CN102650168A - Connecting method and connection joint for concrete-filled steel square tubular columns and steel beams - Google Patents
Connecting method and connection joint for concrete-filled steel square tubular columns and steel beams Download PDFInfo
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Abstract
The invention discloses a connecting method and a connection joint for concrete-filled steel square tubular columns and steel beams. The method comprises the following steps: selecting the I-shaped steel beams and the concrete-filled steel square tubular columns; fixedly connecting the I-shaped steel beams on one sides of the columns onto the column walls on one sides of the concrete-filled steel square tubular columns by No.2 angle steels through bolts and fixedly connecting the I-shaped steel beams on the other sides of the columns onto the column walls on the opposite sides of the concrete-filled steel square tubular columns also by No.2 angle steels through bolts; and then respectively penetrating carbon fiber ribs through any group of fiber rib through holes of which the positions are over against each other and respectively fixing both ends of the carbon fiber ribs on the No.1 angle steels at the corresponding ends so as to carry out traction fixation on the I-shaped steel beams on both sides of the concrete-filled steel square tubular columns, wherein any one section of carbon fiber rib has the penetrating path: the No.1 angle steel on one I-shaped steel beam, concrete-filled steel square tubular column cavities and the No.1 angle steel on another I-shaped steel beam. According to the invention, the integral bending and shearing resistance capacity of the connection joint can be further improved and the connection joint has higher ductility and energy consumption capacity, so that the connection joint has better seismic performance.
Description
Technical field
The present invention relates to steel and concrete compound mode that construction work is used, the method for attachment of especially a kind of concrete-filled steel square tubular column and girder steel, and the connected node of a kind of concrete-filled steel square tubular column and girder steel.
Background technology
According to the loading characteristic that steel core concrete column is connected with girder steel, its connected node type can be divided into following several types: (1) hinged joint: beam only transmits support shearing force and gives steel core concrete column; (2) semi-rigid node: the angle of loading process central sill and concrete filled steel tube mast axis changes, and the relative rotation displacement is promptly arranged between the two, thereby possibly cause redistribution of internal force; (3) rigid joint: rigid joint need guarantee that in loading process the angle of girder steel and concrete filled steel tube mast axis remains unchanged.
At present; Rigid joint is to use the most a kind of joint form in China's construction work, and the connected node that is used for concrete-filled steel square tubular column and girder steel that China's " concrete-filled rectangular steel tube structure technology rules " (CECS159:2004) provides mainly contains forms such as internal partition formula, external partition formula.This joint form stress performance is good, and integral rigidity is big.Yet the eighties of last century the nineties occurs in the earthquake of Los Angeles,U.S (1994), Japanese slope refreshing (1995) and Turkey (1999); The traditional rigid connected node receives comparatively serious destruction; The research of double rigid joint of domestic scholars is put more effort; The steel core concrete column of through ribbed and the connected node of girder steel have occurred, this joint form has following advantage: owing to considered the relative deformation of node region, the stress that can relax in the rod member is concentrated (1); (2) under seismic loading, the energy dissipation effect of position of joints can reduce the displacement response of structure; (3) be easier to the operation of repair after the calamity; (4) with respect to rigidly connecting fully or hinged, design more approaches the working condition of structure; (5) construction is operated etc. with quality managemant more easily.
But above-mentioned semi-rigid node, welding stress concentrate and welding deformation aspect, and aspects such as the ductility of node and the energy dissipation capacity improvement further that awaits.
Summary of the invention
Task of the present invention is to solve the deficiency that the connected node embodiment of concrete-filled steel square tubular column and girder steel in the prior art exists, and the method for attachment of a kind of concrete-filled steel square tubular column and girder steel is provided, and the connected node of a kind of concrete-filled steel square tubular column and girder steel.
Its technical solution is:
The method of attachment of a kind of concrete-filled steel square tubular column and girder steel comprises the steps:
A prepares some i-shape steel beams; On the top flange of each section steel beam and bottom flange, a bugle steel is set respectively, a bugle steel is connected on the edge of a wing through bolt, and two bugle steel are set on the web of each section steel beam, and two bugle steel are connected on the web through bolt; On a bugle steel, be provided for the angle steel fiber muscle through hole of tractive carbon fibre bar, the two bugle steel bolts hole that on two bugle steel, are provided for being connected with the concrete-filled steel square tubular column post jamb;
B prepares some concrete-filled steel square tubular columns; On the post jamb of each concrete-filled steel square tubular column, offer the post jamb carbon fibre bar through hole of a corresponding above-mentioned bugle steel fibre muscle through hole and the post jamb bolt hole of corresponding above-mentioned two bugle steel bolts hole respectively; The post jamb fiber muscle number of openings of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical, and the position at corresponding, and corresponding one by one one group of post jamb fiber muscle through hole place is just relative;
C chooses two section steel beams and the concrete-filled steel square tubular column among the step b among the step a; Section steel beam wherein is connected on the lateral column wall of concrete-filled steel square tubular column; Promptly use bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Another root section steel beam is connected on the relative lateral column wall of concrete-filled steel square tubular column, promptly uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Then; Use carbon fibre bar pass respectively any one group of position over against fiber muscle through hole; Concerning any one section carbon fibre bar; It passes the path: wherein post jamb fiber muscle through hole on the angle steel fiber muscle through hole on section steel beam, the post jamb fiber muscle through hole on the lateral column wall, concrete-filled steel square tubular column chamber, the opposite side post jamb and the angle steel fiber muscle through hole on another root section steel beam; The two ends of carbon fibre bar are separately fixed at the angle steel fiber muscle through hole of corresponding end, the section steel beam of concrete-filled steel square tubular column both sides is carried out tractive fix.
Among the above-mentioned steps a; For one one bugle steel; Be set up in parallel two or more angle steel fiber muscle through holes; Use and carry out tractive for many carbon fibre bars and fix, and be set up in parallel two or more bugle steel bolts hole, one bugle steel is fixed on the edge of a wing in order to use a plurality of bolts.
Among the above-mentioned steps a; Each shaped steel all is provided with two two bugle steel; Lay respectively at the both sides of web, each two bugle steel is respectively arranged with two group of two bugle steel bolt hole, and each organizes two bugle steel bolts hole all has two or more bolts hole arranged side by side; Wherein one group of two bugle steel bolt hole is used for being connected with post jamb, and another is organized two bugle steel bolts hole and is used for being connected with steel beam web plate.
Among the above-mentioned steps b, the post jamb number of bolt hole of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical, and the position at corresponding, and corresponding one by one a pair of post jamb bolt hole place is just relative.
Among the above-mentioned steps c, armor coated on carbon fibre bar, topping adopts resin base class water proof glue material.
Among the above-mentioned steps c, use anchoring piece that it is carried out anchor connection respectively at the two ends of carbon fibre bar.
The connected node of a kind of concrete-filled steel square tubular column and girder steel comprises a concrete-filled steel square tubular column, two i-shape steel beams and plurality of sections carbon fibre bar; On the top flange of each section steel beam and bottom flange, be respectively arranged with a bugle steel, a bugle steel is connected on the edge of a wing through bolt, and the web of each section steel beam is provided with two bugle steel, and two bugle steel are connected on the web through bolt; One bugle steel is provided with the angle steel fiber muscle through hole that is used for the tractive carbon fibre bar, and two bugle steel are provided with the two bugle steel bolts hole that are used for being connected with the post jamb of concrete-filled steel square tubular column; On the post jamb of each concrete-filled steel square tubular column, offer the post jamb fiber muscle through hole of corresponding above-mentioned angle steel fiber muscle through hole and the post jamb bolt hole of corresponding above-mentioned two bugle steel bolts hole respectively; The post jamb fiber muscle number of openings of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical; The position at corresponding, and corresponding one by one a pair of post jamb fiber muscle through hole place is just relative; A section steel beam in above-mentioned two i-shape steel beams is connected on the lateral column wall of concrete-filled steel square tubular column; It uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Another root section steel beam is connected on the relative lateral column wall of concrete-filled steel square tubular column, and it uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Carbon fibre bar pass respectively any one group of position over against fiber muscle through hole; Concerning any one section carbon fibre bar; It passes the path: wherein post jamb fiber muscle through hole on the angle steel fiber muscle through hole on section steel beam, the post jamb fiber muscle through hole on the lateral column wall, concrete-filled steel square tubular column chamber, the opposite side post jamb and the angle steel fiber muscle through hole on another root section steel beam; The two ends of carbon fibre bar are separately fixed at the angle steel fiber muscle through hole of corresponding end, the section steel beam of concrete-filled steel square tubular column both sides is carried out tractive fix.
The post jamb number of bolt hole of on the relative both sides post jamb of above-mentioned concrete-filled steel square tubular column, offering is identical, and the position at corresponding, and corresponding one by one a pair of post jamb bolt hole place is just relative.
On above-mentioned carbon fibre bar, be coated with topping, topping adopts resin base class water proof glue material to process.
Be respectively arranged with the anchoring piece that carries out anchor connection at the two ends of above-mentioned carbon fibre bar.
The present invention has following useful technique effect:
The present invention can further improve the whole bending resistance and the shear resistance of connected node, makes connected node have more ductility and energy dissipation capacity, thereby makes its anti-seismic performance better.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is illustrated further:
Fig. 1 shows its partial structurtes for the structural principle sketch map of a kind of embodiment of the connected node of concrete-filled steel square tubular column among the present invention and girder steel.
Fig. 2 shows a kind of positive facade structures of Fig. 1 mode.
Fig. 3 shows a kind of plane structure of Fig. 1 mode.
The specific embodiment
In conjunction with Fig. 1, Fig. 2 and Fig. 3, the connected node of a kind of concrete-filled steel square tubular column and girder steel comprises a concrete-filled steel square tubular column 1, two i-shape steel beams 2 and plurality of sections carbon fibre bars 3.On the top flange of each section steel beam and bottom flange, be respectively arranged with a bugle steel 4, one bugle steel and be connected on the edge of a wing through bolt, the web of each section steel beam is provided with two bugle steel, 5, two bugle steel and is connected on the web through bolt.One bugle steel is provided with the angle steel fiber muscle through hole that is used for the tractive carbon fibre bar, and two bugle steel are provided with the two bugle steel bolts hole that are used for being connected with the post jamb of concrete-filled steel square tubular column.On the post jamb of concrete-filled steel square tubular column, offer the post jamb fiber muscle through hole of corresponding above-mentioned angle steel fiber muscle through hole and the post jamb bolt hole of corresponding above-mentioned two bugle steel bolts hole respectively; The post jamb fiber muscle number of openings of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical; The position at corresponding, and corresponding one by one a pair of post jamb fiber muscle through hole place is just relative.A section steel beam in above-mentioned two section steel beams is connected on the lateral column wall of concrete-filled steel square tubular column; It uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Another root section steel beam is connected on the relative lateral column wall of concrete-filled steel square tubular column, and it uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel.Carbon fibre bar pass respectively any one group of position over against fiber muscle through hole; Concerning any one section carbon fibre bar; It passes the path: wherein post jamb fiber muscle through hole on the angle steel fiber muscle through hole on section steel beam, the post jamb fiber muscle through hole on the lateral column wall, concrete-filled steel square tubular column chamber, the opposite side post jamb and the angle steel fiber muscle through hole on another root section steel beam; The two ends of carbon fibre bar are separately fixed at the angle steel fiber muscle through hole of corresponding end, the section steel beam of concrete-filled steel square tubular column both sides is carried out tractive fix.Be respectively arranged with the anchoring piece 6 that carries out anchor connection at the two ends of above-mentioned carbon fibre bar; Anchoring piece can be selected steel bushing for use; Steel bushing is enclosed within the two ends of one section carbon fibre bar respectively, and can apply a small amount of prestressing force this moment, adopts the mode of extruding to carry out radial compression then and carry out anchor connection.The post jamb number of bolt hole of on the relative both sides post jamb of above-mentioned concrete-filled steel square tubular column, offering is identical, and the position at corresponding, and corresponding one by one a pair of post jamb bolt hole place is just relative.On above-mentioned carbon fibre bar, be coated with topping, topping adopts resin base class water proof glue material to process, to reach better waterproof and decay resistance.Above-mentioned bolt and carbon fibre bar all can be selected existing high-strength bolt and high-strength carbon fibre muscle for use.
The method of attachment of a kind of concrete-filled steel square tubular column and girder steel comprises the steps:
A prepares some i-shape steel beams; On the top flange of each section steel beam and bottom flange, a bugle steel is set respectively, a bugle steel is connected on the edge of a wing through bolt, and two bugle steel are set on the web of each section steel beam, and two bugle steel are connected on the web through bolt; On a bugle steel, be provided for the angle steel fiber muscle through hole of tractive carbon fibre bar, the two bugle steel bolts hole that on two bugle steel, are provided for being connected with the post jamb of concrete-filled steel square tubular column.In this step; For one one bugle steel; Can be set up in parallel two or more angle steel fiber muscle through holes; Carry out tractive for many carbon fibre bars and fix, and be set up in parallel two or more bugle steel bolts hole, one bugle steel is fixed on the girder steel edge of a wing in order to use many bolts.In this step; Each section steel beam all is provided with two two bugle steel; Lay respectively at the both sides of steel beam web plate, each two bugle steel is respectively arranged with two group of two bugle steel bolt hole, and each organizes two bugle steel bolts hole all has two or more bolts hole arranged side by side; Wherein one group of two bugle steel bolt hole is used for being connected with post jamb, and another is organized two bugle steel bolts hole and is used for being connected with steel beam web plate.
B prepares some concrete-filled steel square tubular columns; On the post jamb of each concrete-filled steel square tubular column, offer the post jamb fiber muscle through hole of corresponding above-mentioned angle steel fiber muscle through hole and the post jamb bolt hole of corresponding above-mentioned two bugle steel bolts hole respectively; The post jamb fiber muscle number of openings of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical, and the position at corresponding, and corresponding one by one a pair of post jamb fiber muscle through hole place is just relative.In this step, the post jamb number of bolt hole that can on the relative both sides post jamb of concrete-filled steel square tubular column, offer is identical, and the position at corresponding, and corresponding one by one a pair of post jamb bolt hole place is just relative.
C chooses two section steel beams and the concrete-filled steel square tubular column among the step b among the step a; Section steel beam wherein is connected on the lateral column wall of concrete-filled steel square tubular column; Promptly use bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Another root section steel beam is connected on the relative lateral column wall of concrete-filled steel square tubular column, promptly uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Then; Use carbon fibre bar pass respectively any one group of position over against fiber muscle through hole; Concerning any one section carbon fibre bar; It passes the path: wherein post jamb fiber muscle through hole on the angle steel fiber muscle through hole on section steel beam, the post jamb fiber muscle through hole on the lateral column wall, concrete-filled steel square tubular column chamber, the opposite side post jamb and the angle steel fiber muscle through hole on another root section steel beam; The two ends of carbon fibre bar are separately fixed at the angle steel fiber muscle through hole of corresponding end, the section steel beam of concrete-filled steel square tubular column both sides is carried out tractive fix.In this step, can be armor coated on carbon fibre bar, topping adopts resin base class water proof glue material, to reach better waterproof and decay resistance.In this step; Can use anchoring piece that it is carried out anchor connection respectively at the two ends of carbon fibre bar, anchoring piece can be selected steel bushing for use, steel bushing is enclosed within the two ends of one section carbon fibre bar respectively; Can apply a small amount of prestressing force this moment, adopts the mode of extruding to carry out radial compression formation anchor connection then.
Above-mentioned steps a can accomplish in steel work processing factory, can produce in batches, is transported to the building site then and assembles construction.
The relevant technologies content of not addressing in the aforesaid way is taked or is used for reference prior art and can realize.
Need to prove that those skilled in the art can also make such or such easy variation pattern under the instruction of this manual, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should be within protection scope of the present invention.
Claims (10)
1. the method for attachment of concrete-filled steel square tubular column and girder steel is characterized in that comprising the steps:
A prepares some i-shape steel beams; On the top flange of each section steel beam and bottom flange, a bugle steel is set respectively, a bugle steel is connected on the edge of a wing through carbon fibre bar, and two bugle steel are set on the web of each section steel beam, and two bugle steel are connected on the web through bolt; On a bugle steel, be provided for the angle steel fiber muscle through hole of tractive carbon fibre bar, the two bugle steel bolts hole that on two bugle steel, are provided for being connected with the post jamb of concrete-filled steel square tubular column;
B prepares some concrete-filled steel square tubular columns; On the post jamb of each concrete-filled steel square tubular column, offer the post jamb fiber muscle through hole of a corresponding above-mentioned bugle steel fibre muscle through hole and the post jamb bolt hole of corresponding above-mentioned two bugle steel bolts hole respectively; The post jamb fiber muscle number of openings of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical, and the position at corresponding, and corresponding one by one a pair of post jamb fiber muscle through hole place is just relative;
C chooses two i-shape steel beams and the concrete-filled steel square tubular column among the step b among the step a; Section steel beam wherein is connected on the lateral column wall of concrete-filled steel square tubular column; Promptly use bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Another root section steel beam is connected on the relative lateral column wall of concrete-filled steel square tubular column, promptly uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Then; With carbon fibre bar pass respectively any one group of position over against fiber muscle through hole; Concerning any one section carbon fibre bar; It passes the path: wherein post jamb fiber muscle through hole on the angle steel fiber muscle through hole on the side section steel beam, the post jamb fiber muscle through hole on the lateral column wall, concrete-filled steel square tubular column chamber, the opposite side post jamb and the angle steel fiber muscle through hole on the opposite side section steel beam; The two ends of carbon fibre bar are separately fixed at the angle steel fiber muscle through hole of corresponding end, the section steel beam of concrete-filled steel square tubular column both sides is carried out tractive fix.
2. the method for attachment of a kind of concrete-filled steel square tubular column according to claim 1 and girder steel; It is characterized in that: among the said step a; For one one bugle steel, be set up in parallel two or more angle steel fiber muscle through holes, use and carry out tractive for many carbon fibre bars and fix; And be set up in parallel two or more bugle steel bolts hole, in order to use many bolts one bugle steel is fixed on the girder steel edge of a wing.
3. the method for attachment of a kind of concrete-filled steel square tubular column according to claim 2 and girder steel; It is characterized in that: among the said step a, each section steel beam all is provided with two two bugle steel, lays respectively at the both sides of web; Each two bugle steel is respectively arranged with two group of two bugle steel bolt hole; Each is organized two bugle steel bolts hole and is two or more bolts hole arranged side by side, and wherein one group of two bugle steel bolt hole is used for being connected with post jamb, and another is organized two bugle steel bolts hole and is used for being connected with web.
4. the method for attachment of a kind of concrete-filled steel square tubular column according to claim 1 and girder steel; It is characterized in that: among the said step b; The post jamb number of bolt hole of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical; The position at corresponding, and corresponding one by one a pair of post jamb bolt hole place is just relative.
5. the method for attachment of a kind of concrete-filled steel square tubular column according to claim 1 and girder steel is characterized in that: armor coated on carbon fibre bar among the said step c, topping adopts resin base class water proof glue material.
6. the method for attachment of a kind of concrete-filled steel square tubular column according to claim 1 and girder steel is characterized in that: among the said step c, use anchoring piece that it is carried out anchor connection respectively at the two ends of carbon fibre bar.
7. the connected node of concrete-filled steel square tubular column and girder steel is characterized in that comprising a concrete-filled steel square tubular column, two i-shape steel beams and plurality of sections carbon fibre bar; On the top flange of each section steel beam and bottom flange, be respectively arranged with a bugle steel, a bugle steel is connected on the edge of a wing through bolt, and the web of each section steel beam is provided with two bugle steel, and two bugle steel are connected on the web through bolt; One bugle steel is provided with the angle steel fiber muscle through hole that is used for the tractive carbon fibre bar, and two bugle steel are provided with the two bugle steel bolts hole that are used for being connected with the post jamb of concrete-filled steel square tubular column; On the post jamb of each concrete-filled steel square tubular column, offer the post jamb fiber muscle through hole of corresponding above-mentioned angle steel fiber muscle through hole and the post jamb bolt hole of corresponding above-mentioned two bugle steel bolts hole respectively; The post jamb fiber muscle number of openings of on the relative both sides post jamb of concrete-filled steel square tubular column, offering is identical; The position at corresponding, and corresponding one by one a pair of post jamb fiber muscle through hole place is just relative; A section steel beam in above-mentioned two section steel beams is connected on the lateral column wall of concrete-filled steel square tubular column; It uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Another root section steel beam is connected on the relative lateral column wall of concrete-filled steel square tubular column, and it uses bolt that section steel beam is fixedly connected on the concrete-filled steel square tubular column through two bugle steel; Carbon fibre bar pass respectively any one group of position over against fiber muscle through hole; Concerning any one section carbon fibre bar; It passes the path: wherein post jamb fiber muscle through hole on the angle steel fiber muscle through hole on section steel beam, the post jamb fiber muscle through hole on the lateral column wall, concrete-filled steel square tubular column chamber, the opposite side post jamb and the angle steel fiber muscle through hole on another root section steel beam; The two ends of carbon fibre bar are separately fixed at the angle steel fiber muscle through hole of corresponding end, the section steel beam of concrete-filled steel square tubular column both sides is carried out tractive fix.
8. the connected node of a kind of concrete-filled steel square tubular column according to claim 7 and girder steel; It is characterized in that: the post jamb number of bolt hole of on the relative both sides post jamb of said concrete-filled steel square tubular column, offering is identical; The position at corresponding, and corresponding one by one a pair of post jamb bolt hole place is just relative.
9. the connected node of a kind of concrete-filled steel square tubular column according to claim 7 and girder steel is characterized in that: on said carbon fibre bar, be coated with topping, topping adopts resin base class water proof glue material to process.
10. the connected node of a kind of concrete-filled steel square tubular column according to claim 7 and girder steel is characterized in that: be respectively arranged with the anchoring piece that carries out anchor connection at the two ends of said carbon fibre bar.
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