Search

CN-121976607-A - L-shaped combined steel beam column

CN121976607ACN 121976607 ACN121976607 ACN 121976607ACN-121976607-A

Abstract

The invention discloses an L-shaped combined steel beam column. The L-shaped combined steel beam column comprises an upper column, a lower column and a cross beam, wherein the end part of the cross beam is fixedly connected with two adjacent side walls at the bottom end of the upper column and/or two adjacent side walls at the top end of the lower column. The L-shaped combined steel Liang Zhuyou column connecting assembly comprises an upper connecting piece, a lower connecting piece and connecting ribs, wherein the upper connecting piece is embedded at the bottom end of the upper column, the lower connecting piece is embedded at the top end of the lower column, the upper connecting piece comprises a plurality of upper sleeves, the lower connecting piece comprises a plurality of lower sleeves, the open ends of the upper sleeves and the open ends of the lower sleeves are oppositely arranged, and the two ends of the connecting ribs are respectively inserted into the upper sleeves and the lower sleeves and are connected in an anchoring manner. The L-shaped combined steel Liang Zhuyou beam column connecting piece is fixedly connected with two adjacent side walls at the bottom end of the upper column or two adjacent side walls of the lower column. The L-shaped combined steel beam column has definite force transmission path, enhances the rigidity and bearing capacity of a node area, and ensures the stability and safety of the whole structure.

Inventors

  • HOU HETAO
  • LIU SHIQI
  • WANG MINGCHANG
  • LI KEFAN
  • XU JINGJING

Assignees

  • 山东大学

Dates

Publication Date
20260505
Application Date
20260313

Claims (10)

  1. 1. An L-shaped combined steel beam column comprises an upper column (100), a lower column (200) and a beam (300), wherein the end part of the beam (300) is fixedly connected with two adjacent side walls at the bottom end of the upper column (100), and/or the end part of the beam (300) is fixedly connected with two adjacent side walls at the top end of the lower column (200); the device is characterized in that the sections of the upper column (100) and the lower column (200) are rectangular and hollow; The L-shaped combined steel Liang Zhuyou column connecting assembly (400) is used for connecting an upper column (100) and a lower column (200), the column connecting assembly (400) is provided with an upper connecting piece (410), a lower connecting piece (420) and connecting ribs (430), the upper connecting piece (410) is embedded at the bottom end of the upper column (100), the lower connecting piece (420) is embedded at the top end of the lower column (200), the upper connecting piece (410) is provided with an upper rectangular frame (411), a plurality of upper sleeves (412) with open top ends and closed bottom ends are circumferentially arranged on the inner wall of the upper rectangular frame (411), the lower connecting piece (420) is provided with a lower rectangular frame (421) and a plurality of lower sleeves (422) circumferentially arranged on the inner wall of the lower rectangular frame (421), the open ends of the lower sleeves (422) are opposite to the open ends of the upper sleeves (412), and two ends of the connecting ribs (430) are respectively inserted into the upper sleeves (412) and the lower sleeves (422) and are fixedly connected through grouting; The L-shaped combined steel Liang Zhuyou beam column connecting piece (500), the beam column connecting piece (500) is fixedly connected to two adjacent side walls at the bottom end of the upper column (100) or two adjacent side walls of the lower column (200) and is used for connecting the cross beam (300) with the upper column (100) or connecting the cross beam (300) with the lower column (200).
  2. 2. The L-shaped combined steel beam column according to claim 1, wherein in the upper connecting piece (410), two adjacent upper sleeves (412) are communicated through an upper connecting pipe (413), an upper grouting pipe (414) is arranged at a position, close to the lower end, of one upper sleeve (412), an upper exhaust pipe (415) is arranged at a position, close to the upper end, and the upper grouting pipe (414) and the upper exhaust pipe (415) penetrate through the side wall of an upper rectangular frame (411) and extend to the outer side of the upper column (100); In the lower connecting piece (420), two adjacent lower sleeves (422) are communicated through a lower connecting pipe (423), a lower grouting pipe (424) is arranged at a position, close to the lower end, of one lower sleeve (422), a lower exhaust pipe (425) is arranged at a position, close to the lower end, of the lower sleeve, and the lower grouting pipe (424) and the lower exhaust pipe (425) penetrate through the side wall of the lower rectangular frame (421) and extend to the outer side of the lower column (200).
  3. 3. The L-shaped combined steel beam column according to claim 2, wherein the side wall of the bottom end of the upper column (100) is provided with a first avoiding opening (101), and the first avoiding opening (101) penetrates through the side wall of the bottom end of the upper column (100) along the length direction of the upper column (100); the side wall at the top end of the lower column (200) is provided with a second avoidance port (201), and the second avoidance port (201) penetrates through the side wall at the top end of the lower column (200) along the length direction of the lower column (200).
  4. 4. The L-shaped combined steel beam column according to claim 1, wherein a lateral upper limit protrusion (416) is arranged at the edge of the wall surface of the upper rectangular frame (411) corresponding to one side of the opening end of the upper sleeve (412), an upper limit groove (102) corresponding to the position of the upper limit protrusion (416) is formed at the bottom end of the upper column (100), and the upper limit protrusion (416) is embedded in the upper limit groove (102) after the upper connecting piece (410) is installed at the bottom end of the upper column (100); the wall edge of one side of the lower rectangular frame (421) corresponding to the opening end of the lower sleeve (422) is provided with a lateral lower limit bulge, the bottom end of the lower column (200) is provided with a lower limit groove corresponding to the position of the lower limit bulge, and the lower limit bulge is embedded in the lower limit groove after the lower connecting piece (420) is installed at the bottom end of the lower column (200).
  5. 5. The L-shaped composite steel beam column according to claim 1, wherein the upper sleeve (412) comprises a corner upper sleeve (412 a) and a side upper sleeve (412 b), the corner upper sleeve (412 a) is positioned at four corners of the inner wall of the upper rectangular frame (411), and the side upper sleeve (412 b) is positioned at four corners of the inner wall of the upper rectangular frame (411); The lower sleeve (422) comprises a corner lower sleeve (422 a) and an edge lower sleeve (422 b), the corner lower sleeve (422 a) is positioned at four corners of the inner wall of the lower rectangular frame (421), and the edge lower sleeve (422 b) is positioned at four corners of the inner wall of the lower rectangular frame (421); After the upper connecting piece (410) is connected with the lower connecting piece (420), the corner upper sleeve (412 a) corresponds to the corner lower sleeve (422 a) up and down, and the side upper sleeve (412 b) corresponds to the side lower sleeve (422 b) up and down.
  6. 6. The L-shaped composite steel beam column according to claim 1, wherein a sealing gasket (440) is arranged between the upper sleeve (412) and the lower sleeve (422), the connecting ribs (430) penetrate through the sealing gasket (440), and when the upper connecting piece (410) is connected with the lower connecting piece (420), the sealing gasket (440) separates the cavities of the upper sleeve (412) and the lower sleeve (422).
  7. 7. The L-shaped composite steel beam column according to claim 1, wherein the anchoring length of the connecting ribs (430) in the upper sleeve (412) and the lower sleeve (422) is 5-10 cm, respectively.
  8. 8. The L-shaped composite steel beam column according to claim 1, wherein the inner wall of the upper sleeve (412) is provided with first shear keys (417) axially spaced apart, the first shear keys (417) being annular projection structures extending circumferentially along the inner wall of the upper sleeve (412); the inner wall of the lower sleeve (422) is provided with second shear keys (426) which are axially arranged at intervals, and the second shear keys (426) are annular protruding structures which extend along the circumferential direction of the inner wall of the lower sleeve (422).
  9. 9. The L-shaped combined steel beam column according to claim 8, wherein the axial distance between two adjacent first shear keys (417) is 10 mm-25 mm, the radial height of each first shear key (417) is 4 mm-10 mm, the radial height is not more than 1/3 of the radius of the inner wall of the upper sleeve (412), and the axial width of each first shear key (417) is 8 mm-18 mm; The second shear key (426) is identical in structure to the first shear key (417).
  10. 10. The L-shaped combined steel beam column according to claim 1, wherein the beam column connecting piece (500) is provided with two U-shaped steel corbels (501), two end plates (502), two extension plates (503) and two connecting plates (504), wherein a sunken clamping groove is formed between the two side walls of the U-shaped steel corbels (501) and used for accommodating the end parts of the cross beam (300), the end plates (502) are positioned at the end parts of the two side walls of the U-shaped steel corbels (501), and the two extension plates (503) are horizontally arranged at intervals and are fixedly connected perpendicular to the end plates (502); when a beam column connecting piece (500) is used for connecting a beam (300) and an upper column (100), an end plate (502) is attached to the outer wall of the bottom end of the upper column (100), an extension plate (503) penetrates through the outer wall of the bottom end of the upper column (100) and an upper rectangular frame (411) of an upper connecting piece (410) and stretches into an inner cavity, two ends of a connecting plate (504) are connected with extension plates (503) on two adjacent sides in the inner cavity of the upper rectangular frame (411) of the upper connecting piece (410) through bolts and nuts, and the end part of the beam (300) is arranged in a clamping groove of a U-shaped steel bracket (501); When beam column connecting piece (500) connects crossbeam (300) and lower post (200), end plate (502) laminating is in lower post (200) top outer wall, and extension board (503) runs through lower rectangle frame (421) to inner chamber in lower post (200) top outer wall and lower connecting piece (420), and extension board (503) of adjacent both sides face in the inner chamber of lower rectangle frame (421) of connecting piece (420) are passed through to the both ends of connecting plate (504), and crossbeam (300) tip sets up in the draw-in groove of U type steel bracket (501).

Description

L-shaped combined steel beam column Technical Field The invention relates to the field of house construction, in particular to an L-shaped combined steel beam column. Background With the deep advancement of the national 'east-west algorithm' strategy, the box type structure has become a core bearing structure of a modularized data center and a high-density computing power cluster by virtue of the advantages of large rigidity of a closed section, excellent torsion resistance, high integration degree and the like. The connection node is used as a core hub for transferring force of the box-type structure, and the design rationality of the connection node directly determines the deployment efficiency and the bearing safety of the data center. However, the existing connecting node has obvious technical pain points that the traditional welding node is complex in field operation and long in construction period, and is difficult to meet the requirement of quick deployment, the conventional bolt node is large in occupied space and low in rigidity, conflicts with the layout of a high-density machine room, and the problem that the operation space is limited is solved by a part of innovative connecting modes, but equal-strength connection cannot be realized among columns, and the loss of bearing capacity is remarkable. In the field of modularized steel structure construction, the existing nodes also face the problems of insufficient hinging integrity, large steel quantity for rigid connection and the like, and the application of the existing nodes in high-rise and high-intensity fortification areas is restricted. Therefore, a new beam-column connection node is needed, which realizes strong connection such as rigidity and combines compact design and high reliability. Disclosure of Invention The invention provides an L-shaped combined steel beam column, which adopts a connecting rib grouting sleeve connection mode, enhances the integral rigidity of a node through the synergistic effect of a sleeve, connecting ribs and grouting materials, and forms rigid connection of a beam and a column through a beam column connecting piece. The composite structure can ensure the force transmission continuity of the main structure and realize rapid and flexible house construction. The invention provides an L-shaped combined steel beam column, which comprises an upper column, a lower column and a cross beam, wherein the end part of the cross beam is fixedly connected with two adjacent side walls at the bottom end of the upper column, and/or the end part of the cross beam is fixedly connected with two adjacent side walls at the top end of the lower column; the sections of the upper column and the lower column are rectangular and hollow; The L-shaped combined steel Liang Zhuyou column connecting assembly is used for connecting an upper column and a lower column, the column connecting assembly is provided with an upper connecting piece, a lower connecting piece and connecting ribs, the upper connecting piece is embedded at the bottom end of the upper column, the lower connecting piece is embedded at the top end of the lower column, the upper connecting piece is provided with an upper rectangular frame, a plurality of upper sleeves with open top ends and closed bottom ends are circumferentially arranged on the inner wall of the upper rectangular frame, the lower connecting piece is provided with a lower rectangular frame and a plurality of lower sleeves circumferentially arranged on the inner wall of the lower rectangular frame, the open ends of the lower sleeves are opposite to the open ends of the upper sleeves, and two ends of the connecting ribs are respectively inserted into the upper sleeves and the lower sleeves and are fixedly connected through grouting; the L-shaped combined steel Liang Zhuyou beam column connecting piece is fixedly connected to two adjacent side walls at the bottom end of the upper column or two adjacent side walls of the lower column and used for connecting the cross beam with the upper column or connecting the cross beam with the lower column. According to the L-shaped combined steel beam column, two adjacent upper sleeves are communicated through an upper connecting pipe in the upper connecting piece, wherein an upper grouting pipe is arranged at a position, close to the lower end, of one upper sleeve, and an upper exhaust pipe is arranged at a position, close to the upper end, of the upper sleeve; In the lower connecting piece, two adjacent lower sleeves are communicated through a lower connecting pipe, a lower grouting pipe is arranged at a position, close to the lower end, of one lower sleeve, a lower exhaust pipe is arranged at a position, close to the lower end, of one lower sleeve, and the lower grouting pipe and the lower exhaust pipe penetrate through the side wall of the lower rectangular frame and extend to the outer side of the lower column. Further, a first avoiding opening is formed in the side wall