CN111663457A - Assembled module, modular construction platform and method, bridge pier construction method - Google Patents

Abstract

The invention belongs to the technical field of civil engineering. The splicing module comprises a module frame, a connecting part and a surrounding baffle, wherein the connecting part is used for connecting and assembling with an adjacent structural part, and the connecting part is arranged on at least one side of the module frame; the enclosure is arranged on the outer side of the top of the module frame. A modular construction platform comprises the assembling modules, wherein a plurality of assembling modules are annularly attached to the outer side of the abutment template; the adjacent two modules are connected and fixed through connecting parts and between the assembly modules and the abutment templates, and a plurality of surrounding barriers are circumferentially distributed on a construction platform formed by the assembly modules. Also discloses a construction method of the modular construction platform and a construction method of a bridge abutment. The application can greatly improve the usability of the product, is convenient to construct and high in efficiency, can be widely applied to industries such as highways, railways, buildings and electric power, can be repeatedly used, is convenient for shaping and batch production, and has good benefits.

Description

Assembled module, modular construction platform and method, bridge pier construction method

technical field

The invention belongs to the technical field of civil engineering, and particularly relates to an assembled module, a modular construction platform and method, and a bridge abutment construction method.

Background technique

At present, various construction platforms are widely used in the construction of concrete pouring and climbing formwork in many fields such as highways, railways, and buildings. With the continuous increase in the height of buildings such as bridge piers and abutments, it is particularly important that the construction platform should have the characteristics of lightness and stability, safety and practicality, convenient installation and disassembly, and flexible combination.

Throughout the common bridge pier and abutment construction platform, there are many kinds, but there are some shortcomings. Such as thin structure, too bulky, inconvenient installation and disassembly, poor versatility and so on.

SUMMARY OF THE INVENTION

The purpose of the present invention is to address the above-mentioned existing problems and deficiencies, and provide an assembled module, a modular construction platform and method, and a bridge abutment construction method, which have reasonable structural design, good stability, can greatly improve the usability of the product, and are convenient for construction. And high efficiency, can be widely used in highway, railway, construction, electric power and other industries, can be reused, easy to shape and mass production, and has good benefits.

In order to achieve the above purpose, the technical solutions adopted are:

An assembled module, comprising:

module framework;

a connecting part, the connecting part is used for connecting and assembling with an adjacent structural member, and a connecting part is provided on at least one side of the module frame; and

The enclosure is arranged on the outside of the top of the module frame.

According to the present invention to assemble a module, preferably, the module frame includes:

upper support frame;

the lower support frame; and

A connecting rod is arranged between the upper support frame and the lower support frame, and pedals are laid on the upper support frame.

According to the assembling module of the present invention, preferably, the lower support frame is arranged obliquely, and the upper support frame is arranged horizontally; or the lower support frame and the upper support frame are arranged in parallel;

Each side edge of the lower support frame and the upper support frame is vertically aligned; or at least one side surface between the lower support frame and the upper support frame is an inclined slope.

According to the assembling module of the present invention, preferably, the cross section of the module frame is a fan-shaped, rectangular or L-shaped structure.

According to the assembling module of the present invention, preferably, the connecting part is a connecting screw or a connecting pin; or the connecting part includes a connecting block, and the connecting block is arranged on the side of the module frame, and the connection on the module frame The block is connected with the connecting block on the corresponding structural member through the connecting member;

The module frame and the enclosure are connected and fixed by bolts; or the module frame is provided with a socket, the lower part of the enclosure is provided with a plug corresponding to the socket, and the plug is connected to the socket. There are connecting bolts between them.

A modular construction platform is arranged on the outside of a pier formwork, and includes the assembled modules as described above, a plurality of the assembled modules are arranged in a ring shape and arranged on the outside of the abutment formwork; The modules and the abutment formwork are connected and fixed by connecting parts, and a surrounding block is arranged on the circumference of the construction platform formed by the plurality of assembled modules.

According to the modular construction platform of the present invention, preferably, the construction platform is in the shape of a circular ring or a rectangular ring; a connection channel is provided between two adjacent bridge abutments, the connection channel includes a plurality of assembled modules, and the The assembling module of the connecting channel is assembled and connected with the assembling module of the construction platform on the bridge abutment, and both sides of the connecting channel are provided with enclosures.

A construction method for a modular construction platform, which is used for the construction of the above-mentioned modular construction platform, specifically includes the following steps:

Assemble the pier and abutment formwork, and select the corresponding assembling module according to the structural size of the pier and abutment formwork of the bridge pier;

Assemble each assembly module, lift it as a whole, and arrange reinforcing ribs on the pier formwork to complete the fixing of the construction platform and the pier formwork; The assembled modules are sequentially connected and fixed with the corresponding reinforcing ribs, and at the same time, the two adjacent assembled modules are connected and fixed;

A sloping top brace is arranged between the side wall of the pier formwork and the bottom of the assembled module;

Check the stability of the assembled construction platform.

According to the construction method of the modular construction platform of the present invention, preferably, before the construction platform is assembled, the assembled modules are pre-assembled, and the stability of the assembled modules is detected;

When the piers and abutments of the two bridges are constructed synchronously, and a connecting channel is arranged between the piers and abutments of the two bridges, after the assembling modules of the connecting channel are assembled, the connecting channel is hoisted as a whole by the lifting equipment, and is connected with the outside of the pier template. The assembled modules are integrally connected, and a sloping top brace is also provided between the bottom of the connection channel and the abutment formwork.

A method for constructing a bridge pier and abutment, specifically comprising the following steps;

a. According to the bridge pier structure, determine the climbing height of the formwork, and determine the structural size of the formwork and the structural size of the assembled module;

b. Carry out the installation of the reinforcing bars and the pier formwork in the first section, and carry out the construction of the construction platform on the top of the pier formwork in the first section by the above-mentioned modular construction platform construction method;

c. Concrete pouring in the first section;

d. Repeat steps b and c to complete the concrete pouring of the second section;

e. Remove the pier formwork and the assembly module of the construction platform in the first section, install the steel bars and the pier formwork in the third section, and carry out the third section pier through the modular construction platform construction method as described above. Construction of the construction platform on top of the formwork;

f. Concrete pouring in the third section;

g. Repeat steps e and f until the construction of the entire bridge abutment is completed;

When the tie beam or cover beam construction needs to be carried out, in the adjustment section close to the bottom of the tie beam or cover beam, the steel bars, pier formwork and construction platform of the adjustment section are constructed through steps b and c; After the concrete strength meets the construction requirements, remove the construction platform and pier formwork in the adjustment section, install the support hoop on the bridge pier after pouring, and perform steps b and c to tie the beams or cover the beams. Construction of formwork and construction platforms.

By adopting the above technical scheme, the beneficial effects obtained are:

1. The present invention has reasonable design, lightweight structure, flexible splicing, safe operation, and is suitable for industries such as highway, railway, construction, electric power, etc., and can be reused to generate better benefits.

2. The materials used in this application can adopt common shaping materials, which are easy to purchase, and are convenient for shaping and mass production, which is more convenient for the systematic and standardized operation of the entire construction project, and can ensure the efficiency of construction and the stability of the structure.

3. The construction platform and assembling module of the present invention are based on the requirements of common cylindrical piers, square column piers, rectangular thin-walled piers, round-end thin-walled piers, tie beams, and pier caps. The platform is reasonably divided into sections, that is, modules, which are classified and produced, assembled piece by piece or assembled in sections, assembled and disassembled as a whole, climbed up together with the formwork, and cooperated with the material hoist. The construction efficiency is high, and it is more convenient for systematic operation.

4. In the connection part of the assembled module in this application, a pair of concave connecting blocks are welded to the upper and lower ends of the two connecting rods close to the pier, and longitudinal reinforcing ribs are welded at the appropriate positions of the pier template, and the ribs correspond to the modules. Set the convex connection block, the position of the convex and concave connection blocks are aligned and fixed with pins, which is convenient and quick, and can control the assembly gap by adjusting the position and height of the reinforcing rib, which is more convenient for the assembly of the assembly module, and has strong versatility .

5. When two or three piers in the same pier can be constructed at the same time in this application, annular platforms can be set up for separate construction, or a connecting channel can be set up to form an integral platform to increase stability.

6. The application can also carry out the construction of the tie beam, cover beam, thin-walled pier body and pier cap of the column pier with a large side area, and the splicing module can be assembled on the spot, and the overall installation can improve the work efficiency. , reduce the difficulty and risk of construction.

7. When the gap between the piers and abutments of the present application is large, in order to avoid the large deflection caused by the insufficient stiffness of the channel, inclined top braces can be added symmetrically at the appropriate positions of the pier column formwork and the bottom of the channel, which can increase the stability of the channel and also improve the stability of the channel. It can avoid increasing the dead weight for maintaining stability and increasing the module section.

8. The connection between the enclosure and the assembled module of the present application is set up in a socket + socket mode through the outer contour size of the lower end of the enclosure connecting rod and the inner contour size of the upper end of the connecting rod of the assembled module, and the top of the socket is fixed downward. Weld the partition at the depth, drill the bolt hole at the appropriate position of the socket and socket, insert the lower end of the connecting rod of the enclosure into the upper end of the connecting rod of the module, and fix it with bolts, which is simple and firm.

9. The application can also be used for the construction of variable-section piers. By adjusting the slope of the vertical rods on the inner sides of the upper and lower support frames, a simple track is set on the pier formwork for setting up a concrete construction platform for pouring slope.

10. The present application can also be used to set up temporary construction bridges and carry out bridge foundation construction.

11. The construction platform of the present application can be structurally designed according to the shape of the pier formwork, and maintain multi-point assembling and fixing on the assembling connection structure, so as to disperse the stress points, avoid the pier formwork and the local parts of the assembled modules being too large. Structural stability, thereby improving the stability and safety of the overall structure; in terms of construction methods, it can achieve efficient construction, avoid the overall weight of the construction platform being too large, reduce construction risks, and improve overall stability and efficiency.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments of the present invention will be briefly introduced hereinafter. The accompanying drawings are only used to illustrate some embodiments of the present invention, but not to limit all the embodiments of the present invention thereto.

FIG. 1 is a schematic structural diagram of an assembled module according to an embodiment of the present invention.

FIG. 2 is a second schematic structural diagram of an assembled module according to an embodiment of the present invention.

FIG. 3 is a third schematic structural diagram of an assembled module according to an embodiment of the present invention.

FIG. 4 is a fourth schematic structural diagram of an assembled module according to an embodiment of the present invention.

FIG. 5 is a fifth schematic structural diagram of an assembled module according to an embodiment of the present invention.

FIG. 6 is a schematic diagram of a connection structure of a module frame, a connection part and a enclosure according to an embodiment of the present invention.

FIG. 7 is one of the schematic structural diagrams of the modular construction platform according to the embodiment of the present invention.

FIG. 8 is a second schematic structural diagram of a modular construction platform according to an embodiment of the present invention.

FIG. 9 is a third schematic structural diagram of a modular construction platform according to an embodiment of the present invention.

FIG. 10 is a fourth schematic structural diagram of a modular construction platform according to an embodiment of the present invention.

Fig. 11 is a process step diagram of a climbing form for the construction of a bridge abutment according to an embodiment of the present invention.

Serial number in the picture:

100 is the assembly module, 110 is the upper support frame, 111 is the pedal, 120 is the lower support frame, 130 is the connecting rod, 140 is the connecting block, 150 is the enclosure, 160 is the plug, 170 is the socket, 180 is the pin, 190 for reinforcing ribs;

200 is a safe ladder;

300 is the pier formwork, 310 is the tie beam or cover beam formwork;

400 is the construction platform.

Detailed ways

Hereinafter, the exemplary solutions of the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings of the specific embodiments of the present invention. Unless otherwise defined, technical or scientific terms used in the present invention should have the ordinary meaning as understood by those of ordinary skill in the art.

It should be noted that when an element is expressed as "connected", "coupled" or "connected" to another element, it may mean that it is directly connected, coupled or connected, but it should be understood that there may be Intermediate elements; that is, the positional relationship covering both direct and indirect connections.

It should be noted that the use of "a" or "an" and similar words also does not necessarily imply a limitation of quantity. "Comprising" or "comprising" and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things.

It should be noted that terms such as "upper", "lower", "left", and "right" indicating an orientation or positional relationship are only used to indicate a relative positional relationship, which is for the convenience of describing the present invention, rather than referring to a device or a device. Elements must have a specific orientation, be constructed and operated in a specific orientation; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

Referring to FIGS. 1-6 , the present application discloses an assembled module, including a module frame, a connecting part and a fence 150 , the connecting part is used for connecting and assembling with adjacent structural parts, and a connecting part is provided on at least one side of the module frame part; the enclosure is arranged on the outside of the top of the module frame.

Further, the module frame in this embodiment includes an upper support frame 110, a lower support frame 120 and a connecting rod 130. The connecting rod 130 is arranged between the upper support frame and the lower support frame, and pedals 111 are laid on the upper support frame. The pedal 111 is an anti-skid plate supported by a thin steel plate, and corresponding screw holes are provided on the anti-skid plate and the module frame, which are connected and fixed by bolts. According to different pier shapes and application positions, the shapes of the assembled modules have different structures.

In this embodiment, the lower support frame 120 can be inclined and the upper support frame 110 is arranged horizontally. At this time, it can ensure that the length of the inner connecting rod is longer, which facilitates a larger contact area with the abutment formwork 300, and can make The lower support frame of the assembled module itself forms an oblique support to ensure the stability of the structure and avoid excessive stress on the connecting part when the outer end of the upper support frame is overloaded; in most cases, the lower support frame can be connected to the upper support frame. The racks are arranged in parallel, and the longitudinal section forms a rectangular box structure. The assembled modules as shown in Figure 1-5 are arranged in parallel with the upper and lower support racks.

Further, the lower support frame in this embodiment is vertically aligned with the sides of the upper support frame, so as to facilitate the connection of adjacent structural members, such as the connection of two adjacent assembled modules, or the assembled module and the abutment formwork. As shown in Figure 5, since the pier may be a variable-diameter structure, that is, the cross-section of the lower end is large, and the cross-section of the upper end is gradually reduced, in order to ensure the stability of the assembly structure, the lower support frame and the upper support At least one side between the frames is an inclined slope, which is convenient for fixing and stable under force. The variable-section assembly module is used for the platform for the construction of the variable-section pier body. The inner connecting rod is inclined and the slope is Similar to the pier formwork, the formed construction platform can be rectangular or circular, with enclosures on the outside.

As shown in Figure 1, the cross section of the module frame is fan-shaped, that is, the inner and outer sides of the module frame are arc structures, and the two sides of the module frame are truncated cones; as shown in Figures 2, 3 and 5, the module The cross-section of the frame can also be set to a rectangular structure. In Figure 3, the end corners of the module frame can also be chamfered to avoid interference during the assembly process. It is used in the connection between the connection channel and the construction platform as shown in Figure 8. Position; as shown in Figure 4, the cross-section of the module frame is an L-shaped structure. The above structure changes the shape of the module frame to a certain extent according to different application positions and different pier structures.

The connecting part in this embodiment can be directly connected and fixed by connecting screws or connecting pins; in order to facilitate the adjustment and avoid the dislocation of the assembly positions between the structures, which may lead to inability to assemble, the connecting parts can also be set as multiple pairs of connecting blocks, and the connecting blocks are set in On the side part of the module frame, such as the side edge of the connecting rod, the connecting block on the module frame is connected with the connecting block on the corresponding structural member through the connecting member. As shown in Figure 6, a convex connecting block can be set on the pier formwork, and a concave connecting block can be set on the connecting rod. After the convex and concave connecting blocks are matched and aligned, they are connected by pins; because the fixed position on the pier formwork may change to a certain extent Therefore, the convex connecting block can be fixed on the pier formwork through the reinforcing rib. After the fixing position is determined, the reinforcing rib is welded on the pier formwork, and then the convex connecting block is fixed on the pier formwork.

Further, the module frame and the enclosure in this embodiment are connected and fixed by bolts; when considering the force support of the enclosure, in order to ensure the stability of the structure, the module frame in this embodiment is provided with a socket, and the enclosure is The lower part is provided with a plug corresponding to the socket, and a connecting bolt is provided between the plug and the socket, as shown in FIG. 6 .

As shown in Fig. 7-Fig. 10, the present application also discloses a modular construction platform, which is arranged on the outside of the abutment formwork, including the above-mentioned assembled modules, and a plurality of assembled modules are arranged in a ring shape and are attached to the outside of the abutment formwork; Between two adjacent assembled modules, between the assembled modules and the pier formwork are connected and fixed by connecting parts, and enclosures are arranged circumferentially on the construction platform formed by the plurality of assembled modules.

The construction platform in this embodiment can be in the shape of a circular ring; when a connecting channel is set between two adjacent bridge piers, the connecting channel can be arranged between the construction platforms; specifically, the connecting channel includes a plurality of assembled modules, and The assembly module of the connecting channel and the assembly module of the construction platform on the bridge pier are assembled and connected as a whole, and enclosures are provided on both sides of the connecting channel, as shown in Figures 7 and 8, and Figure 8 is the top view of Figure 7; construction; The platform may also be a rectangular ring, as shown in FIG. 9 and FIG. 10 , and FIG. 10 is a schematic top view of FIG. 9 .

The present application also discloses a method for constructing a modular construction platform, which is used for the construction of the above-mentioned modular construction platform, and specifically includes the following steps:

Assemble the pier and abutment formwork, and select the corresponding assembling module according to the structural size of the pier and abutment formwork of the bridge pier;

Assemble each assembly module, lift it as a whole, and arrange reinforcing ribs on the pier formwork to complete the fixing of the construction platform and the pier formwork; The assembled modules are sequentially connected and fixed with the corresponding reinforcing ribs, and at the same time, the two adjacent assembled modules are connected and fixed;

A sloping top brace is arranged between the side wall of the pier formwork and the bottom of the assembled module;

Check the stability of the assembled construction platform.

Before assembling the construction platform, pre-assemble the assembled modules, and test the stability of the assembled modules;

When the piers and abutments of the two bridges are constructed simultaneously and a connecting channel is arranged between the piers and abutments of the two bridges, after the assembly module of the connecting channel is assembled, the connecting channel is hoisted as a whole by the hoisting equipment, and the assembly module on the outside of the pier template is carried out. It is integrally connected, and there is also a sloping roof support between the bottom of the connecting channel and the pier formwork.

Referring to FIG. 11 , the present application also discloses a method for constructing a bridge pier and abutment, which specifically includes the following steps;

a. According to the bridge pier structure, determine the climbing height of the formwork, and determine the structural size of the formwork and the structural size of the assembled module;

B, carry out the installation of the reinforcing bars and the pier formwork of the first section, and carry out the construction of the construction platform on the top of the pier formwork of the first section by the modular construction platform construction method as claimed in claim 8 or 9;

c. Concrete pouring in the first section;

d. Repeat steps b and c to complete the concrete pouring of the second section;

e. Remove the pier formwork in the first section and the assembly module of the construction platform, install the steel bars and the pier formwork in the third section, and carry out the third section through the modular construction platform construction method as claimed in claim 8 or 9. Construction of the construction platform on top of the section pier formwork;

f. Concrete pouring in the third section;

g. Repeat steps e and f until the construction of the entire bridge abutment is completed;

When the tie beam or cover beam construction needs to be carried out, in the adjustment section close to the bottom of the tie beam or cover beam, the steel bars, pier formwork and construction platform of the adjustment section are constructed through steps b and c; After the concrete strength meets the construction requirements, remove the construction platform and pier formwork in the adjustment section, install the support hoop on the bridge pier after pouring, and perform steps b and c to tie the beams or cover the beams. Construction of formwork and construction platforms.

The following is a further detailed description of the construction methods of the specific structures and processes of each component:

The assembled module in this application can be composed of flat rods, vertical rods, inclined rods, connecting rods, connecting points, enclosures, diagonal braces and other shaping materials. According to the form of bridge piers and abutments, the modules that make up the construction platform are divided into various forms as shown in Figures 1-5.

As shown in Figure 1, the assembly module is fan-shaped, which is used for the construction of circular column piers and round-end pier bodies. A pair of concave connection blocks are welded to the upper and lower ends of the two connecting rods in the arc section close to the pier body, and longitudinal reinforcing ribs are welded at the appropriate positions of the pier body formwork, and convex connection blocks are arranged on the ribs corresponding to the concave connection blocks. Set up a fence on the outside.

As shown in Figure 2, the assembled module is rectangular, which is used to set up connecting passages when adjacent piers and abutments on the same pier are constructed at the same time. The outer sides (length direction) of the connecting rods at both ends of the adjacent modules are respectively provided with convex and concave connecting blocks and double-sided enclosures.

As shown in Figure 3, the assembling module is used for the transition section and is hexagonal. As shown in Figure 8, it is used between the annular construction platform and the straight connecting channel, and the four connecting rods connected to the adjacent assembled modules are provided with connecting blocks and double-sided enclosures.

As shown in Figure 2, its assembly module can also be used for the construction of the tie beam, cover beam, thin-walled pier body and pier cap of the column pier. It is rectangular and connected to the outside of the formwork. The fixed connection method is also to set connecting blocks on the connecting rods at both ends, and set up enclosures on the outside.

As shown in Figure 4, the assembly module is used for the platform erected at the corner of the rectangular section pier body. The connecting rods at both ends of the corner are provided with connecting blocks, which are connected with the connecting blocks on the reinforcing ribs of the pier formwork, and enclosures are arranged along the outer sides of both sides of the corner.

As shown in Figure 5, the assembly module is used for the platform for the construction of the variable-section pier body. The connecting rods at both ends are arranged obliquely, the slope is the same as that of the template, the plane can be rectangular or circular, and the outer side is provided with enclosures.

A module frame (the module frame in Figure 5 is a trapezoid frame) is composed of two parallel vertical rods (the vertical rod on the inside of Figure 5 follows the slope of the formwork), two parallel flat rods and an inclined rod, as a module basic unit. The two module frames (which can be added when the module segment is longer) are connected by flat rods (divided into linear and curved) to form the skeleton structure of the module. The module frame can be a multi-rod welded integral structure, or it can be split by the upper, middle and lower structures for detachable assembly, that is, the main structure is formed by the upper rectangular upper support frame and the lower lower rectangular support frame. The connection is made by connecting rods and the size of the structure can be adjusted.

A skid plate made of thin steel plate is laid on the top of each module frame, and the skid plate is drilled with the top of the frame and connected with bolts.

For the connection method between modules in the present application, for the solution that does not require a channel (the columns of the column pier are constructed separately), bolt holes are drilled on both sides of the connecting rod of each module. After the assembly module is fixed with the pier formwork, it can be fixed with long rod bolts through the bolt holes of the adjacent two connecting rods. The connecting rods on the enclosure are also connected in this way.

When the column construction of the column pier needs to set up an aerial connection channel, the upper and lower ends of the connecting rod of each module are welded with connecting blocks respectively. When installing the module, first connect the connecting block inside the connecting rod of the module and the corresponding connecting block on the formwork with pins. Connect, and then connect the connecting blocks between adjacent modules with pins.

For the connection between the enclosure and the module, the outer contour size of the lower end of the enclosure connecting rod is suitable for the inner contour size of the upper end of the module connecting rod. Drill bolt holes at the appropriate position of the socket, insert the lower end of the enclosure connecting rod into the upper end of the module connecting rod, and fix it with bolts. An open enclosure is set up at the appropriate part of the enclosure, which is connected to the exit of the safety ladder 200, which is convenient for construction personnel to enter and exit.

When erecting an aerial connection channel, reinforcing ribs can be added to the appropriate parts of the pier and column formwork, and connecting blocks can be welded. At the same time, corresponding connecting blocks can be set at the bottom of the module connecting rods in the appropriate parts of the channel, and the two points are connected with appropriate size steel (4 in total). , to increase the stability of the channel.

Utilize above-mentioned a kind of application method of modular bridge universal construction platform, is characterized in that, comprises the following steps:

It is used to build a construction platform during the construction of common bridge piers and columns (body):

1. Module production:

1. The production of the assembled module as shown in Figure 1:

(1) Cut the material according to the design size, among which the vertical rod selects the appropriate specification of the steel, preferably the square steel. In principle, a module is equipped with 6 vertical rods, 4 linear flat rods, 5 arc-shaped flat rods, 2 linear inclined rods, and a fan-shaped anti-skid plate (thin steel plate).

(2) First, use 2 linear vertical rods, 2 linear flat rods, and 1 linear oblique rod to weld into a frame. In principle, each module has 2 frames, which are connected by 4 arc-shaped flat rods to form a skeleton.

(3) Weld a pair of concave connecting blocks on the upper and lower ends of the front (the side facing the template) of the inner vertical rod (connecting rod), respectively. On the two sides of the connecting rod, set a For the concave connecting block (the convex connecting block is set on the connecting rod adjacent to it), or drill a pair of bolt holes on the two side walls to connect the adjacent modules and fix the enclosure.

(4) The enclosure is connected by two vertical rods and one flat rod. The outer contour size of the lower end of the two vertical rods is slightly smaller than the inner contour size of the two vertical rods outside the skeleton. Drill bolts of the same diameter at the corresponding positions. hole.

(5) Weld a steel partition plate to a suitable depth from the top of the two vertical rods on the outside of the skeleton to form a socket-socket structure with the lower part of the vertical rod of the enclosure. After the enclosure is in place, use long rod bolts to pass through the 4 bolt holes. Fixed fence.

(6) Drill small holes at the corresponding positions of the fan annular anti-skid plate and the skeleton flat rod, and connect them with the flat rod by spot welding or with screws. The screw surface is flush with the top of the board.

2. The production of the assembled module as shown in Figure 2:

The assembled module has a rectangular structure, and is used for erecting an aerial passage connecting a pier-column construction platform, or as a construction platform for erecting a thin-walled pier body and a pier cap, a column-type pier tie beam, and a cover-beam construction platform.

The manufacturing method of the assembled module is the same as that of the assembled module shown in FIG. 1 , and double-sided enclosures may need to be provided in different application positions. When setting up the air connection channel, a pair of concave connection blocks are set on the upper and lower ends of the two sides of the connection rod (the convex connection block is set on the adjacent connection rod), and at the bottom of the module at the appropriate position, A pair of concave diagonal brace connecting blocks are arranged to connect the diagonal braces and improve the overall stability of the passage.

An open enclosure is arranged at an appropriate position of the passage or platform, and a lock is arranged on the vertical rod of the enclosure. It is connected and fixed with the safety ladder, which is convenient for operators to enter and exit.

3. Production of the assembled module shown in Figure 3-5:

The assembled modules shown in Figures 3-5 are applied according to different application occasions, and will not be repeated here.

2. Construction platform operation:

1. Try on the spot:

Store the processed modules in categories, choose a flat and solid site, and splicing them according to the designed platform style to test the production accuracy of the modules, intuitively analyze and improve the structure of the modules, and evaluate the rationality of the connection settings.

2. Trial of pier column and pier body:

Take the column pier as an example.

Choose a flat and solid site, customize the pier column and pier body formwork of appropriate length as required, and weld reinforcing ribs (section steel) within an appropriate range on the upper part of the formwork. Solder the convex connection block on the corresponding position. The size of the connection block should be able to maintain a proper gap between the inner side of the module and the template, so that the pins can be easily inserted and pulled out.

Two additional reinforcing ribs (4 in total for double-column piers) are installed at the appropriate position of each pier column formwork, and a diagonal bracing connection block is welded on each rib along the lateral position of the pier body.

Erect the formwork and fix it according to the designed scheme (such as tightening the cable and adjusting the tension of the flower basket bolt).

(1) Lift up the assembled modules as shown in Figure 1 one by one, align the connecting blocks on the connecting rods of the assembled modules with the connecting blocks on the reinforcing ribs of the formwork, and insert pins to fix them.

(2) The connection between the assembled modules can be fixed by connecting the adjacent modules with pins as needed, or using long-rod bolts to pass through the bolt holes on the adjacent vertical rods between the modules, tighten and fix, and connect the lower end of the outer wall of the vertical rod (plug. ) into the socket of the vertical rod of the module, and fixed with the adjacent vertical rod by long rod bolts. The upper ends of adjacent enclosures are fixed in the same way.

(3) After the arc segment of the pier and column platform is assembled, the assembled modules shown in Figure 2 are spliced into the whole channel on the ground, and the two ends are assembled and spliced as shown in Figure 3, and the two connections are connected by adjacent The connecting block is inserted into the pin, and then lifted as a whole to connect with the arc-shaped platform that has been installed on the formwork. Depending on the design, 4 diagonal braces should be installed. The diagonal braces are made of section steel, and a pair of diagonal bracing connection blocks are welded at both ends, corresponding to the diagonal bracing connection blocks at the bottom of the assembled module and the side of the formwork.

(4) Carry out counterweight, swing and vibration tests on the assembled platform to check its overall stiffness and stability, and correct and optimize the design in time to facilitate finalization.

The modules can be installed and disassembled block by block, sectioned and disassembled, and the overall installation and disassembly comparison test can be carried out to find out the most efficient way of installation and disassembly.

3. Construction methods of bridge piers and abutments:

Take the double-column pier and climbing formwork construction method as an example.

1. According to the construction plan of the climbing formwork determined by the construction organization design, determine the climbing height of the formwork each time, design the length and structure of the formwork, and design the form and size of the construction platform. Taking the double-column pier as an example, 4 sections of column formwork and 2 construction platforms are required.

The construction sequence of the pier and abutment column is: install the steel bars and formwork in the first section → install the first platform on the top of the formwork in the first section → pour the concrete in the first section → install the steel reinforcement and formwork in the second section → formwork in the second section Install the second platform on the top → pour the second section concrete → install the third section steel reinforcement → remove the first section formwork and the first platform → transfer the first section formwork and the first platform to the third section for work face, and proceed upwards accordingly.

In the process of installing the formwork and setting up the platform, set up a safety ladder at an appropriate position, set an exit at the platform position, connect with the movable enclosure of the platform, and keep the safety ladder connected to at least one of the two platforms.

The erection of the construction platform of the tie beam and the cover beam:

Set up a circular arc-shaped platform composed of the assembled modules as shown in Figure 1 at the height of the two column tie beams → set up the tie beam construction brackets → install the tie beam steel bars as a whole → separate the tie beam template from the assembled modules as shown in Figure 2 Section or overall connection → hoist the tie beam formwork, butt with the column formwork and arc-shaped platform → pour concrete → remove the tie beam formwork and support.

Cover beam construction platform erection:

Set up an arc-shaped platform composed of the assembled modules as shown in Figure 1 at the height of the two columns and cover beams → set up the cover beam construction brackets → install the cover beam steel bars as a whole → separate the cover beam formwork from the assembly modules shown in Figure 2 Section or overall connection → lifting cover beam formwork → pouring concrete → removing the beam formwork and support → removing the platform.

2. Site preparation

The construction site shall be leveled and compacted. If there are special requirements (such as on-site production of steel bars, piers that are too high, safety ladders and material hoists need to be anchored), concrete floors or foundations shall be poured within an appropriate range.

3. Template and platform preparation

Columns, tie beams, and cover beam formwork are first tested on the spot to check their overall stiffness, joint tightness, vertical and horizontal straightness, and improve the deficiencies. The column formwork is reasonably segmented to facilitate the installation of a section close to the tie beam or cover beam, so that the top is just the bottom of the tie beam or cover beam.

The modules that make up the platform are assembled and tried together in situ, the overall stiffness after assembly is checked, the operation of the connection between the modules is mastered, and the lifting points are reasonably set to ensure the safety of the installation and disassembly process.

Carry out the connection and trial assembly between the template and the platform, check whether the setting of the connecting block is reasonable, whether the installation and disassembly are convenient, and improve it in time.

4. Construction of the first section of the pier column:

Release the center of the pier.

After the 1st section reinforcement is installed, install the 1st section formwork. The bottom of the formwork is centered and fixed with cables (3 or 4) to adjust the verticality.

Lift module A block by block, so that its connecting block is aligned with the connecting block on the reinforcing rib at the top of the formwork, insert pins to fix it, connect adjacent modules with bolts, install enclosures, and spliced into a platform arc segment. also may

The arc segment of the platform is spliced in situ, and the whole is lifted and installed.

The modules B and C are spliced block by block to form an air channel on the spot, hoisted as a whole, and docked with the installed platform arc segment. If the overall stiffness of the channel is insufficient, install diagonal braces to fix it. At the same time, the safety ladder is assembled and fixed with the passage.

After the platform is fixed, correct and adjust the verticality of the formwork again, seal the gap between the bottom of the formwork and the ground, and pour the concrete in the first section.

5. Construction of the second section of the pier column:

Release the center of the pier column at the top of the pier column of the first section that has been poured, weld the steel bar of the second section, install the template of the second section, pull and fix it, install the second platform, and pour the concrete of the second section. Same as above 4.

After the concrete reaches the specified strength, the reinforcement of the third section is welded.

6. Template climbing, platform installation and dismantling:

After the bonding force between the concrete and the formwork in the second section of the pier column is sufficient to support the construction load of the third section, remove the platform and formwork in the first section, grind and arrange the formwork in situ, install it in the third section, and then re-install it. Install the platform on top of the template, and the rest of the operations are the same as in tree 5 above.

According to this operation, climb up the construction.

7. Construction of tie beam and cover beam:

When approaching the bottom of the tie beam or cover beam, the top of this section of the formwork is replaced with an adjustment section of appropriate length, and the top elevation of this section is carefully adjusted to make it equal to the bottom elevation of the tie beam or cover beam. The platform is installed on the adjustment section,

Pour this section of concrete.

First, remove the platform and the formwork of the adjustment section, install the support hoop for the construction of the tie beam or the cover beam on the adjustment section, and then install the lateral support and the bottom plate.

On the ground, the combined formwork of the tie beam and the pier column, the side plate of the tie beam and the module forming the platform are connected and fixed, or the side plate and end plate of the cover beam and the module forming the platform are connected and fixed.

At the same time, install a section of pier column reinforcement and tie beam reinforcement above the adjustment section.

The combination of the formwork and the module is hoisted into place, connected and fixed, and concrete is poured. Remove the platform and formwork and climb the upper section.

The construction method of the cover beam is the same.

The preferred embodiments for carrying out the present invention have been described in detail above, but it should be understood that these embodiments are intended to be illustrative only and not intended to limit the scope, applicability, or configuration of the invention in any way. The scope of protection of the present invention is defined by the appended claims and their equivalents. Those skilled in the art can make many changes to the foregoing embodiments under the teaching of the present invention, and these changes all fall within the protection scope of the present invention.

Claims (10)

1. A construction module, comprising:

a module frame;

the connecting part is used for connecting and assembling with an adjacent structural part, and the connecting part is arranged on at least one side of the module frame; and

a fence disposed outside a top of the module frame.

2. The construction module of claim 1, wherein the module frame comprises:

an upper support frame;

a lower support frame; and

the connecting rod is arranged between the upper support frame and the lower support frame, and a pedal is laid on the upper support frame.

3. The construction module according to claim 2, wherein the lower support frame is disposed in an inclined manner, and the upper support frame is disposed horizontally; or the lower support frame and the upper support frame are arranged in parallel;

the lower support frame is vertically aligned with each side edge of the upper support frame; or at least one side surface between the lower support frame and the upper support frame is an inclined plane.

4. A construction block according to any one of claims 1-3, wherein the cross-section of the block frame is a fan, rectangular or L-shaped structure.

5. The assembly module of claim 1, wherein the connecting portion is a connecting screw or a connecting pin; or the connecting part comprises a connecting block which is arranged on the side part of the module frame, and the connecting block on the module frame is connected with the connecting block on the corresponding structural part through a connecting piece;

the module frame and the enclosure are fixedly connected through bolts; or the module frame is provided with a socket, the lower part of the enclosure is provided with a plug corresponding to the socket, and a connecting bolt is arranged between the plug and the socket.

6. A modular construction platform is arranged on the outer side of an abutment template and is characterized by comprising the assembling modules according to any one of claims 1 to 5, wherein the assembling modules are annularly attached to the outer side of the abutment template; the adjacent two modules are connected and fixed through connecting parts and between the assembly modules and the abutment templates, and a plurality of surrounding barriers are circumferentially distributed on a construction platform formed by the assembly modules.

7. The modular construction platform of claim 6, wherein the construction platform is in the shape of a circular or rectangular ring; be provided with interface channel between two adjacent bridge piers, interface channel includes a plurality of modules of assembling, just interface channel's the module of assembling and the module of assembling of construction platform on the bridge pier are as an organic whole assembled and are connected, interface channel's both sides all are provided with encloses the fender.

8. A modular construction platform construction method is used for the construction of the modular construction platform as claimed in claim 6 or 7, and is characterized by comprising the following steps:

assembling the abutment templates, and selecting corresponding assembling modules according to the structural size of the abutment templates of the bridge abutments;

assembling all the assembling modules, integrally hoisting, and arranging reinforcing ribs on the abutment template to finish the fixation of the construction platform and the abutment template; or reinforcing ribs are firstly arranged on the pier template, then the splicing modules are sequentially lifted, the splicing modules are sequentially connected and fixed with the corresponding reinforcing ribs, and two adjacent splicing modules are connected and fixed at the same time;

an inclined top support is arranged between the side wall of the abutment template and the bottom of the assembling module;

and carrying out stability detection on the assembled construction platform.

9. The modular construction platform construction method according to claim 8, wherein the assembled modules are pre-assembled and the stability of the assembled modules is detected before the construction platform is assembled;

when two bridge abutments are constructed synchronously and a connecting channel is arranged between the two bridge abutments, the assembling modules of the connecting channel are assembled and hoisted integrally through hoisting equipment after the assembling modules of the connecting channel are assembled and finished, and are integrally connected with the assembling modules outside the abutment templates, and an inclined jacking strut is also arranged between the bottom of the connecting channel and the abutment templates.

10. A bridge abutment construction method is characterized by comprising the following steps;

a. determining the climbing height of the template according to the bridge abutment structure, and determining the structural size of the template and the structural size of the assembly module;

b. performing installation of the reinforcement bars and the abutment form of the first section, and performing construction of the construction platform on top of the abutment form of the first section by the modular construction platform construction method according to claim 8 or 9;

c. carrying out concrete pouring on the first section;

d. repeating the steps b and c to finish the concrete pouring of the second section;

e. dismantling the assembly modules of the abutment formwork and the construction platform of the first section, installing the steel bars and the abutment formwork of the third section, and constructing the construction platform at the top of the abutment formwork of the third section by the modular construction platform construction method according to claim 8 or 9;

f. carrying out concrete pouring on the third section;

g. repeating the steps e and f until the construction of the whole bridge pier is completed;

when the tie beam or the capping beam is required to be constructed, the construction of the steel bars, the abutment templates and the construction platform of the adjusting section is carried out through the steps b and c in the adjusting section close to the bottom of the tie beam or the capping beam; and (c) when the concrete strength of the adjusting section meets the construction requirements, removing the construction platform and the abutment template of the adjusting section, mounting a supporting hoop on the poured bridge abutment, and constructing the steel bars, the abutment template and the construction platform of the tie beam or the bent cap through the steps b and c.

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