WO2022252607A1

WO2022252607A1 - System and method for rapid alignment of non-standard prefabricated parts for use in bridges

Info

Publication number: WO2022252607A1
Application number: PCT/CN2021/143314
Authority: WO
Inventors: 李兴伟; 王鹏; 吴占瑞; 罗上剑; 唐达昆; 吴家宏; 胡申权; 汪婧; 许丹; 李小华
Original assignee: 中铁十一局集团有限公司
Priority date: 2021-05-31
Filing date: 2021-12-30
Publication date: 2022-12-08
Also published as: CN113216005A

Abstract

Disclosed in the present invention are a system and a method for the rapid alignment of non-standard prefabricated parts for use in bridges; the system comprises a crane, a hoisting wall disposed on a prefabricated part, a plurality of spaced load-bearing blocks prefabricated at the bottom of the hoisting wall, a plurality of positioning notches disposed in a side edge of the outer bottom of the prefabricated part, and a plurality of detachable positioning tenons mounted on a first pier column and respectively matching the plurality of positioning notches; the bottom of the hoisting wall is prefabricated with a plurality of spaced load-bearing blocks that protrude a certain height from the lower surface of the prefabricated part and are capable of ensuring that the positioning tenons are not subjected to stress when the prefabricated part falls on the first pier column, and there is a gap between a positioning notch and a positioning notch after the positioning tenons are inserted into the positioning notches, facilitating more accurate and faster positioning; the present invention employs a mortise and tenon principle with a simple structure, and the positioning tenons are detachable and can be recycled; construction is not limited by space and is not dependent on a construction platform, effectively saving construction costs whilst implementing quick and precise positioning, construction being simple and convenient.

Description

A rapid alignment system and method for non-standard prefabricated components for bridges

technical field

The invention belongs to the technical field of building construction, and more specifically relates to a system and method for quick alignment of non-standard prefabricated components for bridges.

Background technique

The prefabricated component alignment device is an important device that directly determines whether the overall assembly between the prefabricated component and the upper pier and the lower pier meets the requirements. It mainly achieves the precise positioning of the prefabricated components and the upper and lower piers through the guidance and adjustment of the alignment device.

At present, most of the alignment devices used when installing prefabricated components between the upper and lower piers rely on mechanical methods to adjust the horizontal and vertical directions, such as hydraulic jack systems, construction platform types, etc.; such devices mainly work through mechanical systems. To carry out subtle adjustments, so as to achieve the purpose of precise positioning.

However, for objects with large volume and weight, it is important to set up a construction platform to carry the overall object for precision adjustment by mechanical means, which increases the construction cost; at the same time, there are high requirements for the mechanical system itself, which needs to be operated in a limited space The mechanical system is carefully observed to ensure that the entire adjustment meets the requirements. There are defects such as limited construction space and inconvenient operation, which seriously affect the construction efficiency; , At the same time, it can quickly and accurately perform positioning operations, and is an accurate and fast alignment system for prefabricated components that is easy to construct.

Contents of the invention

Aiming at the above defects or improvement needs of the prior art, the present invention provides a rapid alignment system and method for non-standard prefabricated components for bridges. There are multiple positioning notches on the outer bottom, and at the same time, positioning tenons matching the multiple positioning notches are set on the second pier. A special crane is used to lift the wall and then lift the prefabricated component and place it on the second pier. On the first pier column, finely adjust the crane by the crane operator so that the positioning notch on the precast concrete cap beam shell is aligned and installed on the positioning tenon on the first pier column, thus completing the entire alignment process; Prefabricated a number of spaced load-bearing blocks protruding from the lower surface of the prefabricated component at the bottom to ensure that the positioning tenon is not stressed when the prefabricated component falls on the first pier column. After the positioning is completed, the positioning tenon can be removed and recycled; The invention adopts the principle of mortise and tenon, which has a simple structure and is convenient for construction and production. At the same time, the positioning tenon is designed to be detachable, which is convenient for recycling and can effectively save costs; the construction is not limited by space and does not depend on the construction platform, which can effectively reduce construction costs. At the same time, the positioning operation can be performed quickly and accurately, and the construction is simple; it can solve the problems that the existing alignment device uses a mechanical method to adjust the precision and needs to build a construction platform, which leads to high construction costs, and at the same time, there is a limited construction space and inconvenient operation that seriously affects the construction efficiency. Very creative.

In order to achieve the above object, one aspect of the present invention provides a rapid alignment system for non-standard prefabricated components used in bridges, which is used to lift the prefabricated components and quickly align and install them on the piers, including cranes, The lifting wall for lifting the prefabricated component, the multiple spaced load-bearing blocks prefabricated at the bottom of the lifting wall, the positioning notch provided on the side of the outer bottom of the prefabricated component, and the first pier installed on the A positioning tenon matched with the positioning notch; wherein,

The prefabricated components are non-standardized components;

The interval load-bearing blocks protrude from the lower surface of the prefabricated component by a certain height and can ensure that the positioning tenon is not stressed when the prefabricated component falls on the first pier column, and can avoid damage to the positioning tenon;

The positioning tenon can be inserted into the positioning notch on the prefabricated component, and there is a gap between the positioning tenon and the positioning notch, so that the prefabricated component and the first pier can be more accurately and quickly realized position;

The positioning tenons are detachable and can be recycled.

Further, the top side of the first pier is provided with positioning grooves having the same number and spacing as the positioning notches and corresponding to them.

Further, the positioning tenon is arranged in the positioning groove, and is partially connected to the bottom of the positioning groove, and partially protrudes from the upper surface of the first pier by a certain height and is inserted into the positioning notch.

Further, the height of the spacer bearing block is greater than the height of the positioning tenon protruding from the upper surface of the first pier, so as to facilitate the disassembly of the positioning tenon.

Further, the prefabricated component is prefabricated from concrete and is a hollow structure.

Further, the bottom of the prefabricated component is provided with a first gap through which the second piers can penetrate.

Further, the bottom of the prefabricated component is provided with a second notch opening downward that matches the shape and size of the upper surface of the first pier.

Further, the lifting wall is a rectangular plate-shaped structure, which is arranged inside the prefabricated component and poured as a whole with the prefabricated component.

Further, the lifting walls are arranged in parallel and at intervals on both sides of the first notch.

Another aspect of the present invention provides a method for accurate and rapid alignment of non-matching prefabricated components: comprising the following steps:

S100: Install positioning tenons matching the positioning notches on the prefabricated components one by one on the positioning grooves of the first pier columns;

S200: Connect the spreader of the crane to the lifting wall on the prefabricated component;

S300: Start the crane to hoist the prefabricated component so that it is located above the second pier column, and lower it gradually so that the second pier column penetrates the first gap on the prefabricated component, and all the spaced load-bearing blocks at the bottom of the hoisting wall located above the first pier;

S400: Use the crane operator to finely adjust the crane so that each positioning notch on the prefabricated component is fully aligned with the corresponding positioning tenons installed on the first pier column;

S500: Completely lower the prefabricated components, so that the multiple spaced load-bearing blocks at the bottom of the hoisting wall all fall on the first pier column, and the whole alignment installation process of the prefabricated components is completed;

S600: Next, the positioning tenons are sequentially removed from the first pier for recycling.

Generally speaking, compared with the prior art, the above technical solutions conceived by the present invention can achieve the following beneficial effects:

(1) In the non-standard prefabricated component rapid alignment system for a bridge of the present invention, a lifting wall for lifting the prefabricated component is set inside the prefabricated component, and a plurality of positioning notches are set on the outer bottom of the prefabricated component, and at the same time On the first pier column, there are positioning tenons matched with multiple positioning notches respectively, and a special hoist is used to lift the wall and then lift the prefabricated component and place it on the first pier column. Finely adjust the crane so that the positioning notch on the prefabricated concrete component is aligned and installed on the positioning tenon on the first pier column, thus completing the entire alignment process; the invention adopts the principle of tenon and tenon, which has a simple structure and is convenient for construction and production. The positioning tenon is designed to be detachable, which is convenient for recycling and can effectively save costs; the construction is not limited by space and does not depend on the construction platform, which can effectively reduce construction costs, and at the same time can quickly and accurately perform positioning operations, and the construction is simple; it can solve existing problems. It is extremely creative to use a mechanical method to adjust the precision of the alignment device, which requires a construction platform, which leads to high construction costs, limited construction space, and inconvenient operations that seriously affect construction efficiency.

(2) A rapid alignment system for non-standard prefabricated components for bridges of the present invention, by prefabricating a plurality of protruding prefabricated components at the bottom of the lifting wall at the bottom of the lifting wall, the height of the lower surface of the prefabricated components is greater than that of the positioning tenon protruding from the first pier The spaced load-bearing blocks at the height of the upper surface of the column ensure that the positioning tenon will not be stressed when the prefabricated component falls on the first pier column, and will not be damaged, and there is a gap between the positioning tenon and the positioning notch. On the one hand, it can make The prefabricated components and the first pier column are more convenient, more accurate and faster to achieve the positioning effect. On the other hand, after the positioning is completed, the positioning tenon can be removed and recycled, which effectively saves the construction cost.

(3) In the non-standard prefabricated component rapid alignment system for bridges of the present invention, lifting walls are arranged in parallel and spaced apart on both sides of the first gap on the prefabricated component, and are integrated with the prefabricated component through concrete pouring, which is a crane Lifting the prefabricated components provides great convenience, so that when the crane lifts the prefabricated components, the force is balanced, the construction is stable, safe and efficient.

(4) In the quick alignment system for non-standard prefabricated components of a bridge of the present invention, the top side of the first pier column is provided with positioning grooves with the same number and spacing as the positioning notches and corresponding positioning grooves. Insert the positioning tenon in the positioning notch on the prefabricated component, so that the positioning tenon is partly connected with the bottom of the positioning groove, and partly protrudes from the upper surface of the first pier column to a certain height and inserted into the positioning notch; through the tenon of the positioning tenon and the positioning notch The 90 alignment can make the alignment between the prefabricated component and the first pier column accurate and efficient. During construction, the crane operator can fine-tune the crane to make each positioning notch on the prefabricated component correspond to the corresponding position installed on the first pier column. The tenons are all aligned, no need to rely on the construction platform, and are not limited by the construction space. The structure is simple, the construction is convenient, safe and efficient.

Description of drawings

Fig. 1 is a schematic plan view of a quick alignment system for non-standard prefabricated components for bridges according to an embodiment of the present invention;

Fig. 2 is a schematic elevation view of a rapid alignment system for non-standard prefabricated components for bridges according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of the installation position of the positioning tenon of a non-standard prefabricated component rapid alignment system for bridges according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of the operation flow of a method for quickly aligning non-standard prefabricated components for bridges according to an embodiment of the present invention.

In all the drawings, the same reference numerals represent the same technical features, specifically: 1-prefabricated component, 11-positioning notch, 12-first gap, 13-second gap, 2-first pier, 21-positioning groove, 3-second pier column, 4-lifting wall, 5-positioning tenon, 51-installation hole, 6-interval load-bearing block.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

It should be noted that when an element is referred to as being “fixed on”, “disposed on” or “provided on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

In addition, the terms “first”, “second”, . . . are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first", "second", . . . may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", "connection" and "installation" should be understood in a broad sense, for example, it can be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary; it can be the internal communication of two components or the mutual connection of two components role relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

As shown in Figures 1-3, one aspect of the present invention provides a rapid alignment system for non-standard prefabricated components for bridges, which is used to hoist the prefabricated components and quickly align and install them on the first pier. The pier column refers to the pier column connected to the ground in bridge construction; it includes a crane, a lifting wall 4 arranged on the prefabricated component 1 for lifting the prefabricated component 1, and a plurality of intervals prefabricated at the bottom of the lifting wall 4 The load-bearing block 6, the positioning notch 11 provided on the outer bottom side of the prefabricated component 1, and the positioning tenon 5 respectively matched with the positioning notch 11 installed on the first pier 2; the present invention is inside the prefabricated component Set up the lifting wall for lifting the prefabricated components, set multiple positioning notches on the outer bottom of the prefabricated components, and at the same time set positioning tenons matching the multiple positioning notches on the first pier column, and use the mortise and tenon to keep away , through the precise alignment of the positioning tenon on the first pier column and the positioning notch on the prefabricated component, the precise alignment between the prefabricated component and the pier column is realized. The construction is not limited by space and does not depend on the construction platform, which can effectively save construction costs , The construction is simple, efficient and highly creative.

Further, as shown in Figures 1-3, the prefabricated component 1 is mainly prefabricated from concrete, which is a non-standardized component; the prefabricated component 1 in this embodiment is a prefabricated cap beam shell, which is hollow and boat-shaped structure; the bottom of the prefabricated component 1 is provided with a first gap 12 that can be penetrated by the second pier column 3; the second pier column 3 refers to the pier column above the first pier column 2; the prefabricated The bottom of the component 1 is provided with a second notch 13 with an opening downward matching the shape and size of the upper surface of the first pier; during work, a crane is used to lift the prefabricated component and pass the first notch through the second pier and make the prefabricated component The positioning notch on the top is aligned with the positioning tenon on the first pier, and the prefabricated component is lowered so that the second gap of the prefabricated component just sits on the first pier. The construction is simple and does not depend on the construction platform, which can effectively save construction costs. .

Further, as shown in Figures 1-3, the lifting wall 4 is a rectangular plate-shaped structure, which is arranged in the hollow structure of the prefabricated component 1, and is integrated with the prefabricated component 1 through concrete pouring, and is used for lifting the prefabricated component by a crane. Great convenience is provided; the number of the lifting walls 4 is preferably two, and they are arranged in parallel and at intervals on both sides of the first gap 12 on the prefabricated component, so that when the crane lifts the prefabricated component, the force is balanced, the construction is stable, and no Limited by the construction space, it is safe and efficient.

Further, as shown in Figures 1-3, the top side of the first pier 2 is provided with positioning grooves 21 corresponding to the number and spacing of the positioning notches on the prefabricated component, and the positioning grooves 21 are Each positioning groove 21 is provided with a positioning tenon 5 that can be inserted into the positioning notch 11 on the prefabricated component. The positioning tenon 5 is provided with a mounting hole 51 for installing the positioning tenon on the first pier , so as to locate; the shape and size of one end of the positioning tenon 5 near the bottom of the positioning groove 21 matches the positioning groove 21, is rectangular, and is connected to the bottom of the positioning groove 21 through the mounting hole 51; the positioning tenon 5 One end away from the bottom of the positioning groove 21 matches the shape and size of the positioning notch on the prefabricated component. The end of the positioning tenon 5 away from the bottom of the positioning groove protrudes a certain height from the upper surface of the first pier 2 and can be inserted into the upper surface of the first pier 2. In the positioning notch 11, the alignment between the prefabricated component and the first pier column is more accurate; the number of the positioning tenon 5 and the positioning notch 11 are the same, and there are multiple, preferably 4, increasing The accuracy and quickness of positioning are ensured; during construction, the crane operator finely adjusts the crane so that each positioning notch on the prefabricated component is fully aligned with the corresponding positioning tenons installed on the first pier column, and the construction does not depend on the construction. The platform is not limited by the construction space, has a simple structure, convenient construction, safety and efficiency.

Further, as shown in Figures 1-3, there are multiple spaced load-bearing blocks 6 at the bottom of the lifting wall 4, which are rectangular block structures that protrude from the bottom of the lifting wall and fit on the upper surface of the first pier , and preferably 4, which can balance the force between the prefabricated component and the first pier column, so as to prevent excessive stress from causing damage to the pier column and positioning tenons, and increase construction costs; the spacer bearing block 6 protrudes from the prefabricated component 1 The surface has a certain height, which is greater than the height of the positioning tenon 5 protruding from the upper surface of the first pier 2. Such a design can ensure that the positioning tenon 5 is completely aligned with the positioning notch 11 and the space between the bearing blocks 6 is completely After being lowered onto the first pier column, there is a gap between the positioning tenon 5 and the positioning notch 11. On the one hand, leaving a gap can make the prefabricated component and the first pier column more convenient, more accurate, and more accurate. The positioning effect can be achieved quickly, on the other hand, the positioning tenon 5 can be freed from force to avoid damage, and after the positioning between the prefabricated component and the pier column is completed, the positioning tenon can be easily disassembled for recycling, and the structure is simple. And can save construction cost.

As shown in Figure 4, another aspect of the present invention provides a method for quick alignment of non-standard prefabricated components for bridges, including the following steps:

The working principle of the rapid alignment system for non-standard prefabricated components used in bridges provided by the present invention: use a heavy-duty crane to lift the entire concrete prefabricated component 1 through the concrete lifting wall 4, and prefabricate 4 protrusions at the bottom of the lifting wall The concrete interval load-bearing blocks 6 are convenient to be placed on the first pier column 2; the prefabricated component is lifted by a crane and placed above the first pier column 2, so that the second pier column 3 penetrates the concrete prefabricated component 1; In the middle, finely adjust the crane by the crane operator so that the notch on the concrete prefabricated component 1 is aligned with the iron positioning tenon 5 installed on the first pier column 2, so that the four notches of the prefabricated component 1 are completely aligned with the four Position the tenon 5, and the whole alignment process ends.

In the present invention, a lifting wall for hoisting the prefabricated component is provided inside the prefabricated component, a plurality of positioning notches are provided on the outer bottom of the prefabricated component, and at the same time, a plurality of positioning notches are provided on the first pier to match the plurality of positioning notches. To position the tenon, use a special hoist to lift the prefabricated component by lifting the wall and place it on the first pier column. The crane operator finely adjusts the crane so that the positioning notch on the precast concrete cover beam shell is aligned and fixed. Installed on the positioning tenon on the first pier column, so as to complete the entire alignment process; prefabricate a plurality of protruding prefabricated components at the bottom of the lifting wall, the height of the lower surface of the prefabricated component is greater than the height of the positioning tenon protruding from the upper surface of the first pier column. block, to ensure that the positioning tenon is not stressed when the prefabricated component falls on the first pier column, and will not be damaged, and there is a gap between the positioning tenon and the positioning notch, so that after the positioning is completed, the positioning tenon can be removed and circulated Utilization effectively saves construction cost; the invention adopts the tenon-tenon principle, which has a simple structure and is convenient for construction and production. Based on the construction platform, it can effectively reduce the construction cost, and at the same time, it can quickly and accurately perform positioning operations, and the construction is simple; it can solve the problem that the existing alignment device uses a mechanical method to adjust the precision and needs to build a construction platform, which leads to high construction costs and limited construction space. , The inconvenience of operation seriously affects the construction efficiency, which is very creative.

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, etc., All should be included within the protection scope of the present invention.

Claims

A rapid alignment system for non-standard prefabricated components for bridges, used for hoisting the prefabricated components and quickly aligning and installing them on the piers, characterized in that it includes a crane, which is installed on the prefabricated components (1) for hoisting the prefabricated components The lifting wall (4) of the prefabricated component (1), a plurality of spaced load-bearing blocks (6) prefabricated at the bottom of the lifting wall (4), and the positioning on the outer bottom side of the prefabricated component (1) The notch (11) and the positioning tenon (5) respectively matched with the positioning notch (11) installed on the first pier column (2); wherein,

The prefabricated component (1) is a non-standardized component;

The interval load-bearing blocks (6) protrude to a certain height from the lower surface of the prefabricated component (1) and can ensure that the positioning tenon (5) does not Stress can avoid damage to the positioning tenon;

The positioning tenon (5) can be inserted into the positioning notch (11) on the prefabricated component (1), and there is a gap between the positioning tenon (5) and the positioning notch (11), To facilitate the positioning of the prefabricated component (1) and the first pier (2) more accurately and faster;

The positioning tenons (5) are detachable and can be recycled.
A quick alignment system for non-standard prefabricated components for bridges according to claim 1, characterized in that: the top side of the first pier (2) is provided with the number and the number of the positioning notches (11) The same spacing and corresponding positioning grooves (21).
A rapid alignment system for non-standard prefabricated components for bridges according to claim 2, characterized in that: the positioning tenon (5) is set in the positioning groove (21), and is partially aligned with the positioning groove ( 21) are connected at the bottom, partly protrudes from the upper surface of the first pier (2) to a certain height and is inserted into the positioning notch (11).
A rapid alignment system for non-standard prefabricated components for bridges according to any one of claims 1-3, characterized in that: the height of the spaced bearing blocks (6) is greater than that of the positioning tenon (5) The protruding height of the upper surface of the first pier column (2) is mentioned, so as to facilitate the removal of the positioning tenon (5).
A rapid alignment system for non-standard prefabricated components for bridges according to any one of claims 1-3, characterized in that: the prefabricated components (1) are prefabricated from concrete and are hollow structures.
A rapid alignment system for non-standard prefabricated components for bridges according to any one of claims 1-3, characterized in that: the bottom of the prefabricated component (1) is provided with a second pier column (3) Through the first notch (12).
A rapid alignment system for non-standard prefabricated components for bridges according to any one of claims 1-3, characterized in that: the bottom of the prefabricated component (1) is provided with the first pier column (2 ) the second gap (13) with the matching opening of the upper surface shape and size downward.
A rapid alignment system for non-standard prefabricated components for bridges according to any one of claims 1-3, characterized in that: the lifting wall (4) is a rectangular plate-shaped structure, which is arranged on the prefabricated components The inside of (1) is poured as a whole with the prefabricated component (1).
The rapid alignment system for non-standard prefabricated components for bridges according to claim 6, characterized in that: the lifting walls (4) are arranged in parallel and at intervals on both sides of the first gap (12).
A rapid alignment method for non-standard prefabricated components for bridges, characterized in that it is realized by applying a rapid alignment system for non-standard prefabricated components for bridges according to any one of claims 1-9, comprising the following steps:

S100: Install positioning tenons matching the positioning notches on the prefabricated components one by one on the positioning grooves of the first pier columns;

S200: Connect the spreader of the crane to the lifting wall on the prefabricated component;

S300: Start the crane to hoist the prefabricated component so that it is located above the second pier column, and lower it gradually so that the second pier column penetrates the first gap on the prefabricated component, and all the spaced load-bearing blocks at the bottom of the hoisting wall located above the first pier;

S400: Use the crane operator to finely adjust the crane so that each positioning notch on the prefabricated component is fully aligned with the corresponding positioning tenons installed on the first pier column;

S500: Completely lower the prefabricated components, so that the multiple spaced load-bearing blocks at the bottom of the hoisting wall all fall on the first pier column, and the whole alignment installation process of the prefabricated components is completed;

S600: Next, the positioning tenons are sequentially removed from the first pier for recycling.