CN103306371B - Assembled-type house PC prefabricated units fabrication and installation structure - Google Patents

Abstract

The invention discloses an assembly type residential PC prefabricated component production and installation structure, which mainly consists of an installation limit system, a support and fixing system, a demoulding and hoisting system, a formwork installation pair tie rod connection system, a leveling system and "I "Type hanging composition. During the concrete pouring construction of the prefabricated component, the steel bolt sleeve is pre-embedded in the prefabricated component according to the designed position, and the end of the sleeve is flush with the surface of the concrete component. Use embedded sleeves of different specifications as connecting connectors to hoist, fix, and limit installation of prefabricated components. In order to meet the needs of hoisting and installation of prefabricated components, different specifications and models of straight thread sleeves are pre-embedded in the prefabricated components for hoisting and installation tie.

Description

Manufacture and installation structure of PC prefabricated components for prefabricated houses

technical field

The invention relates to a fabrication and installation structure of prefabricated PC components of an assembled house.

Background technique

In the design and construction drawings of PC prefabricated components of prefabricated houses, usually only the width, height, plate thickness and shape size of the components, steel bar specifications, reserved steel bars, concrete strength grades and other self-information are indicated. It cannot be used for processing, production, hoisting and installation. It is necessary to carry out in-depth design of PC prefabricated components, determine the hoisting and installation plan, draw detailed drawings, determine the selection, positioning and methods of various reserved and pre-embedded components, and clarify the details of the node methods, so that the prefabricated components have the functions of hoisting, installation and use.

Contents of the invention

The technical problem to be solved by the present invention is to provide a prefabricated residential PC prefabricated component manufacturing and installation structure with simple design, convenient use, high installation accuracy and improved component installation efficiency.

In order to achieve the above technical effects, the present invention discloses a manufacturing and installation structure of prefabricated residential PC components, including:

An installation limit system, the installation limit system includes a plurality of first sleeves, the first sleeves are pre-embedded on the top side elevation of the prefabricated component, and a plurality of limit angle steels are connected by bolts;

A support and fixation system, the support and fixation system includes a plurality of second sleeves, the second sleeves are pre-embedded in the lower part and the upper part of the prefabricated component respectively, and the second sleeves in the lower part of the prefabricated component are connected with a plurality of steel bracket, the second sleeve on the upper part of the prefabricated component is connected with a plurality of adjustable braces through bolts;

A demoulding and hoisting system, the demoulding and hoisting system includes a plurality of third sleeves, the third sleeves are pre-embedded in the prefabricated component, and a plurality of hoisting steel plate connectors are connected by bolts;

A formwork installation tie rod connection system, the formwork installation tie rod connection system includes a plurality of fourth sleeves, the fourth sleeves are pre-embedded at the joint between the prefabricated component and the cast-in-place structure, and are connected with a plurality of tie rods.

A further improvement of the present invention is that the structure further includes a leveling system, the leveling system includes a plurality of fifth sleeves, the fifth sleeves are pre-embedded on the top of the prefabricated component, and are connected with a plurality of adjusting bolts .

A further improvement of the present invention is that a 10mm thick steel plate is laid on the bottom of the upper prefabricated component corresponding to the adjusting bolt.

The further improvement of the present invention is that a plurality of "I" type hanging nails are pre-embedded on the top of the prefabricated component. The model of the "I" type hanging nails is M20×240mm, and a Two "U"-shaped φ10HPB300 steel bars are anchored, with an anchorage length of 30d, and the pre-embedded installation of the "I"-shaped hanging nails uses matching special rubber waves.

The further improvement of the present invention is that the lower part of each sleeve is welded with two φ10HPB300 steel bars for anchorage, and the anchorage length is 25d.

Due to the adoption of the above technical scheme, the present invention has the following beneficial effects: by embedding the steel bolt sleeve in the prefabricated component according to the designed position during the concrete pouring construction of the prefabricated component, the end of the sleeve and the surface of the concrete component flush. Use embedded sleeves of different specifications as connecting connectors to hoist, fix, and limit installation of prefabricated components. In order to meet the needs of hoisting and installation of prefabricated components, straight thread sleeves of different specifications and models are pre-embedded in prefabricated components for hoisting and installation tie.

Description of drawings

Fig. 1 is the facade design diagram of the fabrication and installation structure of the PC prefabricated component of the prefabricated house of the present invention.

Fig. 2 is a schematic diagram of the installation limit system of the fabrication and installation structure of the PC prefabricated component of the prefabricated house of the present invention.

Fig. 3 is a schematic diagram of the limit steel plate in the installation limit system of the fabrication and installation structure of the PC prefabricated component of the prefabricated house according to the present invention.

Fig. 4 is a schematic diagram of the supporting and fixing system for the manufacturing and installation structure of the PC prefabricated component of the prefabricated house according to the present invention.

Fig. 5 is a schematic diagram of the installation plane of the "I" type hanging nail of the fabrication and installation structure of the PC prefabricated component of the prefabricated house of the present invention.

Fig. 6 is a sectional view of the installation plane of the "I" type hanging nail of the fabrication and installation structure of the PC prefabricated component of the prefabricated house of the present invention.

Fig. 7 is a schematic bottom view of the upper prefabricated components of the leveling system for manufacturing and installing the PC prefabricated components of the prefabricated house according to the present invention.

Fig. 8 is a schematic top view of the lower prefabricated components of the leveling system for manufacturing and installing the PC prefabricated components of the prefabricated house according to the present invention.

Fig. 9 is a schematic diagram of a leveling system for fabricating and installing a PC prefabricated component of a prefabricated house according to the present invention.

FIG. 10 is a sectional view of FIG. 9 .

Fig. 11 is a schematic view of the use state of the leveling system for manufacturing and installing the PC prefabricated component of the prefabricated house according to the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figures 1 to 11, the fabrication and installation structure of the prefabricated residential PC components of the present invention is mainly composed of an installation limit system, a support fixing system, a demoulding and hoisting system, a formwork installation pair tie rod connection system, an adjustment Consists of flat system and "I" type hanging nails.

According to the construction drawings of prefabricated components, carry out in-depth design on the drawings, determine the shape, size and plate thickness of components; determine the name, number and quantity of components; determine the detailed node methods of prefabricated components;

According to the shape characteristics of each component, determine the installation and hoisting scheme of each component. Choose to determine the type, location, and quantity of lifting nails for component hoisting and installation, embedded sleeves, and the number and location of other reserved holes and embedded parts. According to the design plan, the force state of the component hoisting and installation process and the supporting components are checked and calculated.

1) Use embedded sleeves of different specifications as connecting connectors to hoist, fix, and limit installation of prefabricated components. In order to meet the needs of hoisting and installation of prefabricated components, different specifications and models of straight thread sleeves are pre-embedded in the prefabricated components for hoisting and installation tie.

There are three main types of embedded sleeves: M16×50mm, M14×50mm, M20×150mm, and the wall thickness is 4mm. The lower part of the embedded sleeve is welded with 2 φ10HPB300 steel bars for anchorage, and the anchorage length is 25d.

The selection and function of the embedded sleeve are as follows:

As shown in Figure 2 and Figure 3, install the first sleeve 11 in the limit system: install the limit sleeve, the model is M16×50mm, embedded in the top side elevation of the prefabricated component 101, using bolts and the first The sleeve 11 fixes a limit angle steel 110 on the top of the lower prefabricated component 101, making it close to the lower prefabricated component 101; The panels of the lower prefabricated components 101 are on the same plane, which improves the installation accuracy and speed.

As shown in Figure 4, the second sleeve 12 of the supporting and fixing system: component installation and fixing connection sleeve, the model is M16×50mm, which are embedded in the lower and upper parts of the prefabricated component 101 respectively, and the second sleeve 12 at the lower part of the prefabricated component 101 The lower part of the PC prefabricated component 101 is fixed by connecting multiple steel brackets 121 with bolts; the second sleeve 12 on the upper part of the prefabricated component 101 is connected with multiple adjustable braces 122 by bolts to adjust the verticality of the prefabricated component 101 and perform temporary fixation.

The third sleeve 13 of the demoulding and hoisting system: the demoulding and hoisting sleeve, the model is M20×150mm, and the bolts and the third sleeve 13 are used to fix the hoisting steel plate connector on the prefabricated component, which is used for demoulding and hoisting of the prefabricated component .

The fourth sleeve 14 of the formwork installation tie rod connection system: the formwork installation tie rod connection sleeve, the model is M14×50mm, when the PC prefabricated component and the cast-in-place structure are connected, when the cast-in-place structural formwork is supported, the tie screw Connect with the fourth sleeve 14 to fix the tie template.

2) As shown in Figure 5 and Figure 6, adopt the method of pre-embedding special "I" type lifting nails 15, and use special lifting tools for vertical lifting and installation operations. The model of 15 hanging nails is M20×240mm, and 2 "U"-shaped φ10HPB300 steel bars 150 are added under each 15 hanging nails for anchoring, and the anchoring length is 30d. The pre-embedded installation of hanging nail 15 adopts matching special rubber waves.

Layout principle of hanging nails 15: due to the large size of prefabricated components, according to the shape characteristics, set 3 to 4 hanging points on the top of the prefabricated components. The center of gravity of the prefabricated component is generally at the inner side of the middle of the prefabricated component. According to the principle of symmetry of the hanging point position, the hanging point is set at both ends of the top of the prefabricated component, and is set at a position with hidden columns in the wall panel or a position with better stress.

3) Use the embedded bolt sleeve as the installation limit.

Referring to Figures 2 and 3, 2 to 3 steel bolt sleeves are pre-embedded on the top side elevation of the lower prefabricated component 101, and when the upper prefabricated component 102 is installed, the straight limit angle steel 110 is fixed to the lower level with bolts The top of the prefabricated component 101 is 150mm higher than the top. The upper prefabricated component 102 is installed flush with the plate surface of the lower prefabricated component 101 along the limit angle steel 110 during installation, the installation and positioning are fast and the efficiency is high, which overcomes the shortcomings of low efficiency and large error in the usual on-site measurement.

4) As shown in Figures 7 to 11, the steel bolt sleeve: the fifth sleeve 16 is embedded on the top of the lower prefabricated component 101, and the adjusting bolt 160 is installed as a leveling support for the upper prefabricated component 102.

According to the shape rules of the components, 3 to 4 M20 steel bolt sleeves are pre-embedded on the top of the prefabricated component 101, and at the corresponding position at the bottom of the upper prefabricated component 102, the bottom surface of the plate is designed to be flat.

When the prefabricated component 102 is installed, the lower prefabricated component 101 is first installed, the M20 standard bolt 160 is screwed into the fifth sleeve 16 on the top of the lower prefabricated component 101, and the bolt 160 is topped according to the installation height of the upper prefabricated component 102. The elevation and leveling of the surface are consistent. When installing the upper prefabricated component 102, directly install the upper prefabricated component 102 on the top of the bolt 160, then check and detect the elevation of the upper prefabricated component 102, and adjust the elevation by adjusting the height or lowering the bolt 160 for the elevation deviation. In order to enhance the pressure bearing capacity of the bottom of the upper prefabricated component 102, a 10mm thick steel plate 161 can be placed on the bottom of the upper prefabricated component 102 during installation.

After the concrete pouring of the cast-in-place structure is completed, and after the cast-in-place structure can bear the component load, the bolts 160 are loosened to remove the load of the upper prefabricated component 102 on the lower prefabricated component 101 .

The present invention has been described in detail above with reference to the embodiments of the accompanying drawings, and those skilled in the art can make various changes to the present invention according to the above description. Therefore, some details in the embodiments should not be construed as limiting the present invention, and the present invention will take the scope defined by the appended claims as the protection scope of the present invention.

Claims (4)

1. an assembled-type house PC prefabricated units fabrication and installation structure, is characterized in that described structure comprises:

One mounting limit system, described mounting limit system comprises plural first sleeve, and described first sleeve is pre-buried in the top side facade of described prefabricated units, has been bolted plural spacing angle steel;

One supports fixed system, described support fixed system comprises plural second sleeve, described second sleeve is embedded in described prefabricated units bottom and top respectively in advance, second sleeve of described prefabricated units bottom has been bolted complex number type steel bracket, and second sleeve on described prefabricated units top has been bolted plural adjustable diagonal bracing;

One demoulding Lift-on/Lift-off System, described demoulding Lift-on/Lift-off System comprises plural number the 3rd sleeve, and described 3rd sleeve is embedded in described prefabricated units in advance, has been bolted plural number lifting steel plate connector;

One model sheetinstallat is to ties link system, and described model sheetinstallat comprises plural number the 4th sleeve to ties link system, and described 4th sleeve is embedded in described prefabricated units and cast-in-place structural junction in advance, is connected with plural Screw arbor with nut at both-ends;

One leveling system, described leveling system comprises plural number the 5th sleeve, and described 5th sleeve is embedded in the top of described prefabricated units in advance, is connected with plural adjusting bolt;

Be embedded with plural number " I " type at the top of described prefabricated units and hang nail, add the anchoring of 2 " U " steel bars under described " I " type hangs nail, described " I " type hangs nail and is arranged in described prefabricated units and has sleeper or the good position of stressing conditions.

2. structure as claimed in claim 1, is characterized in that: corresponding described adjusting bolt establishes 10mm steel plate at the bottom pad of upper strata prefabricated units.

3. structure as claimed in claim 2, it is characterized in that: it is M20 × 240mm that described " I " type hangs nail model, add 2 " U " type φ 10HPB300 Bar Anchorages under described " I " type hangs nail, anchorage length 30d, and described " I " type hangs, and nail is pre-buried installs the supporting special glue ripple of employing.

4. structure as claimed in claim 3, is characterized in that: lower weld 2 φ 10HPB300 Bar Anchorages of described each sleeve, anchorage length 25d.