CN211590677U - Prefabricated steel truss concrete integrated configuration assembled superposed beam - Google Patents
Prefabricated steel truss concrete integrated configuration assembled superposed beam Download PDFInfo
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- CN211590677U CN211590677U CN201922320135.7U CN201922320135U CN211590677U CN 211590677 U CN211590677 U CN 211590677U CN 201922320135 U CN201922320135 U CN 201922320135U CN 211590677 U CN211590677 U CN 211590677U
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Abstract
The utility model discloses a prefabricated steel truss concrete integrated configuration assembled superposed beam relates to the construction field. An assembled composite beam of a prefabricated steel truss concrete composite structure comprises an assembled steel truss and an anti-cracking reinforcement cage. The assembled steel truss comprises a steel skeleton upper beam, a steel skeleton lower beam I and a steel skeleton lower beam II. The ends of the steel skeleton upper beam and the steel skeleton lower beam I are connected into a whole through a connecting plate I. A plurality of steel skeleton supporting crosses and a plurality of connecting plates II are connected between the steel skeleton upper beam and the steel skeleton lower beam I. The assembled steel truss is installed in the anti-crack reinforcement cage, and the assembled steel truss and the anti-crack reinforcement cage form an integrated structure through concrete. The utility model discloses the pollution and the construction cycle of reducible job site have reduced time limit for a project and the quality influence that outdoor weather becomes the law and cause to can realize retrieving through multiple construction technology and recycle.
Description
Technical Field
The utility model relates to a construction field.
Background
In the past decades, the building industry in China is developed vigorously, the living environment of people is improved, and the growth of national economy is promoted. In the face of the continuous rise of labor and labor prices in China and the gradual improvement of consciousness of people on energy conservation and environmental protection requirements, the international competitive pressure of the building industry is higher and higher. In order to improve the core competitiveness, a new industry mode, namely prefabricated assembled buildings, is produced.
Prefabricated components are the basic material of prefabricated buildings, including all prefabricated concrete components, such as beams, slabs, walls, columns, balconies, stairs, rainsheds, etc.
The beam is one of very important components of a building, the existing prefabricated assembly type superposed beam is a prefabricated reinforced concrete superposed beam, and the nodes caused by the mutual penetration of the steel bars of the superposed beam in the building are very complicated, so that the influence on the floor height is great.
Therefore, it is necessary to develop a fabricated composite beam capable of improving the overall strength and seismic capacity of a building.
Disclosure of Invention
The utility model aims at providing a prefabricated steel truss concrete integrated configuration assembled superposed beam.
The technical scheme who adopts for realizing the utility model aims at so, a prefabricated steel truss concrete integrated configuration assembled composite beam, including assembled steel truss and anti steel reinforcement cage that splits.
The assembled steel truss comprises a steel skeleton upper beam, a steel skeleton lower beam I, a steel skeleton lower beam II and a plurality of steel skeleton supporting crosses.
Steel skeleton entablature, steel skeleton bottom end rail I and steel skeleton bottom end rail II are parallel to each other, and steel skeleton bottom end rail I is located the steel skeleton entablature under, and the lower surface of steel skeleton bottom end rail I is connected with steel skeleton bottom end rail II.
The ends of the steel skeleton upper beam, the steel skeleton lower beam I and the steel skeleton lower beam II are connected into a whole through the connecting plate I.
A plurality of steel skeleton supporting crosses are connected between the steel skeleton upper beam and the steel skeleton lower beam I, two end points of each steel skeleton supporting cross are on the same horizontal plane, and the other two end points are on the same horizontal plane. Two end points at the upper end of each steel skeleton support cross are connected with the steel skeleton upper cross beam, two end points at the lower end of each steel skeleton support cross are connected with the steel skeleton lower cross beam I, and the intersection of the steel skeleton support cross is reinforced through a steel skeleton support connecting plate.
A plurality of connecting plates II are connected between the steel skeleton upper beam and the steel skeleton lower beam I, two ends of each connecting plate II are respectively and vertically connected to the steel skeleton upper beam and the steel skeleton lower beam I, and the connecting plates II are arranged at equal intervals.
The assembled steel truss is arranged in the anti-cracking reinforcement cage, the assembled steel truss and the anti-cracking reinforcement cage form an integrated structure through concrete pouring, and a concrete protective layer exists between the anti-cracking reinforcement cage and the outer surface of the concrete.
Further, the steel skeleton entablature is notch channel-section steel down, and the steel skeleton entablature includes web I and two edges of a wing I, is provided with a plurality of recesses I on the web I, and a plurality of recesses I are arranged along the length direction of web I equidistant. I undercut of recess, recess I is circular recess or U type recess.
Steel skeleton bottom end rail I is notch channel-section steel up, and steel skeleton bottom end rail I includes web II and two edges of a wing II, is provided with a plurality of recesses II on the web II, and the equidistant arrangement of length direction of web II is followed to a plurality of recesses II. The groove II is sunken upwards and is a circular groove or a U-shaped groove.
Steel skeleton bottom end rail II is notch channel-section steel up, and steel skeleton bottom end rail II includes web III and two edges of a wing III, is provided with a plurality of recesses III on the web III, and a plurality of recesses III are arranged along the equidistance of the length direction of web III. The groove III is sunken upwards, and the groove III is a circular groove or a U-shaped groove. The upper edges of the two flanges III are welded to the lower surface of the web II.
The steel skeleton support cross comprises two support legs I at the upper end and two support legs II at the lower end, the support legs I and the support legs II are channel steel, the support legs I comprise web plates IV and two flange plates IV, a plurality of grooves IV are formed in the web plates IV, and the grooves IV are arranged at equal intervals along the length direction of the web plates IV. The groove IV is sunken towards the direction of the notch of the channel steel, and the groove IV is a circular groove or a U-shaped groove. And a notch is arranged at the upper end of the web IV, and the outline of the notch is matched with the outline of the groove I.
The supporting leg II comprises a web V and two flanges V, a plurality of grooves V are formed in the web V, and the grooves V are arranged at equal intervals along the length direction of the web V. The groove V is sunken towards the direction of the groove opening of the channel steel, and the groove V is a circular groove or a U-shaped groove. And a notch is formed in the lower end of the web V, and the outline of the notch is matched with the outline of the groove II.
When the steel skeleton supporting cross is connected with the steel skeleton upper cross beam, the notch at the upper end of the web IV is embedded with the outer surface of the groove I, and the outer surfaces of the two flanges IV are respectively attached to and connected with the inner surfaces of the two flanges I.
When the steel skeleton supporting cross is connected with the steel skeleton lower beam I, the notch at the lower end of the web V is embedded in the outer surface of the groove II, and the outer surfaces of the two flanges V are respectively attached to and connected with the inner surfaces of the two flanges II.
Furthermore, the connection mode of the flange IV and the flange I is bolting or welding. And the flange V and the flange II are connected in a bolted connection or a welded connection mode.
The upper end of the connecting plate II is bolted or welded to the outer surface of the flange I, and the lower end of the connecting plate II is bolted or welded to the outer surface of the flange II.
The upper end of the connecting plate I is connected to the outer surface of the flange I, the lower end of the connecting plate I is connected to the outer surfaces of the flange II and the flange III, and the connecting mode is bolting or welding.
Furthermore, a plurality of stiffening plates are arranged on the connecting plate I and the connecting plate II.
Furthermore, a plurality of through holes penetrate through two side walls of the prefabricated steel truss concrete combined structure fabricated composite beam, and the through holes are not intersected with the fabricated steel truss.
Furthermore, the upper end and the lower end of the anti-cracking reinforcement cage are both reserved with a picking-out reinforcement, and the picking-out reinforcement extends out of the concrete protective layer. The anti-cracking reinforcement cage adopts hot-rolled plain steel bars, hot-rolled ribbed steel bars or cold-rolled ribbed steel bars. The anti-cracking reinforcement cage is encrypted at the connecting plate I and the connecting plate II.
Further, the concrete for pouring the assembled steel truss and the anti-cracking reinforcement cage is high-strength concrete, common concrete, foam concrete, aerated concrete or slag concrete.
The technical effect of the utility model is undoubtedly, the utility model discloses effectually combine steel truss, reinforcing bar and concrete to form unified atress component, make into modular coincide roof beam, adopt the mill to make, the construction is realized to the mode of scene concatenation. The utility model discloses the pollution and the construction cycle of the reducible job site of application of technique have reduced time limit for a project and the quality influence that outdoor weather becomes the law and cause to can realize retrieving through multiple construction technology and recycle.
Drawings
FIG. 1 is a schematic view of a prefabricated steel truss concrete composite structure assembled composite beam;
FIG. 2 is a schematic view of an assembled steel truss;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 32 3; 3
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is a schematic view of the steel frame upper beam;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 5;
fig. 7 is a cross-sectional view taken along line D-D of fig. 5.
In the figure: the steel truss assembling type steel truss structure comprises an assembling type steel truss 1, a steel skeleton upper beam 101, a web I1011, a groove I10111, a flange I1012, a steel skeleton lower beam I102, a web II 1021, a groove II 10211, a flange II 1022, a steel skeleton lower beam II 103, a web III 1031, a groove III 10311, a flange III 1032, a steel skeleton supporting cross 104, a web IV 1041, a flange IV 1042, a web V1043, a flange V1044, a steel skeleton supporting connecting plate 105, a connecting plate I106, a connecting plate II 107 and a through hole 4.
Detailed Description
The present invention will be further described with reference to the following examples, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and modifications can be made without departing from the technical spirit of the invention and according to the common technical knowledge and conventional means in the field, and all shall be included in the scope of the invention.
Example 1:
the embodiment discloses a prefabricated steel truss concrete composite structure assembled composite beam, which comprises an assembled steel truss 1 and an anti-cracking reinforcement cage.
Referring to fig. 2, the assembled steel truss 1 includes a steel skeleton upper beam 101, a steel skeleton lower beam i 102, a steel skeleton lower beam ii 103, and a plurality of steel skeleton support crosses 104.
The steel skeleton upper beam 101, the steel skeleton lower beam I102 and the steel skeleton lower beam II 103 are parallel to each other, the steel skeleton lower beam I102 is located under the steel skeleton upper beam 101, and the lower surface of the steel skeleton lower beam I102 is connected with the steel skeleton lower beam II 103.
Referring to fig. 5 or 6, the steel skeleton upper beam 101 is a channel steel with a downward notch, the steel skeleton upper beam 101 includes a web i 1011 and two flanges i 1012, a plurality of grooves i 10111 are arranged on the web i 1011, and the grooves i 10111 are arranged at equal intervals along the length direction of the web i 1011. I10111 undercut of recess, I10111 of recess are circular recess or U type recess.
The steel skeleton lower beam I102 is a channel steel with an upward notch, the steel skeleton lower beam I102 comprises a web II 1021 and two flanges II 1022, a plurality of grooves II 10211 are formed in the web II 1021, and the grooves II 10211 are arranged at equal intervals along the length direction of the web II 1021. The groove II 10211 is upwards sunken, and the groove II 10211 is a circular groove or a U-shaped groove.
The steel skeleton lower beam II 103 is the channel-section steel that the notch faces up, and steel skeleton lower beam II 103 includes web III 1031 and two edges of a wing III 1032, is provided with a plurality of recesses III 10311 on the web III 1031, and the equidistant arrangement of the length direction of a plurality of recesses III 10311 along web III 1031. The groove III 10311 is upwards sunken, and the groove III 10311 is a circular groove or a U-shaped groove. Referring to fig. 4, the upper edges of the two flanges iii 1032 are welded to the lower surface of the web ii 1021.
The ends of the steel skeleton upper beam 101, the steel skeleton lower beam I102 and the steel skeleton lower beam II 103 are connected into a whole through a connecting plate I106.
Referring to fig. 2, a plurality of steel skeleton support crosses 104 are connected between the steel skeleton upper beam 101 and the steel skeleton lower beam i 102, two end points of the steel skeleton support crosses 104 are on the same horizontal plane, and the other two end points are on the same horizontal plane. Two ends of the upper end of each steel skeleton support cross 104 are connected with the steel skeleton upper cross beam 101, two ends of the lower end of each steel skeleton support cross are connected with the steel skeleton lower cross beam I102, and the intersection of the steel skeleton support cross 104 is reinforced through a steel skeleton support connecting plate 105.
The steel skeleton support cross 104 comprises two support legs I at the upper end and two support legs II at the lower end, the support legs I and the support legs II are channel steel, the support legs I comprise webs IV 1041 and two flanges IV 1042, a plurality of grooves IV are formed in the webs IV 1041, and the grooves IV are arranged at equal intervals along the length direction of the webs IV 1041. The groove IV is sunken towards the direction of the notch of the channel steel, and the groove IV is a circular groove or a U-shaped groove. Referring to fig. 3, the upper end of the web iv 1041 is provided with a notch, and the contour of the notch is matched with the outer contour of the groove i 10111.
Referring to fig. 3, when the steel framework support cross 104 is connected with the steel framework upper beam 101, the notch at the upper end of the web iv 1041 is embedded in the outer surface of the groove i 10111, and the outer surfaces of the two flanges iv 1042 are respectively attached to and connected with the inner surfaces of the two flanges i 1012. In the embodiment, the connection mode of the flange iv 1042 and the flange i 1012 is bolting, referring to fig. 7, a plurality of bolt holes are arranged on the flange i 1012, bolt holes are arranged at the upper end of the flange iv 1042, and the upper end of the flange iv 1042 is connected to the flange i 1012 through bolts.
The supporting leg II comprises a web V1043 and two flanges V1044, a plurality of grooves V are formed in the web V1043, and the grooves V are arranged at equal intervals along the length direction of the web V1043. The groove V is sunken towards the direction of the groove opening of the channel steel, and the groove V is a circular groove or a U-shaped groove. Referring to fig. 4, the lower end of the web v 1043 is provided with a notch whose contour matches the outer contour of the groove ii 10211.
Referring to fig. 4, when the steel framework support cross 104 is connected with the steel framework lower beam i 102, the notch at the lower end of the web v 1043 is embedded in the outer surface of the groove ii 10211, and the outer surfaces of the two flanges v 1044 are respectively attached to and connected with the inner surfaces of the two flanges ii 1022. In this embodiment, the connection mode of the flange v 1044 and the flange ii 1022 is bolting, a plurality of bolt holes are arranged on the flange ii 1022, bolt holes are arranged at the lower end of the flange v 1044, and the lower end of the flange v 1044 is connected to the flange ii 1022 through bolts.
A plurality of connecting plates II 107 are connected between the steel skeleton upper beam 101 and the steel skeleton lower beam I102, two ends of each connecting plate II 107 are respectively and vertically connected to the steel skeleton upper beam 101 and the steel skeleton lower beam I102, and the connecting plates II 107 are arranged at equal intervals. The upper end bolt of connecting plate II 107 is to the surface of I1012 on the flange, the lower extreme bolt is or welds the surface to II 1022 on the flange, the upper and lower end of connecting plate II (107) all is provided with bolt hole and the sleeve pipe that supplies the bolt installation, the sleeve pipe setting is on II (107) of connecting plate deviates from the face on I (1012) on the flange, bolt hole and sleeve pipe link up, the bolt passes the sleeve pipe of connecting plate II (107) upper end, the bolt hole on II (107) upper end of connecting plate and the bolt hole on I1012 on the flange, the bolt passes the sleeve pipe of connecting plate II (107) lower extreme, the bolt hole of connecting plate II (107) lower extreme and the bolt hole on II.
The upper end of the connecting plate I106 is connected to the outer surface of the flange I1012, and the lower end is connected to the outer surfaces of the flange II 1022 and the flange III 1032 in a bolting mode. The upper end of connecting plate I106 is provided with bolt hole and the sleeve pipe that supplies the bolt installation, and the lower extreme is provided with two bolt holes and two sleeve pipes that supply the bolt installation, and the sleeve pipe setting deviates from on the face of edge of a wing I (1012) at connecting plate I106, and bolt hole and sleeve pipe link up, and the both ends of edge of a wing III 1032 are provided with the bolt hole. Bolts penetrate through a sleeve at the upper end of the connecting plate I106, a bolt hole at the upper end of the connecting plate I106 and a bolt hole in the flange I1012, bolts penetrate through a sleeve at the lower end of the connecting plate I106, a bolt hole at the lower end of the connecting plate I106 and a bolt hole in the flange II 1022, bolts penetrate through a sleeve at the lower end of the connecting plate I106, a bolt hole at the lower end of the connecting plate I106 and a bolt hole in the flange III 1032. And a plurality of stiffening plates are arranged on the connecting plate I106 and the connecting plate II 107.
The assembled steel truss 1 is arranged in the anti-crack reinforcement cage, the assembled steel truss 1 and the anti-crack reinforcement cage form an integrated structure through concrete pouring, and a concrete protective layer exists between the anti-crack reinforcement cage and the outer surface of the concrete. The concrete for pouring the assembled steel truss 1 and the anti-cracking reinforcement cage is high-strength concrete, common concrete, foam concrete, aerated concrete or slag concrete.
And the upper end and the lower end of the anti-cracking reinforcement cage are both reserved with a picking-out reinforcement, and the picking-out reinforcement extends out of the concrete protective layer. The anti-cracking reinforcement cage adopts hot-rolled plain steel bars, hot-rolled ribbed steel bars or cold-rolled ribbed steel bars. The anti-cracking reinforcement cage is subjected to encryption treatment at a connecting plate I106 and a connecting plate II 107.
Referring to fig. 1, a plurality of through holes 4 penetrate through two side walls of the prefabricated steel truss concrete combined structure assembled superposed beam, and the plurality of through holes 4 are staggered with a steel skeleton of the assembled steel truss 1.
The production process of the composite beam of the embodiment comprises the following steps:
1) the steel frame upper beam 101, the steel frame lower beam I102, the steel frame lower beam II 103 and the steel frame support cross 104 are machined by steel belts.
2) And the steel skeleton upper beam 101, the steel skeleton lower beam I102, the steel skeleton lower beam II 103, the steel skeleton support cross 104, the steel skeleton support connecting plate 105, the connecting plate I106 and the connecting plate II 107 are processed into the assembled steel truss 1 through bolting or welding.
3) The crack-resistant reinforcement cage is installed on the periphery of the fabricated steel truss 1. The anti-cracking reinforcement cage is formed by splicing a plurality of reinforcement meshes, and the reinforcement meshes are reinforcement meshes bound on site or finished reinforcement meshes.
4) And (3) putting the anti-crack reinforcement cage and the assembled steel truss 1 into a truss girder steel mold box, prefabricating and pouring concrete, starting a vibrating table to enable the concrete to reach compactness, and performing treatment on an exposed surface.
5) And (3) performing steam curing, demoulding, numbering, curing and detection on the prefabricated steel truss concrete composite structure assembled superposed beam formed by the steps, and waiting for delivery.
Example 2:
the embodiment discloses a prefabricated steel truss concrete composite structure assembled composite beam, which comprises an assembled steel truss 1 and an anti-cracking reinforcement cage.
Referring to fig. 2, the assembled steel truss 1 includes a steel skeleton upper beam 101, a steel skeleton lower beam i 102, a steel skeleton lower beam ii 103, and a plurality of steel skeleton support crosses 104.
The steel skeleton upper beam 101, the steel skeleton lower beam I102 and the steel skeleton lower beam II 103 are parallel to each other, the steel skeleton lower beam I102 is located under the steel skeleton upper beam 101, and the lower surface of the steel skeleton lower beam I102 is connected with the steel skeleton lower beam II 103.
The ends of the steel skeleton upper beam 101, the steel skeleton lower beam I102 and the steel skeleton lower beam II 103 are connected into a whole through a connecting plate I106.
Referring to fig. 2, a plurality of steel skeleton support crosses 104 are connected between the steel skeleton upper beam 101 and the steel skeleton lower beam i 102, two end points of the steel skeleton support crosses 104 are on the same horizontal plane, and the other two end points are on the same horizontal plane. Two ends of the upper end of each steel skeleton support cross 104 are connected with the steel skeleton upper cross beam 101, two ends of the lower end of each steel skeleton support cross are connected with the steel skeleton lower cross beam I102, and the intersection of the steel skeleton support cross 104 is reinforced through a steel skeleton support connecting plate 105.
A plurality of connecting plates II 107 are connected between the steel skeleton upper beam 101 and the steel skeleton lower beam I102, two ends of each connecting plate II 107 are respectively and vertically connected to the steel skeleton upper beam 101 and the steel skeleton lower beam I102, and the connecting plates II 107 are arranged at equal intervals.
The assembled steel truss 1 is arranged in the anti-crack reinforcement cage, the assembled steel truss 1 and the anti-crack reinforcement cage form an integrated structure through concrete pouring, and a concrete protective layer exists between the anti-crack reinforcement cage and the outer surface of the concrete.
Example 3:
the main structure of this embodiment is the same as embodiment 2, and further, steel skeleton entablature 101 is the channel-section steel that the notch faces down, refers to fig. 3, 5 or 6, and steel skeleton entablature 101 includes I1011 on the web and two I1012 on the edge of a wing, is provided with a plurality of I10111 on the I1011 on the web, and the equidistant arrangement of the length direction of I10111 edge web I1011 in a plurality of recesses. See I10111 undercut of said recess, I10111 of recess is circular recess or U type recess.
Referring to fig. 4, the steel skeleton lower beam i 102 is a channel steel with an upward notch, the steel skeleton lower beam i 102 comprises a web ii 1021 and two flanges ii 1022, a plurality of grooves ii 10211 are arranged on the web ii 1021, and the grooves ii 10211 are arranged at equal intervals along the length direction of the web ii 1021. The groove II 10211 is upwards sunken, and the groove II 10211 is a circular groove or a U-shaped groove.
Referring to fig. 4, the steel skeleton lower beam ii 103 is a channel steel with an upward notch, the steel skeleton lower beam ii 103 comprises a web iii 1031 and two flanges iii 1032, a plurality of grooves iii 10311 are arranged on the web iii 1031, and the grooves iii 10311 are arranged at equal intervals along the length direction of the web iii 1031. The groove III 10311 is upwards sunken, and the groove III 10311 is a circular groove or a U-shaped groove. The upper edges of the two flanges III 1032 are welded to the lower surface of the web II 1021.
The steel skeleton support cross 104 comprises two support legs I at the upper end and two support legs II at the lower end, the support legs I and the support legs II are channel steel, the support legs I comprise webs IV 1041 and two flanges IV 1042, a plurality of grooves IV are formed in the webs IV 1041, and the grooves IV are arranged at equal intervals along the length direction of the webs IV 1041. Referring to fig. 3, the groove iv is recessed toward the notch of the channel steel, and the groove iv is a circular groove or a U-shaped groove. The upper end of the web IV 1041 is provided with a notch, and the outline of the notch is matched with the outline of the groove I10111.
The supporting leg II comprises a web V1043 and two flanges V1044, a plurality of grooves V are formed in the web V1043, and the grooves V are arranged at equal intervals along the length direction of the web V1043. The groove V is sunken towards the direction of the groove opening of the channel steel, and the groove V is a circular groove or a U-shaped groove. Referring to fig. 4, the lower end of the web v 1043 is provided with a notch whose contour matches the outer contour of the groove ii 10211.
Referring to fig. 3, when the steel framework support cross 104 is connected with the steel framework upper beam 101, the notch at the upper end of the web iv 1041 is embedded in the outer surface of the groove i 10111, and the outer surfaces of the two flanges iv 1042 are respectively attached to and connected with the inner surfaces of the two flanges i 1012.
Referring to fig. 4, when the steel framework support cross 104 is connected with the steel framework lower beam i 102, the notch at the lower end of the web v 1043 is embedded in the outer surface of the groove ii 10211, and the outer surfaces of the two flanges v 1044 are respectively attached to and connected with the inner surfaces of the two flanges ii 1022.
Example 4:
the main structure of this embodiment is the same as that of embodiment 3, and further, the connection mode of the flange iv 1042 and the flange i 1012 is welding. The flange V1044 and the flange II 1022 are connected in a welding mode.
The upper end of the connecting plate II 107 is welded to the outer surface of the flange I1012, and the lower end of the connecting plate II is welded to the outer surface of the flange II 1022.
The upper end of the connecting plate I106 is connected to the outer surface of the flange I1012, and the lower end of the connecting plate I is connected to the outer surfaces of the flange II 1022 and the flange III 1032 in a welding mode.
Example 5:
the main structure of this embodiment is the same as that of embodiment 4, and further, a plurality of stiffening plates are arranged on both the connecting plate i 106 and the connecting plate ii 107.
Example 6:
the main structure of this embodiment is the same as that of embodiment 5, and further, referring to fig. 1, the prefabricated steel truss concrete composite structure assembled composite beam includes a plurality of through holes 4, the plurality of through holes 4 penetrate through two side walls of the prefabricated steel truss concrete composite structure assembled composite beam, and the plurality of through holes 4 do not intersect with the assembled steel truss 1.
Example 7:
the main structure of this embodiment is the same as that of embodiment 6, and further, the upper and lower ends of the anti-crack reinforcement cage are both reserved with a picked-out reinforcement, and the picked-out reinforcement extends out of the concrete protective layer. The anti-cracking reinforcement cage adopts hot-rolled plain steel bars, hot-rolled ribbed steel bars or cold-rolled ribbed steel bars. The anti-cracking reinforcement cage is subjected to encryption treatment at a connecting plate I106 and a connecting plate II 107.
Example 8:
the main structure of this embodiment is the same as that of embodiment 7, and further, the concrete for pouring the fabricated steel truss 1 and the anti-crack reinforcing mesh 3 is ordinary concrete.
Claims (7)
1. The utility model provides a prefabricated steel truss concrete integrated configuration assembled superposed beam which characterized in that: the steel truss comprises an assembly type steel truss (1) and an anti-cracking reinforcement cage;
the assembly type steel truss (1) comprises a steel skeleton upper beam (101), a steel skeleton lower beam I (102), a steel skeleton lower beam II (103) and a plurality of steel skeleton supporting crosses (104);
the steel skeleton upper beam (101), the steel skeleton lower beam I (102) and the steel skeleton lower beam II (103) are parallel to each other, the steel skeleton lower beam I (102) is located right below the steel skeleton upper beam (101), and the lower surface of the steel skeleton lower beam I (102) is connected with the steel skeleton lower beam II (103);
the ends of the steel skeleton upper beam (101), the steel skeleton lower beam I (102) and the steel skeleton lower beam II (103) are connected into a whole through a connecting plate I (106);
a plurality of steel skeleton supporting crosses (104) are connected between the steel skeleton upper beam (101) and the steel skeleton lower beam I (102), two end points of the steel skeleton supporting crosses (104) are on the same horizontal plane, and the other two end points are on the same horizontal plane; two end points at the upper end of each steel skeleton support cross (104) are connected with an upper steel skeleton beam (101), two end points at the lower end of each steel skeleton support cross are connected with a lower steel skeleton beam I (102), and the intersection of the steel skeleton support cross (104) is reinforced by a steel skeleton support connecting plate (105);
a plurality of connecting plates II (107) are connected between the steel skeleton upper beam (101) and the steel skeleton lower beam I (102), two ends of each connecting plate II (107) are respectively and vertically connected to the steel skeleton upper beam (101) and the steel skeleton lower beam I (102), and the connecting plates II (107) are arranged at equal intervals;
the assembled steel truss (1) is arranged in the anti-crack reinforcement cage, the assembled steel truss (1) and the anti-crack reinforcement cage form an integrated structure through concrete pouring, and a concrete protective layer exists between the anti-crack reinforcement cage and the outer surface of the concrete.
2. The prefabricated assembled composite beam with a steel truss concrete composite structure as claimed in claim 1, wherein: the steel skeleton upper beam (101) is a channel steel with a downward notch, the steel skeleton upper beam (101) comprises a web I (1011) and two flanges I (1012), a plurality of grooves I (10111) are formed in the web I (1011), and the grooves I (10111) are arranged at equal intervals along the length direction of the web I (1011); the groove I (10111) is sunken downwards, and the groove I (10111) is a circular groove or a U-shaped groove;
the steel skeleton lower cross beam I (102) is a channel steel with an upward notch, the steel skeleton lower cross beam I (102) comprises a web II (1021) and two flanges II (1022), a plurality of grooves II (10211) are formed in the web II (1021), and the grooves II (10211) are arranged at equal intervals along the length direction of the web II (1021); the groove II (10211) is sunken upwards, and the groove II (10211) is a circular groove or a U-shaped groove;
the steel skeleton lower beam II (103) is a channel steel with an upward notch, the steel skeleton lower beam II (103) comprises a web III (1031) and two flanges III (1032), a plurality of grooves III (10311) are formed in the web III (1031), and the grooves III (10311) are arranged at equal intervals along the length direction of the web III (1031); the groove III (10311) is upwards sunken, and the groove III (10311) is a circular groove or a U-shaped groove; the upper edges of the two flanges III (1032) are welded to the lower surface of the web II (1021);
the steel skeleton supporting cross (104) comprises two supporting legs I at the upper end and two supporting legs II at the lower end, the supporting legs I and the supporting legs II are channel steel, the supporting legs I comprise webs IV (1041) and two flanges IV (1042), a plurality of grooves IV are formed in the webs IV (1041), and the grooves IV are arranged at equal intervals along the length direction of the webs IV (1041); the groove IV is sunken towards the direction of the notch of the channel steel, and is a circular groove or a U-shaped groove; a notch is formed in the upper end of the web IV (1041), and the outline of the notch is matched with the outline of the groove I (10111);
the supporting leg II comprises a web V (1043) and two flanges V (1044), a plurality of grooves V are formed in the web V (1043), and the grooves V are arranged at equal intervals along the length direction of the web V (1043); the groove V is sunken towards the direction of the notch of the channel steel, and is a circular groove or a U-shaped groove; the lower end of the web V (1043) is provided with a notch, and the outline of the notch is matched with the outline of the groove II (10211);
when the steel skeleton supporting cross (104) is connected with the steel skeleton upper beam (101), a notch at the upper end of a web IV (1041) is embedded with the outer surface of the groove I (10111), and the outer surfaces of two flanges IV (1042) are respectively attached to and connected with the inner surfaces of two flanges I (1012);
when the steel skeleton supporting cross (104) is connected with the steel skeleton lower beam I (102), the notch at the lower end of the web V (1043) is embedded in the outer surface of the groove II (10211), and the outer surfaces of the two flanges V (1044) are respectively attached to and connected with the inner surfaces of the two flanges II (1022).
3. The prefabricated assembled composite beam with a steel truss concrete composite structure as claimed in claim 2, wherein: the flange IV (1042) and the flange I (1012) are connected in a bolted or welded mode; the flange V (1044) and the flange II (1022) are connected in a bolted or welded mode;
the upper end of the connecting plate II (107) is bolted or welded to the outer surface of the flange I (1012), and the lower end of the connecting plate II is bolted or welded to the outer surface of the flange II (1022);
the upper end of the connecting plate I (106) is connected to the outer surface of the flange I (1012), and the lower end of the connecting plate I is connected to the outer surfaces of the flange II (1022) and the flange III (1032) in a bolting or welding mode.
4. The prefabricated assembled composite beam with a steel truss concrete composite structure as claimed in claim 1, wherein: and a plurality of stiffening plates are arranged on the connecting plate I (106) and the connecting plate II (107).
5. The prefabricated assembled composite beam with a steel truss concrete composite structure as claimed in claim 1, wherein: the prefabricated steel truss concrete composite structure assembled composite beam comprises a plurality of through holes (4), wherein the through holes (4) penetrate through two side walls of the prefabricated steel truss concrete composite structure assembled composite beam, and the through holes (4) are not intersected with the assembled steel truss (1).
6. The prefabricated assembled composite beam with a steel truss concrete composite structure as claimed in claim 1, wherein: the upper end and the lower end of the anti-crack reinforcement cage are reserved with picked-out reinforcements, and the picked-out reinforcements extend out of the concrete protective layer; the anti-cracking reinforcement cage adopts hot-rolled plain steel bars, hot-rolled ribbed steel bars or cold-rolled ribbed steel bars; the anti-cracking reinforcement cage is subjected to encryption treatment at a connecting plate I (106) and a connecting plate II (107).
7. The prefabricated assembled composite beam with a steel truss concrete composite structure as claimed in claim 1, wherein: the concrete for pouring the assembled steel truss (1) and the anti-cracking reinforcement cage is high-strength concrete, common concrete, foam concrete, aerated concrete or slag concrete.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320135.7U CN211590677U (en) | 2019-12-23 | 2019-12-23 | Prefabricated steel truss concrete integrated configuration assembled superposed beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320135.7U CN211590677U (en) | 2019-12-23 | 2019-12-23 | Prefabricated steel truss concrete integrated configuration assembled superposed beam |
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| CN211590677U true CN211590677U (en) | 2020-09-29 |
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