CN218346406U - Groove-type connected prefabricated frame type base beam - Google Patents
Groove-type connected prefabricated frame type base beam Download PDFInfo
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- CN218346406U CN218346406U CN202221706165.7U CN202221706165U CN218346406U CN 218346406 U CN218346406 U CN 218346406U CN 202221706165 U CN202221706165 U CN 202221706165U CN 218346406 U CN218346406 U CN 218346406U
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Abstract
The utility model discloses a prefabricated frame-type base roof beam that recess formula is connected, including prefabricated prestressing force base roof beam, two single prestressed longitudinal beams and horizontal bottom plate, transverse connection piece prefabrication are built into the integrated structure in the prefabricated prestressing force base roof beam, transverse connection piece is located two single prestressed longitudinal beams that are parallel arrangement and horizontal bottom plate and encloses the space that closes, and base roof beam recess is located between the adjacent transverse connection piece, the inside of base roof beam recess is equipped with the reservation and exposes the stirrup. The base beam groove of prefabricated prestressing force base roof beam sets up in this technical scheme and reserves and exposes the stirrup, and the interval of reserving to expose the stirrup can be according to the vertical adjustment demand setting of prefabricated construction post level, realizes that prefabricated prestressing force base roof beam places the back that finishes, the purpose of the horizontal displacement adjustment of prefabricated construction post, the degree of depth of base beam groove, the degree of depth of reserving to expose the stirrup and the vertical upward or vertical downward adjustment adaptation of prefabricated construction post. The whole structure is convenient for construction, and the construction process is easy to control.
Description
Technical Field
The utility model relates to an urban rail transit technical field, concretely relates to prefabricated frame-type base roof beam that recess formula is connected.
Background
At present, foundation members in the fields of civil buildings and urban rail transit generally adopt a cast-in-place construction process, a scheme of prefabricating the foundation members is less adopted, a scheme of prefabricating independent foundations is adopted in a few projects, and the traditional connection mode between the independent foundations and upper structure columns is grouting sleeves or steel bar grout anchor lap joint.
Under the construction scheme of lapping the grouting sleeve or the steel bar anchor, a construction joint exists between the foundation and the upper structural column, so that the integral connection performance of the foundation and the upper structural column is poor. Most of the existing foundation members adopt a cast-in-place process, and although the construction process is simple and the structural integrity is good, the existing foundation members have the defects of slow construction progress, high pollution, uncontrollable quality and the like.
The existing foundation member also adopts a prefabricated foundation scheme, but the traditional prefabricated foundation member is heavy and large in size, large-scale machinery needs to be used for transportation, the prefabricated foundation member is difficult to connect with other parts, the precision control is poor, and meanwhile, the difficult problem that once the lower prefabricated foundation is placed, the upper prefabricated structural column cannot be adjusted exists
SUMMERY OF THE UTILITY MODEL
The utility model provides a prefabricated frame-type base beam that recess formula is connected, through setting up prefabricated prestressed base beam, prefabricated prestressed base beam exposes the stirrup including reserving, single limb prestressing longitudinal beam, the horizontal base plate, the transverse connection piece, the base beam recess, reserve and expose the stirrup, vertically lead to long ordinary atress reinforcing bar, vertically lead to long prestressing steel bar and the internal stirrup of roof beam, single limb prestressing longitudinal beam, horizontal base plate and transverse connection piece, the base beam recess, vertically lead to long ordinary atress reinforcing bar, vertically lead to long prestressing steel bar and the internal stirrup prefabrication of roof beam and pour into integrated structure, whole prefabricated prestressing base beam is prefabricated structure, and whole structure size is little, the structure is light and handy, be convenient for the construction installation, and the work progress is easily controlled, thereby the component that has solved and has adopted cast-in-place technology to obtain is not convenient for transportation, lead to constructing technical problem such as slow.
The utility model discloses a following technical scheme realizes:
the utility model provides a prefabricated frame-type base roof beam that recess formula is connected, includes prefabricated prestressed base roof beam, prefabricated prestressed base roof beam includes that two are parallel arrangement's single-limb prestressing longitudinal beam, horizontal base plate, transverse connection piece, base roof beam recess, reserve and expose the stirrup, vertically lead to long ordinary atress reinforcing bar, vertically lead to long prestressing steel bar and the internal stirrup of roof beam, transverse connection piece is located two spaces that are that parallel arrangement's single-limb prestressing longitudinal beam and horizontal base plate enclose and close, and the base roof beam recess is located between the adjacent transverse connection piece, the inside of base roof beam recess is equipped with reserves and exposes the stirrup.
The main innovation point of the groove-type connected prefabricated frame type base beam in the technical scheme is that the single-limb prestressed longitudinal beam, the transverse bottom plate, the transverse connecting block and the base beam groove which form the prefabricated frame type base beam are prefabricated and poured into an integrated structural member in advance in a factory. The overall structure size of the prefabricated structural member is small, construction and installation are facilitated, the base beam groove in the prefabricated prestressed base beam is connected with other parts, and overall connection is stable. The exposed stirrups are arranged in the grooves of the base beam, so that the bearing capacity and strength of the integrally prefabricated frame type base beam can be enhanced, and meanwhile, the stability and adjustability of connection with other parts are facilitated.
In the technical scheme, a groove space with an upper end opening is enclosed by two single-limb prestressed longitudinal beams and transverse bottom plates which are arranged in parallel, base beam grooves and transverse connecting blocks which are distributed alternately are arranged in the groove space, namely the transverse connecting blocks are positioned between the adjacent transverse connecting blocks, and the transverse connecting blocks, the base beam grooves, the single-limb prestressed longitudinal beams and the transverse bottom plates are prefabricated and poured into an integrated structural member.
Optionally, the pre-stressed base beams and cross beams form a pre-fabricated frame structure system.
Optionally, the reserved exposed stirrups are transversely arranged in the base beam groove, the distance between the reserved exposed stirrups is matched with the horizontal longitudinal adjustment amount of the prefabricated structural column, and the prefabricated structural column is located above the base beam groove.
Optionally, during installation, after the prefabricated structural column is inserted into the base beam groove, the prefabricated structural column and the base beam groove connection part are cast in situ to form a cast-in-situ connection part.
Optionally, the depth of the base beam groove and the depth of the reserved exposed stirrups are matched with the vertical adjustment amount of the prefabricated structural column.
Optionally, the inner wall of the base beam groove and the bottom surface of the prefabricated structural column are roughened.
Optionally, the prefabricated structural column comprises a prefabricated column and a column bottom reserved door-shaped rib arranged at the bottom of the prefabricated column, and the column bottom reserved door-shaped rib is in a closed door shape and is transversely arranged; the reserved door-shaped rib at the column bottom is inserted into the reserved exposed stirrup, so that the connection node of the prefabricated structural column and the prefabricated prestressed base beam achieves the purpose of rigid connection.
Optionally, a rear insert distribution rib is inserted into the base beam groove, penetrates through the inside of the reserved door-shaped rib at the column bottom, and is located on the lower portion of the reserved exposed stirrup.
Optionally, the longitudinal full-length common stressed steel bars arranged in the single-limb prestressed longitudinal beam are distributed on the inner periphery of the beam body in a right trapezoid shape and are connected with the stirrups in the beam body in a staggered manner, the reserved exposed stirrups are respectively connected with staggered points of the longitudinal full-length common stressed steel bars and the stirrups in the beam body on the same height as the middle part in the beam body on the two sides in a staggered manner, the reserved exposed stirrups and the stirrups in the beam body are arranged at intervals in the longitudinal direction, and the longitudinal full-length prestressed steel bars are located in a right trapezoid area formed by enclosing the longitudinal full-length common stressed steel bars. Specifically, the longitudinal full-length prestressed reinforcements are distributed in parallel in the following steps: i. the middle lower part of the right trapezoid area is close to the position of the bottom part of the common longitudinal stressed steel bar; and/or ii, the right-angle trapezoid area is positioned at a position consistent with the height of the reserved exposed stirrups and is connected with the reserved exposed stirrups in a staggered manner.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1) In the technical scheme, a prefabricated frame structure system is formed by arranging the prefabricated prestressed base beams and the cross beams, and compared with a raft foundation form, the prefabricated frame structure system has light dead weight and saves materials; compared with an independent foundation form, the foundation members are mutually connected, and the foundation member has high integrity and good differential settlement resistance.
2) This technical scheme is through setting up prefabricated prestressed base roof beam, and the interval of reserving to expose the stirrup can set up according to the demand of the horizontal vertical adjustment of prefabricated construction post, has realized that prefabricated prestressed base roof beam places the back that finishes, the purpose of the horizontal displacement adjustment of prefabricated construction post, the base roof beam recess the degree of depth of reserving to expose the stirrup with the vertical ascending or vertical decurrent adjustment range adaptation of prefabricated construction post, overall structure are convenient for construct the installation, and the work progress is easily controlled.
3) The prefabricated prestressed base beam in the technical scheme comprises a single-limb prestressed longitudinal beam, a transverse bottom plate and a transverse connecting block, is prefabricated and poured into an integrated structural member, is integrally of a prefabricated structure, is light and handy in structure, convenient to transport, beneficial to installation and construction with other structural connections, and wide in application range.
Drawings
FIG. 1 is a schematic view of a prefabricated frame structure system formed by the prefabricated prestressed base beams and the cross beams of the present invention;
FIG. 2 is a schematic view of the connection between the precast prestressed base beam and the precast structural column of the present invention;
FIG. 3 is a schematic view of the pre-stressed base beam of the present invention;
FIG. 4 is a cross-sectional view of the pre-stressed base beam of the present invention;
FIG. 5 is a schematic view of the prefabricated structural column of the present invention;
figure 6 is the utility model discloses a prefabricated prestressed base roof beam and prefabricated construction post are connected cross section schematic diagram.
Wherein: 1-prefabricating a prestressed base beam, 2-cross beams, 3-prefabricating structural columns, 4-inserting distribution ribs at the back, 5-casting a connecting part in place, 101-single-limb prestressed longitudinal beams, 102-transverse bottom plates, 103-transverse connecting blocks, 104-base beam grooves, 105-reserving exposed stirrups, 106-longitudinal full-length common stressed reinforcements, 107-longitudinal full-length prestressed reinforcements, 108-stirrups in a beam body, 301-prefabricating columns and 302-reserving door-shaped reinforcements at the bottoms of the columns.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments are combined to further explain the present invention in detail, and the exemplary embodiments and descriptions thereof of the present invention are only used to explain the present invention, and are not intended to limit the present invention.
Example 1:
as shown in fig. 1-6, a groove-type connected prefabricated frame-type base beam comprises a prefabricated prestressed base beam 1, wherein the prefabricated prestressed base beam 1 comprises two single-limb prestressed longitudinal beams 101 arranged in parallel, a transverse bottom plate 102, transverse connecting blocks 103, a base beam groove 104, a reserved exposed stirrup 105, a longitudinal through-length common stressed steel bar 106, a longitudinal through-length prestressed steel bar 107 and stirrups 108 in a beam body, the transverse connecting blocks are positioned in a space enclosed by the two single-limb prestressed longitudinal beams and the transverse bottom plate arranged in parallel, the base beam groove is positioned between adjacent transverse connecting blocks, and the reserved exposed stirrup 105 is arranged in the base beam groove.
The prefabricated prestressed base beam 1 and the cross beam 2 form a frame structure system to form a prefabricated frame type base beam. Specifically, two prefabricated prestressed base beams 1 which are arranged in parallel are connected through a cross beam 2, and the prefabricated prestressed base beams 1 and the cross beam 2 form a prefabricated frame structure. In this embodiment, the prefabricated prestressed base beam 1 is constructed by adopting a pretensioning construction process, a longitudinal full-length normal stressed steel bar 106, a longitudinal full-length prestressed steel bar 107 and a stirrup 108 in the beam body are laid in advance in a factory, wherein the longitudinal full-length normal stressed steel bar 106 and the stirrup 108 in the beam body form a steel reinforcement cage framework, the longitudinal full-length prestressed steel bar 107 is arranged on the inner side of the steel reinforcement cage framework, then construction templates for the prefabricated prestressed base beam 1 and the crossbeam 2 are set up, the longitudinal full-length prestressed steel bar 107 is tensioned to a specified value, concrete is poured, maintenance is finished, and the prefabricated prestressed base beam 1 and the crossbeam 2 form a prefabricated frame structure system. Wherein base beam groove 104 is for falling the trapezoidal form, and the pouring of the concrete of being convenient for is closely knit, and base beam groove 104 inner wall surface carries out "texturing" and handles, and base beam groove 104's degree of depth, width are according to the vertical, the level of adjustment volume is synthesized to prefabricated structural column 3 and are confirmed. The reserved exposed stirrups 105 are transversely arranged, and the distance between the reserved exposed stirrups 105 can be set to be 100mm to 150mm so as to meet the horizontal longitudinal adjustment amount of the prefabricated structural column 3.
The reserved exposed stirrups 105 are arranged in the base beam groove 104 in a transverse mode, the distance between the reserved exposed stirrups 105 is matched with the horizontal longitudinal, transverse and vertical adjustment amount of the prefabricated structural column 3, and the prefabricated structural column 3 is located above the base beam groove 104. During installation, after the prefabricated structural columns 3 are inserted into the base beam grooves 104, the connection areas of the prefabricated structural columns 3 and the base beam grooves 104 are cast in situ to form cast-in-situ connection parts 5. The depth of the base beam groove 104 and the depth of the reserved exposed stirrups 105 are matched with the vertical adjustment amount of the prefabricated structural column 3.
Specifically, the depth of the base beam groove 104 and the depth of the reserved exposed stirrups 105 all satisfy the position adjustment amount of the prefabricated structural column 3 within 30mm of the vertical upward and downward directions. The width of the base beam groove 104 and the horizontal distance of the reserved exposed stirrups 105 meet the horizontal, horizontal and longitudinal 50mm amplitude adjustment amount of the prefabricated structural column 3, the construction positioning precision and difficulty of the prefabricated prestressed base beam 1 can be effectively reduced, and the position adjustment purpose of the prefabricated structural column 3 is realized.
Example 2:
in this embodiment, on the basis of embodiment 1, the prefabricated structural column 3 includes a prefabricated column 301 and a column bottom reserved door-shaped rib 302 arranged on the prefabricated column 301, and the column bottom reserved door-shaped rib 302 is in a closed door shape and is transversely arranged; the reserved door-shaped rib 302 at the column bottom is inserted between the adjacent reserved exposed stirrups 105, the vertical, longitudinal and transverse horizontal positions of the prefabricated structural column 3 are adjusted, and then the cast-in-place connecting part 5 is constructed, so that the connecting node of the prefabricated structural column 3 and the prefabricated prestressed base beam 1 achieves the purpose of rigid connection.
The reserved portal-shaped rib 302 at the column bottom is transversely arranged, so that after the reserved portal-shaped rib 302 at the column bottom is vertically inserted, the horizontal position adjustment amount of the prefabricated column 301 within 50mm can be realized, and the stirrup spacing of the reserved exposed stirrups 105 can realize the position adjustment amount of the prefabricated column 301 within 50mm horizontally. The setting of reserving door shape muscle 302 at the bottom of this embodiment post does benefit to being connected of prefabricated construction post 3 and prefabricated prestressed base roof beam 1, and after prefabricated prestressed base roof beam 1 installed, the accessible was adjusted and is reserved the stirrup interval that exposes stirrup 105, carries out horizontal longitudinal positioning adjustment and installation to prefabricated construction post 3.
Example 3:
in this embodiment, on the basis of the above embodiment, the rear inserting distribution ribs 4 are inserted into the base beam grooves 104, and the rear inserting distribution ribs 4 pass through the inside of the reserved door-shaped rib 302 at the column bottom and are located at the lower part of the reserved exposed stirrup 105. The rear inserting distribution ribs 4 are positioned at the lower parts of the reserved exposed stirrups 105, the closed door-shaped interiors of the door-shaped ribs 302 are reserved at the column bottom, and the anti-pulling anchoring effect of the door-shaped ribs 302 reserved at the column bottom is effectively improved.
Example 4:
on the basis of the above embodiment, the longitudinal through-length ordinary stressed steel bars 106 arranged in the single-limb prestressed longitudinal beam 101 are distributed on the inner periphery of the beam body in a right trapezoid shape and are connected with the stirrups in the beam body in a staggered manner, the reserved exposed stirrups 105 are respectively connected with staggered points of the longitudinal through-length ordinary stressed steel bars 106 and the stirrups 108 in the beam body at the same height as the middle part in the beam body at two sides in a staggered manner, the reserved exposed stirrups 105 and the stirrups 108 in the beam body are arranged at intervals in the longitudinal direction, the longitudinal through-length prestressed steel bars 107 are located in a right trapezoid area formed by enclosing the longitudinal through-length ordinary stressed steel bars 106, and specifically, the longitudinal through-length ordinary stressed steel bars 106 can be distributed in parallel at a position close to the bottom longitudinal through-length ordinary stressed steel bars 106 at the middle lower part of the right trapezoid area and at a position in the right trapezoid area and at the same height as the reserved exposed stirrups 105 and are connected with the reserved exposed stirrups 105 in a staggered manner. The optimized steel bar position distribution improves the stability and the stress capacity of the steel bars, and has higher bearing capacity and crack resistance.
In this embodiment, the precast prestressed base beam 1 is constructed by a pretensioning method, ordinary steel bars and prestressed steel wires are laid in a factory, construction templates for the precast prestressed base beam 1 and the cross beam 2 are set up, the prestressed steel wires are tensioned to a specified value, concrete is poured, and after maintenance, the precast prestressed base beam 1 and the cross beam 2 form a precast frame structure system. The inner wall surface of the base beam groove 104 is subjected to roughening treatment, and the depth and the width of the base beam groove 104 are comprehensively determined according to the vertical and horizontal adjustment amount of the prefabricated structural column 3. Wherein the reserved exposed stirrups 105 are transversely arranged, and the distance between the stirrups meets the horizontal and longitudinal adjustment amount of the prefabricated structural column 3.
The inner walls of the base beam grooves 104 and the bottom surfaces of the prefabricated structural columns 3 are subjected to texturing treatment, so that the connection strength of the base beam grooves 104, the prefabricated structural columns 3 and the cast-in-place connecting part 5 can be improved.
According to the above technical scheme, the utility model discloses an optimal design to reinforcing bar in the prefabricated prestressing force base roof beam 1 makes it successfully satisfy the effect purpose of directly accepting the direct transmission of top rail. On the first hand, the reserved exposed stirrups 105 and the reserved door-shaped reinforcements 302 on the column bottom above the reserved exposed stirrups can be arranged in a row-by-row crossed mode, so that the pouring structural strength of the cast-in-place connecting part 5 in the base beam groove 104 is improved, and on the second hand, the pouring of the cast-in-place connecting part 5 is enabled to be more sufficient and compact through the trapezoidal structural design of the single-limb prestressed longitudinal beam 101. In the third aspect, the longitudinal through-length common stressed steel bars 106 are distributed in a right trapezoid in the beam bodies on the two sides, so that the stress capacity of the steel bars is improved, the structure is stable, and the reserved exposed stirrups 105 are well supported; in the fourth aspect, the transverse connection block 103 makes the base beam groove 104 distributed in a spaced point shape, so that the overall stability of structural connection is improved, the staggering and dislocation caused by overlarge stress is preliminarily reduced, and the connection occupation ratio of the cast-in-place connection part 5 is reduced. In the fifth aspect, the longitudinal full-length prestressed steel bars 107 and the rear inserting distribution ribs 4 which are added are optimized respectively, the support and stress stability of the whole steel bars are further improved step by step, meanwhile, the longitudinal full-length prestressed steel bars and the rear inserting distribution ribs are further staggered with the reserved portal-shaped ribs 302 at the column bottom, the safety and stability of the whole structure are greatly improved under the working condition that the upper steel rail directly transfers force, and the adverse phenomena of deformation, deviation or dislocation and the like caused by overlarge stress in the process of accepting direct force transfer are prevented.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The groove-type connected prefabricated frame type base beam is characterized by comprising a prefabricated prestressed base beam (1), wherein the prefabricated prestressed base beam (1) comprises two single-limb prestressed longitudinal beams (101), a transverse bottom plate (102), transverse connecting blocks (103), a base beam groove (104), reserved exposed stirrups (105), longitudinal full-length common stressed steel bars (106), longitudinal full-length prestressed steel bars (107) and stirrups (108) in a beam body, which are arranged in parallel, the single-limb prestressed longitudinal beams (101), the transverse bottom plate (102), the transverse connecting blocks (103), the base beam groove (104), the longitudinal full-length common stressed steel bars (106), the longitudinal full-length prestressed steel bars (107) and the stirrups (108) in the beam body are prefabricated and poured into an integrated structural member, the transverse connecting blocks (103) are located in a space surrounded by the two single-limb prestressed longitudinal beams (101) and the transverse bottom plate (102) which are arranged in parallel, the base beam groove (104) is located between the adjacent transverse connecting blocks (103), and the reserved prestressed stirrups (105) are arranged in the base beam groove (104).
2. A groove-jointed prefabricated frame-type base beam as claimed in claim 1, wherein: the prefabricated prestressed base beam (1) and the cross beam (2) form a prefabricated frame structure system.
3. A groove-jointed prefabricated frame-type base beam as claimed in claim 1, wherein: the reserved exposed stirrups (105) are transversely arranged in the base beam groove (104), the distance between the reserved exposed stirrups (105) is matched with the horizontal longitudinal, transverse and vertical adjustment amount of the prefabricated structural column (3), and the prefabricated structural column (3) is located above the base beam groove (104).
4. A groove-jointed prefabricated frame-type base beam as claimed in claim 3, wherein: during installation, after the prefabricated structural columns (3) are inserted into the base beam grooves (104), the connection areas of the prefabricated structural columns (3) and the base beam grooves (104) are cast in situ to form cast-in-situ connection parts (5).
5. A groove-jointed prefabricated frame-type base beam as claimed in claim 4, wherein: the depth of the base beam groove (104) and the depth of the reserved exposed stirrups (105) are matched with the vertical adjustment amount of the prefabricated structural column (3).
6. A groove-jointed prefabricated frame-type base beam as claimed in claim 3, wherein: the inner wall of the base beam groove (104) and the bottom surface of the prefabricated structural column (3) are subjected to texturing treatment.
7. A grooved connection prefabricated frame base beam as defined in claim 3, wherein: the prefabricated structural column (3) comprises a prefabricated column (301) and a reserved portal-shaped rib (302) arranged at the bottom of the prefabricated column (301), and the reserved portal-shaped rib (302) at the bottom of the column is in a closed portal shape and is transversely arranged; the reserved door-shaped rib (302) at the column bottom is inserted into the reserved exposed stirrup (105).
8. A groove-jointed prefabricated frame-type base beam as claimed in claim 7, wherein: and a rear inserting distribution rib (4) is inserted into the base beam groove (104), and the rear inserting distribution rib (4) penetrates through the inside of the reserved door-shaped rib (302) at the column bottom and is positioned at the lower part of the reserved exposed stirrup (105).
9. A groove-jointed prefabricated frame-type base beam as claimed in claim 1, wherein: the longitudinal through-length common stress steel bars (106) arranged in the single-limb prestressed longitudinal beam (101) are distributed on the inner periphery of the beam body in a right trapezoid mode and are connected with stirrups (108) in the beam body in a staggered mode, reserved exposed stirrups (105) are respectively connected with staggered points of the longitudinal through-length common stress steel bars (106) and the stirrups (108) in the beam body on the two sides, the longitudinal through-length common stress steel bars (106) and the stirrups (108) in the beam body are located on the same height of the middle portion in the beam body in a staggered mode, the reserved exposed stirrups (105) and the stirrups (108) in the beam body are arranged at intervals in a longitudinal mode, and the longitudinal through-length prestressed steel bars (107) are located in a right trapezoid area formed by enclosing of the longitudinal through-length common stress steel bars (106).
10. A groove-jointed prefabricated frame-type base beam as claimed in claim 9, wherein: the longitudinal full-length prestressed reinforcements (107) are distributed in parallel: i. the middle lower part of the right-angle trapezoid area is close to the position of the bottom longitudinal full-length common stressed steel bar (106), and/or ii, the position in the right-angle trapezoid area is consistent with the height of the reserved exposed stirrup (105) and is connected with the reserved exposed stirrup (105) in a staggered mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221706165.7U CN218346406U (en) | 2022-06-30 | 2022-06-30 | Groove-type connected prefabricated frame type base beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221706165.7U CN218346406U (en) | 2022-06-30 | 2022-06-30 | Groove-type connected prefabricated frame type base beam |
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| Publication Number | Publication Date |
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| CN218346406U true CN218346406U (en) | 2023-01-20 |
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| CN202221706165.7U Active CN218346406U (en) | 2022-06-30 | 2022-06-30 | Groove-type connected prefabricated frame type base beam |
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| CN (1) | CN218346406U (en) |
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- 2022-06-30 CN CN202221706165.7U patent/CN218346406U/en active Active
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