CN105239787A - Full-assembled concrete frame reinforcing apparatus and construction method thereof - Google Patents
Full-assembled concrete frame reinforcing apparatus and construction method thereof Download PDFInfo
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- CN105239787A CN105239787A CN201510543455.2A CN201510543455A CN105239787A CN 105239787 A CN105239787 A CN 105239787A CN 201510543455 A CN201510543455 A CN 201510543455A CN 105239787 A CN105239787 A CN 105239787A
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Abstract
The invention discloses a full-assembled concrete frame reinforcing apparatus and a construction method thereof. The full-assembled concrete frame reinforcing apparatus comprises steel channels, steel angles, tie bolts, chemical bolts and lacing bars. The cross section of the steel channels is approximately U shaped, and an end of each steel channel is bent out, forming a flange portion with which steel channel lateral faces are provided with through holes; the steel angles are fixedly connected with the steel channels; the cross section of the steel angles is approximately L shaped, and lateral ribs are provided with lugs; the tie bolts penetrate through holes in the flange portions to fixedly connect the adjacent steel channels; two ends of each lacing bar are fixed to the lugs of the adjacent steel angles, respectively. In the above scheme, prefabrication is suited to the steel channels, the steel angles and the like, full bolt assembly is carried out in situ, construction efficiency is high, and a construction site is highly civilized; the ends of the steel channels are clamping functional, so that a concrete column is stressed from three directions and compression resistance of the concrete column can be given to full play.
Description
Technical field
The invention belongs to building engineering field, especially repair or reinforce device or the method for existing building structure.
Background technology
The reinforcement and repair built breakage after strong earthquakes is an engineering problem urgently to be resolved hurrily.Current have several traditional reinforcement means, comprises Enlargement of Section, external template and Covered with Angles method.
But existing method also exists some defects, such as efficiency of construction is low, synergisticing performance is poor.
Summary of the invention
Goal of the invention a: object is to provide a kind of complete spliced concrete frame bracing means, to solve the problems referred to above that prior art exists.Further object is to provide the construction method of above-mentioned complete spliced concrete frame bracing means.
Technical scheme: a kind of complete spliced concrete frame bracing means, comprising:
Channel-section steel, its cross section is roughly in Qian shape, and end faces outwards bends, and forms lip portions, this lip portions and channel-section steel side are provided with through hole;
Angle steel, is fixedly connected with described channel-section steel, and the cross section of angle steel is substantially L-shaped, and side rib is provided with otic placode; Be preferably welding;
Screw arbor with nut at both-ends, through the through hole in lip portions, is fixedly connected with adjacent channel-section steel;
Lacing, two 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 with in the through hole of channel-section steel side.Described angle steel is L45 ~ L75 type equal leg angle.Described channel-section steel is Q345 steel hot rolling shaped steel.Described chemical anchor bolts are M20 type high strength chemical drift bolt.
The making of above-mentioned complete spliced concrete frame bracing means and construction method, comprise the steps:
Step 1. makes channel-section steel and angle steel, and at the lip portions of channel-section steel and lateral opening hole;
Otic placode is welded on angle steel by step 2., channel-section steel and angle splice joint is welded;
Step 3. pair component carries out assembled in advance, adjustment bore size and distortion;
Step 4. is by the assembled both sides to treating reinforced column of precast monolithic of channel-section steel and angle steel;
Screw arbor with nut at both-ends through the through hole in channel-section steel lip portions, is screwed Screw arbor with nut at both-ends from post two ends to intermediate symmetry by step 5.;
Step 6. installs lacing;
Step 7. squeezes into chemical bolt: treating perforate on reinforced concrete column, clear hole by the through hole of channel-section steel side, implants sebific duct, inserting bolt, fastening external nut after time of setting to be achieved, touch-up paint process.
Adopt the method for above-mentioned complete spliced concrete frame bracing means reinforced concrete column, comprise the steps:
The precast monolithic be made up of channel-section steel and angle steel symmetry is assembled in the both sides of concrete column by step 1.;
Step 2. installs Screw arbor with nut at both-ends and lacing;
Chemical anchor bolts are squeezed in concrete column by the through hole of channel-section steel side by step 3..
Beneficial effect: in such scheme, channel-section steel and angle steel etc. can prefabricatedly be produced, and full bolt splicing is carried out at scene, and efficiency of construction is high, and job site civilization degree is high; Channel-section steel has clamping action in end, makes concrete column three dimension stress, can give full play to the anti-pressure ability of concrete column; Further, the shear connections of chemical anchor bolts makes steel work and concrete jointly stressed, and have combined effect, synergisticing performance is good.
Accompanying drawing explanation
Fig. 1 is the perspective view of channel-section steel.
Fig. 2 is the perspective view of angle steel.
Fig. 3 is the assembled design sketch of bracing means pre-erection.
Fig. 4 is the structural representation that bracing means is implemented on concrete column.
Fig. 5 is the cross-sectional view that bracing means is implemented on concrete column.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, first embodiment of the present invention is introduced.
In this embodiment, complete spliced concrete frame bracing means mainly comprises channel-section steel 1, angle steel 4, Screw arbor with nut at both-ends 2, chemical anchor bolts 3 and lacing 5, and its position as shown in Figure 3.In this embodiment, for convenience, in the cavity being used for coated concrete column in channel-section steel is called, on the other side be called outside.
Forward Fig. 1 to, specifically describe the shape of channel-section steel.Its cross section of channel-section steel is roughly in Qian shape, and end faces outwards bends, and forms lip portions, this lip portions and channel-section steel side are provided with through hole 1b.Lip portions is parallel to the axis of channel-section steel, and when channel-section steel is fixed on concrete column, lip portions is along the longitudinal extension of concrete column, and its effect is similar to flange, for being fixedly connected with adjacent channel-section steel.The two, through the through hole on adjacent channel-section steel, is fixedly connected with by Screw arbor with nut at both-ends.
Forward Fig. 2 to, describe the structure of angle steel.Angle steel 4 is fixedly connected with described channel-section steel, and the cross section of angle steel is substantially L-shaped, side rib is provided with otic placode 6.Otic placode can be formed at the side rib of angle steel by one-body molded, welding or excision redundance.In this embodiment, a side rib of angle steel is provided with an otic placode, another side rib is evenly provided with three otic placodes.Be positioned at middle otic placode setting concordant with the otic placode on another side rib.Otic placode has through hole.
As shown in Figure 3, can be fixing by channel-section steel, angle steel and otic placode etc. in workshop, make prefabricated component.In this embodiment, otic placode is welded on angle steel, and the two ends of angle steel are welded with channel-section steel respectively.The shape of two prefabricated components is identical, when two blocks of prefabricated component mirror images are placed, forms the overall structure in the middle of with holding part.
Composition graphs 4 and Fig. 5 describe the connected mode of each parts.In a further embodiment, adjacent channel-section steel, through the through hole in lip portions, is fixedly connected with by Screw arbor with nut at both-ends 2; The two ends of lacing 5 are individually fixed on the otic placode of adjacent angle steel, such as, weld or be spirally connected, being preferably spirally connected.Described angle steel is L45 ~ L75 type equal leg angle.Described channel-section steel is Q345 steel hot rolling shaped steel.Described chemical anchor bolts are M20 type high strength chemical drift bolt.Chemical anchor bolts 3 are connected with in the through hole of channel-section steel side.
As shown in Figure 5, adopt the method for above-mentioned complete spliced concrete frame bracing means reinforced concrete column, comprise the steps:
The precast monolithic be made up of channel-section steel and angle steel symmetry is assembled in the both sides of concrete column by step 1.;
Step 2. installs Screw arbor with nut at both-ends and lacing;
Chemical anchor bolts are squeezed in concrete column by the through hole of channel-section steel side by step 3..
Further, complete making and work progress as follows:
Step 1. makes channel-section steel and angle steel, and at the lip portions of channel-section steel and lateral opening hole;
Otic placode is welded on angle steel by step 2., channel-section steel and angle splice joint is welded;
Step 3. pair component carries out assembled in advance, adjustment bore size and distortion;
Step 4. is by the assembled both sides to treating reinforced column of precast monolithic of channel-section steel and angle steel;
Screw arbor with nut at both-ends through the through hole in channel-section steel lip portions, is screwed Screw arbor with nut at both-ends from post two ends to intermediate symmetry by step 5.;
Step 6. installs lacing;
Step 7. squeezes into chemical bolt: treating perforate on reinforced concrete column, clear hole by the through hole of channel-section steel side, implants sebific duct, inserting bolt, fastening external nut after time of setting to be achieved, touch-up paint process.
Project case one
In this embodiment, bracing means is made up of end channel-section steel, Screw arbor with nut at both-ends, chemical anchor bolts, middle part angle steel and lacing etc.End channel-section steel is Q345 steel hot rolling shaped steel, end clod wash 90 ° tilting.Offering the hole for installing chemical anchor bolts in advance at the acra of channel-section steel, offering the hole for installing Screw arbor with nut at both-ends at the place of bending up.The Inner edge minor face width of each end channel-section steel is equal with the outsourcing width of post, long hem width degree 50mm shorter in the half of the long hem width degree of post, there is the space of 100mm after namely installing between pair of end portions channel-section steel.
Screw arbor with nut at both-ends diameter is 25 ~ 35mm, and on the channel-section steel of end, spacing 150mm installs.After Screw arbor with nut at both-ends screws, the concrete column at middle part clamps by the end channel-section steel of both sides, produces extrusion effect, makes concrete reach three dimension stress state, improve concrete anti-pressure ability.
Chemical anchor bolts are M20 type high strength chemical drift bolt.The axial compression that concrete bears by chemical anchor bolts passes to end channel-section steel with shearing form, thus makes to realize stress redistribution between reinforcing steel work and the concrete column of inside, produces combined effect, improves bending resistance and the Lateral resisting ability of post.
Middle part angle steel is L45 ~ 75 type equal leg angles, and thickness is equal with end channel-section steel, and the upper, middle and lower of angle steel are welded with and connect otic placode for connecting lacing.End of the present invention channel-section steel and middle part angle steel adopt butt weld to be connected in factory, are made as two panels entirety in advance.
The installation process of this embodiment is: the precast monolithic symmetry of end channel-section steel and middle part angle steel is assembled in the both sides for the treatment of reinforced concrete column; Screw arbor with nut at both-ends is installed; Lacing is installed; By the reserving hole of end channel-section steel, chemical anchor bolts are squeezed in concrete column.
Prefabrication process: component number material perforate: according to being reinforced the size of post to the perforate of the steel beam column number of carrying out material, the length of end channel-section steel and middle part angle steel is be reinforced column length 1/3.The size of weld seam to be taken into full account when number material cuts and weld the shrinkage strain caused.Eliminate rust and carry out Fireproof antirust process.
Member Welding: otic placode is welded on middle part angle steel on after on moulding bed by end channel-section steel and the assembled welding of middle part angle steel.
Component is assembled in advance: before dispatching from the factory, tackle component carry out assembled in advance, adjustment bore size and distortion.
On-the-spot splicing:
By the assembled both sides to treating reinforced column of precast monolithic of end channel-section steel and middle part angle steel; End channel-section steel penetrates Screw arbor with nut at both-ends, screws Screw arbor with nut at both-ends from post two ends to intermediate symmetry; Lacing is installed.
Squeeze into chemical anchor bolts: by hole perforate on concrete column that end channel-section steel is offered in advance; Clear hole; Implant sebific duct; Inserting bolt; Fastening external nut after band reaches time of setting.
Carry out touch-up paint process and extraneous adornment.
Because seismic load is lateral inertia forces effect, often post component damage is relatively more serious, and the destruction of post concentrates on the end of post, is damaged lighter in the middle part of post.Utilize channel-section steel to clamp styletable, and middle part adopt angle steel to carry out bracing reinforcement, steel not only can be made reasonably to be utilized, and the effect of contraction of channel-section steel can give full play to the bearing capacity of inner concrete post.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple equivalents to technical scheme of the present invention, these equivalents all belong to protection scope of the present invention.
Claims (7)
1. a complete spliced concrete frame bracing means, is characterized in that, comprising:
Channel-section steel (1), its cross section is roughly in Qian shape, and end faces outwards bends, and forms lip portions, this lip portions and channel-section steel side are provided with through hole (1b);
Angle steel (4), is fixedly connected with described channel-section steel, and the cross section of angle steel is substantially L-shaped, side rib is provided with otic placode (6);
Screw arbor with nut at both-ends (2), through the through hole in lip portions, is fixedly connected with adjacent channel-section steel;
Lacing (5), two ends are individually fixed on the otic placode of adjacent angle steel.
2. complete spliced concrete frame bracing means as claimed in claim 1, is characterized in that, be connected with chemical anchor bolts (3) in the through hole of channel-section steel side.
3. complete spliced concrete frame bracing means as claimed in claim 1 or 2, is characterized in that, described angle steel is L45 ~ L75 type equal leg angle.
4. complete spliced concrete frame bracing means as claimed in claim 1 or 2, is characterized in that, described channel-section steel is Q345 steel hot rolling shaped steel.
5. complete spliced concrete frame bracing means as claimed in claim 2, is characterized in that, described chemical anchor bolts are M20 type high strength chemical drift bolt.
6. the making of the complete spliced concrete frame bracing means described in any one of claim 2 to 5 and construction method, is characterized in that, comprise the steps:
Step 1. makes channel-section steel and angle steel, and at the lip portions of channel-section steel and lateral opening hole;
Otic placode is welded on angle steel by step 2., channel-section steel and angle splice joint is welded;
Step 3. pair component carries out assembled in advance, adjustment bore size and distortion;
Step 4. is by the assembled both sides to treating reinforced column of precast monolithic of channel-section steel and angle steel;
Screw arbor with nut at both-ends through the through hole in channel-section steel lip portions, is screwed Screw arbor with nut at both-ends from post two ends to intermediate symmetry by step 5.;
Step 6. installs lacing;
Step 7. squeezes into chemical bolt: treating perforate on reinforced concrete column, clear hole by the through hole of channel-section steel side, implants sebific duct, inserting bolt, fastening external nut after time of setting to be achieved, touch-up paint process.
7. adopt the method for complete spliced concrete frame bracing means reinforced concrete column according to claim 1, it is characterized in that, comprise the steps:
The precast monolithic be made up of channel-section steel and angle steel symmetry is assembled in the both sides of concrete column by step 1.;
Step 2. installs Screw arbor with nut at both-ends and lacing;
Chemical anchor bolts are squeezed in concrete column by the through hole of channel-section steel side by step 3..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510543455.2A CN105239787B (en) | 2015-08-28 | 2015-08-28 | Complete spliced concrete frame bracing means and its construction method |
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| CN201510543455.2A CN105239787B (en) | 2015-08-28 | 2015-08-28 | Complete spliced concrete frame bracing means and its construction method |
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| CN105239787A true CN105239787A (en) | 2016-01-13 |
| CN105239787B CN105239787B (en) | 2018-08-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715069A (en) * | 2016-03-22 | 2016-06-29 | 武汉大学 | Method for rapidly reinforcing reinforced concrete eccentric loading column |
| 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 |
| CN108442950A (en) * | 2018-03-09 | 2018-08-24 | 中国矿业大学(北京) | A kind of " U-shaped steel holder " Dam Foundation Strengthened in Situ method |
| 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 |
| CN113585794A (en) * | 2021-04-08 | 2021-11-02 | 河南征信建筑工程有限公司 | Reinforced concrete structure column reinforcing structure and method |
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| 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715069A (en) * | 2016-03-22 | 2016-06-29 | 武汉大学 | Method for rapidly reinforcing reinforced concrete eccentric loading column |
| CN105715069B (en) * | 2016-03-22 | 2017-09-29 | 武汉大学 | A kind of method of rapid reinforcement Reinforced Concrete Columns |
| CN108442950A (en) * | 2018-03-09 | 2018-08-24 | 中国矿业大学(北京) | A kind of " U-shaped steel holder " Dam Foundation Strengthened in Situ method |
| 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 |
| CN113585794A (en) * | 2021-04-08 | 2021-11-02 | 河南征信建筑工程有限公司 | Reinforced concrete structure column reinforcing structure and method |
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| CN105239787B (en) | 2018-08-21 |
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