CN214696131U - Beam-column joint for prefabricated assembled PEC structural system - Google Patents
Beam-column joint for prefabricated assembled PEC structural system Download PDFInfo
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- CN214696131U CN214696131U CN202022841932.2U CN202022841932U CN214696131U CN 214696131 U CN214696131 U CN 214696131U CN 202022841932 U CN202022841932 U CN 202022841932U CN 214696131 U CN214696131 U CN 214696131U
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Abstract
The utility model discloses a beam column node for prefabricating an assembled PEC structural system, wherein the node comprises a prefabricated PEC column, a prefabricated PEC cross beam with an end plate and a prefabricated PEC longitudinal beam with an end plate; the prefabricated PEC column comprises an H-shaped steel concrete column, unilateral bolt pore channels are arranged on the H-shaped steel concrete column, the unilateral bolt pore channels are arranged on left and right flanges of the H-shaped steel concrete column and are symmetrically arranged left and right relative to a web plate of the H-shaped steel concrete column, and the unilateral bolt pore channels are positioned on the outer sides of the upper and lower flanges of the beam; the H-shaped steel concrete column is also provided with channel steel, the channel steel is welded on the inner sides of left and right flanges of the H-shaped steel concrete column, and a welding seam is parallel to the flange direction of the column. The utility model has the advantages of being simple in structure and convenient in operation, the material is saved, the cost is lower, can realize direct on-the-spot assembly in PEC component mill's prefabricated back, shortens construction cycle, and easily installation also can not form building rubbish because of the template of demolising simultaneously, the high-efficient environmental protection of work progress.
Description
Technical Field
The utility model relates to an assembly type building engineering technical field, concretely relates to beam column node for prefabricating assembled PEC structure system.
Background
In recent years, in order to actively respond to a green development concept, an energy-saving and environment-friendly construction mode is advocated, the sustainable development of the building industry is realized, and the nation has a strong policy for the building industry from a strategic development level, so that the assembly type building is encouraged and vigorously popularized.
The partially-clad steel-concrete composite structure (PEC structure) is a composite structure formed by binding reinforcing steel bars between flanges of H-shaped steel and filling concrete, and is applied to the fields of high-rise buildings, large-span structures, engineering reinforcement and the like due to the advantages of high bearing capacity, good ductility, excellent fire resistance and corrosion resistance and the like. However, in the conventional PEC structure beam-column joint area, reinforcing steel bars need to be bound, concrete is poured after templates are erected, and the field pollution phenomenon caused by wet operation and slurry leakage exists in the concrete pouring process. The conventional connection method of the PEC structure beam-column joint is characterized in that a pore channel is reserved on a web plate, a high-strength bolt is penetrated through the pore channel, a template is arranged after a reinforcing steel bar is bound, concrete is poured afterwards, the conditions of exposed reinforcing steel bars and corrosion can occur, the steps are multiple, a large amount of manpower and material resources are consumed, and the construction period is long. The template dismantled after the concrete reaches certain intensity can not be recovered and utilized highly, form the construction waste, do not accord with the green environmental protection's of assembled structure theory.
SUMMERY OF THE UTILITY MODEL
The utility model provides a beam column node for prefabricating assembled PEC structural system can solve the defect among the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a beam-column node for a prefabricated assembled PEC structural system comprises a prefabricated PEC column, prefabricated PEC longitudinal and transverse beams with end plates, and fastening connectors; the prefabricated PEC column comprises an H-shaped steel coated concrete column, a node stiffening steel plate, reserved fastener holes and space, the prefabricated PEC longitudinal and transverse beam with the end plate comprises an H-shaped steel coated concrete beam and an end plate with reserved fastener holes, and the fastening connecting piece comprises a fastener capable of realizing unilateral connection, such as a unilateral bolt or a ring groove rivet.
Furthermore, the node stiffening steel plate comprises two transverse stiffening steel plates and a longitudinal stiffening steel plate, wherein the two transverse stiffening steel plates are welded on left and right flanges of the prefabricated PEC column H-shaped steel and are highly positioned at upper and lower flange parts of the PEC beam, the longitudinal stiffening steel plate is welded between the two transverse stiffening steel plates, and holes are reserved in the two transverse stiffening steel plates to provide channels for later-stage concrete pouring.
Furthermore, both sides of the left and right flanges of the H-shaped steel of the prefabricated PEC column are provided with a plurality of fastener pore channels, the fastener pore channels are symmetrically arranged on the left and right flanges of the PEC column and correspond to the prefabricated pore channels of the end plates of the PEC beam, the prefabricated PEC column is connected with the end plates of the prefabricated PEC beam through fasteners, a section of channel steel is welded outside the fastener pore channels on the inner sides of the left and right flanges of the PEC column to cover the fastener pore channels to form a closed space, and the insertion positions of the fasteners are reserved.
Furthermore, a steel cover plate is welded between the left flange and the right flange of the H-shaped steel of the prefabricated PEC column, the length range can include the whole node area, meanwhile, a fastener hole channel is reserved on the steel cover plate, a section of channel steel is welded outside the fastener hole channel at the back of the steel cover plate, the fastener hole channel is covered, a closed space is formed, and the insertion position of the fastener is reserved.
Furthermore, the prefabricated PEC longitudinal beam is welded with an end plate, a plurality of stiffening ribs are arranged at the joint of the end plate, the upper flange, the lower flange and the web plate, fastener pore channels corresponding to the left flange and the right flange of the H-shaped steel column are formed in the end plate, and the connection between the prefabricated PEC longitudinal beam with the end plate and the PEC column is realized through fasteners.
Further, the fastening connecting piece comprises a fastener which can realize unilateral connection, such as a unilateral bolt or a ring groove rivet.
According to the technical scheme, the utility model discloses a prefabricated PEC post, take prefabricated PEC longitudinal girder, the fastening connection piece of end plate. The prefabricated PEC column comprises an H-shaped steel coated concrete column, a node stiffening steel plate, reserved fastener holes and space, the prefabricated PEC longitudinal and transverse beam with the end plate comprises an H-shaped steel coated concrete beam and an end plate with reserved fastener holes, and the fastening connecting piece comprises a fastener capable of realizing unilateral connection, such as a unilateral bolt or a ring groove rivet. The utility model discloses a beam column node for prefabricating assembled PEC structure system, this connection structure is simple, convenient operation, materials are saved, the cost is lower, can realize direct on-the-spot assembly in PEC component mill's prefabrication back, shortens construction cycle, and easily installation also can not form building rubbish because of the template of demolising simultaneously, the high-efficient environmental protection of work progress.
Specific theory, the utility model has the advantages of:
(1) the utility model discloses can realize that the assembled of PEC system beam column component is connected, realize that PEC component mill prefabricated back is direct on-the-spot assembly, shorten construction cycle, easily installation.
(2) The utility model discloses a construction method of doing the connection avoids wet operation, accords with the assembled theory. Meanwhile, building rubbish can not be formed due to the dismantled template, and the construction process is efficient and environment-friendly.
(3) Fasteners such as unilateral bolts or ring groove rivets are adopted to realize unilateral connection, so that the strength meets the requirement and the connection is stable and reliable.
(4) The channel steel is used for installing the reserved space for the fastener, and meanwhile, the reduction of section strength caused by the fact that the reserved space is not filled with concrete can be compensated.
(5) The hollow area of the node connecting structure adopts longitudinal and transverse stiffening plates and can pour the concrete in the node area through the reserved holes, so that the strength of the node area is ensured, and the design requirement of 'strong nodes' is met.
(6) The longitudinal beam and the PEC column are connected in an assembled mode through welding the steel cover plate, and the PEC column is widely used.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a PEC column structure (view angle one);
FIG. 3 is a schematic view of a PEC column structure (perspective two);
FIG. 4 is a schematic view of a prefabricated PEC beam with end plates;
FIG. 5 is a schematic cross-sectional view of a PEC beam;
FIG. 6 is a schematic view of a PEC stringer configuration (view one);
fig. 7 is a schematic view of a PEC stringer configuration (view two).
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, a novel fabricated beam-column joint for a PEC system comprises a prefabricated PEC column 1, a prefabricated PEC beam assembly 2 with end plates, a prefabricated PEC longitudinal beam assembly 3 with end plates, and a single-sided bolt 4.
As shown in fig. 2 and 3, the prefabricated PEC column 1 includes an H-shaped steel concrete column 5, a single-sided bolt hole 6 on left and right flanges of the H-shaped steel, a channel steel 7 in the flange of the H-shaped steel, a transverse stiffening plate 8, a longitudinal stiffening steel plate 9, a reserved hole 10 on the transverse stiffening steel plate, a steel cover plate 11, a single-sided bolt hole 12 on the steel cover plate, and a channel steel 13 on the back of the steel cover plate.
As shown in fig. 2, the single-side bolt holes 6 are arranged on left and right flanges of the H-shaped steel, are arranged in bilateral symmetry with respect to a web plate of the H-shaped steel column, are located at the outer sides of the upper and lower flanges of the beam in height, are respectively provided with 4 bolt holes from top to bottom, and have uniform hole pitch. Channel-section steel 7 welds in flange inboard about H shaped steel, and the welding seam is on a parallel with the flange direction of post, and length covers 2 unilateral bolt pore canals, forms the open-ended space around, is unilateral bolt's installation reservation space. The two transverse stiffening steel plates 8 are welded on left and right flanges of the prefabricated PEC column H-shaped steel and are highly positioned on upper and lower flanges of the PEC beam. A hole 10 is reserved on each of the left and right sides of the transverse stiffening steel plate to reserve a channel for pouring concrete in a node area. The longitudinal stiffening steel plate 9 is welded between the two transverse stiffening steel plates and is positioned at the midpoint of the transverse stiffening steel plates.
As shown in fig. 3, the steel cover plate 11 is welded between left and right flanges of the H-beam of the prefabricated PEC column, and the length of the steel cover plate can include the whole joint area, and meanwhile, a single-side bolt hole 12 is reserved in the steel cover plate. And at the back of the steel cover plate, a section of channel steel is welded outside the unilateral bolt hole channel to cover the unilateral bolt hole channel, so that a closed space is formed, and the insertion position of the unilateral bolt is reserved.
As shown in fig. 4, the end-plate prefabricated PEC beam assembly 2 comprises prefabricated PEC beams 15, beam end plates 14, and stiffeners 16. The prefabricated PEC beam 2 takes a standard cross-sectional form including H-section steel, concrete, longitudinal bars, and stirrups. And a third single-side bolt pore passage 17 is arranged on the beam end plate 14 and corresponds to the single-side bolt pore passage 6. The beam end plates and the prefabricated PEC beams are welded and reinforced and connected by the stiffening ribs 16, and the stiffening ribs are symmetrically arranged along the beam flange web plates at even intervals. The precast PEC beam cross-section is shown in fig. 5. The prefabricated PEC beam assembly 2 with the end plates is connected with the prefabricated PEC column 1 through a single-side bolt 4.
As shown in fig. 6, the end-plate prefabricated PEC stringer assembly 3 includes prefabricated PEC stringers 18, stringer end plates 19, and stiffeners 16. The prefabricated PEC stringers 3 take a standard cross-sectional form including H-section steel, concrete, longitudinal ribs, stirrups. And four unilateral bolt holes 20 corresponding to the unilateral bolt holes 12 are arranged on the longitudinal beam end plate 19. The beam end plates and the prefabricated PEC beams are welded and reinforced and connected by the stiffening ribs 16, and the stiffening ribs are symmetrically arranged along the beam flange web plates at even intervals. As shown in fig. 7, the second channel steel 13 is welded to the back of the steel cover plate 11, and the prefabricated PEC longitudinal beam assembly 3 with the end plate is connected with the steel cover plate 11 through the single-side bolt 4.
Simultaneously the embodiment of the utility model provides a preparation method for PEC system's novel assembled beam column node specifically goes on according to following step:
and S1, welding two transverse stiffening steel plates 8 and a longitudinal stiffening steel plate 9 in the left flange and the right flange of the H-shaped steel 5 according to a drawing, and reserving holes 10 in the two transverse stiffening steel plates.
S2, reserving single-side bolt holes 6 on the left flange and the right flange of the H-shaped steel, and welding a section of channel steel 7 outside the single-side bolt holes on the inner sides of the left flange and the right flange of the H-shaped steel, wherein the length of the channel steel is at least larger than the sum of the diameter of the single-side bolt holes and the gap of the single-side bolt holes.
S3, selecting a steel cover plate 11 with the length at least larger than that of the node area according to a drawing, and reserving a single-side bolt hole 12 on the steel cover plate. And a section of second channel steel 13 is welded on the back of the steel cover plate, and the length of the second channel steel is at least larger than the sum of the diameter of the hole channel of the unilateral bolt and the gap of the hole channel of the unilateral bolt. And after the welding is finished, welding the steel cover plate between the left flange and the right flange of the H-shaped steel.
And S4, filling foam at the two ends of the channel steels 7 and 13 to form closed spaces. And (5) pouring concrete, wherein the concrete can fill the node area through the reserved holes 10, and the PEC column is prefabricated in a factory.
And S5, reserving single-side bolt pore channels III 17 and 20 on the PEC longitudinal and transverse beam end plates according to the drawing. PEC cross beams 15, 18 are welded to PEC cross beam end plates 14, 19 and are reinforced with stiffeners 16. And (3) binding reinforcing steel bars, pouring concrete, and prefabricating the prefabricated PEC longitudinal and transverse beams 2 and 3 with the end plates.
S6, transporting the prefabricated PEC column 1 and the prefabricated PEC longitudinal and transverse beam assembly 2 and 3 with the end plates to the site.
And S7, assembling the PEC system beam column on site by using the single-side bolt 4.
Therefore, the embodiment of the utility model provides a novel assembled beam column node for PEC system is applicable to the dry construction scheme of the novel assembled beam column node structure of PEC system, is applicable to multiple beam column butt joint structure. In general, the utility model relates to a novel assembled beam column node for PEC system, including prefabricated PEC post, the prefabricated PEC longitudinal and transverse beam of taking the end plate, fastening connection spare, prefabricated PEC post includes H shaped steel cladding concrete post, node stiffening steel sheet, reservation fastener pore and space, the prefabricated PEC longitudinal and transverse beam that has the end plate includes H shaped steel cladding concrete beam, the end plate of reservation fastener pore, fastening connection spare includes fastener that unilateral bolt or annular rivet etc. can realize unilateral connection; the utility model has the advantages of being simple in structure and convenient in operation, the material is saved, the cost is lower, can realize direct on-the-spot assembly in PEC component mill's prefabricated back, shortens construction cycle, and easily installation also can not form building rubbish because of the template of demolising simultaneously, the high-efficient environmental protection of work progress.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A beam-column node for a prefabricated assembled PEC structural system, comprising a prefabricated PEC column (1), characterized in that: a prefabricated PEC cross beam assembly (2) with an end plate and a prefabricated PEC longitudinal beam assembly (3) with an end plate are arranged on the prefabricated PEC column (1);
the prefabricated PEC column (1) comprises an H-shaped steel concrete column (5), unilateral bolt pore canals (6) are arranged on the H-shaped steel concrete column (5), the unilateral bolt pore canals (6) are arranged on left and right flanges of the H-shaped steel concrete column (5) and are arranged in a bilateral symmetry mode relative to a web plate of the H-shaped steel concrete column (5), and the unilateral bolt pore canals (6) are located on the outer sides of the upper flange and the lower flange of the beam in height;
still set up channel-section steel (7) on H shaped steel concrete column (5), channel-section steel (7) weld in flange inboard about H shaped steel concrete column (5), the welding seam is on a parallel with the flange direction of post.
2. The beam-column node for a prefabricated assembled PEC structural system of claim 1, wherein: 4 bolt pore canals are respectively arranged on the upper part and the lower part of the unilateral bolt pore canal (6), and the pore canal intervals are uniform.
3. The beam-column node for a prefabricated assembled PEC structural system of claim 2, wherein: the length of channel steel (7) covers 2 unilateral bolt pore canals, forms the open-ended space around, for the installation reservation space of unilateral bolt.
4. The beam-column node for a prefabricated assembled PEC structural system of claim 3, wherein: the H-shaped steel concrete column (5) is also provided with a transverse stiffening steel plate (8);
two transverse stiffening steel plates (8) are welded on left and right flanges of the H-shaped steel concrete column (5) and are positioned at the upper and lower flanges of the PEC beam in height; a hole (10) is reserved on the left and the right of the transverse stiffening steel plate (8) respectively, and a channel is reserved for pouring concrete in a node area.
5. The beam-column node for a prefabricated assembled PEC structural system of claim 4, wherein: the steel plate structure is characterized by further comprising a longitudinal stiffening steel plate (9), wherein the longitudinal stiffening steel plate (9) is welded between the two transverse stiffening steel plates (8) and is positioned at the midpoint of each transverse stiffening steel plate (8).
6. The beam-column node for a prefabricated assembled PEC structural system of claim 1, wherein: the steel cover plate (11) is welded between left and right flanges of the H-shaped steel concrete column (5), the length of the steel cover plate (11) can include the whole node area, and meanwhile, a second unilateral bolt hole (12) is reserved in the steel cover plate (11);
a section of channel steel is welded outside a second unilateral bolt hole channel (12) on the back of the steel cover plate (11) in the same way, the unilateral bolt hole channel is covered, a closed space is formed, and the insertion position of the unilateral bolt is reserved;
the second channel steel (13) is welded to the back of the steel cover plate (11), and the prefabricated PEC longitudinal beam assembly (3) with the end plate is connected with the steel cover plate (11) through the single-side bolt (4).
7. The beam-column node for a prefabricated assembled PEC structural system of claim 1, wherein: the prefabricated PEC beam assembly (2) with the end plates adopts a standard cross section form and comprises H-shaped steel, concrete, longitudinal bars and stirrups;
the method specifically comprises the steps of prefabricating a PEC cross beam (15), cross beam end plates (14) and stiffening ribs (16);
wherein, a single-side bolt pore canal III (17) is arranged on the beam end plate (14) and corresponds to the single-side bolt pore canal (6);
the beam end plates (14) and the prefabricated PEC beams (15) are welded and connected in a reinforcing mode through the stiffening ribs (16), and the stiffening ribs (16) are symmetrically arranged along the flange webs of the beams and are uniform in spacing.
8. The beam-column node for a prefabricated assembled PEC structural system of claim 1, wherein: the prefabricated PEC cross beam (1) with the end plate is connected with the prefabricated PEC column (1) through a single-side bolt (4).
9. The beam-column node for a prefabricated assembled PEC structural system of claim 1, wherein: the prefabricated PEC longitudinal beam assembly (3) with the end plates adopts a standard cross-section form and comprises H-shaped steel, concrete, longitudinal bars and stirrups;
the prefabricated PEC longitudinal beam assembly (3) with the end plates specifically comprises prefabricated PEC longitudinal beams (18), longitudinal beam end plates (19) and stiffening ribs (16);
wherein the content of the first and second substances,
a fourth unilateral bolt pore passage (20) is arranged on the longitudinal beam end plate (19) and corresponds to the second unilateral bolt pore passage (12); the beam end plates (14) and the prefabricated PEC longitudinal beam assembly (3) with the end plates are welded and connected in a reinforcing mode through the stiffening ribs (16), and the stiffening ribs (16) are symmetrically arranged along the beam flange web plates and are uniform in spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022841932.2U CN214696131U (en) | 2020-11-30 | 2020-11-30 | Beam-column joint for prefabricated assembled PEC structural system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022841932.2U CN214696131U (en) | 2020-11-30 | 2020-11-30 | Beam-column joint for prefabricated assembled PEC structural system |
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| CN214696131U true CN214696131U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022841932.2U Active CN214696131U (en) | 2020-11-30 | 2020-11-30 | Beam-column joint for prefabricated assembled PEC structural system |
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| Country | Link |
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| CN (1) | CN214696131U (en) |
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