CN105239787B - Complete spliced concrete frame bracing means and its construction method - Google Patents
Complete spliced concrete frame bracing means and its construction method Download PDFInfo
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- CN105239787B CN105239787B CN201510543455.2A CN201510543455A CN105239787B CN 105239787 B CN105239787 B CN 105239787B CN 201510543455 A CN201510543455 A CN 201510543455A CN 105239787 B CN105239787 B CN 105239787B
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Abstract
The invention discloses a kind of complete spliced concrete frame bracing means and its construction methods, wherein, the complete spliced concrete frame bracing means includes channel steel, angle steel, Screw arbor with nut at both-ends, chemical bolt and lacing, the cross section of channel steel is substantially in Qian shape, end faces outwards are bent, lip portions are formed, through-hole is provided on the lip portions and channel steel side；Angle steel is fixedly connected with the channel steel, and the cross section of angle steel is substantially L-shaped, and otic placode is provided on side rib；Screw arbor with nut at both-ends passes through the through-hole in lip portions, and adjacent channel steel is fixedly connected；The both ends of lacing are individually fixed on the otic placode of adjacent angle steel.In said program, channel steel and angle steel etc. prefabricated can produce, and scene carries out full bolt splicing, and construction efficiency is high, and construction site civilization degree is high；Channel steel has clamping action in end so that concrete column three dimension stress can give full play to the anti-pressure ability of concrete column.
Description
Technical field
The invention belongs to building engineering fields, especially repair or reinforce the device or method of existing building structure.
Background technology
It is an engineering problem urgently to be resolved hurrily to the reinforcement and repair of breakage building after strong earthquakes.Currently have several traditional
Reinforcement means, including Enlargement of Section, external template and Covered with Angles method.
But there is also some defects, such as low construction efficiency, synergisticing performance difference etc. for existing method.
Invention content
Goal of the invention：One purpose is to provide a kind of complete spliced concrete frame bracing means, to solve the prior art
The existing above problem.Further objective is that providing the construction method of above-mentioned complete spliced concrete frame bracing means.
Technical solution：A kind of complete spliced concrete frame bracing means, including：
Channel steel, cross section are substantially in Qian shape, and end faces outwards are bent, formation lip portions, in the lip portions and channel steel side
It is provided with through-hole；
Angle steel is fixedly connected with the channel steel, and the cross section of angle steel is substantially L-shaped, and otic placode is provided on side rib；Preferably
Welding；
Screw arbor with nut at both-ends passes through the through-hole in lip portions, adjacent channel steel is fixedly connected；
Lacing, both ends are individually fixed on the otic placode of adjacent angle steel and (are preferably spirally connected).
In a further embodiment, chemical anchor bolts are connected in the through-hole of channel steel side.The angle steel is L45 ~ L75 types
Equal leg angle.The channel steel is Q345 steel hot rolling shaped steel.The chemical anchor bolts are M20 type high strength chemical drift bolts.
The making of above-mentioned complete spliced concrete frame bracing means and construction method, include the following steps：
Step 1. makes channel steel and angle steel, and in the lip portions and lateral opening hole of channel steel；
Otic placode is welded on angle steel by step 2., and channel steel and angle splice joint are welded；
Step 3. carries out preassembling to component, adjusts bore size and deformation；
Step 4. is by the prefabricated integral assembling of channel steel and angle steel to the both sides for waiting for reinforced column；
Screw arbor with nut at both-ends is passed through the through-hole in channel steel lip portions by step 5., is screwed from column both ends to intermediate symmetry to drawing spiral shell
Bar；
Step 6. installs lacing；
Step 7. squeezes into chemical bolt：The trepanning on waiting for reinforced concrete column by the through-hole of channel steel side, borehole cleaning are planted
Entering glue pipe is inserted into bolt, and external nut, touch-up paint processing are fastened after setting time to be achieved.
Using the method for above-mentioned complete spliced concrete frame bracing means reinforced concrete column, include the following steps：
The prefabricated integrated symmetric being made of channel steel and angle steel is assembled in the both sides of concrete column by step 1.；
Step 2. installs Screw arbor with nut at both-ends and lacing；
Step 3. is squeezed into chemical anchor bolts in concrete column by the through-hole of channel steel side.
Advantageous effect：In said program, channel steel and angle steel etc. prefabricated can produce, and scene carries out full bolt splicing, applies
Work is efficient, and construction site civilization degree is high；Channel steel has clamping action in end so that concrete column three dimension stress, it can
Give full play to the anti-pressure ability of concrete column；Further, the shear connections of chemical anchor bolts make steel construction and concrete common
Stress has combined effect, synergisticing performance good.
Description of the drawings
Fig. 1 is the dimensional structure diagram of channel steel.
Fig. 2 is the dimensional structure diagram of angle steel.
Fig. 3 is the assembled design sketch of bracing means pre-erection.
Fig. 4 is the structural schematic diagram that bracing means is implemented on concrete column.
Fig. 5 is the cross-sectional view that bracing means is implemented on concrete column.
Specific implementation mode
As shown in Figure 1, Figure 2 and Figure 3, one embodiment of the present invention is introduced.
In this embodiment, complete spliced concrete frame bracing means include mainly channel steel 1, angle steel 4, Screw arbor with nut at both-ends 2,
Chemical anchor bolts 3 and lacing 5, position is as shown in Figure 3.In this embodiment, for convenience, it will be used to coat in channel steel
It is on the other side referred to as outer in the cavity of concrete column is known as.
Fig. 1 is gone to, the shape of channel steel is specifically described.Its cross section of channel steel is substantially in Qian shape, and end faces outwards bending is formed
It is provided with through-hole 1b on lip portions, the lip portions and channel steel side.Lip portions are parallel to the central axes of channel steel, when channel steel is fixed on
When concrete column, lip portions are longitudinally extended along concrete column, and effect is similar to flange, for being fixedly connected with adjacent slot
Steel.Screw arbor with nut at both-ends passes through the through-hole on adjacent channel steel, and the two is fixedly connected.
Fig. 2 is gone to, the structure of angle steel is described.Angle steel 4 is fixedly connected with the channel steel, and the cross section of angle steel is substantially L-shaped,
Otic placode 6 is provided on side rib.Otic placode can be formed in the side rib of angle steel by integrated molding, welding or excision redundance.
In this embodiment, setting is uniformly arranged that there are three otic placodes there are one otic placode on a side rib of angle steel on another side rib.Position
It is arranged in intermediate otic placode is concordant with the otic placode on another side rib.Through-hole is provided on otic placode.
As shown in figure 3, can be fixed by channel steel, angle steel and otic placode etc. in workshop, make prefabricated component.In this embodiment,
Otic placode is welded on angle steel, and the both ends of angle steel are welded with channel steel respectively.The shape of two prefabricated components is identical, when two pieces of prefabricated component mirrors
When as placing, being formed among one has the overall structure of holding part.
The connection type of each component is described in conjunction with Fig. 4 and Fig. 5.In a further embodiment, Screw arbor with nut at both-ends 2 passes through flange
Adjacent channel steel is fixedly connected by the through-hole in portion；The both ends of lacing 5 are individually fixed on the otic placode of adjacent angle steel, such as are welded
It connects or is spirally connected, be preferably spirally connected.The angle steel is L45 ~ L75 type equal leg angles.The channel steel is Q345 steel hot rolling shaped steel.Institute
It is M20 type high strength chemical drift bolts to state chemical anchor bolts.Chemical anchor bolts 3 are connected in the through-hole of channel steel side.
As shown in figure 5, using the method for above-mentioned complete spliced concrete frame bracing means reinforced concrete column, including such as
Lower step：
The prefabricated integrated symmetric being made of channel steel and angle steel is assembled in the both sides of concrete column by step 1.；
Step 2. installs Screw arbor with nut at both-ends and lacing；
Step 3. is squeezed into chemical anchor bolts in concrete column by the through-hole of channel steel side.
Further, complete making and work progress are as follows：
Step 1. makes channel steel and angle steel, and in the lip portions and lateral opening hole of channel steel；
Otic placode is welded on angle steel by step 2., and channel steel and angle splice joint are welded；
Step 3. carries out preassembling to component, adjusts bore size and deformation；
Step 4. is by the prefabricated integral assembling of channel steel and angle steel to the both sides for waiting for reinforced column；
Screw arbor with nut at both-ends is passed through the through-hole in channel steel lip portions by step 5., is screwed from column both ends to intermediate symmetry to drawing spiral shell
Bar；
Step 6. installs lacing；
Step 7. squeezes into chemical bolt：The trepanning on waiting for reinforced concrete column by the through-hole of channel steel side, borehole cleaning are planted
Entering glue pipe is inserted into bolt, and external nut, touch-up paint processing are fastened after setting time to be achieved.
Project case one
In this embodiment, bracing means is by groups such as end channel steel, Screw arbor with nut at both-ends, chemical anchor bolts, middle part angle steel and lacings
At.End channel steel is Q345 steel hot rolling shaped steel, 90 ° of tiltings of end clod wash.It is opened up in advance in the acra of channel steel and is used for installationization
The hole for learning anchor bolt, the hole for installing Screw arbor with nut at both-ends is opened up at the place of bending up.The Inner edge short side width of each end channel steel with
The outsourcing width of column is equal, and long hem width degree is shorter 50mm than the half of the long hem width degree of column, that is, is deposited between a pair of end portions channel steel after installing
In the gap of 100mm.
A diameter of 25~the 35mm of Screw arbor with nut at both-ends, spacing 150mm is installed on the channel steel of end.After Screw arbor with nut at both-ends screws, both sides
End channel steel the concrete column at middle part is clamped, generate extrusion effect so that concrete reaches three dimension stress state, improves
The anti-pressure ability of concrete.
Chemical anchor bolts are M20 type high strength chemical drift bolts.Chemical anchor bolts transmit the axis pressure that concrete is born in the form of shearing
End channel steel is given, stress redistribution is realized so that reinforcing between steel construction and the concrete column of inside, generates combined effect,
Improve bending resistance and the Lateral resisting ability of column.
Middle part angle steel is the type equal leg angles of L45~75, and thickness is equal with end channel steel, and the upper, middle and lower of angle steel are welded with connection
Otic placode is for connecting lacing.End channel steel of the present invention is connect in factory using butt weld with middle part angle steel, prefabricated
For two panels entirety.
The installation process of the embodiment is：The prefabricated integrated symmetric of end channel steel and middle part angle steel is assembled in wait reinforcing and is mixed
The both sides of solidifying earth pillar；Screw arbor with nut at both-ends is installed；Lacing is installed；Chemical anchor bolts are squeezed into concrete by the reserving hole of end channel steel
In column.
Prefabrication process：Component number expects trepanning：According to being reinforced the size of column to steel member into line number material trepanning, end
The length of channel steel and middle part angle steel is be reinforced column length 1/3.Size and the welding of weld seam are fully considered when number material is cut
Caused contraction distortion.It derusts and carries out Fireproof antirust processing.
Member Welding：End channel steel and middle part angle steel assembly are welded on moulding bed after otic placode is welded on the angle steel of middle part
It connects.
Component preassembling：Preassembling should be carried out to component, adjust bore size and deformation before manufacture.
Live splicing：
By the prefabricated integral assembling of end channel steel and middle part angle steel to the both sides for waiting for reinforced column；It is penetrated on the channel steel of end pair
Screw rod is drawn, Screw arbor with nut at both-ends is screwed from column both ends to intermediate symmetry；Lacing is installed.
Squeeze into chemical anchor bolts：Pass through the hole trepanning on concrete column opened up in advance on the channel steel of end；Borehole cleaning；It is implanted into glue
Pipe；It is inserted into bolt；Band fastens external nut after reaching setting time.
Carry out touch-up paint processing and extraneous adornment.
Since earthquake load is transverse inertia force effect, often column component damage is than more serious, and the destruction of column concentrates on
The end of column, column middle part are damaged relatively light.Styletable is clamped using channel steel, and middle part is supported reinforcing using angle steel,
Can not only steel be made to be reasonably utilized, but also the effect of contraction of channel steel can give full play to the pressure-bearing of inner concrete column
Ability.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of equivalents to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little equivalents all belong to the scope of protection of the present invention.
Claims (2)
1. the construction method of complete spliced concrete frame bracing means, which is characterized in that the complete spliced concrete frame
Bracing means, including：
Channel steel (1), cross section are substantially in Qian shape, and end faces outwards bending forms lip portions, set on the lip portions and channel steel side
It is equipped with through-hole (1b)；
Angle steel (4), is fixedly connected with the channel steel, and the cross section of angle steel is substantially L-shaped, and otic placode (6) is provided on side rib；
Screw arbor with nut at both-ends (2) passes through the through-hole in lip portions, adjacent channel steel is fixedly connected；
Lacing (5), both ends are individually fixed on the otic placode of adjacent angle steel；
It is connected with chemical anchor bolts in the through-hole of channel steel side；The angle steel is L45~L75 type equal leg angles；The channel steel is
Q345 steel hot rolling shaped steel；The chemical anchor bolts are M20 type high strength chemical drift bolts；
Described method includes following steps：
Step 1. makes channel steel and angle steel, and in the lip portions and lateral opening hole of channel steel；
Otic placode is welded on angle steel by step 2., and channel steel and angle splice joint are welded, and channel steel is connect with angle steel using butt weld；
Step 3. carries out preassembling to component, adjusts bore size and deformation；
Step 4. is by the prefabricated integral assembling of channel steel and angle steel to the both sides for waiting for reinforced column；
Screw arbor with nut at both-ends is passed through the through-hole in channel steel lip portions by step 5., and Screw arbor with nut at both-ends is screwed from column both ends to intermediate symmetry；
Step 6. installs lacing；
Step 7. squeezes into chemical bolt：The trepanning on waiting for reinforced concrete column by the through-hole of channel steel side, borehole cleaning are implanted into glue
Pipe is inserted into bolt, and external nut, touch-up paint processing are fastened after setting time to be achieved.
2. using the method for complete spliced concrete frame bracing means reinforced concrete column, which is characterized in that the spelling connects
Formula concrete frame bracing means, including：
Channel steel (1), cross section are substantially in Qian shape, and end faces outwards bending forms lip portions, set on the lip portions and channel steel side
It is equipped with through-hole (1b)；
Angle steel (4), is fixedly connected with the channel steel, and the cross section of angle steel is substantially L-shaped, and otic placode (6) is provided on side rib；
Screw arbor with nut at both-ends (2) passes through the through-hole in lip portions, adjacent channel steel is fixedly connected；
Lacing (5), both ends are individually fixed on the otic placode of adjacent angle steel；
It is connected with chemical anchor bolts in the through-hole of channel steel side；The angle steel is L45~L75 type equal leg angles；The channel steel is
Q345 steel hot rolling shaped steel；The chemical anchor bolts are M20 type high strength chemical drift bolts；Channel steel is welded with angle splice joint, channel steel and angle
Steel is connected using butt weld；
Described method includes following steps：
The prefabricated integrated symmetric being made of channel steel and angle steel is assembled in the both sides of concrete column by step 1.；
Step 2. installs Screw arbor with nut at both-ends and lacing；
Step 3. is squeezed into chemical anchor bolts in concrete column by the through-hole of channel steel side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543455.2A CN105239787B (en) | 2015-08-28 | 2015-08-28 | Complete spliced concrete frame bracing means and its construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543455.2A CN105239787B (en) | 2015-08-28 | 2015-08-28 | Complete spliced concrete frame bracing means and its construction method |
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| Publication Number | Publication Date |
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| CN105239787A CN105239787A (en) | 2016-01-13 |
| CN105239787B true CN105239787B (en) | 2018-08-21 |
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| CN201510543455.2A Expired - Fee Related CN105239787B (en) | 2015-08-28 | 2015-08-28 | Complete spliced concrete frame bracing means and its construction method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715069B (en) * | 2016-03-22 | 2017-09-29 | 武汉大学 | A kind of method of rapid reinforcement Reinforced Concrete Columns |
| CN108442950B (en) * | 2018-03-09 | 2020-01-07 | 中国矿业大学(北京) | In-situ reinforcement method for U-shaped steel bracket |
| CN108360837A (en) * | 2018-03-14 | 2018-08-03 | 成都理工大学 | A kind of bracing means, concrete strengthening structure and confined concrete reinforcement means |
| CN109518880A (en) * | 2019-01-24 | 2019-03-26 | 沈阳建筑大学 | A kind of batten plate formula cold bending thin wall ladder type section lattice steel column |
| CN113585794B (en) * | 2021-04-08 | 2023-03-31 | 河南征信建筑工程有限公司 | Reinforced concrete structure column reinforcing structure and method |
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|---|---|---|---|---|
| JPH09143927A (en) * | 1995-11-17 | 1997-06-03 | J R Higashi Nippon Shoji:Kk | Column reinforcing metal piece |
| JP2000054646A (en) * | 1998-08-04 | 2000-02-22 | Mitsui Constr Co Ltd | Device for reinforcing concrete columnar body |
| US6167672B1 (en) * | 1997-04-24 | 2001-01-02 | Nippon Steel Corporation | Supplementary reinforcing construction for a reinforced concrete pier |
| JP5107805B2 (en) * | 2008-06-23 | 2012-12-26 | 芦森工業株式会社 | Columnar body reinforcement structure and method of reinforcement |
| CN204098522U (en) * | 2014-09-18 | 2015-01-14 | 安徽天筑建设（集团）有限公司 | A kind of crack reinforced concrete post maintenance and reinforcement structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0978849A (en) * | 1995-09-13 | 1997-03-25 | Mitsui Toatsu Chem Inc | Reinforcing material of column and production thereof |
| JP4157855B2 (en) * | 2004-05-25 | 2008-10-01 | 大友 誠一 | Seismic reinforcement structure for utility poles |
| JP4278056B2 (en) * | 2004-08-26 | 2009-06-10 | 東日本旅客鉄道株式会社 | Seismic reinforcement structure of concrete structure and its construction method |
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2015
- 2015-08-28 CN CN201510543455.2A patent/CN105239787B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09143927A (en) * | 1995-11-17 | 1997-06-03 | J R Higashi Nippon Shoji:Kk | Column reinforcing metal piece |
| US6167672B1 (en) * | 1997-04-24 | 2001-01-02 | Nippon Steel Corporation | Supplementary reinforcing construction for a reinforced concrete pier |
| JP2000054646A (en) * | 1998-08-04 | 2000-02-22 | Mitsui Constr Co Ltd | Device for reinforcing concrete columnar body |
| JP5107805B2 (en) * | 2008-06-23 | 2012-12-26 | 芦森工業株式会社 | Columnar body reinforcement structure and method of reinforcement |
| CN204098522U (en) * | 2014-09-18 | 2015-01-14 | 安徽天筑建设（集团）有限公司 | A kind of crack reinforced concrete post maintenance and reinforcement structure |
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| CN105239787A (en) | 2016-01-13 |
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