CN210369306U - Steel pipe takes assembled concrete frame beam column joint construction of U-shaped steel corbel - Google Patents

Steel pipe takes assembled concrete frame beam column joint construction of U-shaped steel corbel Download PDF

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Publication number
CN210369306U
CN210369306U CN201920102718.XU CN201920102718U CN210369306U CN 210369306 U CN210369306 U CN 210369306U CN 201920102718 U CN201920102718 U CN 201920102718U CN 210369306 U CN210369306 U CN 210369306U
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steel
shaped steel
prefabricated
annular
steel pipe
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张晨
冯健
孙飞
钱智华
冯国峰
黄伟祥
张吉华
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Jiangsu Jintong Prefabricated Construction Development Co ltd
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Jiangsu Jintong Prefabricated Construction Development Co ltd
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Abstract

The utility model provides an assembly type concrete frame beam column connecting structure with U-shaped steel corbels on steel pipes, which comprises steel nodes, a prefabricated lower intercepting column, a prefabricated upper intercepting column and 2-6 prefabricated superposed beams, wherein the steel nodes comprise annular steel pipes and 2-6U-shaped steel corbels; more than 2 annular flanges are arranged on the inner wall of the annular steel pipe, the annular flange at the bottom end is flush with the bottom of the annular steel pipe, and a plurality of steel bar positioning holes are formed in the annular flange; the prefabricated upper intercepting column is provided with a plurality of upper reserved longitudinal ribs, the prefabricated lower intercepting column is provided with a plurality of lower reserved longitudinal ribs, external threads are machined at the end parts of the lower reserved longitudinal ribs, and the lower reserved longitudinal ribs penetrate through the reinforcement positioning holes and are connected with the upper reserved longitudinal ribs through semi-grouted reinforcement joints; the bottom surface of the semi-grouting type steel bar joint is abutted against the annular flange at the uppermost end; the prefabricated superposed beams are inserted into the U-shaped steel corbels. The utility model discloses the well node outside does not need the template, does not need to support, prefabricated superposed beam connects and does not need to connect, and the installation rate increases substantially, structure node anti-seismic performance is more superior.

Description

Steel pipe takes assembled concrete frame beam column joint construction of U-shaped steel corbel
Technical Field
The invention relates to the field of buildings, in particular to an assembly type concrete frame beam-column connecting structure with a steel pipe and U-shaped steel brackets.
Background
The existing fabricated concrete frame beam-column connection structure has the problems of high manufacturing cost, long construction period, low efficiency and large safety risk for owners, more operation types, more contradictions between an operation field and a stacking field, high transportation cost, more unstable connection factors, high hoisting equipment requirement, high support requirement, difficult construction connection and more control points for a total package, and because of more operation types, difficult professional matching and large design workload during design, difficult beam steel bar collision treatment, difficult stirrup installation in a core area, increased unstable grouting connection quality of a steel bar sleeve, complicated grouting procedures, few problem compensation methods, difficult steel bar positioning and deviation adjustment, low node formwork supporting efficiency, large supporting and erecting workload, low field hoisting construction efficiency, difficult matching of various types and low construction speed; in the later period of supervision, various problems exist, such as the filling degree of grouting and the falling amount of slurry in the curing process are difficult to check, the deviation between a steel bar and a sleeve is compensated, the influence on the connection performance under the repeated action of high stress is solved, and the like, so that a connection structure which can be quickly assembled and is safe and reliable is urgently needed.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a steel pipe fabricated concrete frame beam-column connecting structure with U-shaped steel brackets, aiming at the defects of the prior art. The main innovation is that the precast beam is placed on the U-shaped steel bracket, the installation is convenient, the construction is safe and reliable, the plastic hinge is moved to the outside of the U-shaped steel bracket, and the repairable type is strong after the earthquake.
The technical scheme is as follows: in order to achieve the purpose, the invention is completed in such a way that the steel pipe assembled concrete frame beam column connecting structure with the U-shaped steel corbels comprises steel nodes, a prefabricated lower intercepting column, a prefabricated upper intercepting column and 2-6 prefabricated superposed beams, wherein the steel nodes comprise annular steel pipes and 2-6U-shaped steel corbels; the top and the bottom of the annular steel pipe are provided with openings, the U-shaped steel bracket is fixed on the outer side wall of the annular steel pipe, and the opening direction of the U-shaped steel bracket is consistent with the top direction of the annular steel pipe; more than 2 annular flanges are arranged on the inner wall of the annular steel pipe, the annular flange at the bottom end is flush with the bottom of the annular steel pipe, and a plurality of steel bar positioning holes are formed in the annular flange; the prefabricated upper intercepting column is provided with a plurality of upper reserved longitudinal ribs which penetrate through the length direction of the prefabricated upper intercepting column and extend out of the lower end face of the prefabricated upper intercepting column, the prefabricated lower intercepting column is provided with a plurality of lower reserved longitudinal ribs which penetrate through the length direction of the prefabricated lower intercepting column and extend out of the upper end face of the prefabricated lower intercepting column, the end part of each lower reserved longitudinal rib is provided with an external thread, and each lower reserved longitudinal rib penetrates through a steel bar positioning hole and is connected with the corresponding upper reserved longitudinal; the bottom surface of the semi-grouting type steel bar joint is abutted against the annular flange at the uppermost end, and the top of the semi-grouting type steel bar joint is higher than the top of the annular pipe; the end part of the prefabricated superposed beam is provided with a circle of channel and a main rib extending out of the end surface of the prefabricated superposed beam, the prefabricated superposed beam is inserted into the U-shaped steel bracket through the channel, the main rib is positioned in the U-shaped steel bracket, and the U-shaped steel bracket is fixedly connected with the prefabricated superposed beam through cast-in-place concrete; the top of the annular steel pipe, the top of the U-shaped steel bracket and the top of the prefabricated superposed beam are parallel and level, the bottom of the U-shaped steel bracket and the bottom of the prefabricated superposed beam are parallel and level, and the bottom of the annular steel pipe is lower than the bottom of the U-shaped steel bracket and the bottom of the prefabricated superposed beam or parallel and level with the bottom of the U-shaped steel bracket and the bottom of the prefabricated superposed beam. The prefabricated superposed beams are placed in the U-shaped steel corbels, construction is safe and reliable, installation is convenient, required operation labor is few, and design is simple. The comprehensive performance of the integrated joint work formed by the cast-in-place concrete and the steel nodes is more guaranteed.
Further, the cross-section of annular steel pipe is square or circular, U-shaped steel corbels be 2-4 and the contained angle between two adjacent U-shaped steel corbels is 90 degrees. Can be flexibly selected according to the field situation.
Furthermore, an embedded plate is arranged at the top of the channel, and two sides of the embedded plate are respectively connected with two side plates of the U-shaped steel bracket. The prefabricated superposed beams are welded on the U-shaped steel bracket through the embedded plates, so that the connection between the prefabricated superposed beams and the U-shaped steel bracket is firmer.
Furthermore, the end part of the main reinforcement is provided with an elbow, the end surface of the prefabricated composite beam is rough or is a concave-convex surface, the prefabricated composite beam is also provided with a plurality of construction reinforcements extending out of the end surface of the prefabricated composite beam, a plurality of stirrups are tied up on the construction reinforcements and the main reinforcements, a plurality of stirrups are pre-buried at the top of the prefabricated composite beam, the stirrups are arranged in parallel, and a plurality of longitudinal reinforcements penetrate through the stirrups and the stirrups between the half-grouting type steel bar joints. The prefabricated superposed beam, the cast-in-place concrete and the U-shaped steel bracket form a whole and have better stress performance.
Further, the height of the annular flange at the uppermost end is lower than the height of the top of the annular steel pipe. And the thread tolerance between the semi-grouted steel bar joint and the lower reserved longitudinal bar is reduced.
Furthermore, the outer walls of the annular steel pipe and the U-shaped steel corbel are sequentially provided with an anticorrosive layer and a fireproof layer.
Further, be equipped with the peg on the inside bottom plate of U shaped steel bracket, be equipped with the splice bar between the board of U shaped steel bracket both sides, peg, splice bar welding are on U shaped steel bracket inner wall. U shaped steel bracket non-deformable forms a whole between U shaped steel bracket and the cast in situ concrete.
Furthermore, a plurality of through holes are formed in the bottom plate and the side plate of the U-shaped steel bracket, and the studs and the connecting rib are welded at the through holes in a plug welding mode. The through hole welding connection is firmer.
Furthermore, a gasket is arranged between the annular flange at the uppermost end and the semi-grouting type steel bar joint, a dry pulling rib is arranged between the inner walls of the annular steel pipes, and reinforcing plates perpendicular to the annular flange are arranged on the annular flange and the inner walls of the annular steel pipes; one side of the reinforcing plate is welded on the annular flange, and the other side of the reinforcing plate is welded on the inner wall of the annular steel pipe; a plurality of steel bar through holes are formed in the annular steel pipe wall body at positions corresponding to the U-shaped steel corbels, and a plurality of steel bars penetrate through the steel bar through holes; one end of the steel bar is positioned in the annular steel pipe, and the other end of the steel bar is positioned in the U-shaped steel bracket. The gasket further reduces half grout formula steel bar joint and reserves the screw thread tolerance between the muscle of indulging down, and the reinforcing plate is used for fixed annular flange, and the effect of reinforcing bar through-hole and reinforcing bar is behind the cast in situ concrete for U-shaped steel corbel forms wholly with cyclic annular steel pipe.
Furthermore, the prefabricated upper section column and the prefabricated lower section column are provided with circular through holes along the length direction, and the bottom ends of the circular through holes are horn mouths. The circular through hole can be used for high-position grouting, can also be used for demoulding and hoisting, and can also be used for connecting and installing a lightning arrester. When the concrete is poured on site, the concrete pouring surface is not necessarily on the same horizontal plane, and in order to ensure that all prefabricated upper intercepting columns are located on the same horizontal plane, abutted seams, namely adjusting seams, can be left between the prefabricated upper intercepting columns and the concrete pouring surface. Grout is poured into from the circular through-hole in top now, and circular through-hole lower extreme is the horn mouth for the grout fills up can fill up piece together seam department better, and joint strength is stronger.
The invention has the beneficial effects that: compared with the prior art, the utility model has the advantages of as follows:
1. according to the invention, the concrete is cast in the node on site without a template, the member does not need to be supported, and the prefabricated superposed beam does not need to be connected with a joint, so that the installation speed is greatly improved, and the seismic performance of the structural node is more excellent.
2. According to the invention, the plastic hinge is moved outwards to the outside of the U-shaped steel bracket through the U-shaped steel bracket, so that the repairability after an earthquake is greatly improved.
3. According to the invention, the annular steel pipe, the U-shaped steel corbel, the prefabricated superposed beam, the prefabricated upper intercepting column and the prefabricated lower intercepting column form a whole after concrete is cast in situ, and the prefabricated upper intercepting column and the prefabricated lower intercepting column are not easy to damage.
4. The prefabricated superposed beam connection does not need joints, and the construction without supports saves the support construction and dismantling cost, the construction without templates saves the scaffold construction and template support dismantling cost, reduces the use of mechanical equipment so as to save lease and equipment cost, greatly improves the installation efficiency, shortens the construction period, and saves labor cost and field management cost.
Drawings
Fig. 1 is a schematic structural view of embodiment 1.
Fig. 2 is a structural schematic diagram of a steel node of 4U-shaped steel brackets.
FIG. 3 is a schematic structural diagram of a prefabricated upper truncated column.
Fig. 4 is a schematic structural diagram of a prefabricated lower truncated column.
Fig. 5 is a schematic structural diagram of a prefabricated composite beam.
FIG. 6 is a side view of a steel node.
Fig. 7 is a schematic structural view of a half-grouted rebar junction.
Detailed Description
Example 1: as shown in fig. 1, 2, 3, 4, 5, 6 and 7, the steel pipe assembly type concrete frame beam-column connection structure with the U-shaped steel corbels comprises a steel node 1, a prefabricated upper truncated column 4, a prefabricated lower truncated column 5 and 2-6 prefabricated superposed beams 6, wherein the steel node 1 comprises annular steel pipes 2 and 2-6U-shaped steel corbels 3, the prefabricated upper truncated column 4 and the prefabricated lower truncated column 5 are provided with circular through holes 24 along the length direction, and the bottom ends of the circular through holes 24 are flared. The top and the bottom of the annular steel pipe 2 are opened, the U-shaped steel bracket 3 is welded on the outer side wall of the annular steel pipe 2, and the opening direction of the U-shaped steel bracket 3 is consistent with the top direction of the annular steel pipe 2; the section of the annular steel pipe 2 is rectangular, square or circular, the number of the U-shaped steel corbels 3 is preferably 2-4, and the included angle between every two adjacent U-shaped steel corbels 3 is 90 degrees. Annular steel pipe 2, 3 outer walls of U-shaped steel bracket are equipped with anticorrosive coating, flame retardant coating in proper order, are equipped with peg 19 on the 3 inside bottom plates of U-shaped steel bracket, are equipped with splice bar 20 between 3 both sides boards of U-shaped steel bracket, and peg 19, 20 welding of splice bar are on 3 inner walls of U-shaped steel bracket, preferably are equipped with a plurality of through-holes on 3 bottom plates of U-shaped steel bracket, the curb plate, and peg 19, 20 perforation plugs of splice bar are welded in through-hole department. More than 2 annular flanges 7 are arranged on the inner wall of the annular steel pipe 2, the annular flange 7 at the bottommost end is flush with the bottom of the annular steel pipe 2, the height of the annular flange 7 at the topmost end is lower than that of the top of the annular steel pipe 2, and a plurality of steel bar positioning holes 8 are formed in the annular flange 7; the prefabricated upper intercepting column 4 is provided with a plurality of upper reserved longitudinal ribs 9 which penetrate through the length direction of the prefabricated upper intercepting column and extend out of the lower end face of the prefabricated upper intercepting column, the prefabricated lower intercepting column 5 is provided with a plurality of lower reserved longitudinal ribs 10 which penetrate through the length direction of the prefabricated lower intercepting column and extend out of the upper end face of the prefabricated lower intercepting column, external threads are processed at the end parts of the lower reserved longitudinal ribs 10, and the lower reserved longitudinal ribs 10 penetrate through the reinforcing steel bar positioning holes 8 and are connected with the upper reserved longitudinal ribs 9 through; the bottom surface of the semi-grouting type steel bar joint 11 abuts against the annular flange 7 at the uppermost end, and the top of the semi-grouting type steel bar joint 11 is higher than the top of the annular steel pipe 2; half grout formula steel bar joint 11 includes the connecting sleeve, the nipple, the connecting sleeve inner wall leads to long processing to have the internal thread, the connecting sleeve lower extreme connects the nipple soon, the nipple includes the base member, base member one end surface processing has the external screw thread, base member other end processing internal thread hole, nipple external screw thread connects with connecting sleeve lower extreme internal thread soon, the internal thread hole with reserve down to indulge the external screw thread of 10 tip processing of muscle and connect the fastening soon, reserve on the grout back in the connecting sleeve and indulge muscle 9 and insert from the connecting sleeve upper end. A steel gasket 22 is arranged between the annular flange 7 at the uppermost end and the semi-grouting type steel bar joint 11, a dry pulling rib 21 is arranged between the inner walls of the annular steel pipes, and reinforcing plates 23 vertical to the annular flange are arranged on the inner walls of the annular flange 7 and the annular steel pipe 2; one side of the reinforcing plate 23 is welded on the annular flange 7, and the other side is welded on the inner wall of the annular steel pipe 2; a plurality of steel bar through holes 25 are formed in the wall body of the annular steel pipe 2 at positions corresponding to the U-shaped steel brackets 3, and a plurality of steel bars 26 penetrate through the steel bar through holes 25; one end of the steel bar is positioned in the annular steel pipe 2, and the other end of the steel bar is positioned in the U-shaped steel bracket 3. The end part of the prefabricated superposed beam 6 is provided with a circle of channel 12 and a main rib 13 extending out of the end surface of the prefabricated superposed beam, the prefabricated superposed beam 6 is inserted into the U-shaped steel bracket 3 through the channel 12, the main rib 13 is positioned in the U-shaped steel bracket 3, and the U-shaped steel bracket 3 and the prefabricated superposed beam 6 are fixedly connected through cast-in-place concrete; the top of the channel 12 is provided with an embedded plate 14, and two sides of the embedded plate 14 are respectively welded with two side plates of the U-shaped steel bracket 3. 13 tip of main muscle is equipped with the elbow, 6 terminal surfaces of prefabricated superposed beam are crude or for the buckle face, prefabricated superposed beam 6 still is equipped with a plurality of structure muscle 15 that stretch out its terminal surface, has tied up a plurality of stirrups 16 on structure muscle 15 and the main muscle 13, and 6 top pre-buries in prefabricated superposed beam have a plurality of stirrups 17 No. two, No. 16 stirrups and No. two stirrups 17 parallel arrangement, and a plurality of roof beams are indulged muscle 18 and are passed and run through a stirrups 16 and No. two stirrups 17 from half grout formula steel joint 11 within a definite time. The top of the annular steel pipe 2, the top of the U-shaped steel bracket 3 and the top of the prefabricated superposed beam 6 are parallel and level, the bottom of the U-shaped steel bracket 3 and the bottom of the prefabricated superposed beam 6 are parallel and level, and the bottom of the annular steel pipe 2 is lower than the bottom of the U-shaped steel bracket 3 and the bottom of the prefabricated superposed beam 6 or is parallel and level with the bottom of the U-shaped steel bracket 3 and the bottom of the prefabricated superposed beam 6. In order to further increase the firmness of the whole node area, the connecting sleeve is made of 45# steel material, and the external thread of the end part of the lower reserved longitudinal rib 10 is processed by adopting an accumulation-diameter reduction-thread rolling method.
During installation, the prefabricated lower truncated column 5 and the steel node 1 are spliced on the ground or the prefabricated lower truncated column 5 can be installed firstly and then the steel node 1 is installed. The prefabricated superposed beam 6 is inserted along the U-shaped steel bracket 3, then two side plates of the U-shaped steel bracket 3 are welded with the embedded plates on the prefabricated superposed beam 6, and then connecting ribs between the two side plates of the U-shaped steel bracket 3 are welded. And then placing the prefabricated floor slab on the U-shaped steel bracket 3 and the prefabricated box-folding beam, wherein longitudinal ribs extending out of the side plates of the prefabricated floor slab are pre-embedded in the prefabricated floor slab. The upper beam longitudinal ribs 18 of the prefabricated superposed beam 6 are installed, and the prefabricated superposed beam can be synchronously installed with external wall panels. And (5) cast-in-situ concrete. After the prefabricated upper intercepting column 4 is spliced in an trial mode, the prefabricated upper intercepting column 4 is lifted up to pour slurry into the semi-grouting type steel bar joint 11, and the upper reserved longitudinal bar 9 of the prefabricated upper intercepting column 4 is inserted downwards along the semi-grouting type steel bar joint 11 and is immediately rechecked and adjusted in vertical and height. An adjusting seam exists between the prefabricated upper intercepting column 4 and the concrete surface, the adjusting seam between the concrete surface and the prefabricated upper intercepting column 4 is plugged, and then slurry is poured into the circular through hole to fill the seam.

Claims (10)

1. The steel pipe assembled concrete frame beam column connecting structure with the U-shaped steel corbels is characterized by comprising steel nodes, a prefabricated lower intercepting column, a prefabricated upper intercepting column and 2-6 prefabricated superposed beams, wherein the steel nodes comprise annular steel pipes and 2-6U-shaped steel corbels; the top and the bottom of the annular steel pipe are provided with openings, the U-shaped steel bracket is fixed on the outer side wall of the annular steel pipe, and the opening direction of the U-shaped steel bracket is consistent with the top direction of the annular steel pipe; more than 2 annular flanges are arranged on the inner wall of the annular steel pipe, the annular flange at the bottom end is flush with the bottom of the annular steel pipe, and a plurality of steel bar positioning holes are formed in the annular flange; the prefabricated upper intercepting column is provided with a plurality of upper reserved longitudinal ribs which penetrate through the length direction of the prefabricated upper intercepting column and extend out of the lower end face of the prefabricated upper intercepting column, the prefabricated lower intercepting column is provided with a plurality of lower reserved longitudinal ribs which penetrate through the length direction of the prefabricated lower intercepting column and extend out of the upper end face of the prefabricated lower intercepting column, the end part of each lower reserved longitudinal rib is provided with an external thread, and each lower reserved longitudinal rib penetrates through a steel bar positioning hole and is connected with the corresponding upper reserved longitudinal; the bottom surface of the semi-grouting type steel bar joint is abutted against the annular flange at the uppermost end, and the top of the semi-grouting type steel bar joint is higher than the top of the annular pipe; the end part of the prefabricated superposed beam is provided with a circle of channel and a main rib extending out of the end surface of the prefabricated superposed beam, the prefabricated superposed beam is inserted into the U-shaped steel bracket through the channel, the main rib is positioned in the U-shaped steel bracket, and the U-shaped steel bracket is fixedly connected with the prefabricated superposed beam through cast-in-place concrete; the top of the annular steel pipe, the top of the U-shaped steel bracket and the top of the prefabricated superposed beam are parallel and level, the bottom of the U-shaped steel bracket and the bottom of the prefabricated superposed beam are parallel and level, and the bottom of the annular steel pipe is lower than the bottom of the U-shaped steel bracket and the bottom of the prefabricated superposed beam or parallel and level with the bottom of the U-shaped steel bracket and the bottom of the prefabricated superposed beam.
2. An assembled concrete frame beam column connection structure of steel pipes with U-shaped steel corbels according to claim 1, wherein the section of the annular steel pipe is square or circular, the number of the U-shaped steel corbels is 2-4, and the included angle between two adjacent U-shaped steel corbels is 90 degrees.
3. The fabricated concrete frame beam-column connection structure of a steel pipe with a U-shaped steel corbel according to claim 1, wherein a pre-embedded plate is arranged at the top of the channel, and two sides of the pre-embedded plate are respectively connected with two side plates of the U-shaped steel corbel.
4. The fabricated concrete frame beam column connection structure with the steel pipe having the U-shaped steel corbels as claimed in claim 1, wherein the end of the main reinforcement is provided with an elbow, the end surface of the prefabricated composite beam is rough or concave-convex, the prefabricated composite beam is further provided with a plurality of construction ribs extending out of the end surface of the prefabricated composite beam, a plurality of first stirrups are tied on the construction ribs and the main reinforcement, a plurality of second stirrups are pre-buried at the top of the prefabricated composite beam, the first stirrups and the second stirrups are arranged in parallel, and a plurality of beam longitudinal reinforcements pass through the first stirrups and the second stirrups from the half-grouting type steel bar joints.
5. A fabricated concrete frame beam column connection construction of steel pipes with U-shaped steel corbels as claimed in claim 1, wherein the height of the uppermost ring flange is lower than the height of the top of the ring-shaped steel pipe.
6. An assembled concrete frame beam column connection structure with a U-shaped steel corbel through a steel pipe according to claim 1, characterized in that an anti-corrosion layer and a fire-proof layer are sequentially arranged on the outer walls of the annular steel pipe and the U-shaped steel corbel.
7. The fabricated concrete frame beam-column connection structure with the U-shaped steel corbels through the steel pipes as recited in claim 1, wherein the inner bottom plate of the U-shaped steel corbel is provided with a stud, a connecting rib is arranged between two side plates of the U-shaped steel corbel, and the stud and the connecting rib are connected to the inner wall of the U-shaped steel corbel.
8. An assembled concrete frame beam column connecting structure with a U-shaped steel bracket through steel pipes according to claim 7, wherein a plurality of through holes are formed in a bottom plate and a side plate of the U-shaped steel bracket, and the studs and the connecting ribs are welded at the through holes in a plug welding mode.
9. The fabricated concrete frame beam-column connection structure with the steel pipe having the U-shaped steel corbels as claimed in claim 1, wherein a gasket is further arranged between the annular flange at the uppermost end and the semi-grouting type steel bar joint, a dry tension bar is further arranged between the inner walls of the annular steel pipes, and reinforcing plates perpendicular to the annular flange are further arranged on the annular flange and the inner walls of the annular steel pipes; one side of the reinforcing plate is welded on the annular flange, and the other side of the reinforcing plate is welded on the inner wall of the annular steel pipe; a plurality of steel bar through holes are formed in the annular steel pipe wall body at positions corresponding to the U-shaped steel corbels, and a plurality of steel bars penetrate through the steel bar through holes; one end of the steel bar is positioned in the annular steel pipe, and the other end of the steel bar is positioned in the U-shaped steel bracket.
10. The fabricated concrete frame beam-column connection structure of a steel pipe with a U-shaped steel corbel according to claim 1, wherein the prefabricated upper and lower secant columns are provided with circular through holes along the length direction, and the bottom ends of the circular through holes are flared.
CN201920102718.XU 2019-01-22 2019-01-22 Steel pipe takes assembled concrete frame beam column joint construction of U-shaped steel corbel Active CN210369306U (en)

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CN201920102718.XU CN210369306U (en) 2019-01-22 2019-01-22 Steel pipe takes assembled concrete frame beam column joint construction of U-shaped steel corbel

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Application Number Priority Date Filing Date Title
CN201920102718.XU CN210369306U (en) 2019-01-22 2019-01-22 Steel pipe takes assembled concrete frame beam column joint construction of U-shaped steel corbel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11293183B2 (en) * 2017-06-02 2022-04-05 China State Construction Engineering Corporation Limited Precast column base joint and construction method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11293183B2 (en) * 2017-06-02 2022-04-05 China State Construction Engineering Corporation Limited Precast column base joint and construction method therefor

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