises a pair of adjustable inclined supports, and the two adjustable inclined supports are arranged at intervals in the left and right directions. 5 . 5. The construction device of a prefabricated shear wall with a post-casting section according to claim 4, wherein each of the adjustable inclined supports comprises two inclined supports, and the same adjustable inclined support The lower ends of the two inclined supports are connected, and the joints between the two inclined supports and the front face of the prefabricated shear wall are arranged at intervals up and down. 6 . The construction device of a prefabricated shear wall with a post-cast section according to claim 1 , wherein a prefabricated nut is arranged on the front of the prefabricated shear wall, and the upper end of the support is connected to the Embedded nut hinged. 7 . The construction device for a prefabricated shear wall with a post-cast section according to claim 1 , wherein the fixed support comprises a fixed support leg and a circular section support; two of the fixed supports The support legs are respectively arranged on the front and rear sides of the adjustment end, the circular cross-section support member passes through the fixed end in the front and rear directions, and the two ends thereof are respectively locked on the tops corresponding to the fixed support legs. 8 . The construction device for a prefabricated shear wall with a post-cast section according to claim 1 , further comprising a first laser and a second laser; the first laser is arranged on the One side in the left and right direction of the prefabricated shear wall is used to detect the in-plane direction position of the prefabricated shear wall; the second laser is arranged on the front side of the prefabricated shear wall to detect the out-of-plane position of the prefabricated shear wall direction location.

Images