CN105484282A - Leveling device inside cup-shaped foundation of pipe steel support and usage method of leveling device - Google Patents

Abstract

The invention relates to the installation of pipeline supports in the industrial field, in particular to a leveling device in the cup foundation of steel pipeline supports and a method for using the same. The device includes pre-embedded installation anchor bolts, leveling nuts, temporary wooden wedges, and micro-expansion concrete. The bottom of the central blind hole of the cup foundation is equipped with pre-embedded installation anchor bolts. The pre-embedded installation anchor bolts have a U-shaped structure. The bottom is placed in the foundation of the cup mouth, and the two sides of the U-shaped structure protrude outside the foundation of the cup mouth. The protruding ends of the two sides of the U-shaped structure are respectively provided with external threads, and the leveling nuts are installed symmetrically through the external threads. One end of the support is inserted into the central blind hole of the cup foundation, and micro-expanding concrete is placed outside the pipe steel support in the cup foundation. The invention has a simple structure and is convenient for construction, and can greatly reduce the waiting time of the crane on the spot, thereby improving the utilization rate of the crane, and saving the installation time of the pipeline steel support, which has a good effect on ensuring the construction period and reducing the mechanical cost .

Description

A leveling device in the cup foundation of a pipeline steel support and its application method

technical field

The invention relates to the installation of pipeline supports in the industrial field, in particular to a leveling device in the cup foundation of steel pipeline supports and a method for using the same.

Background technique

In some industrial factories, the pipe supports are arranged between the workshops according to the technological process. Since the conveying pipes have a certain slope, the top elevations of the pipe supports are different. The design institute can process and manufacture them in batches for the convenience of the steel structure factory. At the same time, the pipe support in a temperature range is designed into one type, that is, the height of the pipe steel support is the same, only by adjusting the different buried depths of the support cup foundation to meet the different requirements of the top elevation of the pipe support. However, due to the use of the cup foundation, the pipe steel support needs to be hoisted by a crane to adjust the roof elevation back and forth during the installation process. The crane needs to wait in place all the time, which reduces the utilization rate and the work efficiency is not high, resulting in serious on-site mechanical work. Therefore, the cost of machinery will be greatly increased, and the production cost will be increased accordingly.

Contents of the invention

The purpose of the present invention is to provide a leveling device in the cup base of the pipeline steel support and its use method, so as to solve the problems that the pipeline steel support needs to be hoisted by a crane to adjust the top elevation back and forth during the installation process, which affects work efficiency and the like.

Technical scheme of the present invention is:

A leveling device in the cup foundation of a pipeline steel support, the device includes pre-embedded installation anchor bolts, leveling nuts, temporary wooden wedges, micro-expansion concrete, the specific structure is as follows:

The bottom of the central blind hole of the cup foundation is provided with a pre-embedded installation anchor bolt. The pre-embedded installation anchor bolt is a U-shaped structure. The bottom of the U-shaped structure is placed in the cup foundation, and the two sides of the U-shaped structure protrude outside the cup foundation. The protruding ends on both sides of the U-shaped structure are respectively provided with external threads, and the leveling nuts are installed symmetrically through the external threads, and one end of the pipe steel bracket is inserted into the central blind hole of the cup foundation, and the pipe steel in the cup foundation Slightly expansive concrete is arranged on the outside of the support.

For the leveling device in the cup base of the pipeline steel support, the central blind hole is in the shape of an inverted truncated cone, and the four sides of the upper opening of the central blind hole and the pipeline steel support are fastened by temporary wooden wedges.

The leveling device in the cup foundation of the pipeline steel support, the cup foundation, the pre-embedded installation anchor bolt of U-shaped structure, the leveling nut and the pipeline steel bracket are matched to form a verticality and top elevation adjustment structure.

For the leveling device in the cup foundation of the pipeline steel support, the pre-embedded installation anchor bolts are anchored in the cup foundation, and the minimum cross-sectional area of the central blind hole should be greater than 15 times the cross-sectional area of the pre-embedded installation anchor bolts. The outcropping length of the installation anchor should be 150mm higher than the base of the cup mouth, and the length of the external thread at the upper end of the pre-embedded installation anchor is required to be 150-200mm.

The leveling device in the cup foundation of the pipeline steel bracket, the bottom plate of the pipeline steel bracket and the middle stiffening plate corresponding to the positions of the embedded installation anchor bolts are correspondingly left holes, so that the embedded installation anchor bolts can pass through freely, and through adjustment The flat nut is connected and fixed with the pipe steel bracket.

In the method of using the leveling device in the cup foundation of the pipeline steel bracket, when the crane lifts the pipeline steel bracket and inserts it into the cup foundation, and roughly adjusts the top elevation of the pipeline steel bracket, the anchor bolts and Temporary wooden wedges temporarily fix the pipe steel bracket, and the crane drives away to continue the installation of the next pipe steel bracket; at this time, the leveling nut on the pre-embedded installation anchor bolt is used to fine-tune the top elevation of the pipe steel bracket to meet the design requirements. After the verticality and elevation of the pipeline steel support are in place according to the design drawings, the cup foundation is finally filled with slightly expansive concrete that is higher than the strength level of the cup foundation concrete, and removed after the microexpansion concrete has hardened to meet the strength requirements Temporary wooden wedges and pipe steel supports are installed.

Advantage of the present invention and beneficial effect are:

The present invention is equipped with pre-embedded installation anchor bolts in the cup mouth foundation. When the crane hoisting and inserting the pipe steel support (pipe frame) into the cup mouth foundation and roughly adjusting the top elevation of the pipe steel support, use the pre-buried installation anchor bolts and temporary wooden The wedge temporarily fixes the pipe steel support, and the crane can drive away to continue the installation of the next pipe steel support. At this time, the leveling nut on the pre-embedded installation anchor bolt is used to fine-tune the top elevation of the pipe steel support to meet the design requirements. After the verticality and elevation of the pipe steel support are in place according to the design drawings, the cup foundation is finally filled with slightly expansive concrete that is higher in strength than the cup foundation concrete, the temporary wooden wedges are removed, and the installation of the pipe steel support is completed. Therefore, this leveling device has a simple structure and is convenient for construction. It can greatly reduce the waiting time of the crane on the spot, thereby improving the utilization rate of the crane, and saving the installation time of the pipeline steel support. It works great.

Description of drawings

Fig. 1 is the front view of the present invention.

Figure 2 is a top view of the present invention.

In the figure: 1. Cup mouth foundation; 2. Embedded installation anchor bolt; 3. Pipe steel bracket; 4. Leveling nut; 5. Temporary wooden wedge; 6. Micro-expansion concrete; 7. Central blind hole.

detailed description

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

As shown in Fig. 1-Fig. 2, the leveling device in the cup foundation of the pipeline steel support of the present invention mainly includes: embedded installation anchor bolt 2, leveling nut 4, temporary wooden wedge 5, micro-expansion concrete 6, etc., specifically The structure is as follows:

The bottom of the central blind hole 7 of the cup foundation 1 is provided with a pre-embedded installation anchor bolt 2, which is a U-shaped structure. The bottom of the U-shaped structure is placed in the cup foundation 1, and the two sides of the U-shaped structure protrude from the Outside the cup foundation 1, the protruding ends on both sides of the U-shaped structure are respectively provided with external threads, and the leveling nuts 4 are symmetrically installed through the external threads, and the cup foundation 1, the pre-embedded installation anchor bolts 2 of the U-shaped structure, The leveling nut 4 and the pipe steel bracket are matched to form a specific verticality and top elevation adjustment structure. The structure is stable and detachable, and the verticality and top elevation adjustment are accurate; The hole 7 is located on the outside of the pipe steel support 3 in the cup foundation 1 and the micro-expansion concrete 6 is arranged. The central blind hole 7 is an inverted truncated cone, and the four sides of the upper opening of the central blind hole 7 and the pipe steel support 3 are fastened by temporary wooden wedges 5 .

The pre-embedded installation anchor bolt 2 is anchored in the cup mouth foundation 1, the minimum cross-sectional area of the central blind hole 7 should be greater than 15 times the cross-sectional area of the pre-embedded installation anchor bolt 2, and the outcropping length of the pre-embedded installation anchor bolt 2 should be longer than that of the cup mouth foundation 1 It is more than 150mm higher, and the length of the external thread at the upper end of the pre-embedded installation anchor bolt 2 is required to be 150-200mm.

The bottom plate of the pipeline steel bracket 3 and the middle stiffener plate correspondingly leave holes corresponding to the positions of the embedded installation anchor bolts 2 to ensure that the embedded installation anchor bolts 2 can pass through freely, and then connect and fix them with the pipeline steel bracket 3 through the leveling nut 4. After the pipeline steel bracket 3 is in place in the cup foundation 1, the pipeline steel bracket 3 is temporarily fixed with the pre-embedded installation anchor bolt 2 and the temporary wooden wedge 5, and the leveling nut 4 on the pre-embedded installation anchor bolt 2 and the increase Subtract the temporary wooden wedge 5 to fine-tune the verticality and the top elevation of the pipeline steel support 3. After the leveling of the pipe steel support 3 is completed, the central blind hole 7 of the cup foundation 1 is filled with micro-expansion concrete 6 with a strength grade higher than that of the cup foundation concrete, and the temporary wooden wedge 5 is removed after the concrete hardens to meet the strength requirement.

The using method of the leveling device in the cup base of the pipeline steel support of the present invention is as follows:

When the crane lifts and inserts the pipe steel support 3 into the cup foundation 1, and roughly adjusts the top elevation of the pipe steel support, use the pre-embedded installation anchor bolt 2 and temporary wooden wedge 5 to temporarily fix the pipe steel support 3, and the crane can drive away Continue the installation of the next pipeline steel support 3. At this time, the leveling nut 4 on the pre-embedded installation anchor bolt 2 fine-tunes the top elevation of the pipeline steel support 3 to reach the elevation required by the design requirements. The verticality of the pipeline steel support 3 and After the elevation is in place according to the design drawings, the cup mouth foundation 1 is finally filled with slightly expansive concrete 6 of a higher concrete strength grade than the cup mouth foundation 1, and the temporary wooden wedge 5 is removed after the micro-expansion concrete 6 hardens to meet the strength requirements , the pipeline steel support 3 is installed.

Claims (6)

1. the levelling device in the rim of a cup basis of pipe line steel support, is characterized in that, this device comprises pre-buried installation crab-bolt, leveling nut, interim timber wedge, slightly expanded concrete, and concrete structure is as follows:

Pre-buried installation crab-bolt is set bottom the central blind hole on rim of a cup basis, pre-buried installation crab-bolt is U-shaped structure, the bottom of U-shaped structure is placed in rim of a cup basis, the both sides of U-shaped structure stretch out in rim of a cup fundamental external, the external part on described U-shaped structure both sides is respectively equipped with external screw thread, install leveling nut by described external screw thread symmetry, pipe line steel support one end is plugged in the central blind hole on rim of a cup basis, and the pipe line steel stent outer being arranged in rim of a cup basis arranges slightly expanded concrete.

2. according to the levelling device in the rim of a cup basis of pipe line steel support according to claim 1, it is characterized in that, central blind hole is inversed taper platform shape, fastening by interim timber wedge between central blind hole four sides suitable for reading and pipe line steel support.

3. according to the levelling device in the rim of a cup basis of pipe line steel support according to claim 1, it is characterized in that, rim of a cup basis, the pre-buried installation crab-bolt of U-shaped structure, leveling nut and pipe line steel support equipped form verticality and top mark height adjustment structure.

4. according to the levelling device in the rim of a cup basis of pipe line steel support according to claim 1, it is characterized in that, the anchoring in rim of a cup basis of pre-buried installation crab-bolt, the smallest cross-section area of central blind hole should be greater than 15 times of pre-buried installation crab-bolt sectional areas, pre-buried installation crab-bolt length of appearing should exceed more than 150mm than rim of a cup basis, and requires that pre-buried installation crab-bolt upper end external thread length is 150 ~ 200mm.

5. according to the levelling device in the rim of a cup basis of pipe line steel support according to claim 1, it is characterized in that, on the base plate of pipe line steel support and middle stiffener, the position of corresponding pre-buried installation crab-bolt is corresponding boxes out, pre-buried installation crab-bolt freely can be passed through, be connected and fixed by leveling nut and pipe line steel support.

6. the using method of the levelling device in the rim of a cup basis of the pipe line steel support described in one of claim 1 to 5, it is characterized in that, when the lifting of pipe line steel support is inserted in rim of a cup basis by crane, and after coarse adjustment pipe line steel support top mark height, utilize pre-buried installation crab-bolt and interim timber wedge by temporary fixed for pipe line steel support, crane drives away and continues the installation of next Pin pipe line steel support; At this moment by the high absolute altitude reaching designing requirement and need of leveling nut fine setting pipe line steel support top mark in pre-buried installation crab-bolt, until the verticality of pipe line steel support and absolute altitude all in place by design drawing after, finally with the slightly expanded concrete higher than rim of a cup base concrete strength grade, rim of a cup basis is filled, after slightly expanded concrete sclerosis reaches requirement of strength, withdraw interim timber wedge, pipe line steel support installing is complete.