CN101245668A - Construction method for two-side reinforcing engineering structure - Google Patents
Construction method for two-side reinforcing engineering structure Download PDFInfo
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- CN101245668A CN101245668A CNA2008100694498A CN200810069449A CN101245668A CN 101245668 A CN101245668 A CN 101245668A CN A2008100694498 A CNA2008100694498 A CN A2008100694498A CN 200810069449 A CN200810069449 A CN 200810069449A CN 101245668 A CN101245668 A CN 101245668A
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Abstract
The invention relates to a construction method for double-sided enhancement or reinforcement of the engineering structures, belonging to the technical field of enhancing or reinforcing the engineering structure through high-strength fibrous composites, which is characterized in that: holes are drilled on a surface of the enhanced or reinforced civil engineering structure, and longer screws are embedded in the holes to fix two pairs of wave-shaped gear-grip anchors at the same time, so that the high-strength fibrous composite sheets can be drawn and fixed by the anchors at the two sides of the engineering structure. The construction method for double-sided enhancement or reinforcement of the engineering structures has the advantages of definite and even stressing, simple path of force transfer, convenient construction and operation, high efficiency, improving the loading capacity of the civil engineering structures and extending the service life of the civil engineering structures, and is widely used in large-scale building structures of the civil engineering, especially in the construction, reconstruction and maintenance of the large-scale thin wall structures (like T-shaped beams, etc.).
Description
One, technical field
The invention belongs to the technical field that high strength fiber composite material strengthens or reinforce civil engineering structure, the job practices of particularly two-sided enhancing or stabilization works structure.
Two, background technology
Along with the development of builing industry, the needs of particularly heavy construction structure require civil engineering structure to have characteristics such as structure is slim and graceful, good rigidity, span ability is big, supporting capacity is strong.Having from heavy and light, intensity height, antifatigue, characteristic such as corrosion-resistant as high strength fibre composite materials such as carbon fibre reinforced plastic, high molecular polymer fibre reinforced plastics and glass fiber reinforced plastics, is to strengthen or reinforce ideal material as civil engineering structures such as steel work, wooden construction, concrete structures.The patentee's the patent No. be ZL02244587.0's " high strength composite waveform toothholder tool anchor " solved the difficult problem of the clamping and the anchoring of composite material sheet, can give full play to the premium properties of high strength composite, improve the supporting capacity of civil engineering structure, and improve the application life of structure.
In the enhancing or strengthening construction process of heavy construction structural element, normally high strength fibre composite sheet (as carbon fiber, aramid fiber, polybenzoxazole fibers, glass fiber, basalt fibre, the contour strength reinforcing material of high molecular polymerization fibres) is carried out prestressed stretch-draw and the surface (patent No. referring to the patentee is ZL02128047.9 " job practices of prestressing force stretching high strength composite material and anchoring ") that is anchored at member by waveform toothholder tool anchor.But enhancing or reinforcing for large thin-wall structure (as the tee girder in the bridge); in the actual work progress that carries out fixed waveform toothholder tool anchor; particularly when the time at the bigger bolt of tee girder bottom surface implanted diameter; can be subjected to the interference of main reinforcement at the bottom of the tee girder beam; because the main reinforcement of tee girder substantially all is distributed in the bottom surface of tee girder; make and when boring, be easy to the main reinforcement of damaging; because main reinforcement must obtain better protect; therefore must seek suitable bore position again; make operating efficiency very beneath, be unfavorable for applying of " job practices of prestressing force stretching high strength composite material and anchoring " patented technology.In addition, " job practices of prestressing force stretching high strength composite material and anchoring " patented technology is that the outer surface in engineering structures strengthens or reinforces, some is striden the thin wall construction (as the thin-walled box beam in the bridge) in footpath greatly, owing to needing to use more high strength fibre composite sheet to strengthen or reinforce, if only the outer surface at thin-walled strengthens or strengthening construction, because the prestressing force in the high strength fibre composite sheet is bigger, and be eccentric force, make that near thin wall construction local pressure fixing waveform toothholder tool anchor is very complicated, and be disadvantageous, if in thin wall construction, outer surface strengthens or the construction of reinforcing is carried out respectively, not only time-consuming, also to expend more anchor bolt, increase construction cost.
Three, summary of the invention
The objective of the invention is weak point at existing enhancing or stabilization works construction method, the job practices of a kind of two-sided enhancing or stabilization works structure is provided, has the simplification construction sequence, improve strengthening construction efficient height, once construction can strengthen the inside and outside surface of engineering structures or reinforce simultaneously, has reduced characteristics such as construction costs.
The object of the present invention is achieved like this: the job practices of a kind of two-sided enhancing or stabilization works structure, mainly be on arbitrary surface of the engineering structures that is enhanced or reinforces (as reinforced concrete structure, masonry structure, wooden construction etc.), to drill open-work, and implant long screw rod and fix two pairs of waveform toothholder tool anchors simultaneously, in order at stretch-draw of the two sides of engineering structures and anchoring high strength fibre composite sheet, its concrete construction sequence is as follows:
(1) the simultaneously affixed waveform tooth plate down in two sides
In the two ends of the engineering structures that is enhanced or reinforces and middle both side surface, anchor into or the following waveform tooth plate of the affixed waveform toothholder of method tool anchor such as embedding by bonding respectively accordingly, logarithm, shape and its spacing of affixed following waveform tooth plate are according to being enhanced or the concrete conditions such as surface size, shape and desired prestressed stretch-draw degree of stabilization works structure are determined.
(2) drill open-work and affixed screw rod
(1) step finish after, place, bolt hole position at every pair of affixed following waveform tooth plate, respectively the engineering structures that is enhanced or reinforces is drilled open-work, and in each through hole, insert screw rod, the two ends of screw rod are stretched out engineering structures respectively and are passed bolt hole corresponding on the affixed following waveform tooth plate in both sides, pour into bonded adhesives then in through hole screw rod is fixed on the engineering structures.
(3) tensioning and anchoring are carried out to the high strength fibre composite sheet two ends simultaneously in the two sides
(2) step finish after, earlier respectively on the wavy surface of a pair of affixed following waveform tooth plate of two sides, engineering structures two ends, brushing bonding agent respectively, again with after two carbon fibers or aramid fiber or polybenzoxazole fibers or glass fiber or basalt fibre or the tensioning of the contour strength composite material sheet of high molecular polymerization fibres, respectively its two ends are sticked on a pair of affixed following waveform tooth plate of two sides at engineering structures both ends, use the last waveform tooth plate of the waveform toothholder tool anchor of brushing bonding agent then, respectively by affixed screw rod and nut of (2) step, the following waveform tooth plate that is fixed in two sides, engineering structures two ends with (1) step is fixedlyed connected, and, be anchored at place, both ends, engineering structures both sides respectively and form two anchor points respectively carbon fiber or aramid fiber or polybenzoxazole fibers or glass fiber or the basalt fibre or the contour strength composite material sheet of high molecular polymerization fibres of engineering structures both sides.
(4) intermediate lateral stretch-draw and anchoring are carried out to high strength fibre composite sheet simultaneously in the two sides
(3) step finish after, on the wavy surface of elder generation's every pair of affixed following waveform tooth plate of two sides in the middle of engineering structures, brushing bonding agent respectively, and on the carbon fiber at the two ends of engineering structures two sides anchoring or aramid fiber or polybenzoxazole fibers or glass fiber or basalt fibre or the contour strength composite material sheet of high molecular polymerization fibres, soffit, brushing bonding agent respectively, use the last waveform tooth plate of the waveform toothholder tool anchor of brushing bonding agent then, respectively by affixed screw rod and nut of (2) step, the following waveform tooth plate that is fixed in the middle two sides of engineering structures with (1) step is fixedlyed connected, the carbon fiber at the two ends of engineering structures both sides anchoring or aramid fiber or polybenzoxazole fibers or glass fiber or basalt fibre or the contour strength composite material sheet of high molecular polymerization fibres are carried out intermediate lateral stretch-draw and anchoring, in order to two-sided enhancing or stabilization works structure, improve the bearing capacity of engineering structures.
(5) replenishing filling brushes bonding agent, rolls and natural Health preservation
(4) step finish after, be enhanced or stabilization works structure two sides the carbon fiber of stretch-draw and anchoring or aramid fiber or polybenzoxazole fibers or glass fiber or basalt fibre or the contour strength composite material sheet of high molecular polymerization fibres upper and lower surface and with the interface of engineering structures, replenish respectively and irritate brush bonding agent or impregnating resin, and roll the high strength fibre composite sheet of both sides respectively, it fully is immersed in the bonding agent, then natural Health preservation.
After the present invention adopts technique scheme, mainly contain following remarkable result:
1, the present invention is at the affixed waveform toothholder tool anchor in the bilateral symmetry ground of engineering structures, thereby make the engineering structures both sides stressed evenly, Path of Force Transfer is simple, clear and definite, reasonable, has reduced the difficulty of design and construction of the anchorage zone of waveform toothholder tool anchor on engineering structures, helps guaranteeing construction quality.
2, the present invention adopts the high strength composite sheet material of function admirable to strengthen symmetrically in the two sides of engineering structures or reinforces, thereby improved the bearing capacity of engineering structures widely, prolong its application life, be specially adapted to the enhancing or the reinforcing of large thin-wall structure, effect is remarkable especially.
3, adopt long bolt, by construction once just can affixed engineering structures two sides the job practices of two pairs of waveform toothholder tool anchors, simplified construction sequence, easy to operate, improved efficiency of construction, reduced construction cost.
The present invention can be widely used in newly-built, the reconstruction of large scale civil engineering building structure and safeguard, be specially adapted to large thin-wall structure (as tee girder etc.) newly-built, transform and reinforce maintenance.
Four, description of drawings
Fig. 1 is a construction schematic diagram of the present invention; Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the lateral view of Fig. 2; Fig. 4 is the construction schematic diagram of present embodiment 1;
Fig. 5 is the vertical view of Fig. 4; Fig. 6 is the side cutaway view of Fig. 4;
Fig. 7 is the construction schematic diagram of present embodiment 2; Fig. 8 is the side cutaway view of Fig. 7;
Fig. 9 is the vertical view of Fig. 7; Figure 10 is the construction schematic diagram of present embodiment 3;
Figure 11 is the A-A pseudosection of Figure 10.
Among the figure: waveform tooth plate on 1 screw rod, 2 nuts, 3,4 times waveform tooth plates, 5 high strength fibre composite sheets (being called for short the FRP sheet material), 6 engineering structuress, 7T ellbeam, 8 carbon fibre composite sheet materials (being called for short the CFRP sheet material), 9 prestressed reinforcements, 10 pine sides, 11 basalt fiber composite material sheet materials (being called for short the BFRP sheet material), 12 brick walls, 13 glass fiber compound material sheet materials (being called for short the GFRP sheet material)
Five, the specific embodiment
Below in conjunction with the specific embodiment, further specify the present invention.
Embodiment 1:
Shown in Fig. 4～6, a kind of be that 30 meters, height are 1.75 meters, web is thick with the two-sided reinforcing length of carbon fibre composite sheet material is the job practices of 0.18 meter reinforced T-beam engineering structures.
The length of tee girder 7 is 30 meters, 1.75 meters of deck-moldings, and thick 0.18 meter of web, this tee girder is a prestressed steel reinforced concrete beam, prestressed reinforcement 9 mainly is arranged in the horseshoe-shaped structure at the bottom of the tee girder beam.Because 20 grades of load standards of automobile are pressed in former design, supporting capacity can not satisfy the standard of super-20 grades of actual current automobile, need reinforce, and improves its bearing capacity.Scheme of Strengthening is that " job practices of prestressing force stretching high strength composite material and anchoring " of ZL02128047.9 carried out carbon fibre composite sheet material (being called for short the CFRP sheet material) when the prestressing force single face is reinforced at the bottom of the tee girder beam as if the employing patent No., owing to be distributed with 10 prestressed reinforcements that diameter is very thick at the bottom of the tee girder beam, also has a lot of nonprestressed reinforcements, obviously be easy to disturb with prestressed reinforcement and nonprestressed reinforcement at the bottom of the beam when holing bar planting fixed waveform toothholder tool anchor at the bottom of the beam, efficiency of construction is very low.For fear of main muscle of damage and raising constructing operation efficient, improve the supporting capacity of this tee girder again, adopt the concrete steps of job practices of the present invention as follows:
(1) the simultaneously affixed waveform tooth plate down in two sides
In the two ends of the web of tee girder 7 and middle both side surface, embed the following waveform tooth plate 4 of four pairs of waveform toothholder tool anchors accordingly respectively, and four following waveform tooth plates 4 in bolt hole homogeneous one correspondence of the following waveform tooth plate of web both sides, each side surface are on same straight line.
(2) drill open-work and affixed screw rod
(1) step finish after, place, bolt hole position at four pairs of following waveform tooth plates 4, respectively tee girder 7 is drilled open-work, the length in hole is 0.18 meter (promptly penetrating thick 0.18 meter web), in each through hole, insert length and be 300 millimeters, diameter and be 20 millimeters screw rod 1, the web of tee girder 7 is stretched out at the two ends of screw rod 1, and pass corresponding bolt hole on the fixing following waveform tooth plate 4 in web both sides, waveform tooth plate 4 outsides were 50 millimeters under the two ends of screw rod 1 was stretched out respectively, pour into bonded adhesives then in each through hole screw rod 1 is fixed on the web of tee girder 7.
(3) tensioning and anchoring are carried out to carbon fibre composite sheet material two ends simultaneously in the two sides
(2) step finish after, earlier respectively on the wavy surface of a pair of affixed following waveform tooth plate 4 at the two ends, two sides of tee girder 7 webs, brushing bonding agent respectively, again with after two CFRP sheet material 8 tensionings, respectively its two ends are sticked on a pair of affixed following waveform tooth plate 4 at both ends, two sides of tee girder 7, use the last waveform tooth plate 3 of the waveform toothholder tool anchor of brushing bonding agent then, respectively by affixed screw rod 1 and nut 2 of (2) step, the following waveform tooth plate 4 that is fixed in two sides, tee girder 7 web two ends with (1) step is fixedlyed connected, and the CFRP sheet material 8 of tee girder 7 web two sides is anchored at place, both ends, tee girder 7 two sides respectively and forms two anchor points respectively.
(4) intermediate lateral stretch-draw and anchoring are carried out to the carbon fibre composite sheet material simultaneously in the two sides
(3) step finish after, earlier on the wavy surface of the affixed following waveform tooth plate 4 of two couple of two sides in the middle of the tee girder 7, brushing bonding agent respectively, and on two CFRP sheet materials 8 at the two ends of tee girder 7 web two sides anchoring, soffit, brushing bonding agent respectively, use the last waveform tooth plate 3 of the waveform toothholder tool anchor of brushing bonding agent then, respectively by affixed screw rod 1 and nut 2 of (2) step, the following waveform tooth plate 4 that is fixed in the middle two sides of tee girder 7 webs with (1) step is fixedlyed connected, and with the two ends of the tee girder 7 web two sides CFRP sheet material 8 of anchoring, carry out intermediate lateral stretch-draw and anchoring, reach the purpose of two-sided reinforcing tee girder 7, improved the supporting capacity of tee girder 7.
(5) replenishing filling brushes bonding agent, rolls and natural Health preservation
(4) step finish after, on the upper and lower surface of the CFRP sheet material 8 of tee girder 7 two sides stretch-draw and anchoring and with the interface of tee girder 7, replenish respectively and irritate the brush bonding agent, and roll the CFRP sheet material 8 of two sides respectively, it fully is immersed in the bonding agent, then natural Health preservation.
After this strengthening construction is finished after the week, tee girder after the two-sided reinforcing 7 is carried out loading test and detection, the result is: the rigidity of this tee girder increases by 5% under normal service load, and supporting capacity can satisfy the class of loading of automobile super-20, satisfies the instructions for use under the new class of loading fully.
Embodiment 2:
Shown in Fig. 7～9, a kind of job practices with long 5 meters of the two-sided enhancing of basalt fiber composite material sheet material, wide 0.3 meter, thick 0.2 meter pine side's engineering structures.
In a lot of wooden construction, the timber of denser is commonly used for the rod member that bears pulling force, as the lower chord of timber truss structure.The pine side 10 of bearing pulling force is arranged, its length be 5 meters, wide be 0.3 meter, thick be 0.2 meter, according to using needs, must improve it and bear the ability of pulling force, employing can improve its resistance to tension in the method for its surperficial affixing steel plate, but the anticorrosion expense height of steel, difficult in maintenance, adopt method of the present invention,, can reach equally and improve its resistance to tension with basalt fiber composite material sheet material (being called for short the BFRP sheet material) 17 two-sided enhancing pine sides, and convenient, fast construction, in addition, the BFRP sheet material is corrosion-resistant, and the later maintenance expense is cheap.Adopt the concrete construction sequence of job practices of the present invention as follows:
(1) the simultaneously affixed waveform tooth plate down in two sides
With embodiment 1.Feature is: in the two ends of pine side 10 and middle upper and lower both side surface, and the following waveform tooth plate 4 of bonding accordingly three pairs of waveform toothholder tool anchors.
(2) drill open-work and standing screw
With embodiment 1.Feature is: the place, bolt hole position at three pairs of following waveform tooth plates 4, respectively pine side 10 is drilled open-work, and the length in hole is 200 millimeters (thick 200 millimeters of pine sides), screw rod 1 350 millimeters of length, 8 millimeters of diameters.
(3) tensioning and anchoring are carried out to basalt fiber composite material sheet material two ends simultaneously in the two sides
With embodiment 1.Feature is: after two BFRP sheet material 11 tensionings, respectively its two ends are sticked on a pair of affixed following waveform tooth plate 4 at both ends, two sides of pine side 10.
(4) intermediate lateral stretch-draw and anchoring are carried out to the basalt fiber composite material sheet material simultaneously in the two sides
With embodiment 1.Feature is: in the middle of the pine side 10 on the wavy surface of a pair of affixed following waveform tooth plate 4 of two sides, brushing bonding agent respectively, and in pine side two ends, 10 the two sides upper and lower surface of two BFRP sheet materials 11 of anchoring, brushing bonding agent respectively.
(5) replenishing filling brushes bonding agent, rolls and natural Health preservation
With embodiment 1.Feature is: on the upper and lower surface of two BFRP sheet materials 11 and with pine side 10 at the interface, replenish impregnating resin respectively.
After the construction of this enhancing pine side is finished, it is carried out loading test show that its resistance to tension improves 50%, can satisfy instructions for use.Adopt method of the present invention, very simple, quick to the enhancing or the strengthening construction of wooden construction, and cost is low, and the later maintenance expense is cheap.
Embodiment 3:
Shown in Figure 10,11, a kind of is 3200 millimeters, the job practices of wide 3000 millimeters, thick 240 millimeters brick wall engineering structures with the two-sided reinforcing height of glass fiber compound material sheet material.
In a lot of masonry structures (brickwork, masonry marshalling etc.), because service life is long or because masonry quality is relatively poor, a little less than the anti-seismic performance of masonry structure, need carry out seismic hardening.Existing whole brick wall need carry out seismic hardening, and it is of a size of high 3200 millimeters, and is wide 3000 millimeters, thick 240 millimeters.If adopt the external prestressing reinforcing bar to carry out seismic hardening, there are the anticorrosion of prestressed reinforcement and the high problem of later maintenance expense, adopt method of the present invention, can overcome this difficulty.Adopt the concrete construction sequence of job practices of the present invention as follows:
(1) the simultaneously affixed waveform tooth plate down in two sides
In two cornerwise two ends and centres of brick wall 12 both side surface, anchor into the following waveform tooth plate 4 of three pairs of waveform toothholder tool anchors respectively accordingly, brick wall 12 two sides two cornerwise bolt hole homogeneous one correspondences of waveform tooth plate 4 down.
(2) drill open-work and standing screw
With embodiment 1.Feature is: the bolt hole position at two cornerwise totally six pairs of following waveform tooth plates 4, respectively brick wall 12 is drilled open-work, and the length in hole is 240 millimeters (brick walls 12 thick 240 millimeters), the length of screw rod 1 is that 350 millimeters, diameter are 18 millimeters.
(3) tensioning and anchoring are carried out to glass fiber compound material sheet material two ends simultaneously in the two sides
With embodiment 1.Feature is: earlier respectively on the wavy surface of a pair of affixed following waveform tooth plate 4 in two cornerwise two ends, brick wall 12 two sides, brushing bonding agent respectively, with after four GFRP sheet material 13 tensionings, respectively its two ends are sticked on a pair of affixed following waveform tooth plate 4 at two cornerwise both ends, brick wall 12 two sides again.
(4) intermediate lateral stretch-draw and anchoring are carried out to the glass fiber compound material sheet material simultaneously in the two sides
With embodiment 1.Feature is: on the wavy surface of a pair of affixed following waveform tooth plate 4 in two cornerwise centres, brick wall 12 two sides, brushing bonding agent respectively, again at two diagonal two ends, the brick wall 12 two sides upper and lower surface of four GFRP sheet materials 13 of anchoring, brushing bonding agent respectively.
(5) replenishing filling brushes bonding agent, rolls and natural Health preservation
With embodiment 1.Feature is: on the upper and lower surface of four GFRP sheet materials 13 and with brick wall 12 at the interface, replenish impregnating resin respectively.
Owing to adopt 13 pairs of brick walls 12 of GFRP sheet material to apply prestressing force, and GFRP sheet material 13 can with brick wall 12 common co-ordinations, improved the shear resistance and the shock resistance of brick wall widely, and easy construction, and the later maintenance expense is low.
Claims (4)
1. the job practices of two-sided enhancing or stabilization works structure is characterized in that concrete construction sequence is as follows:
(1) the simultaneously affixed waveform tooth plate down in two sides
In the two ends of the engineering structures that is enhanced or reinforces (6) and middle both side surface, following waveform tooth plate (4) by the affixed waveform toothholder of the method that anchors into or embed tool anchor respectively accordingly, number, shape and its spacing of affixed following waveform tooth plate (4) are according to being enhanced or surface size, shape and the desired prestressed stretch-draw degree concrete condition of stabilization works structure (6) are determined;
(2) drill open-work and affixed screw rod
(1) step finish after, place, bolt hole position at every pair of affixed following waveform tooth plate (4), the engineering structures (6) that is enhanced or reinforces is drilled open-work, and in each through hole, insert screw rod (1), the two ends of screw rod (1) are stretched out engineering structures (6) respectively and are passed the affixed following waveform tooth plate (4) in both sides and go up corresponding bolt hole, by the method that pours into bonded adhesives in through hole screw rod (1) are fixed on the engineering structures (6);
(3) tensioning and anchoring are carried out to the high strength fibre composite sheet two ends simultaneously in the two sides
(2) step finish after, earlier respectively on the wavy surface of a pair of affixed following waveform tooth plate (4) of engineering structures (6) two sides, two ends, brushing bonding agent respectively, again with after two carbon fibers or aramid fiber or polybenzoxazole fibers or glass fiber or basalt fibre or high molecular polymer fiber high-strength degree fibre composite sheet (5) tensioning, respectively its two ends are sticked on a pair of affixed following waveform tooth plate (4) of two sides at engineering structures (6) both ends, use the last waveform tooth plate (3) of the waveform toothholder tool anchor of brushing bonding agent then, respectively by affixed screw rod (1) and nut (2) of (2) step, the following waveform tooth plate (4) that is fixed in engineering structures (6) two sides, two ends with (1) step is fixedlyed connected, and, be anchored at place, (6) two ends of engineering structures respectively with carbon fiber or aramid fiber or polybenzoxazole fibers or glass fiber or the basalt fibre or the high molecular polymer fiber high-strength degree fibre composite sheet (5) of engineering structures (6) both sides;
(4) intermediate lateral stretch-draw and anchoring are carried out to high strength fibre composite sheet simultaneously in the two sides
(3) step finish after, earlier on the wavy surface of every pair of affixed following waveform tooth plate (4) in the middle of engineering structures (6), brushing bonding agent respectively, and on the carbon fiber at the two ends on engineering structures (6) two sides anchoring or aramid fiber or polybenzoxazole fibers or glass fiber or basalt fibre or high molecular polymer fiber high-strength degree fibre composite sheet (5), soffit, brushing bonding agent respectively, use the last waveform tooth plate (3) of the waveform toothholder tool anchor of brushing bonding agent then, respectively by affixed screw rod (1) and nut (2) of (2) step, the following waveform tooth plate (4) that is fixed in the middle two sides of engineering structures (6) with (1) step is fixedlyed connected, and, carry out intermediate lateral stretch-draw and anchoring with the two ends of engineering structures (6) both sides carbon fiber or aramid fiber or polybenzoxazole fibers or glass fiber or the basalt fibre or the high molecular polymer fiber high-strength degree fibre composite sheet (5) of anchoring;
(5), replenishing filling brushes bonding agent, rolls and natural Health preservation
(4) step finish after, be enhanced or stabilization works structure (6) two sides the carbon fiber of stretch-draw and anchoring or aramid fiber or polybenzoxazole fibers or glass fiber or basalt fibre or high molecular polymer fiber high-strength degree fibre composite sheet (5) upper and lower surface and with the interface of engineering structures (6), replenish respectively and irritate brush bonding agent or impregnating resin, and roll the high strength fibre composite sheet of both sides, natural Health preservation then respectively.
2. according to the job practices of described two-sided enhancing of claim 1 or stabilization works structure, it is characterized in that a kind of with the two-sided reinforcing length of carbon fibre composite sheet material be 30 meters, height be 1.75 meters, web thick be that 0.18 meter the concrete steps of reinforced T-beam engineering structures job practices are as follows:
(1) the simultaneously affixed waveform tooth plate down in two sides
With claim 1, feature is: in the two ends of tee girder (7) web and middle both side surface, embed the following waveform tooth plate (4) of four pairs of waveform toothholder tool anchors accordingly;
(2) drill open-work and standing screw
With claim 1, feature is: the place, bolt hole position at four pairs of following waveform tooth plates (4), respectively tee girder (7) is drilled open-work, and the length in hole is 180 millimeters, long 300 millimeters of screw rod (1), 20 millimeters of diameters, waveform tooth plate (4) outside was 50 millimeters under the two ends of screw rod (1) was stretched out respectively;
(3) tensioning and anchoring are carried out to carbon fibre composite sheet material two ends simultaneously in the two sides
With claim 1, feature is: after two CFRP sheet materials (8) tensioning, respectively its two ends are sticked on a pair of affixed following waveform tooth plate (4) at both ends, two sides of tee girder (7);
(4) intermediate lateral stretch-draw and anchoring are carried out to the carbon fibre composite sheet material simultaneously in the two sides
With claim 1, feature is: on the wavy surface of the affixed following waveform tooth plate (4) of two couple of the middle two sides of tee girder (7), brushing bonding agent respectively, and at the upper and lower surface of two CFRP sheet materials (8) at both ends, tee girder (7) web two sides anchoring, brushing bonding agent respectively;
(5) replenishing filling brushes bonding agent, rolls and natural Health preservation
With claim 1, feature is: on the upper and lower surface of the CFRP sheet material (8) of tee girder (7) two sides stretch-draw and anchoring and with the interface of tee girder (7), replenish respectively and irritate the brush bonding agent.
3. according to the job practices of described two-sided enhancing of claim 1 or stabilization works structure, it is characterized in that a kind of concrete steps with long 5 meters of the two-sided enhancing of basalt fiber composite material sheet material, wide 0.3 meter, thick 0.2 meter pine side's engineering structures job practices are as follows:
(1) the simultaneously affixed waveform tooth plate down in two sides
With claim 1, feature is: in the two ends of pine side (10) and middle upper and lower both side surface, and the following waveform tooth plate 4 of bonding accordingly three pairs of waveform toothholder tool anchors;
(2) drill open-work and standing screw
With claim 1, feature is: the place, bolt hole position at three pairs of following waveform tooth plates (4), respectively pine side (10) are drilled open-work, and the length in hole is 200 millimeters, long 350 millimeters of screw rod (1), 8 millimeters of diameters, waveform tooth plate (4) outside was 50 millimeters under the two ends of screw rod (1) was stretched out respectively;
(3) tensioning and anchoring are carried out to basalt fiber composite material sheet material two ends simultaneously in the two sides
With claim 1, feature is: after two BFRP sheet materials (11) tensioning, respectively its two ends are sticked on a pair of affixed following waveform tooth plate (4) at both ends, two sides of pine side (10);
(4) intermediate lateral stretch-draw and anchoring are carried out to the basalt fiber composite material sheet material simultaneously in the two sides
With claim 1, feature is: on the wavy surface of a pair of affixed following waveform tooth plate (4) of pine side (10) middle two sides, brushing bonding agent respectively, and in pine side (10) both ends, the two sides upper and lower surface of two BFRP sheet materials (11) of anchoring, brushing bonding agent respectively;
(5) replenishing filling brushes bonding agent, rolls and natural Health preservation
With claim 1, feature is: on the upper and lower surface of two BFRP sheet materials (11) and with pine side (10) at the interface, replenish impregnating resin respectively.
4. according to the job practices of described two-sided enhancing of claim 1 or stabilization works structure, it is characterized in that a kind of is that 3200 millimeters, the concrete steps of the job practices of wide 3000 millimeters, thick 240 millimeters brick wall engineering structures are as follows with the two-sided reinforcing height of glass fiber compound material sheet material:
(1) the simultaneously affixed waveform tooth plate down in two sides
In two cornerwise two ends and centres of brick wall (12) both side surface, anchor into the following waveform tooth plate (4) of three pairs of waveform toothholder tool anchors respectively accordingly, brick wall (12) two sides two cornerwise bolt hole homogeneous one correspondences of waveform tooth plate (4) down;
(2) drill open-work and standing screw
With claim 1, feature is: in two cornerwise bolt hole positions of totally six pairs of following waveform tooth plates (4), respectively brick wall (12) is drilled open-work, the length in hole is 240 millimeters, the length of screw rod (1) is that 350 millimeters, diameter are 18 millimeters, and the two ends of screw rod (1) is stretched out down 50 millimeters in waveform tooth plate (4) outside respectively;
(3) tensioning and anchoring are carried out to glass fiber compound material sheet material two ends simultaneously in the two sides
With claim 1, feature is: earlier respectively on the wavy surface of a pair of affixed following waveform tooth plate (4) in two cornerwise two ends, brick wall (12) two sides, brushing bonding agent respectively, with after four GFRP sheet materials (13) tensioning, respectively its two ends are sticked on a pair of affixed following waveform tooth plate (4) at two cornerwise both ends, brick wall (12) two sides again;
(4) intermediate lateral stretch-draw and anchoring are carried out to the glass fiber compound material sheet material simultaneously in the two sides
With claim 1, feature is: on the wavy surface of a pair of affixed following waveform tooth plate (4) in two cornerwise centres, brick wall (12) two sides, brushing bonding agent respectively, again at two diagonal two ends, brick wall (12) the two sides upper and lower surface of four GFRP sheet materials (13) of anchoring, brushing bonding agent respectively;
(5) replenishing filling brushes bonding agent, rolls and natural Health preservation
With claim 1, feature is: on the upper and lower surface of four GFRP sheet materials (13) and with brick wall (12) at the interface, replenish impregnating resin respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100694498A CN101245668A (en) | 2008-03-11 | 2008-03-11 | Construction method for two-side reinforcing engineering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100694498A CN101245668A (en) | 2008-03-11 | 2008-03-11 | Construction method for two-side reinforcing engineering structure |
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| CN101929250A (en) * | 2010-09-01 | 2010-12-29 | 中南大学 | Method for applying pre-stress to fiber sheet by using multiple parallel rods |
| CN101929253A (en) * | 2010-09-01 | 2010-12-29 | 中南大学 | Method for anchoring fiber sheet by using parallel double rods |
| CN102003080A (en) * | 2010-11-24 | 2011-04-06 | 北京市建筑设计研究院 | Anti-seismic reinforcing structure and method of old brickwork building |
| CN102235095A (en) * | 2010-04-30 | 2011-11-09 | 卓清 | Preparation method of fiber reinforced polymer sheet |
| CN102605966A (en) * | 2012-03-20 | 2012-07-25 | 中冶建筑研究总院有限公司 | Method for reinforcing concrete structure |
| CN103195255A (en) * | 2013-03-29 | 2013-07-10 | 华北水利水电学院 | Construction method for prestressed carbon-fiber reinforced plastic (CFRP) reinforced concrete beam |
| CN103786382A (en) * | 2013-12-13 | 2014-05-14 | 深圳大学 | Method for reinforcing and protecting concrete through inorganic adhesive fiber composite material |
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| CN105839944A (en) * | 2016-05-23 | 2016-08-10 | 清华大学 | Anti-seismic strengthening device for reinforced concrete frame structure |
| CN106639354A (en) * | 2017-01-10 | 2017-05-10 | 武汉理工大学 | Method for reinforcing concrete beam shear-bearing capacity of steel plate and pre-stressed carbon fiber cloth |
| CN108331365A (en) * | 2018-02-01 | 2018-07-27 | 中原工学院 | A kind of profiled sheet reinforced steel concrete floor method |
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| CN102235095A (en) * | 2010-04-30 | 2011-11-09 | 卓清 | Preparation method of fiber reinforced polymer sheet |
| CN102235095B (en) * | 2010-04-30 | 2013-03-27 | 卓清 | Preparation method of fiber reinforced polymer sheet |
| CN101929253A (en) * | 2010-09-01 | 2010-12-29 | 中南大学 | Method for anchoring fiber sheet by using parallel double rods |
| CN101929250A (en) * | 2010-09-01 | 2010-12-29 | 中南大学 | Method for applying pre-stress to fiber sheet by using multiple parallel rods |
| CN102003080A (en) * | 2010-11-24 | 2011-04-06 | 北京市建筑设计研究院 | Anti-seismic reinforcing structure and method of old brickwork building |
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| CN102605966A (en) * | 2012-03-20 | 2012-07-25 | 中冶建筑研究总院有限公司 | Method for reinforcing concrete structure |
| CN102605966B (en) * | 2012-03-20 | 2016-06-08 | 中冶建筑研究总院有限公司 | A kind of method of reinforced concrete structure |
| CN103195255B (en) * | 2013-03-29 | 2015-07-15 | 华北水利水电学院 | Construction method for prestressed carbon-fiber reinforced plastic (CFRP) reinforced concrete beam |
| CN103195255A (en) * | 2013-03-29 | 2013-07-10 | 华北水利水电学院 | Construction method for prestressed carbon-fiber reinforced plastic (CFRP) reinforced concrete beam |
| CN103786382A (en) * | 2013-12-13 | 2014-05-14 | 深圳大学 | Method for reinforcing and protecting concrete through inorganic adhesive fiber composite material |
| CN103786383A (en) * | 2013-12-13 | 2014-05-14 | 深圳大学 | Fibrous composite reinforcing ceramic plate and manufacturing method thereof |
| CN105839944A (en) * | 2016-05-23 | 2016-08-10 | 清华大学 | Anti-seismic strengthening device for reinforced concrete frame structure |
| CN105839944B (en) * | 2016-05-23 | 2018-01-16 | 清华大学 | Anti-seismic strengthening device for reinforced concrete frame structure |
| CN106639354A (en) * | 2017-01-10 | 2017-05-10 | 武汉理工大学 | Method for reinforcing concrete beam shear-bearing capacity of steel plate and pre-stressed carbon fiber cloth |
| CN106639354B (en) * | 2017-01-10 | 2018-12-18 | 武汉理工大学 | The method of steel plate and prestressed carbon cloth reinforced beams of concrete shear-carrying capacity |
| CN108331365A (en) * | 2018-02-01 | 2018-07-27 | 中原工学院 | A kind of profiled sheet reinforced steel concrete floor method |
| CN108331365B (en) * | 2018-02-01 | 2021-02-23 | 中原工学院 | Method for reinforcing reinforced concrete floor by profiled steel sheet |
| CN109779290A (en) * | 2019-01-21 | 2019-05-21 | 哈尔滨工业大学 | A kind of dismounting brick masonry wall piece prestressed anchor clamping method |
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Application publication date: 20080820 |