CN211499458U - Removable RC frame beam column node - Google Patents
Removable RC frame beam column node Download PDFInfo
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- CN211499458U CN211499458U CN201921756661.1U CN201921756661U CN211499458U CN 211499458 U CN211499458 U CN 211499458U CN 201921756661 U CN201921756661 U CN 201921756661U CN 211499458 U CN211499458 U CN 211499458U
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Abstract
The utility model discloses a removable RC frame beam column node, including RC frame post and RC frame roof beam. The RC frame beam comprises a rigid section, a transition section I, a yielding section, a transition section II and a common section. When an earthquake occurs, the bending rigidity of the rigid section, the transition section I, the transition section II and the common section is high, and the rigid section, the transition section I, the transition section II and the common section are in an elastic state. The bending stiffness of the yielding section is small and is in a plastic state, i.e. plastic hinge occurs at the yielding section. The yield section is provided with an energy dissipation damper or a dog-bone steel beam made of mild steel, dissipates a large amount of seismic energy, and greatly reduces the damage to other components of the RC frame. And after the earthquake is ended, replacing the dog-bone steel beam with larger deformation or the damaged energy dissipation damper. The utility model discloses a damage of RC frame beam column node is controllable removable with shake the back, has prolonged RC frame construction's life, has further enlarged RC frame construction's application range.
Description
Technical Field
The utility model relates to a building element specifically is a removable RC frame beam column node.
Background
In China, RC frame structures occupy the dominant position in building structures. Multiple earthquake damages indicate that most RC frame structures designed according to the existing earthquake-resistant standard can realize the design target of 'strong columns and weak beams', and the structures form a 'beam hinge mechanism'. However, in the plastic hinge generation area, concrete is seriously damaged, and the reinforcing steel bars also generate large plastic deformation, so that the RC frame beam column node is difficult to repair or is forced to be dismantled due to overhigh repair cost; in addition, the plastic hinge is generated at the beam end, so that the nonlinear deformation permeates into the core area of the node, and the concrete in the core area of the node is easily damaged.
Therefore, there is a need to develop a new RC frame beam column node that can solve the above problems.
Disclosure of Invention
The utility model aims at providing a removable RC frame beam column node.
The technical solution adopted for realizing the purpose of the utility model is that the joint comprises a RC frame column and a RC frame beam, wherein the RC frame column and the RC frame beam are replaceable.
The RC frame beam comprises a transition section I, a yield section, a transition section II, a common section, embedded section steel I and embedded section steel II.
The two ends of the yield section are respectively connected with a transition section I and a transition section II, the transition section I is connected with the RC frame column, and the transition section II is connected with the common section.
The transition section I comprises a conversion steel plate I, a steel beam I and a conversion steel plate II, and the conversion steel plate I and the conversion steel plate II are perpendicularly welded to two ends of the steel beam I respectively.
One end of the embedded steel I is vertically welded with the conversion steel plate I, and the other end of the embedded steel I extends into the RC frame column.
The yield section comprises a steel beam II, a conversion steel plate III and a conversion steel plate IV, the steel beam II is a dog-bone steel beam, the conversion steel plate III and the conversion steel plate IV are vertically welded to two ends of the steel beam II respectively, and the conversion steel plate III is connected with the conversion steel plate II.
And the transition section II comprises a transformation steel plate V, a steel beam III and a transformation steel plate VI, and the transformation steel plate V and the transformation steel plate VI are vertically welded to two ends of the steel beam III respectively. The conversion steel plate V is connected with the conversion steel plate IV, the conversion steel plate VI is connected with the common section, and the common section is of a reinforced concrete structure. The inside pre-buried shaped steel II that is provided with of ordinary section, the one end and the conversion steel sheet VI vertical welding of pre-buried shaped steel II, the other end stretches into ordinary section.
A plurality of studs are uniformly arranged on the embedded section steel I and the embedded section steel II.
Further, be connected with the rigidity section between conversion steel sheet I and the RC frame post, the rigidity section is reinforced concrete structure, and pre-buried shaped steel I is pre-buried in the rigidity section with I welded one end of conversion steel sheet.
The inside level of rigidity section is provided with steel reinforcement cage I, and steel reinforcement cage I includes a plurality of muscle I and a plurality of stirrup I of indulging, and a plurality of one ends of indulging muscle I and the I vertical welding of conversion steel sheet, the other end stretches into in the RC frame post.
The inside level of ordinary section is provided with steel reinforcement cage II, and steel reinforcement cage II includes a plurality of muscle II and a plurality of stirrup II of indulging, and the tip and the conversion steel sheet VI vertical welding of a plurality of muscle II of indulging.
Further, pre-buried shaped steel I and pre-buried shaped steel II are the I-steel, evenly are provided with a plurality of pegs on the edge of a wing outside of pre-buried shaped steel I and the web both sides, evenly are provided with a plurality of pegs on the edge of a wing outside of pre-buried shaped steel II and the web both sides.
Furthermore, the conversion steel plate II, the conversion steel plate III, the conversion steel plate IV and the conversion steel plate V are rectangular steel plates provided with a plurality of bolt holes, and the bolt holes are uniformly distributed on the upper edge and the lower edge or the peripheral edge of the steel plate.
And a plurality of double-end high-strength bolts penetrate through bolt holes in the conversion steel plate II and the conversion steel plate III, a plurality of double-end high-strength bolts penetrate through bolt holes in the conversion steel plate IV and the conversion steel plate V, and nuts are screwed into two ends of each double-end high-strength bolt.
Further, girder steel II is the mild steel that the cross-section is the I-shaped, and the middle section on two edges of a wing of girder steel II all is provided with the gradual change section, and the length direction of girder steel II is vertical for the gradual change section. And the width of the flange of the steel beam II is gradually reduced from the two longitudinal ends of the transition section to the longitudinal midpoint of the transition section.
A replaceable RC frame beam column node comprises an RC frame column and an RC frame beam.
The RC frame beam comprises a rigid section, a transition section I, a yield section, a transition section II, a common section, a plurality of shear steel bars I and a plurality of shear steel bars II.
The two ends of the yield section are respectively connected with a transition section I and a transition section II, a rigid section is connected between the transition section I and the RC frame column, and the transition section II is connected with the common section.
Rigid section and ordinary section are reinforced concrete structure, and the level is provided with a plurality of shear reinforcement I in the rigid section, and the level is provided with a plurality of shear reinforcement II in the ordinary section.
The transition section I comprises a conversion steel plate VII and a steel beam IV, and one end, close to the rigid section, of the steel beam IV is vertically welded with the conversion steel plate VII. One end of each shear steel bar I is connected with the conversion steel plate VII, and the other end of each shear steel bar I is anchored in the RC frame column.
The steel beam IV is I-shaped steel or H-shaped steel and comprises a web I and two flanges I, a plurality of bolt holes are formed in one end, close to the yield section, of the web I, and a plurality of bolt holes are formed in one ends, close to the yield section, of the two flanges I.
The yield section comprises a steel beam V, the steel beam V is I-shaped steel or H-shaped steel, the steel beam V comprises a web II and two flanges II, through holes are formed in the web II, a plurality of bolt holes are formed in the two ends of the web II, and a plurality of bolt holes are formed in the two ends of the two flanges II.
The transition section II comprises a conversion steel plate VIII and a steel beam VI, and one end of the steel beam VI, which is close to the common section, is vertically welded with the conversion steel plate VIII. One end of each shear steel bar II is connected with the corresponding conversion steel plate VIII, and the other end of each shear steel bar II extends into the common section.
The steel beam VI is I-shaped steel or H-shaped steel and comprises a web III and two flanges III, a plurality of bolt holes are formed in one end, close to the yield section, of the web III, and a plurality of bolt holes are formed in one ends, close to the yield section, of the two flanges III.
The steel beam IV and the steel beam V are connected through a plurality of splicing plates, and a plurality of bolt holes are formed in the splicing plates. The joint of the web I and the web II is provided with two splicing plates which are respectively positioned at two sides of the web I and the web II, and a plurality of high-strength bolts penetrate through the web I, the web II and a plurality of bolt holes in the two splicing plates.
The flange I and the flange II are connected with each other through the bolt holes, and the flange I and the flange II are connected with each other through the bolt holes.
And the steel beam V and the steel beam VI are connected through a plurality of splicing plates. The joint of the web III and the web II is provided with two splicing plates which are respectively positioned at two sides of the web III and the web II, and a plurality of high-strength bolts penetrate through the web III, the web II and a plurality of bolt holes in the two splicing plates.
The joint of the flange III and the flange II is provided with two splicing plates which are respectively positioned at the upper side and the lower side of the flange III and the flange II, and a plurality of high-strength bolts penetrate through the flange III, the flange II and a plurality of bolt holes on the two splicing plates.
Each high-strength bolt is screwed in a nut.
Further, girder steel V is made by mild steel, and the through-hole is located the central point of web II. The cross section of the through hole is oval or prismatic.
Furthermore, one end of the shear steel bar I anchored in the RC frame column is provided with a thread, and a nut is screwed into the thread. And a thread is arranged at one end of the shear steel bar II extending into the common section, and a nut is screwed into the thread.
The shear steel bar I and the conversion steel plate VII are connected in a bolt anchoring mode, a perforation plug welding mode or a through welding mode. When the shear steel bars I are connected with the conversion steel plate VII in an anchoring mode, threads are arranged at one end, anchored by the shear steel bars I and the conversion steel plate VII, a plurality of anchor holes are formed in the conversion steel plate VII, the shear steel bars I penetrate through the anchor holes, and nuts are screwed into the threads.
The shear steel bar II and the conversion steel plate VIII are connected in a bolt anchoring mode, a perforation plug welding mode or a through welding mode. When the shear steel bar II is connected with the conversion steel plate VIII in an anchoring mode, threads are arranged at one end, anchored by the shear steel bar II and the conversion steel plate VIII, a plurality of anchor holes are formed in the conversion steel plate VIII, the shear steel bars II penetrate through the anchor holes, and a nut is screwed into each thread.
Further, the steel beam V is replaced by an energy dissipation damper.
Furthermore, the steel beam I, the steel beam III, the steel beam IV and the steel beam VI are all processed by hard steel, and the steel beam I and the steel beam III are all I-shaped steel.
The technical effects of the utility model are undoubted:
1. the bending rigidity of the rigid section, the transition section and the common section of the novel beam-column joint is high, the bending rigidity of the yield section is low, and the plastic hinge is generated at the yield section, so that the damage of the beam-column joint is controllable;
2. the yield section of the novel beam-column joint is provided with an energy-consuming damper or a dog-bone steel beam made of mild steel, and when an earthquake occurs, the yield section dissipates a large amount of energy, so that the damage of a main body component of the RC frame is greatly reduced;
3. after the earthquake is finished, the yield section steel beam can be simply and quickly replaced only by dismounting and mounting the high-strength bolt.
Drawings
Fig. 1 is a schematic diagram (1) of a replaceable RC frame beam-column node in embodiment 1;
fig. 2 is a schematic diagram (2) of a replaceable RC frame beam-column node in embodiment 1;
FIG. 3 is a sectional view taken along line A-A;
FIG. 4 is a sectional view taken along line B-B;
FIG. 5 is a cross-sectional view taken along line C-C;
FIG. 6 is a cross-sectional view taken along line D-D;
FIG. 7 is a cross-sectional view taken along line E-E;
FIG. 8 is a schematic view of a transition steel plate with holes cut around its perimeter;
FIG. 9 is a schematic view of a dog-bone steel beam flange;
fig. 10 is a schematic view (1) of a replaceable RC frame beam-column node in embodiment 2;
fig. 11 is a schematic diagram (2) of a replaceable RC frame beam-column node in embodiment 2;
FIG. 12 is a sectional view taken along line F-F;
FIG. 13 is a sectional view taken along line G-G;
FIG. 14 is a top view of steel beam IV, V and VI;
fig. 15 is a schematic view of a replaceable RC frame beam-column node in embodiment 10.
In the figure: the steel beam structure comprises RC frame columns 1, RC frame beams 2, a rigid section 201, longitudinal ribs I2011, stirrups I2012, a transition section I202, a conversion steel plate I2021, a steel beam I2022, a conversion steel plate II 2023, a conversion steel plate VII 2024, a steel beam IV 2025, a yield section 203, a steel beam II 2031, a gradual change section 20311, a conversion steel plate III 2032, a conversion steel plate IV 2033, a steel beam V2034, a through hole 2035, a transition section II 204, a conversion steel plate V2041, a steel beam III 2042, a conversion steel plate VI 2043, a conversion steel plate VIII 2044, a steel beam VI 2045, a common section 205, longitudinal ribs II 2051, stirrups II 2052, embedded steel I206, embedded steel II 207, studs 208, double-headed high-strength bolts 209, shear steel I210, shear steel II, splicing plates 212 and high strength bolts 213.
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 replaceable RC frame beam column node, which comprises an RC frame column 1 and an RC frame beam 2.
The RC frame beam 2 comprises a rigid section 201, a transition section I202, a yield section 203, a transition section II 204, a common section 205, an embedded section steel I206 and an embedded section steel II 207.
Referring to fig. 1, two ends of the yield section 203 are respectively connected with a transition section i 202 and a transition section ii 204, a rigid section 201 is connected between the transition section i 202 and the RC frame column 1, and the transition section ii 204 is connected with a common section 205. The bending rigidity of the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 is larger, and the bending rigidity of the yielding section 203 is smaller.
Referring to fig. 2, the transition section i 202 includes a conversion steel plate i 2021, a steel beam i 2022 and a conversion steel plate ii 2023, the steel beam i 2022 is an i-steel processed by hard steel, and the conversion steel plate i 2021 and the conversion steel plate ii 2023 are vertically welded to both ends of the steel beam i 2022, respectively.
A rigid section 201 is connected between the conversion steel plate I2021 and the RC frame column 1, the rigid section 201 is of a reinforced concrete structure, and embedded section steel I206 is arranged inside the rigid section 201. Referring to fig. 1, one end of the embedded section steel i 206 is vertically welded to the conversion steel plate i 2021, and the other end of the embedded section steel i extends into the RC frame column 1.
Referring to fig. 3, the inside level of rigidity section 201 is provided with steel reinforcement cage i, and steel reinforcement cage i includes a plurality of vertical bars i 2011 and a plurality of stirrup i 2012, and the one end of a plurality of vertical bars i 2011 and the perpendicular welding of conversion steel sheet i 2021, the other end stretches into in RC frame post 1.
Referring to fig. 2, the yield section 203 comprises a steel beam ii 2031, a transformation steel plate iii 2032 and a transformation steel plate iv 2033, wherein the transformation steel plate iii 2032 and the transformation steel plate iv 2033 are vertically welded to two ends of the steel beam ii 2031 respectively.
Referring to fig. 5 or 9, the steel beam ii 2031 is a dog-bone steel beam, the steel beam ii 2031 is a mild steel with an i-shaped cross section, the middle sections of the two flanges of the steel beam ii 2031 are both provided with a gradual change section 20311, and the length direction of the steel beam ii 2031 is the longitudinal direction of the gradual change section 20311. Along the longitudinal two ends of the gradual change section 20311 to the longitudinal midpoint of the gradual change section 20311, the width of the flange of the steel beam II 2031 is gradually reduced.
The conversion steel plate III 2032 and the conversion steel plate II 2023 are both rectangular steel plates provided with a plurality of bolt holes, and the bolt holes are uniformly distributed on the upper edge and the lower edge of the steel plate. Referring to fig. 2 or 4, a plurality of double-ended high-strength bolts 209 pass through bolt holes on the conversion steel plate ii 2023 and the conversion steel plate iii 2032, two ends of a screw of each double-ended high-strength bolt 209 are provided with threads, a polish rod is arranged in the middle of the screw, and nuts are screwed into two ends of each double-ended high-strength bolt 209.
Referring to fig. 2 or 6, the transition section ii 204 includes a conversion steel plate v 2041, a steel beam iii 2042 and a conversion steel plate vi 2043, the steel beam iii 2042 is an i-steel processed from a hard steel, and the conversion steel plate v 2041 and the conversion steel plate vi 2043 are vertically welded to two ends of the steel beam iii 2042, respectively.
The conversion steel plate IV 2033 and the conversion steel plate V2041 are rectangular steel plates provided with a plurality of bolt holes, and the bolt holes are uniformly distributed on the upper edge and the lower edge of the steel plate. Referring to fig. 2 or 5, a plurality of double-ended high-strength bolts 209 pass through bolt holes on the conversion steel plate iv 2033 and the conversion steel plate v 2041, and nuts are screwed into both ends of each double-ended high-strength bolt 209.
The conversion steel plate VI 2043 is connected with the common section 205, and the common section 205 is of a reinforced concrete structure. Referring to fig. 1, an embedded steel ii 207 is arranged inside the common section 205, one end of the embedded steel ii 207 is vertically welded to the conversion steel plate vi 2043, and the other end of the embedded steel ii extends into the common section 205.
Referring to fig. 7, a reinforcement cage ii is horizontally arranged inside the common section 205, the reinforcement cage ii includes a plurality of longitudinal ribs ii 2051 and a plurality of stirrups ii 2052, and the end portions of the plurality of longitudinal ribs ii 2051 are vertically welded to a conversion steel plate vi 2043.
Referring to fig. 1 or 3, the embedded section steel i 206 and the embedded section steel ii 207 are both i-shaped steel, a plurality of pegs 208 are uniformly arranged on the outer side of the flange of the embedded section steel i 206 and the two sides of the web, and a plurality of pegs 208 are uniformly arranged on the outer side of the flange of the embedded section steel ii 207 and the two sides of the web.
When an earthquake occurs, the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 are in an elastic state, the bending rigidity of the yield section 203 is small, and the yield section 203 is in a plastic state, namely, the plastic hinge is generated on the yield section 203. The steel beam II 2031 is made of mild steel, so that the steel beam II 2031 has good deformation capacity, dissipates a large amount of seismic energy, and greatly reduces the damage to other components of the RC frame;
after the earthquake is finished, the integral RC frame beam is firstly supported, all the double-end high-strength bolts 209 are removed, so that the steel beam II 2031 with larger deformation is removed, the double-end high-strength bolts 209 are reinstalled after a new steel beam II 2031 is replaced, and the replacement process is simple, convenient and quick.
Example 2:
the embodiment discloses a replaceable RC frame beam column node, which comprises an RC frame column 1 and an RC frame beam 2.
The RC frame beam 2 comprises a rigid section 201, a transition section I202, a yield section 203, a transition section II 204, a common section 205, a plurality of shear steel bars I210 and a plurality of shear steel bars II 211.
Referring to fig. 10, a transition section i 202 and a transition section ii 204 are respectively connected to two ends of the yield section 203, a rigid section 201 is connected between the transition section i 202 and the RC frame column 1, and the transition section ii 204 is connected with a common section 205.
The rigid section 201 and the common section 205 are both of reinforced concrete structure. Referring to fig. 12, a plurality of shear reinforcements i 210 are horizontally arranged in the rigid section 201. A plurality of shear steel bars II 211 are horizontally arranged in the common section 205.
Referring to fig. 11, the transition section i 202 comprises a conversion steel plate vii 2024 and a steel beam iv 2025, and one end of the steel beam iv 2025 near the rigid section 201 is vertically welded with the conversion steel plate vii 2024.
One end of each shear steel bar I210 is connected with the conversion steel plate VII 2024, and the other end of each shear steel bar I is anchored in the RC frame column 1. One end of the shear steel bar I210 anchored in the RC frame column 1 is provided with a thread, and a nut is screwed into the thread.
The connection mode of the shear steel bars I210 and the conversion steel plate VII 2024 is bolt anchoring connection, threads are arranged at one end of the shear steel bars I210 anchored with the conversion steel plate VII 2024, a plurality of anchor holes are formed in the conversion steel plate VII 2024, the shear steel bars I210 penetrate through the anchor holes, and nuts are screwed into the threads.
The steel beam IV 2025 is I-shaped steel processed by hard steel, the steel beam IV 2025 comprises a web I and two flanges I, one end of the web I, which is close to the yield section 203, is provided with a plurality of bolt holes, and one end of the two flanges I, which is close to the yield section 203, is provided with a plurality of bolt holes.
Referring to fig. 11, the yield section 203 includes a steel beam v 2034, the steel beam v 2034 is an i-steel made of mild steel, the steel beam v 2034 includes a web ii and two flanges ii, a through hole 2035 is provided on the web ii, and a plurality of bolt holes are provided at both ends of the web ii. Referring to fig. 14, a plurality of bolt holes are formed in two ends of each of the flanges ii.
Referring to fig. 11, the through hole 2035 is located at the center point of the web ii. The cross section of the through hole 2035 is prismatic.
The transition section II 204 comprises a conversion steel plate VIII 2044 and a steel beam VI 2045, and one end, close to the common section 205, of the steel beam VI 2045 is vertically welded with the conversion steel plate VIII 2044.
One end of each shear steel bar II 211 is connected with the corresponding conversion steel plate VIII 2044, and the other end of each shear steel bar II extends into the corresponding common section 205. One end of the shear steel bar II 211 extending into the common section 205 is provided with a thread, and a nut is screwed into the thread.
The shear steel bar II 211 is connected with the conversion steel plate VIII 2044 in a bolt anchoring mode, threads are arranged at one end, anchored with the conversion steel plate VIII 2044, of the shear steel bar II 211, a plurality of anchor holes are formed in the conversion steel plate VIII 2044, the shear steel bars II 211 penetrate through the anchor holes, and a nut is screwed into each thread.
Girder steel VI 2045 is the I-steel that is accomplished by the hard steel processing, and girder steel VI 2045 includes web III and two edges of a wing III, and web III is close to the one end of surging section 203 and is provided with a plurality of bolt holes, and two edges of a wing III all are provided with a plurality of bolt holes near the one end of surging section 203.
Referring to fig. 11, the steel beam iv 2025 and the steel beam v 2034 are connected by a plurality of splice plates 212, and the splice plates 212 are provided with a plurality of bolt holes. The joint of the web I and the web II is provided with two splicing plates 212, the two splicing plates 212 are respectively positioned at two sides of the web I and the web II, and a plurality of high-strength bolts 213 penetrate through the web I, the web II and a plurality of bolt holes in the two splicing plates 212.
The joint of the flange I and the flange II is provided with two splicing plates 212, the two splicing plates 212 are respectively positioned on the upper side and the lower side of the flange I and the flange II, and a plurality of high-strength bolts 213 penetrate through a plurality of bolt holes in the flange I, the flange II and the two splicing plates 212.
The steel beam V2034 and the steel beam VI 2045 are connected through a plurality of splicing plates 212. The joint of the web III and the web II is provided with two splicing plates 212, the two splicing plates 212 are respectively positioned at two sides of the web III and the web II, and a plurality of high-strength bolts 213 penetrate through the web III, the web II and a plurality of bolt holes on the two splicing plates 212.
Two splicing plates 212 are arranged at the connection position of the flange III and the flange II, the two splicing plates 212 are respectively positioned on the upper side and the lower side of the flange III and the flange II, and a plurality of high-strength bolts 213 penetrate through the flange III, the flange II and a plurality of bolt holes in the two splicing plates 212.
Referring to fig. 11 or 13, each of the high-strength bolts 213 is screwed into a nut.
When an earthquake occurs, the bearing capacity of the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 is larger than that of the yield section 203, so that the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 are all in an elastic state, and the yield section 203 is in a plastic state. The steel beam V2034 is made of mild steel, has the characteristics of low yield point and good deformability, consumes a large amount of seismic energy, and greatly reduces the damage to other components of the RC shear wall.
After the earthquake is finished, the integral RC connecting beam is firstly supported, the high-strength bolt 213 is removed, the steel beam V2034 with larger deformation is detached, the high-strength bolt 213 is reinstalled after a new steel beam V2034 is replaced, and the replacing process is simple, convenient and quick.
Example 3:
the main structure of the embodiment is the same as that of the embodiment 2, and further, the steel beam V2034 is replaced by an energy consumption damper.
When an earthquake occurs, the bearing capacity of the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 is larger than that of the yield section 203, so that the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 are all in an elastic state, and the yield section 203 is in a plastic state. The yield section 203 is an energy dissipation damper, so that a large amount of seismic energy is dissipated, and the damage to other components of the RC shear wall is greatly reduced.
And after the earthquake is finished, detecting the energy consumption damper, and if the energy consumption damper is in good function, continuously putting into use without replacement. If the energy consumption damper is detected to be damaged and needs to be replaced, the integral RC connecting beam is firstly supported, the high-strength bolt 213 is removed, the damaged energy consumption damper is detached, the high-strength bolt 213 is reinstalled after a new energy consumption damper is replaced, and the replacement process is simple, convenient and quick.
Example 4:
the embodiment discloses a replaceable RC frame beam column node, which comprises an RC frame column 1 and an RC frame beam 2.
The RC frame beam 2 comprises a rigid section 201, a transition section I202, a yield section 203, a transition section II 204, a common section 205, an embedded section steel I206 and an embedded section steel II 207.
Referring to fig. 1, two ends of the yield section 203 are respectively connected with a transition section i 202 and a transition section ii 204, a rigid section 201 is connected between the transition section i 202 and the RC frame column 1, and the transition section ii 204 is connected with a common section 205. The bending rigidity of the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 is larger, and the bending rigidity of the yielding section 203 is smaller.
Referring to fig. 2, the transition section i 202 includes a conversion steel plate i 2021, a steel beam i 2022 and a conversion steel plate ii 2023, and the conversion steel plate i 2021 and the conversion steel plate ii 2023 are vertically welded to both ends of the steel beam i 2022, respectively.
A rigid section 201 is connected between the conversion steel plate I2021 and the RC frame column 1, the rigid section 201 is of a reinforced concrete structure, and embedded section steel I206 is arranged inside the rigid section 201. Referring to fig. 1, one end of the embedded section steel i 206 is vertically welded to the conversion steel plate i 2021, and the other end of the embedded section steel i extends into the RC frame column 1.
Referring to fig. 2, the yield section 203 comprises a steel beam ii 2031, a conversion steel plate iii 2032 and a conversion steel plate iv 2033, the steel beam ii 2031 is a dog-bone steel beam, the conversion steel plate iii 2032 and the conversion steel plate iv 2033 are vertically welded to two ends of the steel beam ii 2031 respectively, and the conversion steel plate iii 2032 is connected with the conversion steel plate ii 2023.
Referring to fig. 2 or 6, the transition section ii 204 includes a transformation steel plate v 2041, a steel beam iii 2042 and a transformation steel plate vi 2043, and the transformation steel plate v 2041 and the transformation steel plate vi 2043 are respectively vertically welded to two ends of the steel beam iii 2042.
The conversion steel plate V2041 is connected with the conversion steel plate IV 2033, the conversion steel plate VI 2043 is connected with the common section 205, and the common section 205 is of a reinforced concrete structure.
Referring to fig. 1, an embedded steel ii 207 is arranged inside the common section 205, one end of the embedded steel ii 207 is vertically welded to the conversion steel plate vi 2043, and the other end of the embedded steel ii extends into the common section 205.
Referring to fig. 1, a plurality of pegs 208 are uniformly arranged on the embedded section steel i 206 and the embedded section steel ii 207.
Example 5:
the main structure of this embodiment is the same as that of embodiment 4, and further, referring to fig. 1, 2 or 3, the embedded section steel i 206 and the embedded section steel ii 207 are both i-shaped steels, a plurality of pegs 208 are uniformly arranged on the outer side of the flange of the embedded section steel i 206 and on the two sides of the web, and a plurality of pegs 208 are uniformly arranged on the outer side of the flange of the embedded section steel ii 207 and on the two sides of the web.
Example 6:
the main structure of this embodiment is the same as that of embodiment 5, and further, the conversion steel plate ii 2023, the conversion steel plate iii 2032, the conversion steel plate iv 2033, and the conversion steel plate v 2041 are all rectangular steel plates provided with a plurality of bolt holes, see fig. 8, and the bolt holes are uniformly distributed on the peripheral edge of the steel plate where the bolt holes are located.
The plurality of double-end high-strength bolts 209 penetrate through bolt holes in the conversion steel plate II 2023 and the conversion steel plate III 2032, the plurality of double-end high-strength bolts 209 penetrate through bolt holes in the conversion steel plate IV 2033 and the conversion steel plate V2041, and nuts are screwed into two ends of each double-end high-strength bolt 209.
Example 7:
this embodiment major structure is with embodiment 6, further, see fig. 3, the inside level of rigidity section 201 is provided with steel reinforcement cage i, and steel reinforcement cage i includes a plurality of vertical bars i 2011 and a plurality of I2012 of stirrup, and a plurality of one end and the conversion steel sheet I2021 vertical welding of indulging bar i 2011, and the other end stretches into in RC frame post 1.
Referring to fig. 7, a reinforcement cage ii is horizontally arranged inside the common section 205, the reinforcement cage ii includes a plurality of longitudinal ribs ii 2051 and a plurality of stirrups ii 2052, and the end portions of the plurality of longitudinal ribs ii 2051 are vertically welded to a conversion steel plate vi 2043.
Example 8:
the main structure of this embodiment is the same as that of embodiment 7, and further, the steel beam i 2022 and the steel beam iii 2042 are both i-steels processed from hard steels.
Example 9:
the main structure of this embodiment is the same as that of embodiment 8, and further, referring to fig. 5, the steel beam ii 2031 is a mild steel with an i-shaped cross section. Referring to fig. 9, the middle sections of the two flanges of the steel beam ii 2031 are provided with gradual change sections 20311, and the length direction of the steel beam ii 2031 is the longitudinal direction of the gradual change sections 20311. Along the longitudinal two ends of the gradual change section 20311 to the longitudinal midpoint of the gradual change section 20311, the width of the flange of the steel beam II 2031 is gradually reduced.
When an earthquake occurs, the rigid section 201, the transition section I202, the transition section II 204 and the common section 205 are in an elastic state, the bending rigidity of the yield section 203 is small, and the yield section 203 is in a plastic state, namely, the plastic hinge is generated on the yield section 203. The steel beam II 2031 is made of mild steel, so that the steel beam II 2031 has good deformation capacity, dissipates a large amount of seismic energy, and greatly reduces the damage to other components of the RC frame;
after the earthquake is finished, the integral RC frame beam is firstly supported, all the double-end high-strength bolts 209 are removed, so that the steel beam II 2031 with larger deformation is removed, the double-end high-strength bolts 209 are reinstalled after a new steel beam II 2031 is replaced, and the replacement process is simple, convenient and quick.
Example 10:
the embodiment discloses a replaceable RC frame beam column node, which comprises an RC frame column 1 and an RC frame beam 2.
The RC frame beam 2 comprises a transition section I202, a yield section 203, a transition section II 204, a common section 205, embedded section steel I206 and embedded section steel II 207.
Referring to fig. 15, the two ends of the yielding segment 203 are respectively connected with a transition segment i 202 and a transition segment ii 204, the transition segment i 202 is connected with the RC frame column 1, and the transition segment ii 204 is connected with the common segment 205. The bending rigidity of the transition section I202, the transition section II 204 and the common section 205 is larger, and the bending rigidity of the yielding section 203 is smaller.
The transition section I202 comprises a conversion steel plate I2021, a steel beam I2022 and a conversion steel plate II 2023, wherein the steel beam I2022 is an I-shaped steel processed by hard steel, and the conversion steel plate I2021 and the conversion steel plate II 2023 are vertically welded to two ends of the steel beam I2022 respectively.
Referring to fig. 15, one end of the embedded section steel i 206 is vertically welded to the conversion steel plate i 2021, and the other end of the embedded section steel i extends into the RC frame column 1.
The yield section 203 comprises a steel beam II 2031, a conversion steel plate III 2032 and a conversion steel plate IV 2033, wherein the conversion steel plate III 2032 and the conversion steel plate IV 2033 are vertically welded to two ends of the steel beam II 2031 respectively.
The steel beam II 2031 is a dog-bone steel beam, the steel beam II 2031 is a mild steel with an I-shaped section, the middle sections of two flanges of the steel beam II 2031 are provided with gradual change sections 20311, and the length direction of the steel beam II 2031 is longitudinal of the gradual change sections 20311. Along the longitudinal two ends of the gradual change section 20311 to the longitudinal midpoint of the gradual change section 20311, the width of the flange of the steel beam II 2031 is gradually reduced.
The conversion steel plate III 2032 and the conversion steel plate II 2023 are both rectangular steel plates provided with a plurality of bolt holes, and the bolt holes are uniformly distributed on the upper edge and the lower edge of the steel plate. A plurality of double-end high-strength bolts 209 penetrate through bolt holes on the conversion steel plate II 2023 and the conversion steel plate III 2032, threads are arranged at two ends of a screw rod of each high-strength bolt 209, a polish rod is arranged in the middle of the screw rod, and nuts are screwed in two ends of each double-end high-strength bolt 209.
The transition section II 204 comprises a conversion steel plate V2041, a steel beam III 2042 and a conversion steel plate VI 2043, the steel beam III 2042 is I-shaped steel processed by hard steel, and the conversion steel plate V2041 and the conversion steel plate VI 2043 are vertically welded to two ends of the steel beam III 2042 respectively.
The conversion steel plate IV 2033 and the conversion steel plate V2041 are rectangular steel plates provided with a plurality of bolt holes, and the bolt holes are uniformly distributed on the upper edge and the lower edge of the steel plate. Referring to fig. 2 or 5, a plurality of double-ended high-strength bolts 209 pass through bolt holes on the conversion steel plate iv 2033 and the conversion steel plate v 2041, and nuts are screwed into both ends of each double-ended high-strength bolt 209.
The conversion steel plate VI 2043 is connected with the common section 205, and the common section 205 is of a reinforced concrete structure. Referring to fig. 15, an embedded steel ii 207 is arranged inside the common section 205, one end of the embedded steel ii 207 is vertically welded to the conversion steel plate vi 2043, and the other end of the embedded steel ii extends into the common section 205.
The inside level of ordinary section 205 is provided with steel reinforcement cage II, and steel reinforcement cage II includes a plurality of muscle II 2051 and a plurality of stirrup II 2052 of indulging, and the tip of a plurality of muscle II 2051 of indulging is perpendicular with conversion steel sheet VI 2043 and is welded.
The embedded section steel I206 and the embedded section steel II 207 are both H-shaped steel, a plurality of pegs 208 are uniformly arranged on the outer side of the flange of the embedded section steel I206 and the two sides of the web, and a plurality of pegs 208 are uniformly arranged on the outer side of the flange of the embedded section steel II 207 and the two sides of the web.
When an earthquake occurs, the transition section I202, the transition section II 204 and the common section 205 are in an elastic state, the bending rigidity of the yield section 203 is small, and the yield section 203 is in a plastic state, namely, the plastic hinge is formed in the yield section 203. The steel beam II 2031 is made of mild steel, so that the steel beam II 2031 has good deformation capacity, dissipates a large amount of seismic energy, and greatly reduces the damage to other components of the RC frame;
after the earthquake is finished, the integral RC frame beam is firstly supported, all the double-end high-strength bolts 209 are removed, so that the steel beam II 2031 with larger deformation is removed, the double-end high-strength bolts 209 are reinstalled after a new steel beam II 2031 is replaced, and the replacement process is simple, convenient and quick.
Claims (9)
1. The utility model provides a removable RC frame beam column node which characterized in that: the structure comprises RC frame columns (1) and RC frame beams (2);
the RC frame beam (2) comprises a transition section I (202), a yield section (203), a transition section II (204), a common section (205), embedded section steel I (206) and embedded section steel II (207);
two ends of the yield section (203) are respectively connected with a transition section I (202) and a transition section II (204), the transition section I (202) is connected with the RC frame column (1), and the transition section II (204) is connected with the common section (205);
the transition section I (202) comprises a conversion steel plate I (2021), a steel beam I (2022) and a conversion steel plate II (2023), wherein the conversion steel plate I (2021) and the conversion steel plate II (2023) are vertically welded to two ends of the steel beam I (2022) respectively;
one end of the embedded section steel I (206) is vertically welded with the conversion steel plate I (2021), and the other end of the embedded section steel I extends into the RC frame column (1);
the yield section (203) comprises a steel beam II (2031), a conversion steel plate III (2032) and a conversion steel plate IV (2033), the steel beam II (2031) is a dog-bone steel beam, the conversion steel plate III (2032) and the conversion steel plate IV (2033) are respectively and vertically welded to two ends of the steel beam II (2031), and the conversion steel plate III (2032) is connected with the conversion steel plate II (2023);
the transition section II (204) comprises a conversion steel plate V (2041), a steel beam III (2042) and a conversion steel plate VI (2043), and the conversion steel plate V (2041) and the conversion steel plate VI (2043) are vertically welded to two ends of the steel beam III (2042) respectively; the conversion steel plate V (2041) is connected with the conversion steel plate IV (2033), the conversion steel plate VI (2043) is connected with the common section (205), and the common section (205) is of a reinforced concrete structure; the general section (205) is internally provided with embedded section steel II (207), one end of the embedded section steel II (207) is vertically welded with the conversion steel plate VI (2043), and the other end of the embedded section steel II (207) extends into the general section (205);
the steel beam I (2022) and the steel beam III (2042) are both I-shaped steels processed from hard steels;
and a plurality of studs (208) are uniformly arranged on the embedded section steel I (206) and the embedded section steel II (207).
2. The replaceable RC frame beam-column joint of claim 1 wherein: a rigid section (201) is connected between the conversion steel plate I (2021) and the RC frame column (1), the rigid section (201) is of a reinforced concrete structure, and one end of the embedded section steel I (206) welded with the conversion steel plate I (2021) is embedded in the rigid section (201);
a reinforcement cage I is horizontally arranged inside the rigid section (201), the reinforcement cage I comprises a plurality of longitudinal reinforcements I (2011) and a plurality of stirrups I (2012), one ends of the longitudinal reinforcements I (2011) are vertically welded with the conversion steel plate I (2021), and the other ends of the longitudinal reinforcements I extend into the RC frame column (1);
the steel reinforcement cage II is horizontally arranged inside the common section (205), comprises a plurality of longitudinal reinforcements II (2051) and a plurality of stirrups II (2052), and the end parts of the longitudinal reinforcements II (2051) are vertically welded with a conversion steel plate VI (2043).
3. The replaceable RC frame beam-column joint of claim 1 wherein: the embedded section steel I (206) and the embedded section steel II (207) are both H-shaped steel, a plurality of pegs (208) are uniformly arranged on the outer side of the flange of the embedded section steel I (206) and the two sides of the web, and a plurality of pegs (208) are uniformly arranged on the outer side of the flange of the embedded section steel II (207) and the two sides of the web.
4. The replaceable RC frame beam-column joint of claim 1 wherein: the conversion steel plate II (2023), the conversion steel plate III (2032), the conversion steel plate IV (2033) and the conversion steel plate V (2041) are rectangular steel plates provided with a plurality of bolt holes, and the bolt holes are uniformly distributed on the upper edge and the lower edge or the peripheral edge of the steel plate;
a plurality of double-end high-strength bolts (209) penetrate through bolt holes in the conversion steel plate II (2023) and the conversion steel plate III (2032), a plurality of double-end high-strength bolts (209) penetrate through bolt holes in the conversion steel plate IV (2033) and the conversion steel plate V (2041), and nuts are screwed into two ends of each double-end high-strength bolt (209).
5. The replaceable RC frame beam-column joint of claim 1 wherein: the steel beam II (2031) is made of mild steel with an I-shaped section, the middle sections of two flanges of the steel beam II (2031) are provided with gradual change sections (20311), and the length direction of the steel beam II (2031) is the longitudinal direction of the gradual change sections (20311); the width of the flange of the steel beam II (2031) is gradually reduced from the two longitudinal ends of the transition section (20311) to the longitudinal midpoint of the transition section (20311).
6. The utility model provides a removable RC frame beam column node which characterized in that: the structure comprises RC frame columns (1) and RC frame beams (2);
the RC frame beam (2) comprises a rigid section (201), a transition section I (202), a yielding section (203), a transition section II (204), a common section (205), a plurality of shear steel bars I (210) and a plurality of shear steel bars II (211);
the two ends of the yield section (203) are respectively connected with a transition section I (202) and a transition section II (204), a rigid section (201) is connected between the transition section I (202) and the RC frame column (1), and the transition section II (204) is connected with a common section (205);
the rigid section (201) and the common section (205) are both of reinforced concrete structures, a plurality of shear steel bars I (210) are horizontally arranged in the rigid section (201), and a plurality of shear steel bars II (211) are horizontally arranged in the common section (205);
the transition section I (202) comprises a conversion steel plate VII (2024) and a steel beam IV (2025), and one end of the steel beam IV (2025) close to the rigid section (201) is vertically welded with the conversion steel plate VII (2024); one end of each shear steel bar I (210) is connected with the conversion steel plate VII (2024), and the other end of each shear steel bar I is anchored in the RC frame column (1);
the steel beam IV (2025) is I-shaped steel or H-shaped steel, the steel beam IV (2025) comprises a web I and two flanges I, a plurality of bolt holes are formed in one end, close to the yield section (203), of the web I, and a plurality of bolt holes are formed in one ends, close to the yield section (203), of the two flanges I;
the yield section (203) comprises a steel beam V (2034), the steel beam V (2034) is I-shaped steel or H-shaped steel, the steel beam V (2034) comprises a web II and two flanges II, a through hole (2035) is formed in the web II, a plurality of bolt holes are formed in two ends of the web II, and a plurality of bolt holes are formed in two ends of the two flanges II;
the transition section II (204) comprises a conversion steel plate VIII (2044) and a steel beam VI (2045), and one end, close to the common section (205), of the steel beam VI (2045) is vertically welded with the conversion steel plate VIII (2044); one end of each shear steel bar II (211) is connected with the corresponding conversion steel plate VIII (2044), and the other end of each shear steel bar II extends into the corresponding common section (205);
the steel beam IV (2025) and the steel beam VI (2045) are both processed by hard steel;
the steel beam VI (2045) is I-shaped steel or H-shaped steel, the steel beam VI (2045) comprises a web III and two flanges III, one end of the web III, which is close to the yield section (203), is provided with a plurality of bolt holes, and one ends of the two flanges III, which are close to the yield section (203), are provided with a plurality of bolt holes;
the steel beam IV (2025) and the steel beam V (2034) are connected through a plurality of splicing plates (212), and a plurality of bolt holes are formed in the splicing plates (212); two splicing plates (212) are arranged at the junction of the web plate I and the web plate II, the two splicing plates (212) are respectively positioned at two sides of the web plate I and the web plate II, and a plurality of high-strength bolts (213) penetrate through the web plate I, the web plate II and a plurality of bolt holes on the two splicing plates (212);
two splicing plates (212) are arranged at the junction of the flange I and the flange II, the two splicing plates (212) are respectively positioned on the upper side and the lower side of the flange I and the flange II, and a plurality of high-strength bolts (213) penetrate through a plurality of bolt holes in the flange I, the flange II and the two splicing plates (212);
the steel beam V (2034) and the steel beam VI (2045) are connected through a plurality of splicing plates (212); two splicing plates (212) are arranged at the junction of the web plate III and the web plate II, the two splicing plates (212) are respectively positioned at two sides of the web plate III and the web plate II, and a plurality of high-strength bolts (213) penetrate through the web plate III, the web plate II and a plurality of bolt holes on the two splicing plates (212);
two splicing plates (212) are arranged at the connection position of the flange III and the flange II, the two splicing plates (212) are respectively positioned on the upper side and the lower side of the flange III and the flange II, and a plurality of high-strength bolts (213) penetrate through a plurality of bolt holes in the flange III, the flange II and the two splicing plates (212);
each high-strength bolt (213) is screwed into a nut.
7. The replaceable RC frame beam-column node of claim 6, wherein: the steel beam V (2034) is made of mild steel, and the through hole (2035) is positioned on the central point of the web II; the cross section of the through hole (2035) is oval or prismatic.
8. The replaceable RC frame beam-column node of claim 6, wherein: one end of the shear steel bar I (210) anchored in the RC frame column (1) is provided with a thread, and a nut is screwed into the thread; one end of the shear steel bar II (211) extending into the common section (205) is provided with a thread, and a nut is screwed into the thread;
the shear steel bar I (210) and the conversion steel plate VII (2024) are connected in a bolt anchoring mode, a perforation plug welding mode or a through welding mode; when the shear steel bars I (210) are in anchoring connection with the conversion steel plate VII (2024), threads are arranged at one anchoring end of the shear steel bars I (210) and the conversion steel plate VII (2024), a plurality of anchor holes are formed in the conversion steel plate VII (2024), a plurality of shear steel bars I (210) penetrate through the anchor holes, and a nut is screwed into each thread;
the shear steel bar II (211) and the conversion steel plate VIII (2044) are connected in a bolt anchoring mode, a perforation plug welding mode or a through welding mode; when the shear steel bars II (211) are connected with the conversion steel plate VIII (2044) in an anchoring mode, threads are arranged at one end, anchored with the conversion steel plate VIII (2044), of the shear steel bars II (211), a plurality of anchor holes are formed in the conversion steel plate VIII (2044), the shear steel bars II (211) penetrate through the anchor holes, and nuts are screwed into the threads.
9. The replaceable RC frame beam-column node of claim 6, wherein: the steel beam V (2034) is replaced by an energy-consuming damper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921756661.1U CN211499458U (en) | 2019-10-19 | 2019-10-19 | Removable RC frame beam column node |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921756661.1U CN211499458U (en) | 2019-10-19 | 2019-10-19 | Removable RC frame beam column node |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931312A (en) * | 2021-12-17 | 2022-01-14 | 北京科技大学 | Gravity and lateral force separated assembly type energy dissipation structure system and design method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113931312A (en) * | 2021-12-17 | 2022-01-14 | 北京科技大学 | Gravity and lateral force separated assembly type energy dissipation structure system and design method |
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