CN222991154U - Bed-jig supporting system of special-shaped large-section annular prestressed concrete structure beam - Google Patents
Bed-jig supporting system of special-shaped large-section annular prestressed concrete structure beam Download PDFInfo
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- CN222991154U CN222991154U CN202422303178.5U CN202422303178U CN222991154U CN 222991154 U CN222991154 U CN 222991154U CN 202422303178 U CN202422303178 U CN 202422303178U CN 222991154 U CN222991154 U CN 222991154U
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Abstract
A jig frame supporting system of a special-shaped large-section annular prestressed concrete structure beam comprises a bearing platform, upright posts and upright post connecting rods, wherein the upright posts are connected through the upright post connecting rods to form a frame body, the bearing platform is arranged at the top of the frame body and is used for temporarily bearing the weight of the special-shaped large-section annular prestressed concrete structure beam and a template system thereof, the upright post connecting rods are arranged horizontally or obliquely, the bearing platform comprises steel keels which are arranged in a crisscross manner, the bottoms of the steel keels are fixedly connected with the upright posts through bolts, and the bearing platform is connected with the upright posts through bolts. Compared with the existing disc buckle type scaffold support system, the scaffold support system provided by the utility model has the characteristics of small overall weight, strong bearing capacity, convenience in mass production, convenience in installation and less manual requirements.
Description
Technical Field
The utility model relates to the technical field of support of concrete templates, in particular to a jig frame supporting system of a special-shaped large-section annular prestressed concrete structure beam.
Background
In a certain reinforced concrete structural engineering, a parallelogram large ring beam and 36 structural sheet columns (with cross sections of the same) below the ring beam are used for supporting and transmitting loads, and in the structural construction process, the structural sheet columns are constructed firstly, and then the large ring beam is constructed. Because the reinforcing steel bars, templates and concrete procedures in the construction process of the large ring beam can not directly transmit stress through the structural sheet columns which are completed by construction, the load of the whole construction process is transmitted to a foundation by an effective supporting system, the weight of the whole ring beam in the beam direction per meter reaches 72t in consideration of the fact that the section of the ring beam is huge, and the whole beam is circular and is arranged in the ring direction, so that the selection and design of the supporting system are particularly important.
Currently, a tool type scaffold (such as a disc buckle type scaffold) is mainly adopted for a conventional template supporting system exceeding a certain scale, namely, an integral bearing frame body system is assembled by combining components, and a stable effect is achieved by constructing the rod pieces by the stressed rod pieces.
However, the tool scaffold has the defects that, for example, a structural beam with a construction sectional area within 10m2 is constructed, the space between the bearing upright posts of the whole scaffold body needs to reach 600 x 600, the stable diagonal braces are almost fully distributed, the rod members are densely constructed, the construction labor cost is high, the construction period of a large structural beam is long, and the leasing period of the scaffold body is long. The large ring beam of the engineering is a parallelogram ring-shaped structural beam, the load and the projection supporting area of the large ring beam are huge, if a temporary support is erected by adopting a disc-buckle scaffold, the whole material consumption is extremely high, the whole ring beam is round and is not matched with the square modulus of the disc-buckle scaffold, moreover, the whole ring beam is quite high from the bearing surface of a foundation, and the whole height-width ratio of the frame body built by adopting the disc-buckle scaffold and the infinite amplification of the reinforcement measure can also influence the whole safety.
In view of the above reasons, a new temporary support system is needed to be provided during construction of the annular prestressed concrete structural beam with special shape and large section.
Disclosure of utility model
The utility model aims to overcome the defects and provides a steel structure supporting jig frame system which is small in occupied area, good in supporting rigidity and capable of being flexibly built.
In order to achieve the above object, the present utility model is achieved by:
A jig frame supporting system of a special-shaped large-section annular prestressed concrete structure beam comprises a plurality of bearing platforms, upright posts and upright post connecting rods, wherein the upright posts are connected through the upright post connecting rods to form a frame body, the bearing platforms are arranged at the tops of the frame body and are used for temporarily bearing the weight of the special-shaped large-section annular prestressed concrete structure beam and a template system thereof, the upright post connecting rods are horizontally or obliquely arranged so as to realize horizontal connection and oblique reinforced connection between adjacent upright posts, each bearing platform comprises steel keels which are arranged in a crisscross manner, the bottoms of the steel keels are fixedly connected with the upright posts through bolts, and the bearing platforms are connected with the upright posts through bolts.
Furthermore, the jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam is characterized in that the upright posts are spliced, upright post connecting flanges are arranged at the end parts of two sides of the upright posts, and adjacent upright posts are in butt joint through the upright post connecting flanges and fixedly connected through bolts penetrating through the upright post connecting flanges.
Furthermore, in the jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam, the upright post connecting rods are spliced, the connecting rod connecting flanges are arranged at the end parts of the two sides of the upright post connecting rods, and the upright post connecting rods are connected with each other through the upright post connecting flanges through bolts or are connected with the upright posts through bolts.
Further, the jig frame supporting system of the special-shaped large-section annular prestressed concrete structure beam further comprises a connecting end, wherein the connecting end is used for connecting upper and lower adjacent vertical rods or vertical rods and connecting rods on two sides, end flanges are arranged at the top, the bottom and the side of the connecting end, and the end flanges are used for being connected with the vertical rod connecting flanges or the tie rod connecting flanges through bolts.
The jig frame supporting system is compared with the disc buckle type scaffold supporting system, and has the characteristics of mass production in factories, convenience in installation, small overall weight, high degree of mechanization, less requirement on erection labor, good integrity and the like.
Furthermore, the jig frame supporting system provided by the utility model has the following advantages when coping with the special-shaped large-section annular prestressed concrete structural beam:
1. The jig frame consists of round steel pipes, steel plate flange plates and high-strength bolts, steel pipe columns of the jig frame are uniformly processed and cut into fixed-size lengths in factories, two ends of each steel pipe column are fully welded with the flange plates to form a single steel pipe column, and stiffening rib plates are welded around the steel pipes to ensure stability. The four steel pipe stand columns are connected through steel pipe connecting rods in different directions to form a single jig frame, the connecting rod pieces are connected through a normal disc, and the steel pipe connecting ends are welded with the intersecting grooves of the steel columns. The two single-truss tire frames are connected through the steel pipe connecting rod to form a combined tire frame, the single-span ring beam between the sheet columns of the engineering structure is simultaneously supported by the two groups of combined tire frames together, and the combined tire frames are connected through the steel pipe rod pieces, so that the tire frames at the lower part of each section of ring beam form a whole. At the moment, the spacing and the angle of the single combined jig frame are controlled by adjusting the angle of the steel pipe connecting rod piece, so that the jig frame is arranged along the circular ring beam.
2. The scaffold is different from a scaffold with a disc buckle in application level and has the advantages that:
The engineering jig frame supporting system is strictly different from a disc buckle type scaffold, the disc buckle type scaffold has single structural component and mainly comprises a vertical rod (comprising a connecting disc), a cross rod and a diagonal draw bar, wherein the space between the vertical rod and the cross rod is fixed in modulus, and the diagonal draw bar conforms to the modulus arrangement of the cross rod of the vertical rod, so that the scaffold body is formed into a whole. The jig frame supporting system is a single-piece jig frame structure formed by combining two single-piece jig frames (assembled by four upright posts), and the heights and the combined sizes of the single-piece jig frame structure are unchanged due to the unchanged cross section of the ring beam, namely the jig frame supporting system of the ring beam is formed by connecting a plurality of groups of single-piece jig frame structures, the jig frame supporting systems of each section of ring beam are uniformly distributed in a matrix around the center of a circle, and the connecting distance between each section of jig frame system is controlled by only adjusting connecting rods in the erection process. At this time, the jig frame supporting system of each section of ring beam can be regarded as a combination body of four truss jig frame structures, and the jig frame supporting system of the whole ring beam is formed by combining a plurality of same combination bodies. The installation accuracy of the whole jig frame system is mainly in two links of the installation of each single truss and the installation of each section of ring beam jig frame system. The assembly process of assembly type is adopted in the assembly of the jig frame, and the process is convenient and fast in cooperation with mechanical hoisting. The drop point of each upright post of the jig frame is particularly important, and strict positioning lofting is required before installation, otherwise, the whole jig frame system deviates from the stress projection area of the ring beam, and structural bearing is affected. The mounting of the jig frames does not need excessive operators, and the mounting of each jig frame only needs 4 operators. The mounting accuracy of bed-jig requires highly, and accurate location and connection can be better more convenient equipment, reduce the spot cutting and the waste of member material, better laminating ring beam stress surface. Compared with a conventional disc buckle type scaffold, the scaffold support system is directly optimized on a support structure, fewer steel materials are used for realizing temporary support bearing of the structure, the scaffold is small in content, small in occupied area under the condition that materials are not circulated, short in installation and dismantling period, and easy to operate, and is safe and reliable, the stacking and labor input of materials are greatly reduced by adopting a factory shaping processing field combined assembly mode, the combined assembly is carried out by adopting a single scaffold and a single combined scaffold structure system, the problem that the modules are not met is avoided by connecting rods with adjustable direction angles, the stress surface of a laminated structure beam is more uniform in bearing, and meanwhile, each section of connecting rods and upright posts are fixed through high-strength bolt connection flanges, so that possible quality problems in welding are reduced.
Drawings
Fig. 1 is a schematic view of a support for a profiled large section ring beam using the jig frame support system of the present utility model.
Fig. 2 is a partial enlarged view of fig. 1.
Fig. 3 is a partial enlarged view of fig. 2.
Fig. 4 is a schematic diagram of the practice of column shoe.
Fig. 5 is a partial longitudinal cross-sectional view of fig. 1.
Fig. 6 is a partial enlarged view of fig. 5.
Fig. 7 is a partial top view of fig. 5.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the application, are intended to be within the scope of the claimed application based on embodiments of the present application.
As shown in fig. 1-7:
a jig frame supporting system of a special-shaped large-section annular prestressed concrete structure beam comprises a bearing platform 1, upright posts 2 and upright post connecting and tie bars 3, wherein a plurality of upright posts 2 are connected through the upright post connecting and tie bars 3 to form a frame body, the bearing platform 1 is arranged at the top of the frame body and is used for temporarily bearing the weight of the special-shaped large-section annular prestressed concrete structure beam and a template system thereof, the upright post connecting and tie bars 3 are arranged horizontally or obliquely so as to realize horizontal connection and oblique reinforcement connection between adjacent upright posts 1, the bearing platform 1 comprises steel keels which are arranged in a crisscross manner, the bottoms of the steel keels are fixedly connected with the upright posts 1 through bolts, and the bearing platform 1 is connected with the upright posts 2 through bolts, and the upright posts 2 are connected with the upright post connecting and tie bars 3.
As in fig. 6 and 7:
In the jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam, the upright posts 1 are spliced, upright post connecting flanges 4 are arranged at the end parts of two sides of the upright posts 1, and adjacent upright posts 1 are in butt joint through the upright post connecting flanges 4 and fixedly connected through bolts penetrating through the upright post connecting flanges 4.
In the jig frame support body of the special-shaped large-section annular prestressed concrete structure beam, the upright post connecting tie bars 3 are spliced, tie bar connecting flanges 5 are arranged at the end parts of two sides of the upright post connecting tie bars 3, and the upright post connecting tie bars 3 are connected with each other through upright post connecting flanges 4 through bolts or are connected with the upright posts through bolts.
As shown in fig. 1-3:
In the jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam, a frame body formed by upright rods 2 is annularly arranged, a bearing platform 1 arranged at the top of the frame body is also annularly arranged, and the bottom of the frame body is connected with the ground through bolts.
In the jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam, as shown in fig. 1 and 4, connecting bolts are pre-embedded in the ground and are used for being connected with the vertical rods 2, the connecting bolts form column bases through secondary pouring, and damping cushion blocks are embedded in the column bases.
The construction method of the jig frame supporting system of the special-shaped large-section annular prestressed concrete structure beam comprises the following steps of:
Step 1, combining the arrangement conditions of the on-site ring beams and the structural columns, calculating and optimizing the steel tube selection of the jig frame and the integral arrangement of the jig frame;
Step 2, deepening the drawing of the jig frame system;
step 3, processing a single upright post steel pipe, a connecting diagonal rod and a connecting cross rod (including welding of connecting ends) in a factory;
Step 4, assembling a single truss in a factory;
step 5, transporting the single moulding bed to the site;
Step 6, performing column lofting positioning according to a jig frame layout field;
step 7, mounting and reinforcing a single truss foundation section;
step 8, connecting the basic section cross bars of the single moulding bed;
step 9, installing a middle section of the single moulding bed;
step 10, connecting indirect cross bars in the single tire frames;
Step 11, repeating the steps 9-10 to finish the installation of the single tire frame, and gradually perfecting the connecting cross rod among the single tire frames in the installation process of the single tire frame;
Step 12, repeatedly arranging 6-11 to finish the installation of the single-section jig frame structure system;
Step 13, repeating the step 12 to finish the installation of the whole ring beam jig frame structure system, and gradually perfecting the connecting cross rod among the single-section jig frames in the single-section jig frame installation process;
And 14, finishing the integral installation of the jig frame, and gradually finishing the sectional acceptance inspection in the process.
While the present application has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the foregoing embodiments may be modified or equivalents may be substituted for some of the features thereof, and any modification, equivalent substitution, improvement, etc. within the spirit and principles of the present application should be included in the scope of the present application.
Claims (6)
1. A jig frame supporting system of a special-shaped large-section annular prestressed concrete structure beam is characterized by comprising a bearing platform, upright posts and upright post connecting rods, wherein a plurality of upright posts are connected through the upright post connecting rods to form a frame body, the bearing platform is arranged at the top of the frame body and is used for temporarily bearing the weight of the special-shaped large-section annular prestressed concrete structure beam and a template system thereof, the upright post connecting rods are horizontally or obliquely arranged so as to realize horizontal connection and oblique reinforced connection between adjacent upright posts, the bearing platform comprises steel keels which are vertically and horizontally crossed and are fixedly connected with the upright posts through bolts, and the bearing platform is connected with the upright posts through the bolts.
2. The jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam, as claimed in claim 1, is characterized in that the upright posts are spliced, upright post connecting flanges are arranged at the end parts of two sides of the upright posts, and adjacent upright posts are in butt joint through the upright post connecting flanges and fixedly connected through bolts penetrating through the upright post connecting flanges.
3. The jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam according to claim 1, wherein the upright post connecting bars are spliced, tie bar connecting flanges are arranged at two side ends of the upright post connecting bars, and the upright post connecting bars are connected with each other through upright post connecting flanges by bolts or are connected with the upright post by bolts.
4. The jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam according to claim 1 or 3, further comprising connecting ends, wherein the connecting ends are used for connecting upper and lower adjacent vertical rods or connecting rods of the vertical rods and the vertical rods on two sides, and end flanges are arranged at the top, the bottom and the side surfaces of the connecting ends and are used for connecting the connecting flanges of the vertical rods or the connecting flanges of the tie bars through bolts.
5. The jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam, as claimed in claim 1, is characterized in that a frame body formed by the vertical rods is arranged in an annular mode, a bearing platform arranged at the top of the frame body is also arranged in an annular mode, and the bottom of the frame body is connected with the ground through bolts.
6. The jig frame supporting system of the special-shaped large-section annular prestressed concrete structural beam, which is disclosed in claim 5, is characterized in that connecting bolts are pre-embedded in the ground and are used for being connected with vertical rods, the connecting bolts form column bases through secondary pouring, and damping cushion blocks are embedded in the column bases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422303178.5U CN222991154U (en) | 2024-09-20 | 2024-09-20 | Bed-jig supporting system of special-shaped large-section annular prestressed concrete structure beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422303178.5U CN222991154U (en) | 2024-09-20 | 2024-09-20 | Bed-jig supporting system of special-shaped large-section annular prestressed concrete structure beam |
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| Publication Number | Publication Date |
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| CN222991154U true CN222991154U (en) | 2025-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422303178.5U Active CN222991154U (en) | 2024-09-20 | 2024-09-20 | Bed-jig supporting system of special-shaped large-section annular prestressed concrete structure beam |
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| CN (1) | CN222991154U (en) |
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