CN113216195A - Air bag type steel reinforcement framework construction system and construction method thereof - Google Patents

Abstract

The invention provides an air bag type steel reinforcement framework construction system and a construction method thereof, wherein a steel reinforcement framework and a detachable air bag are arranged; the steel reinforcement framework is arranged corresponding to the foundation pit along the height direction; the detachable air bags are communicated through a one-way air valve; the detachable air bag is positioned along the height direction of the steel reinforcement framework; the detachable air bags are connected in sequence from bottom to top. The detachable air bag is adopted, the self weight of a huge steel reinforcement framework is overcome by utilizing the buoyancy of the air bag, the investment on large-scale hoisting equipment and the hoisting operation difficulty are reduced, and the structural size of a large-scale foundation can be further expanded; the pressure of the reinforcement cage on the orifice and the retaining wall can be greatly reduced, and the probability of accidents such as orifice collapse is greatly reduced; the device and the process required by the method for placing the air bags of the steel reinforcement frameworks under the air bags are simple, the one-time investment is less, the sizes and the number of the air bags can be flexibly designed, the method is suitable for the steel reinforcement frameworks with various sizes, and the popularization and the application are facilitated to generate large-scale economic value.

Description

Air bag type steel reinforcement framework construction system and construction method thereof

Technical Field

The invention relates to the technical field of building foundations, in particular to an air bag type steel reinforcement framework construction system and a construction method thereof.

Background

As infrastructure construction has been developed more and more, building structure infrastructure has become an essential part. The existing foundations such as pile foundations, underground diaphragm walls and the like of buildings and bridges are increasingly large in size, so that reinforcing meshes (cages) in pouring pieces are increasingly heavy, hoisting and installation become a big problem, large equipment is often required to be transported and hoisted downwards in multiple sections, the investment is high, the construction period is long, the prefabricated parts are easy to transport and the hoisting equipment is difficult, and the problems of low construction efficiency and long construction period are caused; therefore, the safe and reliable integral air bag type steel reinforcement framework construction system and the construction method thereof are designed, and the integral air bag type steel reinforcement framework construction system is simple in structure, low in material consumption, more convenient to construct and safe and reliable.

Disclosure of Invention

The invention aims to provide an air bag type steel reinforcement framework construction system and a construction method thereof, and aims to solve the technical problem that the hoisting difficulty of the steel reinforcement framework is high at the present stage.

In order to achieve the purpose, the invention is realized by the following technical scheme:

an air bag type steel reinforcement framework construction system comprises a steel reinforcement framework and a detachable air bag; the steel reinforcement framework is arranged corresponding to the foundation pit along the height direction; the detachable air bags are communicated through one-way air valves;

the detachable air bag is positioned along the height direction of the steel reinforcement framework; the detachable air bags are sequentially connected from bottom to top to realize the buoyancy support of each section of the steel reinforcement framework.

As a further improvement of the invention, the detachable air bag comprises an upper bag body, a lower bag body and a clamp; the upper bag body, the one-way air valve and the lower bag body are sequentially connected from bottom to top; the clamp is sleeved on the detachable air bag; the clamp is clamped with the steel bar framework in a positioning manner; the gasbag inflation and the shrink through dismantling the gasbag realize can dismantle the spacing joint and the pine of gasbag and clamp take off.

As a further improvement of the invention, the clamp is positioned outside the one-way air valve.

As a further improvement of the invention, the device also comprises an air pump; the air pump is connected with the air inlet valve on the uppermost section of the air bag to inflate the air bag.

As a further development of the invention, the gas bag body of the lowermost section is provided with a gas outlet valve.

As a further improvement of the invention, the detachable air bags are axially and symmetrically arranged on the steel reinforcement framework.

As a further improvement of the invention, a plurality of detachable air bags are arranged in the steel reinforcement framework.

As a further improvement of the invention, a plurality of the steel reinforcement frameworks are connected in sequence along the height direction.

As a further improvement of the invention, the steel bar framework is a steel bar cage or a steel bar mesh.

A construction method of an air bag type steel reinforcement framework comprises the following steps:

s1, construction preparation: arranging materials and mechanical equipment required by construction, drilling a pile foundation, excavating a foundation pit of the underground diaphragm wall, and designing the size, the quantity and the position of the air bag according to the reinforcement cage structure;

s2, clamp welding: welding corresponding clamps on the steel reinforcement framework according to the design of the air bags, and preparing the corresponding air bags, wherein the air bag at the bottommost section is provided with the air bag with an air outlet valve;

s3, hoisting the steel reinforcement framework: the lifting equipment is in place, the bottommost section of the steel reinforcement framework is lifted to the guide position of the protective wall, and the one-way air valve is installed, wherein the air outlet of the lower bag body is connected with the ground valve through a pipeline; inflating the segment air bags to a specified air pressure, clamping and fixing the expanded air bags by a clamp, and disconnecting the air pump from the one-way air valve;

s4, lengthening and lowering the steel bar skeleton segment: hoisting a second section of steel reinforcement framework by hoisting equipment, lengthening the second section of steel reinforcement framework with the first section of steel reinforcement framework in a sleeve connection mode, connecting the upper section of air bag with the upper section of air bag through a one-way air valve, inflating the second section of air bag to a specified air pressure by an air pump, disconnecting the air pump from the one-way air valve, lowering the steel reinforcement cage, and overcoming most of the dead weight of the steel reinforcement cage by the buoyancy of the air bag;

s5, repeatedly lengthening and lowering to a designed elevation: repeating the step S4 until all the steel bar frameworks are lengthened, lowering the steel bar frameworks to the designed elevation by utilizing the buoyancy of the air bag, and disconnecting the air pump from the one-way air valve;

s6, recovering the air bag, and finishing construction: opening an overground sealing valve connected with an air outlet at the bottommost end of the air bag, gradually deflating the air bag from the bottom, continuously reducing the volume, finally directly pumping out from the space between the steel bar frameworks to finish recycling, and continuously utilizing next time; and finishing the downward placement of the steel reinforcement framework, and pouring concrete after secondary hole cleaning.

Compared with the prior art, the invention has the beneficial effects that:

1. this application utilizes the buoyancy of gasbag to overcome huge framework of steel reinforcement dead weight through adopting removable formula gasbag, has reduced the input and the hoist and mount operation degree of difficulty to large-scale equipment of lifting by crane for the structural dimension of large-scale basis can further expand. Because the buoyancy of the air bag counteracts the dead weight, the pressure of the reinforcement cage on the orifice and the retaining wall is greatly reduced, and the probability of accidents such as orifice collapse and the like is greatly reduced; the device and the process required by the method for placing the air bags of the steel reinforcement frameworks under the air bags are simple, the one-time investment is less, the sizes and the number of the air bags can be flexibly designed, the method is suitable for the steel reinforcement frameworks with various sizes, and the popularization and the application are facilitated to generate large-scale economic value.

2. The detachable air bag is lowered, the air bag can be completely recovered after being inflated and used, any damage to permanent structures such as pile foundations, underground diaphragm walls and the like can be avoided, the air bag can be repeatedly used, circulation can be realized among multiple projects and multiple work points, and the air bag is beneficial to saving and environmental protection.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic illustration of the present invention in use;

FIG. 3 is a schematic view of a detachable bladder of the present invention;

the reference numbers in the figures illustrate:

1. a steel reinforcement cage; 2. a detachable air bag; 21. an upper bladder body; 22. a lower bag body; 23. clamping a hoop; 3. a foundation pit; 4. a one-way air valve; 5. an air outlet valve; 6. an air intake valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides an air bag type steel reinforcement framework construction system and a construction method thereof by combining accompanying drawings 1 to 3.

Specifically, the air bag type steel reinforcement framework construction system comprises a steel reinforcement framework 1 and a detachable air bag 2; the steel reinforcement framework 1 is arranged corresponding to the foundation pit 3 along the height direction; the detachable air bags 2 are communicated through a one-way air valve 4;

the detachable air bag 2 is positioned along the height direction of the steel reinforcement framework 1; the detachable air bags 2 are sequentially connected from bottom to top to realize the buoyancy support of each section of the steel reinforcement framework 1.

This application utilizes the buoyancy of gasbag to overcome huge reinforcement cage 1 dead weight through adopting removable formula gasbag, has reduced the input and the hoist and mount operation degree of difficulty to large-scale equipment of lifting by crane for the structure size of large-scale basis can further expand. Because the buoyancy of the air bag counteracts the dead weight, the pressure of the reinforcement cage on the orifice and the retaining wall is greatly reduced, and the probability of accidents such as orifice collapse and the like is greatly reduced; the device and the process required by the air bag downward-placing method of the steel reinforcement framework 1 are simple, the one-time investment is less, the size and the number of the air bags can be flexibly designed, the air bag downward-placing method is suitable for the steel reinforcement frameworks 1 with various sizes, and the popularization and the application are facilitated to generate large-scale economic value.

In one embodiment, the detachable balloon 2 comprises an upper balloon 21, a lower balloon 22 and a collar 23; the upper capsule body 21, the one-way air valve 4 and the lower capsule body 22 are sequentially connected from bottom to top; the hoop 23 is sleeved on the detachable air bag 2; the clamp 23 is clamped with the steel reinforcement framework 1 in a positioning manner; the gasbag body expansion and the shrink through dismantling gasbag 2 realize can dismantle gasbag 2 and clamp 23's spacing joint and pine take off.

Further, the clamp 23 is positioned outside the one-way air valve 4.

In one embodiment, the device further comprises an air pump; the air pump is connected with an air inlet valve (6) on the uppermost section of the air bag to inflate the air bag.

Further, the lowest section of the balloon body is provided with an outlet valve 5.

Furthermore, the overground sealing valve connected with the air outlet of the air bag body at the bottommost section enables an operator to deflate the air bag at the bottommost stage on the ground, and the air bag deflation device is reasonable in setting and more convenient and faster to operate.

In one embodiment, the detachable air bags 2 are axially symmetrically arranged on the steel reinforcement framework 1.

Furthermore, the two detachable air bags 2 are respectively arranged on two side edges of the steel reinforcement framework 1.

In one embodiment, a plurality of the detachable air bags 2 are arranged in the steel reinforcement framework 1.

Further, two detachable air bags 2 are arranged in a single steel reinforcement framework 1.

In one embodiment, the reinforcement cage 1 is connected in series along the height direction.

In one embodiment, the steel reinforcement cage 1 is a steel reinforcement cage or a steel reinforcement mesh.

During the specific use, according to framework of steel reinforcement 1's structure and dead weight, design gasbag size and the gasbag number of calculation needs, weld clamp 23 as gasbag stop device on corresponding framework of steel reinforcement 1 according to the design. The detachable air bags are connected through the one-way valves, so that the steel reinforcement framework 1 is lengthened, the corresponding air bags are synchronously connected and equipped, the air pump is used for pressurizing, and the dead weight of the part of the steel reinforcement framework 1 is overcome by using the underwater buoyancy of the air bags. And (3) when the steel reinforcement framework 1 is completely put down to the designated position, opening a valve of the air bag at the lowest end, discharging the air in the air bag from top to bottom, and drawing out the air bag from the space between the steel reinforcement framework 1 for recycling after the volume of the air bag is shrunk.

A construction method of an air bag type steel reinforcement framework comprises the following steps:

s1, construction preparation: arranging materials and mechanical equipment required by construction, drilling a pile foundation, excavating a foundation pit 3 of the underground diaphragm wall, and designing the size, the number and the position of the air bags according to the structure of the steel reinforcement framework 1;

s2, welding the hoop 23: welding a corresponding clamp 23 on the steel reinforcement framework 1 according to the design of the air bag, and preparing the corresponding air bag, wherein the air bag at the bottommost section is provided with the air bag with an air outlet valve 5;

s3, hoisting the steel reinforcement framework 1: the hoisting equipment is in place, the bottommost section of the steel reinforcement framework 1 is hoisted to the wall protection guide position, the one-way air valve 4 is installed, and the air outlet of the lower bag body 22 is connected with the ground valve through a pipeline; inflating the segment air bags to a specified air pressure, clamping and fixing the expanded air bags by a clamp 23, and disconnecting the air pump from the one-way air valve 4;

s4, lengthening and lowering the steel reinforcement framework 1 segment: hoisting a second section of the steel reinforcement cage 1 by hoisting equipment, lengthening the second section of the steel reinforcement cage with the first section of the steel reinforcement cage by adopting a sleeve connection mode, connecting a previous section of the air bag with the section of the air bag through a one-way air valve 4, inflating the second section of the air bag to a specified air pressure by an air pump, disconnecting the air pump from the one-way air valve 4, and lowering the steel reinforcement cage, wherein the buoyancy of the air bag can overcome most of the dead weight of the steel reinforcement cage;

s5, repeatedly lengthening and lowering to a designed elevation: repeating the step S4 until all the steel reinforcement frameworks 1 are lengthened, lowering the steel reinforcement frameworks to the designed elevation by utilizing the buoyancy of the air bag, and disconnecting the air pump from the one-way air valve 4;

s6, recovering the air bag, and finishing construction: opening an overground sealing valve connected with an air outlet at the bottommost end of the air bag, gradually deflating the air bag from the bottom, continuously reducing the volume, finally directly pumping out from the space between the steel reinforcement frameworks 1 to finish recycling, and continuously utilizing next time; and finishing the downward placement of the steel reinforcement framework 1, and pouring concrete after secondary hole cleaning.

The detachable air bag is lowered, the air bag can be completely recovered after being inflated and used, any damage to permanent structures such as pile foundations, underground diaphragm walls and the like can be avoided, the air bag can be repeatedly used, circulation can be realized among multiple projects and multiple work points, and the air bag is beneficial to saving and environmental protection.

It should be noted that when the air bag in the steel reinforcement framework 1 is expanded through the air injection device, the internal buoyancy of the slurry in the foundation pit 3 of the steel reinforcement framework 1 can be increased; when the gassing, the gasbag of bottommost gives vent to anger earlier and contracts, and the gasbag that the upper portion was bloated is because pressure is great, and upper portion gas can enter into the gasbag of lower part through one-way pneumatic valve 4, makes the even shrink of gasbag in framework of steel reinforcement 1, makes framework of steel reinforcement 1 sink at the uniform velocity in the mud, can realize simultaneously when a plurality of frameworks of steel reinforcement 1 connect, reduces through the quantity of gas of gasbag and rocks, makes framework of steel reinforcement 1 transfer at the uniform velocity. After the whole reinforcement cage 1 is placed, the gas in the air bag is released, and the air bag is pulled upwards to separate from the closing-up structure of the reinforcement cage 1 to complete recovery; the use is flexible, convenient and fast, and more economical and practical.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. The utility model provides an air bag formula steel reinforcement framework construction system which characterized in that: comprises a steel bar framework and a detachable air bag; the steel reinforcement framework is arranged corresponding to the foundation pit along the height direction; the detachable air bags are communicated through one-way air valves;

the detachable air bag is positioned along the height direction of the steel reinforcement framework; the detachable air bags are sequentially connected from bottom to top to realize the buoyancy support of each section of the steel reinforcement framework.

2. The air-bag type steel reinforcement framework construction system according to claim 1, wherein: the detachable air bag comprises an upper bag body, a lower bag body and a clamp; the upper bag body, the one-way air valve and the lower bag body are sequentially connected from bottom to top; the clamp is sleeved on the detachable air bag; the clamp is clamped with the steel bar framework in a positioning manner; the gasbag inflation and the shrink through dismantling the gasbag realize can dismantle the spacing joint and the pine of gasbag and clamp take off.

3. The air-bag type steel reinforcement framework construction system according to claim 2, wherein: the clamp is positioned outside the one-way air valve.

4. The air-bag type steel reinforcement framework construction system according to claim 1, wherein: the device also comprises an air pump; the air pump is connected with the air inlet valve on the uppermost section of the air bag to inflate the air bag.

5. The air-bag type steel reinforcement framework construction system according to claim 1, wherein: the air bag body of the bottommost section is provided with an air outlet valve.

6. The air-bag type steel reinforcement framework construction system according to claim 1, wherein: the detachable air bags are axially and symmetrically arranged on the steel reinforcement framework.

7. The air-bag type steel reinforcement framework construction system according to claim 1, wherein: the steel bar framework is internally provided with a plurality of detachable air bags.

8. The air-bag type steel reinforcement framework construction system according to claim 1, wherein: and the plurality of steel bar frameworks are connected in sequence along the height direction.

9. The air-bag type steel reinforcement framework construction system according to claim 1, wherein: the steel bar framework is a steel bar cage or a steel bar mesh.

10. A construction method of an air bag type steel reinforcement framework, which is based on the air bag type steel reinforcement framework construction system of any one of claims 1-9, and is characterized by comprising the following steps:

s1, construction preparation: arranging materials and mechanical equipment required by construction, drilling a pile foundation, excavating a foundation pit of the underground diaphragm wall, and designing the size, the quantity and the position of the air bag according to the reinforcement cage structure;

s2, clamp welding: welding corresponding clamps on the steel reinforcement framework according to the design of the air bags, and preparing the corresponding air bags, wherein the air bag at the bottommost section is provided with the air bag with an air outlet valve;

s3, hoisting the steel reinforcement framework: the lifting equipment is in place, the bottommost section of the steel reinforcement framework is lifted to the guide position of the protective wall, and the one-way air valve is installed, wherein the air outlet of the lower bag body is connected with the ground valve through a pipeline; inflating the segment air bags to a specified air pressure, clamping and fixing the expanded air bags by a clamp, and disconnecting the air pump from the one-way air valve;

s4, lengthening and lowering the steel bar skeleton segment: hoisting a second section of steel reinforcement framework by hoisting equipment, lengthening the second section of steel reinforcement framework with the first section of steel reinforcement framework in a sleeve connection mode, connecting the upper section of air bag with the upper section of air bag through a one-way air valve, inflating the second section of air bag to a specified air pressure by an air pump, disconnecting the air pump from the one-way air valve, lowering the steel reinforcement cage, and overcoming most of the dead weight of the steel reinforcement cage by the buoyancy of the air bag;

s5, repeatedly lengthening and lowering to a designed elevation: repeating the step S4 until all the steel bar frameworks are lengthened, lowering the steel bar frameworks to the designed elevation by utilizing the buoyancy of the air bag, and disconnecting the air pump from the one-way air valve;

s6, recovering the air bag, and finishing construction: opening an overground sealing valve connected with an air outlet at the bottommost end of the air bag, gradually deflating the air bag from the bottom, continuously reducing the volume, finally directly pumping out from the space between the steel bar frameworks to finish recycling, and continuously utilizing next time; and finishing the downward placement of the steel reinforcement framework, and pouring concrete after secondary hole cleaning.

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