CN113175222B - An installation method of an embedded prefabricated exterior wall panel component - Google Patents

Abstract

The present invention is an installation method of built-in prefabricated exterior wall panel components, which uses lifting equipment or vertical panels to enter the upper and lower floor structures at a certain inclination angle, erects the prefabricated exterior wall panel components, and then fixes them up, solving the problem of At present, the prefabricated exterior wall panel components, especially the prefabricated components of PC and AAC exterior wall panels, are difficult to install after the construction of the main structure, which greatly simplifies the construction process of construction projects and improves construction efficiency.

Description

An installation method of an embedded prefabricated exterior wall panel component

technical field

The invention belongs to the field of construction engineering, in particular to an installation method of an embedded prefabricated exterior wall panel component.

Background technique

Prefabricated buildings meet the requirements of building industrialization and green environmental protection, especially the industrial policy of green buildings and building industrialization in my country, and the demand for prefabricated buildings is increasing. The installation of prefabricated external wall panels is one of the main contents of prefabricated building construction, and the existing prefabricated external wall panels generally adopt the embedded installation design. The construction and installation of large prefabricated exterior wall panels such as PC and AAC panels can only be carried out with the help of large machinery and equipment due to the large size and weight of the components. In the case of embedded design, there is currently no The method is to stuff the prefabricated exterior wall panels under the beams, so it is generally used to install prefabricated exterior wall panels before the construction of the upper floors (that is, the main structure is constructed simultaneously), but this method seriously interferes with the existing process of the main structure construction And the working surface, resulting in extended construction period and reduced work efficiency. Therefore be badly in need of a kind of method that can be embedded and installed prefabricated exterior wall panel member after main structure construction.

Contents of the invention

Embedded installation of prefabricated exterior wall panels is a standard construction term, which refers to the installation of prefabricated exterior wall panels in the space enclosed by beams and columns on the upper and lower floors. Sometimes the sides of the prefabricated exterior wall panels are not columns, but other walls; the upper and lower sides may be beams or floors.

The object of the present invention is to provide a method for installing an embedded prefabricated exterior wall panel component, so as to solve the problems raised in the above-mentioned background technology.

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

Option One

A method for installing an embedded prefabricated exterior wall panel component, comprising an upper floor structure, a lower floor structure, a prefabricated exterior wall panel component, and connectors, the upper floor structure is a beam or a floor slab, and the lower floor structure is a floor slab or beam, prefabricated exterior wall installation method includes the following steps,

Step 1: Use the lifting equipment to lift the prefabricated exterior wall panel components, and make it fall to the top of the lower floor structure at an angle inclined to the vertical direction; wherein the lifting straps on the lifting equipment are fixed on both sides of the prefabricated exterior wall panel components, And there is a sling on one side to adjust the length; lifting equipment can be engineering tower cranes, car cranes, etc., usually two slings are used on each side (one sling can also be used), and the hoist is usually connected to the sling on one side to facilitate adjustment of the length of the sling. For the convenience of operation, the side sling close to the edge of the structural beam or slab on the upper floor is usually used as an adjustable length sling.

Step 2: Guide the lower end of the prefabricated exterior wall panel components above the installation position of the prefabricated exterior wall panel components of the lower floor structure; lower the prefabricated exterior wall panel components and drop them on the lower floor structure; guide the lower end of the prefabricated exterior wall panel components into the lower floor structure Auxiliary measures such as people pulling, wind ropes, hoists, and pull hooks can be used. When leading in, the lower end of the prefabricated exterior wall panel components needs to be separated from the structure of the lower floor.

Step 3: Adjust the length of the sling, remove the sling near the edge of the upper floor structure; use the lifting device to lift the unremoved sling to adjust the prefabricated exterior wall component to a vertical position; place the lower end of the prefabricated exterior wall panel on the lower floor structure At this time, if the hoist is connected to the sling, the hoist can be used to adjust the length of the sling, and with the lifting equipment, the sling close to the edge of the upper floor structure can be relaxed, and then the sling is removed while keeping the other side of the sling under stress. After removing one side of the sling, use the lifting device to lift the one side of the sling, and the prefabricated exterior wall panel can be vertical or nearly vertical. During this process, the lower ends of the prefabricated exterior wall panel elements are usually in contact with the lower structural floors. Before removing the sling near the edge of the upper floor structure, the lower end of the board can be temporarily connected to the connection to facilitate the riser.

Step 4: Connect and fix the connectors with the prefabricated exterior wall panel components, and remove the lifting equipment to complete the installation. The upper and lower ends of the prefabricated exterior wall panels are connected and fixed with the connectors fixed on the lower floor structure or the upper and lower floor structures. Before removing one side of the sling in step 3, the lower end of the prefabricated exterior wall panel component can be initially connected with the connector, so as to facilitate the erection of the prefabricated exterior wall panel component and ensure safety. If the prefabricated exterior wall panel components are not completely vertical in step 3, the prefabricated exterior wall panel components can be adjusted to be vertical by combining auxiliary means at this time. Generally, the prefabricated exterior wall panels and connectors are fixed, and then the lifting equipment is removed.

Preferably, the connecting piece is a connecting plate or an embedded part respectively fixed to the structure of the upper floor and the structure of the lower floor; or the connecting piece is a temporary brace fixed to the structure of the lower floor. The role of the connecting piece fixed on the connecting plate or embedded part of the upper floor structure and the lower floor structure is to fix the standing prefabricated exterior wall panel component, and the upper and lower ends of the prefabricated exterior wall panel component are respectively connected with the connecting piece. Temporary bracing is a general tool for vertical prefabricated components of prefabricated buildings. It is a support rod with adjustable length. Generally, one section is fixed to the structural floor of the lower floor, and the other end is connected to the prefabricated exterior wall panel components. It is necessary to connect two sets of support rods at the upper and lower ends of the prefabricated exterior wall panel components.

Option II

A method for installing an embedded prefabricated exterior wall panel component, comprising an upper floor structure, a lower floor structure, a prefabricated exterior wall panel component, and connectors, the upper floor structure is a beam or a floor slab, and the lower floor structure is a floor slab Or beam, the prefabricated exterior wall installation method includes the following steps, this installation method can be applied to install from the outdoor side at the same time, or install from the indoor side when the indoor floor slab is not constructed.

Step 1: Use lifting equipment to lift the prefabricated exterior wall panel components, and lift them at a certain angle with the vertical direction until the top of the prefabricated exterior wall panel components is close to and lower than the bottom of the upper floor structure; when the prefabricated exterior wall panels The panel is lifted at a certain angle, the main purpose is to facilitate step 2 to extend the upper end over the upper floor structural beam. If it is installed from the indoor side, the vertical height of the prefabricated wall panel after the inclination angle needs to be higher than the upper floor structural beam and the lower floor. The headroom at the top of the floor structure should be small.

Step 2: Guide the upper end of the prefabricated exterior wall panel member into or over the lower beam of the upper floor structure; lift the prefabricated outer wall panel member until the lower end of the prefabricated outer wall panel member is higher than the top surface of the lower floor structure;

Step 3: guide the lower end of the prefabricated exterior wall panel components into the lower floor structure above the installation position; lower the prefabricated exterior wall panel components and drop them on the lower floor structure; continue to lower the prefabricated exterior wall components, and adjust the prefabricated prefabricated exterior wall panel components, Make it in a vertical state; when the lower end of the prefabricated exterior wall panel component is guided to the installation position, the lifting strap will be located on the other side of the prefabricated exterior wall panel component, and will be in contact with the upper floor structure to bear the force, and the prefabricated exterior wall can be pulled The plate members are pulled vertically.

Step 4: Connect and fix the connectors with the prefabricated exterior wall panel components, and remove the lifting equipment.

The connecting piece is a connecting plate or embedded part fixed on the upper floor structure and the lower one; or the connecting piece is a connecting plate or embedded part fixed on the lower floor structure; or the connecting piece is fixed on the Temporary braces for the lower story structure.

third solution

A method for installing an embedded prefabricated exterior wall panel component, comprising an upper floor structure, a lower floor structure, a prefabricated exterior wall panel component, connectors, and a vertical plate frame, the upper floor structure is a floor slab or a beam, and the The lower floor structure is a slab or a beam, and the prefabricated exterior wall installation method includes the following steps,

Step 1: Use the lifting equipment to place the prefabricated exterior wall panel components on the vertical frame at a certain angle with the vertical direction; the vertical transportation to the floor can use the lifting equipment, or use the material elevator to transport to the designated floor.

Step 2: Transport the vertical panel frame and the prefabricated exterior wall panel components to the installation location on the structure of the lower floor; the horizontal transport tool can be assisted to transport the vertical panel frame to the position where the prefabricated external wall panel components need to be installed.

Step 3: Use jacking equipment to lift up the vertical frame, so that the vertical frame rotates around the lower end of the vertical frame to a vertical position; usually the jacking device uses a jack, and the lower end of the vertical frame is pushed to the lower floor structure or a rotatable shaft is installed at the lower end. The jacking equipment lifts the vertical panel frame close to the upper end, and drives the prefabricated exterior wall panel components to stand vertically through the vertical panel frame.

Step 4: Connect and fix the connecting piece with the prefabricated exterior wall panel components, and remove the stand frame.

The connecting piece is a connecting plate or embedded part fixed on the structure of the upper floor; or the connecting piece is a connecting plate or embedded part fixed on the structure of the lower floor; or the connecting piece is fixed on the lower floor Temporary braces for structures.

The vertical board frame includes a movable frame, a chassis and a jack, the movable frame is inclined at an angle to the horizontal plane, the chassis is placed horizontally, and the lower end of the movable frame is connected to one side of the chassis through a rotatable shaft. The two ends of the jack described above are respectively connected to the movable frame and the chassis through a rotatable shaft. The movable frame, the chassis, and the jack form a triangle. The purpose of the erection angle of the prefabricated exterior wall panels on the rack. Movable wheels for easy movement are installed under the chassis of the stand frame to achieve the purpose of easy movement. The movable frame and chassis are made of section steel and steel plate. Both the movable frame and the chassis are a plane structure (usually the outer contour is rectangular): the movable frame is 1.0-3.0m wide, 1.0-2.0m high, the chassis width closely matches the movable frame width, and the length is 1.0-2.0m. Both sides of the lower end of the movable frame are connected with the chassis through a rotating shaft. One or two jacks can be used. When one jack is used, it is arranged in the middle of the movable frame and the width of the chassis, and when two jacks are used, it is arranged on both sides.

The beneficial effects of the present invention are: the present invention solves the difficult problem of embedded installation of prefabricated exterior wall panel components, especially PC and AAC exterior wall slab prefabricated components after the construction of the main structure. It greatly simplifies the construction process of construction engineering and improves the construction efficiency.

Description of drawings

Fig. 1 is the schematic diagram of embodiment 1 of the present invention;

Fig. 2 is the schematic diagram of embodiment 2 of the present invention;

Fig. 3 is the schematic diagram of embodiment 3 of the present invention;

Fig. 4 is a schematic structural diagram of Embodiment 4 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

Please refer to Fig. 1, in an embodiment of the present invention, a method for installing an embedded prefabricated exterior wall panel component includes an upper floor structure 2, a lower floor structure 3, a prefabricated exterior wall panel component 1, and a structure fixed on the upper floor structure The lower upper connecting piece 7 and the lower connecting piece 8 fixed on the lower floor structure, the upper floor structure 2 is a beam, and the lower floor structure is a floor surface or a beam top. The upper connecting piece 7 and the connecting piece 8 are pre-embedded connecting plates, and the pre-embedded connecting plates are connected and fixed to the prefabricated exterior wall panel components through connecting bolts 9 .

In this embodiment, the prefabricated exterior wall panel member 1 is installed from the outdoor side. The installation is implemented according to the following steps and methods:

Step 1: Referring to ① in Figure 1, first use the lifting equipment to drop the prefabricated exterior wall panel member 1 from the outdoor side to the top of the lower floor structure 3 at an angle inclined to the vertical direction; wherein the first suspension belt 5 on the lifting equipment , The second suspenders 6 are fixed on both sides of the prefabricated exterior wall panel member 1, each side uses two suspenders, and the top of two suspenders 6 on one side of the room is connected to one upside-down chain hoist. The lifting equipment is engineering tower crane.

Step 2: Referring to ② in Figure 1, hook the lower end of the prefabricated exterior wall panel component 1 with the hook 10 and guide it to the upper part of the installation position of the prefabricated exterior wall panel component 1 on the lower floor structure 3; then control the tower crane to lower the prefabricated exterior wall The plate member 1 falls on the lower floor structure 3 . Drag hook 10 adopts steel bar to make.

Step 3: Referring to ③ in Figure 1, use the inverted chain hoist to lower the second sling 6 on the indoor side; then use the lifting device to lift the first sling 5 on the outside to adjust the prefabricated exterior wall component 1 to a vertical position, and install the prefabricated exterior wall Bolts 9 are connected to the lower end of the plate member 1 . Take off the second sling 6 on the indoor side, utilize the hoisting device to continue to mention the first sling 5 on the outdoor side, and utilize the pull hook 10 to cooperate with the prefabricated exterior wall panel member 1 to stand up to the vertical state as required.

Step 4: Referring to ④ in Figure 1, fix the upper connector 7 and the lower connector to the prefabricated exterior wall panel member 1 respectively with bolts 9, and then remove the first strap 5 on the outdoor side to complete the installation.

Example 2

Please refer to Fig. 2, in the embodiment of the present invention, comprise and be provided with upper floor structure 2, lower floor structure 3, prefabricated exterior wall panel member 1, the connector that is fixed on the lower floor structure 3, described upper floor structure 2 is beam Or the floor, the lower floor structure 3 is a floor surface or a beam top. The connecting piece is a temporary diagonal brace 11 . This embodiment is installed from the outdoor side. The installation is implemented according to the following steps and methods:

Step 1: Referring to ① in Figure 2, use the lifting equipment to lift the prefabricated exterior wall panel component 1 at an angle inclined to the vertical direction until the upper end of the prefabricated exterior wall panel component 1 is located below the upper floor structure 2. The lifting equipment is a tower crane.

Step 2: Referring to ② in Figure 2, pull the upper end of the prefabricated exterior wall panel member 1 into the upper floor structural beam 2 with the pull hook 10; then lift the prefabricated exterior wall panel component 1 until the prefabricated exterior wall panel component 1 The lower end is higher than the top surface of the lower floor structure 3 .

Step 3: Referring to ③ in Figure 2, pull the lower end of the prefabricated exterior wall panel member 1 into the upper part of the installation position in the lower floor structure 3 with the pull hook 10; lower the prefabricated outer wall panel member 1 and drop it on the lower floor structure 3; continue to descend Prefabricate the exterior wall component 1, and adjust the angle of the prefabricated exterior wall panel component 1 so that it is in a vertical state. When the lower end of the prefabricated exterior wall panel component 1 is guided above the installation position, the first hoisting strap 5 will be located on the other side of the prefabricated exterior wall panel component 1, and will be in contact with the upper floor structure 2 to bear force, and the prefabricated exterior wall panel component can be lifted by this force. The wall panel member 1 is pulled straight and vertically.

Step 4: Referring to ④ in Figure 2, connect and fix the temporary diagonal braces 11 of the connectors to the upper and lower ends of the prefabricated exterior wall panel member 1 respectively; then remove the first lifting strap 5 to complete the installation.

Example 3

Please refer to Fig. 3 , in an embodiment of the present invention, a method for installing an embedded prefabricated exterior wall panel component includes an upper floor structure 2, a lower floor structure 3, a prefabricated exterior wall panel component 1, and a structure fixed on the lower floor structure. The connector on the top also includes the stand frame 4. The upper floor structure 2 is a floor slab or a beam, and the lower floor structure 3 is a floor slab or a beam. The connecting piece is a temporary diagonal brace 11 .

This embodiment is installed from the indoor side. The installation is implemented according to the following steps and methods:

Step 1: Referring to ① in Fig. 3, use the lifting equipment to place the prefabricated exterior wall panel member 1 on the vertical panel frame 4 at an angle inclined to the vertical direction. Riser 4 is pre-placed on the unloading platform of the floor to be installed, and the hoisting equipment is an engineering tower crane.

Step 2: Referring to ② in Figure 3, use an electric forklift to transport the vertical panel frame 4 together with the prefabricated exterior wall panel member 1 to the required installation position on the lower floor structure 3, and position it accurately.

Step 3: Referring to ③ in Figure 3, use the jacking device to jack up the vertical frame 4, so that the vertical frame 4 rotates around the lower end of the vertical frame 4 and stands up to a vertical position. The jacking equipment adopts a jack, and the lower end of the vertical panel frame 4 is pushed to the lower floor structure 3. The jacking equipment lifts the vertical panel frame 4 near the upper end, and the vertical panel frame 4 drives the prefabricated exterior wall panel member 1 to stand up to vertical state.

Step 4: Referring to ④ in Figure 3, connect and fix the upper and lower ends of the prefabricated exterior wall panel components 1 with temporary inclined support rods 11, and then remove the vertical panel frame 4.

Please refer to FIG. 4 , the stand frame described in this embodiment includes a movable frame 12 , a chassis 13 and a jack 14 . Described movable frame 12 is inclined angle with horizontal plane, and described movable frame 12 lower ends and one side of chassis 13 are connected by rotatable shaft. The two ends of the jack 14 are respectively connected with the movable frame 12 and the chassis 13 through rotatable shafts. The movable frame 12, the chassis 13, and the jack 14 form a triangle. When the length of the jack 14 is changed, the angle between the movable frame 12 and the horizontal plane can be adjusted to achieve the adjustment of the standing angle of the prefabricated exterior wall panel components placed on the movable frame 12. the goal of. Movable frame 12 and chassis 13 adopt channel steel and steel plate to make. Both the movable frame 12 and the chassis 13 are rectangular planar structures, and channel steel is arranged along the diagonal. The movable frame is 1.4m wide, 1.8m high, the chassis is 1.5m wide, and 1.5m long. Both sides of movable frame 12 lower ends are connected with chassis by 13 rotatable shafts. Adopt a jack 14, jack 14 one end and movable frame 12 diagonally set channel steel cross point to be connected with movable shaft by steel plate, the other end is connected with chassis 13 outer channel steel middle parts by steel plate and movable shaft. Movable wheels 15 are installed under the described stand frame chassis 13, so as to reach the purpose of moving easily.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (2)

1. An installation method for an embedded prefabricated exterior wall panel component, characterized in that: it includes an upper floor structure, a lower floor structure, a prefabricated exterior wall panel component, and a connector, the upper floor structure is a beam or a floor slab, and the The lower floor structure is a slab or a beam, and the prefabricated exterior wall installation method includes the following steps, Step 1: Use the lifting equipment to lift the prefabricated exterior wall panel components, and make it fall to the top of the lower floor structure at an angle inclined to the vertical direction; wherein the lifting straps on the lifting equipment are fixed on both sides of the prefabricated exterior wall panel components, And there is a sling on one side to adjust the length; Step 2: guide the lower end of the prefabricated exterior wall panel component to the installation position of the prefabricated exterior wall panel component of the lower floor structure; lower the prefabricated exterior wall panel component and drop it on the lower floor structure; Step 3: Adjust the length of the sling, and remove the sling near the edge of the upper floor structure; use the lifting device to lift the unremoved sling to adjust the prefabricated exterior wall components to a vertical position; Step 4: Connect the connectors to the prefabricated exterior wall panel components The connection is fixed, and the lifting equipment is removed to complete the installation. 2. The installation method of a built-in prefabricated exterior wall panel member according to claim 1, characterized in that: the connecting piece is a connecting plate or embedded piece fixed to the upper floor structure and the lower floor structure respectively ; Or the connector is a temporary brace fixed to the structure of the lower floor.