CN111851755A - Embedded part suspended installation support device and construction method thereof - Google Patents

Abstract

The invention relates to a suspension type installation and support device for embedded parts, a support frame standing outside the foundation formed by the fixed connection of uprights and cross bars; The top is connected; where the load-bearing beam and the crossbar overlap, a limit plate is set on the lower side of the outer end of the load-bearing beam, a position plate is set on the crossbar, a screw is installed on the positioning plate, and one end of the screw is in contact with the load-bearing beam; the pendant is connected to the load-bearing beam At the lap joint, the pendant is provided with bolts, the bolts are equipped with nuts, and the bolts pass through the bottom end of the pendant and are supported on the upper surface of the load-bearing beam, and also provide a construction method using the above-mentioned embedded part suspension type installation support device, and the above-mentioned device is transported to The embedded parts are fixed in position, and the columns stand outside the foundation; the embedded parts are hoisted and transported to the support frame and connected to two pendants, adjust the position of the load-bearing beams, adjust the height of each end of the pendants, and adjust the level of the embedded parts of the foundation; pour the foundation concrete ; Correct the offset of the embedded parts of the foundation at any time during the pouring construction.

Description

Embedded part suspended installation support device and construction method thereof

technical field

The invention relates to a pre-embedded fixing structure for embedded parts, in particular to a suspended installation support device for embedded parts and a construction method thereof.

Background technique

In the construction of reinforced concrete structures, the metal embedded parts connected to the upper steel structure or equipment need to be pre-embedded in the foundation during the construction of the concrete foundation of the structure. There are two traditional construction methods: auxiliary fixed frame method and staged pouring installation method.

The auxiliary fixing frame method is to set up various fixing frames when the steel bars are bound during the construction of the concrete structure, and at the same time temporarily fix the embedded parts on the fixing frame. Install.

The staged pouring installation method is to construct a part of the concrete structure first, set up temporary legs with complex forms and a large number at the lower part of the metal embedded parts, and then install the legs on the poured concrete structure to complete the fixation of the embedded parts, and finally pour The remaining part of the concrete foundation and columns.

The above two methods have the following problems:

1) Waste steel. Especially the auxiliary fixing frame method, because the auxiliary fixing frame method is to place the fixing frame made of various steel profiles on the lower end of the foundation and the column, and the fixing frame realizes the two functions of load-bearing and positioning. The fixing frame needs to have a certain strength and Stiffness, the deeper the concrete foundation and the greater the height of the column, the greater the stiffness required for the fixing frame, and the more steel is consumed to make the fixing frame. The staged pouring installation is to construct concrete of a certain height first, and set up legs at the lower part of the embedded parts. The supports are integrated with the embedded parts and placed on the concrete poured first. The legs bear the weight of the embedded parts. At the same time, lateral supports are arranged around the embedded parts, and the tops are positioned on the surrounding formwork. After the embedded parts are fixed and the position is adjusted, the second section of concrete is poured. Although this approach can reduce the amount of steel used, it also needs to consume a certain amount of steel.

2) The operation is cumbersome and inefficient. The auxiliary fixing frame method requires pre-fabricating the fixing frame of the embedded parts, which needs to be made in advance when the concrete structure steel bars are bound and installed. During the installation, the position of the fixing frame should be continuously adjusted to ensure accurate positioning. The process is more and the efficiency is relatively low. There are many safety hazards on site due to the cross-construction between the installation of the fixing frame and the reinforcement work.

3) It is difficult to adjust the installation position. Using the above two methods, in the process of pouring concrete after the embedded parts are fixed, if the embedded parts are displaced, it is difficult to rectify and adjust the deviation, which is not conducive to the precise control of the installation position, and increases the difficulty of the subsequent installation and construction of the upper steel structure.

4) High fixed cost. The above two installation methods require an additional fixing frame in the concrete structure, and need to add legs on the embedded parts, generally steel profiles are used, and a lot of welding work is required to complete these tasks, and it is necessary to invest in electric welding machines and welding. Power sources, professional welders, mechanics and other resources have increased costs.

SUMMARY OF THE INVENTION

The invention aims to provide a fixing device for embedded parts in concrete, the device can be used repeatedly, material consumption is reduced, the embedded parts do not have unadjustable displacement due to foundation pouring, and the positional accuracy of the embedded parts is improved.

In order to achieve the above-mentioned purpose of the invention, the present invention adopts the following technical means to realize:

The present invention first provides a suspension type installation and support device for embedded parts, which includes setting a number of uprights around the pouring foundation, the tops of the uprights are connected by cross bars, the bottoms are connected by connecting rods to form a support frame, and at least a pair of load-bearing cross beams are arranged on the top of the support frame , a pair of load-bearing beams are at least set to a pair of pendants, and the pendants are connected to the top of the embedded part of the foundation; where the load-bearing beam and the beam overlap, a limit plate is set on the lower side of the outer end of the load-bearing beam, and a limit plate is set on the top of the beam A positioning plate, a screw is installed on the positioning plate, and one end of the screw is in contact with the load-bearing beam; at the overlap between the pendant and the load-bearing beam, the pendant is provided with a bolt, the bolt is equipped with a nut, and the bolt passes through the bottom end of the pendant and is supported on the load-bearing beam surface.

This device can realize the rapid installation of metal embedded parts in the construction of steel-concrete steel structures, and can still correct the position of the embedded parts in the foundation pouring construction, meeting the requirements of technical quality and construction schedule, and has the advantages of simple production, material saving and convenience. Practical advantages, but also reduce the labor intensity of workers, reduce labor costs and equipment costs, reduce engineering costs, and shorten the construction period.

Preferably, the pendant is made of slats, the two ends of the pendant are designed as U-shaped hooks, the U-shaped hooks overlap with the load-bearing beam, and the middle of the pendant sinks below the load-bearing beam. This U-shaped hook is adapted to the load-bearing beam, and it is buckled on the beam to make the pendant more stable.

Preferably, the middle part of the pendant is designed to be engaged with the top of the foundation embedded part. When the structure of the embedded part is conditionally engaged with the pendant, it can be directly hung on the pendant.

Preferably, the pendant is connected to the top of the foundation embedded part through a fixing frame. When the embedded structure has no fixed conditions, the power-assisted fixing frame is hung on the pendant.

Preferably, the fixing frame is in a shape matching the upper part or the top of the base embedded part, the fixing frame clamps the base embedded part, and the top of the fixing frame is hung in the middle of the pendant and fixed.

The present invention also provides a construction method for positioning the embedded part by using the above-mentioned suspended installation support device for the embedded part, which is carried out according to the following steps:

In the first step, the support frame is transported to the installation position of the embedded parts of the foundation, each column stands outside the scope of the foundation or column, and the bottom of the column is fixed to the ground;

The second step is to place a pair of load-bearing beams on the top of the support frame, and each surveyor cooperates to adjust the front and rear and left and right screws and bolts of the load-bearing beam to determine the position of the load-bearing beam in the vertical and horizontal directions of the top surface of the support frame, and the plane position;

The third step is to place a pair of pendants on the load-bearing beam, set the measurement and positioning centerline on the top surface of the embedded parts in advance, and hoist the embedded parts to the support frame, and the upper part of the embedded parts is connected to the two pendants;

The fourth step is to adjust the screw on the pendant to fine-tune the level of the foundation embedded part;

The fifth step is to pour concrete according to the normal construction process;

The sixth step is to observe the displacement of the embedded parts of the foundation at any time during the foundation pouring construction, and correct the positioning of the embedded parts of the foundation at any time.

This construction method does not require on-site welding of embedded parts positioning supports or outriggers, etc., can realize rapid installation of metal embedded parts in the construction of steel-concrete steel structures, and can offset the embedded parts during concrete pouring and before solidification. Correction, this method has high installation accuracy, convenient operation and labor-saving, and meets the requirements of technical quality and construction schedule.

Description of drawings

Figure 1 is a schematic diagram of the elevation structure of the support device;

Figure 2 is a schematic view of the side structure of the support device;

FIG. 3 is a schematic view of the top view angle structure of the support device;

Figure 4 is a structural diagram of the lateral position adjustment of the beam;

Figure 5 is a structural diagram of the longitudinal position adjustment of the beam;

Fig. 6 is the structural effect diagram of beam position adjustment;

Figure 7 is a structural diagram of the adjustment of the pendant;

FIG. 8 is a reference diagram of the use state of the device.

In the figure: cross bar 1; column 2; oblique support 3; connecting rod 4; load-bearing beam 5; lifting lug 6; pendant 7; screw 8; limit plate 9; bolt 10; fixing plate 11; screw 12; nut 13; Foundation embedded parts 14 .

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figure 1-3, an embedded part suspension type installation support device includes a cross bar 1; a column 2; an inclined support 3; a connecting rod 4; a load-bearing beam 5; a pendant 7; Screw 8, limit plate 9; bolt 10 and fixing plate 11 for adjusting the lateral position of the load-bearing beam; screw 12 and nut 13 for adjusting the height of the pendant.

The uprights 2 are arranged around the pouring foundation, the tops of the uprights 2 are connected by cross bars, and the bottoms are connected by connecting rods 4 to form a support frame. Both the column 2 and the cross bar 1 can be made of steel profiles, and the size of the support frame can be determined according to the size of the embedded parts to be installed, the size of the concrete column, and the foundation. A diagonal support 3 is installed between the column 2 and the cross bar 1 to strengthen the frame. The embodiment shown in the drawings is a frame with four uprights, but in fact, there may be more upright supports, which are designed as supporting frames of other shapes. The bottom of the column can be provided with a base fixing plate or a walking wheel, and the upper part of the support frame is provided with a lifting lug 6 to facilitate the movement of the device.

At least a pair of load-bearing beams 5 are arranged on the top of the support frame, and at least a pair of hanging pieces 7 are arranged on the pair of load-bearing cross-beams 5, and the tops of the hanging pieces 7 are connected with the top of 14; A limit plate 9 is set on the lower side, a screw 8 is installed on the limit plate 9, and the end of the screw 8 is against the outer side of the cross bar; a positioning plate 11 is set on the upper surface of the cross bar 1, and bolts 10 and 10 are installed on the positioning plate 11 The end is against the side of the load-bearing beam 5 . At the lap joint of the hanger 7 and the load-bearing beam 5 , the hanger is provided with a screw 12 , the screw is equipped with a nut 13 , and the screw 12 passes through the bottom end of the hanger 7 and is supported on the upper surface of the load-bearing beam 5 . The screw 8 , the bolt 10 and the screw 12 are essentially the same components, and they can be mixed with each other. In this description, different names are used to distinguish their different positions.

As shown in Figures 4 and 6, the limit plates 9 and the screws 8 at both ends of the load-bearing beam 5 fix the beam on the top of the support frame to prevent the beam from becoming unstable.

As shown in FIG. 5 and FIG. 6, the structure of the positioning plate 11 and the bolts 10 are symmetrically arranged with the load-bearing beam 5, and the bolts 10 on both sides cooperate with each other to adjust the position of the load-bearing beam 5 and clamp the beam, thereby making the foundation embedded parts 14 horizontal Move the alignment base on the anchor point. By adjusting the screw 8 and the bolt 10, the vertical and horizontal movement of the load-bearing beam is realized, which drives the vertical and horizontal precise adjustment of the embedded part.

As shown in FIG. 7 , the nut 13 is fixed to the pendant 7, the screw 12 on the pendant 7 and the nut 13 cooperate to lift or lower the height of the pendant 7, and the four supporting points are compared with each other, so as to realize the accurate level of the embedded part itself. Adjustment.

As shown in FIG. 8 , the embedded part in this embodiment is a concrete column embedded part, which is a rectangular box-shaped short-column steel workpiece. The upper part of the workpiece is provided with an upper sealing plate and a connecting lug plate, and studs are welded around the workpiece. in order to achieve a good anchorage to the concrete. According to the design requirements, the embedded parts are poured into the concrete column as a whole, and its upper end is flush with the top surface of the column.

In combination with the above-mentioned embodiments, the construction method for positioning the embedded parts using the above-mentioned suspended installation support device for embedded parts is carried out according to the following steps:

In the first step, the support frame is transported to the installation position of the embedded parts of the foundation. Each column stands outside the scope of the foundation or column, and the bottom of the column is fixed to the ground.

The second step is to place a pair of load-bearing beams on the top of the support frame, and each surveyor cooperates to adjust the front and rear and left and right screws and bolts of the load-bearing beam to determine the position of the load-bearing beam in the vertical and horizontal directions of the top surface of the support frame, and the plane position.

The third step is to place a pair of pendants on the load-bearing beam, set the measurement and positioning center line on the top surface of the embedded parts in advance, and hoist the embedded parts into the support frame, and the upper part of the embedded parts is connected to the two pendants.

The fourth step is to adjust the screw on the pendant to fine-tune the level of the embedded part of the foundation.

The fifth step is to pour concrete according to the normal construction process.

The sixth step is to observe the displacement of the embedded parts of the foundation at any time during the foundation pouring construction, and correct the positioning of the embedded parts of the foundation at any time.

As shown in FIG. 7 , the hanger 7 of the present invention is made of slats, and the two ends of the hanger 7 are designed as U-shaped hooks. This U-shaped hook is adapted to the load-bearing beam, and it is buckled on the beam to make the pendant more stable.

The middle part of the hanger 7 is designed to be engaged with the top of the foundation embedded part 14 . When the structure of the embedded part is conditionally engaged with the pendant, it can be directly hung on the pendant.

The pendant 7 is connected to the top of the foundation embedded part 14 through a fixing frame. When the embedded structure has no fixed conditions, the power-assisted fixing frame is hung on the pendant.

The fixing frame is in a shape matching the upper part or the top of the basic embedded part 14 , the fixing frame clamps the basic embedded part, and the top of the fixing frame is hung in the middle of the pendant and fixed.

The embedded part fixing and supporting device of the present invention is fabricated at one time before construction, and can be fabricated in one or more groups, and the specific number depends on the division of construction flow sections. A set of supporting devices is not limited to the suspension installation of only one embedded part, but also can be installed in two, one or more rows at the same time. Ready-to-use when installing steel prefabs in concrete columns. The support frame for fixing the embedded parts can be used in turnaround.

The invention avoids welding legs or making brackets on the embedded parts, reduces the welding workload, greatly reduces the installation workload of the embedded parts, is convenient for installation, simple in operation, accelerates construction progress and reduces engineering costs. It can realize the rapid installation of metal embedded parts in the construction of steel-concrete steel structures, and can still correct the offset of the embedded parts in the foundation pouring construction, reduce labor costs and equipment costs, reduce project costs, and shorten the construction period.

Claims (6)

1. The utility model provides an bury a suspension type installation strutting arrangement which characterized in that: arranging a plurality of stand columns around a pouring foundation, connecting the tops of the stand columns through cross rods, connecting the bottoms of the stand columns through connecting rods to form a supporting frame, arranging at least one pair of bearing cross beams at the top of the supporting frame, arranging at least one pair of hanging pieces on the pair of bearing cross beams, and connecting the hanging pieces with the tops of the foundation embedded parts; a limiting plate is arranged at the lap joint of the bearing cross beam and the cross rod and below the outer end of the bearing cross beam, a positioning plate is arranged on the cross rod, a screw rod is arranged on the positioning plate, and one end of the screw rod is in contact with the bearing cross beam; and at the lap joint of the pendant and the bearing cross beam, a bolt is arranged on the pendant and provided with a nut, and the bolt penetrates through the bottom end of the pendant and is supported on the upper surface of the bearing cross beam.

2. The embedded suspended mounting support device of claim 1, wherein: the pendant is made for the lath, and the pendant both ends design for the U-shaped hook, U-shaped hook and bearing beam overlap joint, and the pendant middle part sinks below the bearing beam.

3. The embedded suspended mounting support device of claim 2, wherein: the middle part of the pendant is designed into a structure clamped with the top of the basic embedded part.

4. The embedded suspended mounting support device of claim 1, wherein: the pendant passes through the mount and links to each other with basic built-in fitting top.

5. The embedded suspended mounting support device of claim 4, wherein: the fixing frame is in a shape matched with the upper part or the top of the basic embedded part, the fixing frame clamps the basic embedded part, and the top of the fixing frame is hung in the middle of the hanging part and fixed.

6. The construction method for installing and fixing the embedded part by adopting any one of the embedded part suspension type installation supporting devices comprises the following steps:

firstly, transporting a support frame to a mounting position of a foundation embedded part, standing each upright column outside the range of a foundation or a column, and fixing the bottom of each upright column with the ground;

secondly, placing a pair of bearing beams on the top of the support frame, and adjusting screws and bolts at the front, the back, the left and the right of the bearing beams to determine the plane positions of the bearing beams in the longitudinal and transverse directions of the top surface of the support frame in cooperation with each measuring person;

thirdly, placing a pair of hanging pieces on the bearing cross beam, setting a measuring and positioning center line on the top surface of the embedded piece in advance, hoisting the embedded piece into the supporting frame, and connecting the upper part of the embedded piece with the two hanging pieces;

fourthly, adjusting the levelness of the basic embedded part by adjusting the screws on the hanging parts;

fifthly, pouring concrete according to a normal construction process;

and sixthly, observing the displacement condition of the foundation embedded part at any time in the foundation pouring construction, and correcting the positioning of the foundation embedded part at any time.

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