CN1164846A - Apparatus and method for reinforcing vertical columns - Google Patents
Apparatus and method for reinforcing vertical columns Download PDFInfo
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- CN1164846A CN1164846A CN95194911A CN95194911A CN1164846A CN 1164846 A CN1164846 A CN 1164846A CN 95194911 A CN95194911 A CN 95194911A CN 95194911 A CN95194911 A CN 95194911A CN 1164846 A CN1164846 A CN 1164846A
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- Prior art keywords
- column
- equipment
- reinforcement material
- actuating device
- vertical
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0006—Electric heating elements or system
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
- B65H81/06—Covering or wrapping elongated cores
- B65H81/08—Covering or wrapping elongated cores by feeding material obliquely to the axis of the core
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G23/0225—Increasing or restoring the load-bearing capacity of building construction elements of circular building elements, e.g. by circular bracing
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2292—Holders used for protection, repair or reinforcement of the post or pole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/066—Movable chambers, e.g. collapsible, demountable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D2099/0058—Means for heating the charge locally
Abstract
An apparatus (30) for reinforcing an external surface of a stationary vertical column (20) with a reinforcing material (61) includes a supply (60) of the reinforcing material and a guide (62) that directs the reinforcing material from the supply (60) onto the stationary vertical column. A winding device moves the guide in a spiral pattern relative to the stationary vertical column, to wind spiral layers of the reinforcing material onto the vertical column. The winding device is provided as a multipart structure that may be assembled around the vertical column and later disassembled to permit removal from around the vertical column. In one approach, the reinforcing material is tows of a curable composite material that are wound onto the vertical column and later cured in place after the winding device is removed.
Description
Background of invention
The present invention relates to the reinforcing of vertical columns, relate in particular to the earthquake-proof reinforcing of bridge column and similar post.
Recently, earthquake that adds livre Buddhist nun Asia and the certificate of destruction that causes thus needs reduce the susceptibility of road to seismic interference.This destruction may be taken place in a variety of forms, but the most dangerous and potential destructive a kind of form is arranged most is the reduction of bridge intensity and/or collapse.
Most of bridges can be regarded the decking that have being supported by long and thin column as.The earthquake that adds livre Buddhist nun Asia shows: the support column of building before 1971 does not have enough horizontal ring-type reinforcing bars, therefore may occur phenomenons such as horizontal distortion, connecting portion fracture or warpage under their end load effect.These support columns build up around the steel structure placing concrete of central authorities usually.Concrete ductility is not enough.If the intensity of seismic activity is enough big, then can make concrete rupture and fall, make the residual fraction of pillar be in the load of increase.Bar construction pressurized and destroying then, or the destruction of shearing or disconnecting appears in the point of connection of column and other parts.
Multiple research has confirmed that the periphery reinforcing of vertical support column can improve the ability of their antiseismic destruction.External reinforcement provides an oversheath ideally around column, make cement concrete be constrained, even also horizontal destruction can not occur under fierce load.This reinforcing both can be finished when column begins to build, also can carry out when existing structure is transformed.
Outside transversely strengthening for vertical support column has been studied multiple means, but these defectiveness all.Since a variety of causes, the problem that adds an intrinsic difficulty of the column of vertical fixed structure.These columns generally all are large volumes, so manual or common feasible simple small-scale technology is not all right.When transforming, ruggedized equipment can't slide on the top of column.Column can not rotate, and therefore, can not use the reinforcement technique of the aircraft industry that is applied to make big tubular construction.
Therefore, need a kind of reinforce long be basically vertical, cross over improving one's methods of column in structure and some building such as being based upon express highway.This method is convenient feasible in practice, can also form a covered structure, makes the node that can not occur being damaged too early in seismic activity.The present invention has satisfied this demand, and has corresponding advantages.
Brief summary of the invention
The invention provides a kind of equipment, this equipment is used for reinforcing the supporting upright post that is based upon in express highway structure, some building structures and the bridge pier supporting.This method can provide an outer constraint overplate, and its structural behaviour can controlledly change in a big scope by selecting material and manufacturing process.Outer cover be by long, be that fiber continuous, that be embedded in the cured matrix is formed basically, fiber is oriented to column with a selectable angle.
In order to reach maximum intensity and degree of containing, the continuity of fiber needs.The control reinforcing member allows controlling packet content on technology with respect to the ability of column angle.Especially, for many for adapting to the situation that earthquake is transformed, make reinforcing member almost a very little helical angle of circular-oriented needs because it can make the degree of containing of column reach maximum, and make it vertically strengthen reaching minimum.Do not have long seam vertical or other direction, often it is the fragile root of destroying for they.The winding thickness of reinforcing member can change, and winding can be that bevelled is concentrated to eliminate stress.The intensity of final ruggedized construction and ductility are high.
Even long, large diameter column, equipment of the present invention also can with strictness control, repeatably this reinforcing member is set thereon with accurate way.Finish reinforcing with the material (a uniaxialprepreg material) of the pre-preg of a single shaft rather than with wet layup (wet layup).Reinforcing member has consistent performance, quality control is simple, because the manufacturing of the material of automation, automated performance and the pre-preg of the equipment of layup (layup) is carried out under in check factory condition, so fairly be uniformly and be high.The healthhazard relevant with the wet layup technology, chaotic dirt and process variability are non-existent.Composite material at high temperature solidifies to reach high strength.Because it is very little that pollute the workyard, so the work progress compliance with environmental protection requirements.
According to the present invention, equipment with the outside face of a reinforcement material reinforcing vertical columns comprises: the reinforcement material feeding mechanism, reinforcement material is directed to the guide piece on the fixing column and is used to make guide piece with the wind of a helical pattern with respect to the vertical columns motion from feeding mechanism.Wind comprises a multicomponent structure, and this structural group is contained in around the column, takes apart then and takes off from column.
Correlation method with a reinforcement material reinforcing vertical columns outside face comprises step: assemble a Wiring apparatus around vertical columns; Twine the multilayer reinforcement material on the outside face of column, each layer has the reinforcement material of helical pattern; Take Wiring apparatus apart and it is taken away from vertical columns.
Preferable reinforcement material is a kind of such as graphite/epoxy resin but not limited composite material.Equipment is ideally suited for twining material or the graphite fiber that uncured graphite-epoxy resin preimpregnation is handled with a helical pattern on column.In this case, the feeding mechanism of supply reinforcement material comprises the composite material of a plurality of pre-preg or the bobbin of lamination coating band bundle.When twining beginning, pull out material from bobbin, and accurately be directed to winding place.Should be careful, with on the column surface with the band bundle of side by side mode marshalling.
When reinforcement material was a kind of curable composite material, equipment comprised that also heating is wrapped in the heating arrangement of the reinforcement material on the column.After on having finished winding work and column, pulling down Wiring apparatus, re-use this heating arrangement.Place temperature booster around column, make the body portion of temperature booster work with the composite material of cure curable.Heater mat, lamp, burner type radiation heater or other heating arrangement that is suitable for all can use.
The present invention is to having made major contribution from the technology of externally reinforced big, fixing column.The column Wiring apparatus is transported to the column scene with the loose mail form, with several individuals generally be three people it be placed on column around and assemble up.With a style of determining, degree of automation highly, promptly begins to twine column, has formed the processing of an economy by a controollable guide.Reinforcing member can adapt to any specific situation.For example, the spiral winding angle and the pitch of may command reinforcing member where necessary, in some cases, the reinforcing member that needs different-thickness in the top and the bottom of column, dissimilar reinforcing members is arranged among same column, or the different reinforcing members that twine style are arranged in same column.Because the reinforcing member structure is to make at the scene of each column traditionally, the engineer can be that each column formulates the reinforcing member structure, and does not need to bear the relevant sizable expense of the longer schedule time (cycle of delivering goods from ordering goods to) with predetermined reinforcing member part and structure.Sensor can be imbedded in the reinforcing member, to monitor reinforcing member and the column below it.
Below in conjunction with accompanying drawing preferred embodiment is described in detail, makes other features and advantages of the present invention clearer, come casehistory principle of the present invention by example.
Brief Description Of Drawings
Fig. 1 is the front view of big, the fixing vertical support column of a bridge;
Fig. 2 is the view of first direction of an embodiment that twines the present device of reinforcing member around the column;
Fig. 3 is the view of the second direction of equipment shown in Figure 2;
Fig. 4 is the birds-eye view of equipment shown in Figure 2;
Fig. 5 a is the birds-eye view that is used for the reinforcing member guide of described equipment;
Fig. 5 b is the lateral plan of a typical roller guide;
Fig. 6 one is used for the scheme drawing of the control piece of the inventive method;
Fig. 7 is the front view that a column is wound with the composite material part;
Fig. 8 is the front view of a column, illustrate be wrapped on the column, in order to the heat packs coating and the insulating barrier of cured composite material reinforcing member;
Fig. 9 one has the birds-eye view of radiation heater with the column that is wound of cured composite material reinforcing member;
Figure 10 is the block flow diagram of the inventive method;
Figure 11 is the birds-eye view that is used for a basis of second embodiment of the invention, and the embodiment shown in the figure is in the open position to be assembled on the column;
Figure 12 is the birds-eye view on basis shown in Figure 11, and shown is is assembled to situation after the column;
Figure 13 is the birds-eye view on basis shown in Figure 12, and shown is the situation of working when twining column;
Figure 14 is the front view of a kind of vertical drive system;
Figure 15 is the front view of second kind of vertical drive system;
Figure 16 is the front view of the third vertical drive system; And
Figure 17 is a schematic top plan view, and it illustrates one and is wound with the column of doing reinforced fibers and add polymeric material when twining.
The detailed description of preferred embodiment
Fig. 1 illustrates a vertical columns 20 that is based upon on the base of imbedding ground 22.The last end bearing of column 20 decking 24.The present invention is used to strengthen column 20, makes it to have the reinforcement material that multi-layer helical twines.Column 20 is gone up and is formed in a central steel structure (cannot see) by concrete depositing.Column 20 can be of different sizes, and specifically decides on using.In the ordinary course of things, the diameter of column 20 is about 1-1/2 to 8 foot, and height is 8 to 80 feet.
Fig. 2,3 and 4 is respectively three views of a Wiring apparatus 30 that are used for twining spirally the encapsulated layer of reinforcement material on column 20.Equipment 30 comprises a basis 32, and it is made up of two semicircle spares 34 that can be combined into annular arrangement basis 32.Two semicircle spares normally transport with the state that separates, and assemble around column 20 at the construction field (site) then.Each semicircle spare 34 has a flange 36 in the opposite end of its circumference, pass flange 36 with bolt two semicircle spares 34 are coupled together.Basis 32 is bearing on the leg 37, and the length of leg 37 can be adjusted by jack, so that regulate the level on basis.
One swivel mount 38 is bearing on the basis 32.Be provided with one first actuating device with around basis 32 circumferencial direction driven in rotation frame 38.Can use the actuating device of any practicality.In one embodiment, first actuating device comprises first guide rail 40 that a lower surface that centers on basis 32 extends.Swivel mount 38 radial surface outwardly comprises a gear 42, represents with cutaway drawing in Fig. 2. Gear 42 and 40 engagements of first guide rail.One first electrical motor 44 is arm revolving gear 42 controllably, and swivel mount 38 is rotatablely moved at circumferencial direction 46 formation or cw or C.C.W., can select the rotative speed of swivel mount 38 by the speed of first electrical motor 44.
One vertical rod 48 vertically is installed on the swivel mount 38.Vertical rod 48 preferably is mounted to the inboard that is positioned at circular foundation 32 internal diameters.Vertical rod 48 both can extend on demand near ground, can extend to necessary height again, so that allow reinforcing member twine on the whole or selected part of column 20.By the corresponding sports of swivel mount 38 aforementioned manner, vertical rod 48 can be around the whole circumference motion on basis 32.
One vertical rack 50 is bearing on the vertical rod 48.Make vertical rack 50 along vertical rod 48 last or following moving by one second actuating device.The actuating device of available any practicality.Among the embodiment shown in the figure, second actuating device comprises second guide rail 52 that extends in the face of a side of column 20 along vertical rod 48 inwardly. Vertical rack 50 and 52 engagements of second guide rail.One chain or belt 54 extend between two bogie wheels 56, and one in the bogie wheel at the top of vertical rod 48, and another is in the bottom of vertical rod 48.One second electrical motor 58 is in the rotating support wheel 56 controllably, and shown in the figure is the upper support wheel, with controllably drive in vertical direction vertical rack 50 on or move the speed of selecting vertical rack 50 to move by the speed of second electrical motor 58 down.Make things convenient for the in service of form one, first electrical motor 44 and second electrical motor 58 move with a fixing speed ratio, thereby can keep a selected winding pitch when reinforcement material is wrapped on the column.
The supporting member 60 of reinforcement material 61 is set in equipment 30.Preferably, supporting member 60 comprises that at least one is bearing in the rotating drum 62 of the reinforcement material on the upright position of fixing by vertical rod 48.In a model machine 30 of being made by the contriver, vertical rod 48 is supporting the reel of six reinforcement materials, and each side of vertical rod 48 has three reels.
One guide frame 64 is bearing on the vertical rack 50.The function of guide frame 64 be reinforcement material from supporting member 60 being that tangential Direction guide is to column 20, as shown in Figure 4 basically.The perpendicular movement of guide frame 64 depends on the motion of vertical rack 50, and circular movement depends on the motion of swivel mount 38.
Fig. 5 a and 5b illustrate the guide frame 64 of a preferred versions.Shown in Fig. 5 a, this guide frame 64 comprises a plurality of roller type guides 66 and a guide pipe 68, and they are directed to column 20 to the band bundle that moves from supporting member 60 to reinforcement material band Shu Dingxiang.Each roller type guide 66 comprises that the enough rollers of quantity are with at desired Direction guide reinforcement material band bundle 61.The general type of roller type guide 66 is as described in Fig. 5 b.Roller type guide 66 comprises a roller 66 ' that is directed at least, so that reinforcement material 61 can pass through it.In the general shape of the roller type guide 66 shown in Fig. 5 b, four rollers 66 ' are arranged, so that provide guiding for the reinforcement material 61 of any orientation and position.
One end 69 of guide pipe 68 is near the surface of columns 20, is preferably within about 2 inches of column 20.The combination of roller type guide 66 and their arrangement thereof and guide pipe 68 ends 69 cooperatively interact near the degree of columns 20, make many reinforcement material band bundles 61 be wrapped in the surface of column 20 with form closely.That is, in illustrated embodiment, six a little smooth band bundles of process are placed on the surface of column 20 abreast simultaneously.The preferable carbon fiber/epoxy resin band bundle of a little smooth mistake, its width of every is about 0.11 inch, and the overall width that makes six band bundles place the broadband of formation simultaneously is about 0.68 inch.
In equipment 30, two semicircle spares 34, vertical rod 48 and the electrical motor 44 on basis 32 are to provide with independent member, and they can be combined around column 20 easily.This unitization design-calculated purpose is for the maximum weight that makes any member reaches minimum, makes several individuals use a light hoisting gear just can finish the work of transportation and assembling.Be applicable to that cooling diameter reaches in 4 feet, the prototype equipment 30 up to 25 feet columns, the weight of single-piece member does not have one to surpass 350 pounds.Therefore, three personal light hoisting gears just can be finished the work of transportation and assembling.
Fig. 6 shows the control system of equipment 30, and this control system is uncomplicated.The reinforcing member that equipment 30 provides the spiral shown in Fig. 2 and 7 to twine.Important basic controlling parameter be the spiral direction up or down of advancing, each circle of spiral as shown in Figure 7 with respect to the horizontal plane ascending angle A and the pitch P between each circle.Pitch P is the distance of the center to center between each circle.As previously mentioned, a control method is to keep the fixed speed ratio of electrical motor 44 and 58, makes to twine pitch and have nothing to do with speed of wrap and remain unchanged.
The direction of having selected the moving direction (up or down) of vertical rack 50 just to determine spiral to advance (for example A with respect to the horizontal plane is positive or negative).Fig. 2 shows by moving and the situation of the ground floor reinforcing member that spiral twines that vertical rack 50 makes progress.Vertical rack arrives the top of its stroke, moves down conversely again.The reinforcing member that second layer spiral twines is in the outside of ground floor, and the direction of advancing is (negative angle A) down.The hand of rotation of swivel mount 38 also can be in the change between cw and the conter clockwise, but does not do so generally speaking.The rotation direction of swivel mount 38 generally remains unchanged in the whole winding process of a column.
The size of angle A is directly by the relative velocity of the vertical shifting of vertical rack 50 and the velocity of rotation control of swivel mount 38.The vertical shifting speed of vertical rack 50 is very fast with respect to the speed of swivel mount 38, and then angle A is bigger.Pitch P depends on the absolute velocitye of vertical shifting of vertical rack 50 and the diameter of column 20.
Therefore, hand of spiral, angle A and pitch P can control by the kinematic velocity that changes vertical rack 50 and swivel mount 38.These kinematic velocitys are directly by the sense of motion of electrical motor 58 and the speed control of electrical motor 44 and 58.Therefore control piece 70 can be more more not complicated than the rheostat of the counter-rotating control setup of electrical motor 58 and electrical motor 44,58.Yet,, when twining complicated style, just can realize more accurate control if control piece 70 comprises the micro controller system of the speed of the direction at a control motor 58 and electrical motor 44,58.For example, Fig. 7 shows the example of a column, adopts a big angle A in the bottom of this column 20, gradually changes then, becomes a little angle A to the top of column.If pitch P remains unchanged, this variation is to realize by the speed that changes electrical motor 44.But the various combinations of micro controller system storage speed in its memory device, or calculate them according to geometric relationship, to reach desired result.
In this method, the size of ascending angle A approximately is not more than 1 °, preferably is not more than 0.5 °, and ascending angle A with respect to the horizontal plane can just can bear (the angle A among Fig. 7 is for illustrating clear being exaggerated).That is, reinforcement material preferably is oriented to the hoop reinforcement spare that has a little escalating rate near.Bigger angle A causes the column hardening, is unhelpful for most of situations.Pitch P equals the width in reinforcement material broadband, is preferably about 0.90 inch, makes adjacent turn lay with arrangement mode side by side.
Another feature of this method as shown in Figure 2.The layer that one sensor 72 is embedded in the reinforcement material that spiral twines with layer between, or be embedded between the cement concrete and ground floor of column.Be careful when the lead-in wire 74 of sensor 72 being located between the adjacent turn of reinforcement material.Can imbed the sensor such as fiber optics and magneto strictive sensor by this way.In addition, the sensor such as strain gage or acoustic emission transducer can be placed on the outside face of reinforcement material top layer.
After winding process is finished, take equipment 30 apart and take off from column 20.If reinforcement material contains the curable composition such as curable epoxy resin-base, then the heating of the reinforcement material on column, to be cured.Can adopt the heating arrangement of the required temperature of reaching of any practicality.But,, preferably adopt an economic as far as possible temperature booster because heated scope is bigger.Fig. 8 illustrates one and is coated on the heating covering 76 of being with adiabatic layer on the column 20.Fig. 9 illustrates another method.Here, the column 20 of reinforcement material 61 is twined by a gas heater 78 encirclements in the outside.Temperature booster 78 comprises a conductive walls 80, an external insulation wall 82 and has the space of gas jet 84.One insulating barrier, 86 outer overlaying on the outer wall 82.Gas jet 84 heating inwalls 80, thereby heating reinforcing member 61.In any one method of Fig. 8 and 9, measure the temperature on reinforced fibers surface and the temperature on column surface with thermocouple 88 and 90 respectively.Also can increase thermocouple if desired.Thermocouple feedback temperature information can be adjusted the heating-up temperature of temperature booster and time like this to obtain the cure cycle of a suitable reinforcement material.
Figure 10 illustrates the preferred approach of reinforcing column 20 outside faces with the form of block schematic diagram.If must handle the outside face of column earlier, number in the figure 100.In one approach, outside face covers the polymer film that its effect of one deck resembles priming paint very much, represents with label 100.Polymer film is preferably, because it seals up reinforcing member, when cement concrete heated, it can prevent the aqueous vapor that given out by the column cement concrete, but also dust protection and dirt.Earlier polymer film is being coated on the surface of column 20 before the rigging equipment 30, and should making its drying by the explanation of product.Under the situation of the best, the liquid urine gastral cavity poly-mer curable two compositions of q.s is coated on the outside face, forms the polymer film of about 0.10 inch thickness when drying.Dry time that need be about one hour.Before carrying out any surface treatment, answering may influencing of column to twine any of construction has fault or problematic surface to clean, repair or repair but simultaneously.
Around column 20 rigging equipments 30, represent with label 102.Twine reinforcement material spiral winding layer with preceding method, represent with label 104.If desired, sensor is twined into.When the number of plies reaches requirement, take equipment 30 apart and it is taken off, represent with label 106.Heating arrangement is loaded onto in outside at uncured reinforcing member material, and heats described layer according to the curing explanation of maker, with the composition of cure curable, represents with label 108.In a representative type situation, be heated to about 180-400 temperature by about 1 hour time, be incubated about 3 hours again, keep heating arrangement to make the reinforcement material cooling in position then, finish curing thus.Thermocouple is used for estimating the heating state of reinforcement material.Heating and curing need apply a protective coat to the top layer of reinforcement material after finishing, with sealing and protection reinforcement material.Preferable protective coat is two composition urine gastral cavity poly-mers, and the protection poly-mer of available Ultracoat 2000 is coated with last layer earlier during use, make its drying then in ambient temperature, forms protective coat thus.
Produce a model machine 30, and be used for twining many columns.Every high 8-12 foot, the seven 0.4 ratiometric columns of being made by ferro-concrete are wound with the band bundle of carbon pre-preg.The column of five actual sizes that every high 25-30 foot, diameter are 4 feet is wound with the band bundle of carbon pre-preg.At the scene, the carbon mix shell is cured on the column.The damaged condition of the test column that some processes are transformed under the earthquake load of simulation.Be accompanied by expected structural behaviour, test surfaces: the carbon shell of appropriate designs and installation can reach the same with the conventional steel shell or the higher shockproof effect of degree, simultaneously, because the installation process full automation, so significant raising is being arranged aspect speed of application and the quality control.
Because column 20 is very big originally, so will improve the speed of winding as much as possible.Figure 11-14 illustrates the equipment 200 that can improve speed of wrap.Equipment 200 has many and equipment 30 identical feature and parts, adopts the description of equipment 30 in application facet.The emphasis of discussing below is at the different aspect of equipment 200.
As shown in figure 13, reinforcing member 218 guides to column 20 by roller type guide 220 from bobbin, and Figure 13 only illustrates wherein one group.Each bobbin bank and bobbin that bobbin bank 208 and bobbin 210 are arranged in as shown in the figure the equipment 200 only need two roller type guides 220, and each bobbin in the equipment 30 needs the roller type guide of a greater number.The quantity that reduces the roller type guide can also reduce equipment 200 upkeep costs with regard to reducing the potential destruction to reinforcing member.
One second actuating device 222 drives basis 202 along column 20 vertical shifting.Its upper support has the mass motion on the basis 202 of bobbin 210 to form short unmodified distance between bobbin 210 and column 20.Figure 14-16 shows three kinds of forms of second drive system 222, also can use any other second feasible drive system.
In Figure 14, erect one or four post scaffolds 224 around column 20.Increase the combined part of elevator form, just can change the bottom-to-top-height of these connection system for guide rail that can buy from the market at an easy rate.One chain or belt-type actuator 226 extend between the top pulleys 228 of each pillar of scaffold 224 and bottom pulley 230, just can increase distance between pulley 228 and 230 increasing combined part on the pillar.Basis 202 is installed on four chain drive parts 226, rises or descends by the effect of a vertical drive electrical motor (not shown).
Figure 15 illustrates an autonomous climbing mechanism 232 that is bearing on the column 20, thereby does not need to be connected with ground.For ground irregular or when piling column the underwater place of base, and such as the limited area in the building and the building of stopping, this mechanism 232 is particularly useful.Mechanism 232 comprises the piston 234 of two groups of independently pneumatic, electronic or hydraulic pressure.One group comprises four piston 234a that face interior facing to column 20.Another group comprise four face in facing to the piston 236 between the piston 234b of column 20 and four supporting structures that are connected piston 234a and basic 202.Forcing one group of piston supposition in the piston 234 is that piston 234a leans against on the column 20, the piston 234b that withdraws then, and vertical piston 236 is withdrawn with the basis 202 of rising together with coordination mode.Withdraw when piston 236 has reached fully, piston 234b is sandwiched on the column, piston 234a withdrawal, and piston 236 extensions move up piston 234a.Force piston 234a to lean against on the column 20, repeat said process, move thus.
Use a car formula elevator 238 among the embodiment of second drive system 222 of Figure 16.Basis 202 is being supported by a cantilever 240 that is installed on the rotary table 242 of car formula elevator 238.The coordinated movement of various economic factors of cantilever 240 and rotary table 242 allows basic 202 up-and-down movements, keeps it to be in level orientation simultaneously, and is represented as the diagram with several stacks among Figure 16.The advantage of this method is: can very fast erecting equipment 200 near the ground of column 20 bottoms at vehicle.
Be similar to the motion that first drive system 212 and second drive system 222 were coordinated and controlled to the computer control system of discussing at Fig. 6 by one.Calculate function and be controlled at the electrical motor and the actuator of this any kind of discussing, and multiple as previously discussed winding angle is provided and twines density.
So far, reinforcing member 218 is described as the composite material of a pre-preg that is cured after twining always.This method can be used for equipment 30 and equipment 200.In addition, being wrapped in reinforcing member on the column 20 can be " doing " fiber in the curable polymeric material of not nuzzling.Dried fiber generally is arranged bunchy or fabric belt bundle.With equipment 30 or equipment 200 dried fiber is wrapped on the column.After winding is finished, add a curable polymer resin or an inorganic coating, solidify in the original place then or drying at the outside face of doing fibre coatings.In the another kind of dried fiber shown in Figure 17 is used, provide curable polymeric material in the place of reinforcing member 218 contact columns 20.Provide its viscosity to be similar to the curable polymeric material of cream slurry usually with nozzle 244 near reinforcing member contact column place.In Figure 17, nozzle 244a sends liquid polymers in the acute angle seam between reinforcing member and the column to, and nozzle 244b delivers to liquid polymers the outside face of the reinforcing member fiber that has just twined.After this, poly-mer solidifies in aforesaid mode.
Preferred embodiment of the present invention has been described to the transformation aspect of existing column in the front.But the initial manufacturing of its column is suitable for too.
Though illustrative purposes is described special embodiment of the present invention in detail for example, under the situation that does not break away from essence spirit of the present invention and scope, can also carry out various changes and expansion to the present invention.Therefore, except that claims, the present invention is unrestricted.
Claims (16)
1. equipment with reinforcement material reinforcing vertical columns outside face comprises:
One basis, described basis comprise at least two attachable, around a column, be assembled into a part around the annulus of this column;
One is bearing in the swivel mount on the described basis;
With first actuating device around the circumferencial direction driven in rotation frame on described basis;
One is bearing in the feeding mechanism of the supply reinforcement material on the described swivel mount;
Make second actuating device of described basic vertical shifting; With
Reinforcement material is directed on the column, then described reinforcement material is wrapped in guide piece on the described column from feeding mechanism.
2. equipment as claimed in claim 1 is characterized in that, described basis comprises two semi-circular features.
3. equipment as claimed in claim 1 is characterized in that, described first actuating device comprises:
One is fixed on first guide rail on the described basis,
One on described swivel mount first rail engagement members and
First driving motor of one rotatable rail engagement members.
4. equipment as claimed in claim 1 is characterized in that, the feeding mechanism of described reinforcement material comprises two independently reinforcement material sources of supply at least.
5. equipment as claimed in claim 1 also comprises:
Reinforcing member is wrapped in the device that described column solidifies described reinforcing member afterwards.
6. equipment as claimed in claim 1 also comprises:
The calculator of one control first actuating device and second actuating device.
7. equipment as claimed in claim 1 is characterized in that, the feeding mechanism of reinforcement material comprises:
A plurality of be bearing on the swivel mount bobbin bank and
The feeding mechanism of a plurality of reinforcement materials, feeding mechanism of each bobbin bank upper support.
8. equipment as claimed in claim 1 is characterized in that, the feeding mechanism of supply reinforcement material comprises the feeding mechanism of the composite material of a pre-preg.
9. equipment as claimed in claim 1 is characterized in that, second actuating device comprises:
One car formula elevator.
10. equipment as claimed in claim 1 is characterized in that, second actuating device comprises:
One is bearing in the autonomous climbing mechanism on the column.
11. equipment as claimed in claim 1 is characterized in that, second actuating device comprises:
One erects the scaffold around column.
12. equipment as claimed in claim 1 is characterized in that, second actuating device comprises:
One is parallel to the vertical rod that column extends from swivel mount; One is bearing in the vertical rack on the vertical rod; With make vertical rack along vertical rod with the vertical direction device driven.
13. the method with reinforcement material reinforcing vertical columns outside face comprises step: around vertical columns, assemble a Wiring apparatus; Outside face at column twines the multilayer reinforcement material, and each layer has the reinforcement material of helical pattern; With take Wiring apparatus apart and it taken off from vertical columns.
14. method as claimed in claim 13 also comprises another step after taking step apart: heating multilayer reinforcement material.
15. method as claimed in claim 13 is characterized in that, winding step comprises step: the reinforcement material that a plurality of continuous fibers are provided.
16. method as claimed in claim 13 is characterized in that, winding step comprises step: form a helical pattern less than 1 ° advance angle approximately with one.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/284,155 US5680739A (en) | 1994-08-01 | 1994-08-01 | Apparatus and method for reinforcing a stationary vertical column |
| US48602395A | 1995-06-07 | 1995-06-07 | |
| US08/486,023 | 1995-06-07 | ||
| US08/284,155 | 1995-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1164846A true CN1164846A (en) | 1997-11-12 |
Family
ID=26962439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95194911A Pending CN1164846A (en) | 1994-08-01 | 1995-08-01 | Apparatus and method for reinforcing vertical columns |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0773904A4 (en) |
| JP (1) | JPH10504002A (en) |
| KR (1) | KR970704620A (en) |
| CN (1) | CN1164846A (en) |
| AU (1) | AU3201995A (en) |
| CA (1) | CA2196313A1 (en) |
| WO (1) | WO1996004197A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491091C (en) * | 2005-01-17 | 2009-05-27 | 吉野产业株式会社 | Support structure of building and its assembly method |
| CN103526951A (en) * | 2013-11-07 | 2014-01-22 | 湖南大学 | Equipment and construction technology for strengthening reinforced concrete flexural members through bonding plates |
| CN111128480A (en) * | 2019-11-29 | 2020-05-08 | 汪逸凡 | Cable protection layer winding robot |
| CN111827142A (en) * | 2020-07-09 | 2020-10-27 | 李庆磊 | Bridge reinforcing and consolidating construction platform for building construction |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2991747B1 (en) | 2012-06-08 | 2016-07-01 | 3X Eng | DEVICE AND METHOD FOR REPAIRING A LONGILINE BODY |
| CN114165072B (en) * | 2021-12-31 | 2023-02-17 | 余世好 | Device and method for repairing house building damaged by bottom frame column vibration |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1883401A (en) * | 1930-02-08 | 1932-10-18 | Johns Manville | Pipe wrapping apparatus |
| NL7610811A (en) * | 1976-09-29 | 1978-03-31 | Lundbergs Fab Ab N | DEVICE FOR THE MANUFACTURE OF ARMED PIPES. |
| US4659033A (en) * | 1983-06-14 | 1987-04-21 | Preload Concrete Structures, Inc. | Apparatus for prestressing concrete structures or the like |
| FR2549029B1 (en) * | 1983-07-11 | 1987-01-30 | Comabi Sa | ELEVATOR COMPRISING AT LEAST ONE TELESCOPIC MAT |
| FR2582705B1 (en) * | 1985-05-28 | 1990-04-20 | Cahors App Elec | POST IN PLASTIC MATERIAL FOR SUPPORTING IN PARTICULAR ELECTRIC LINES AND DEVICE FOR REALIZING A FIBER WINDING ON THIS POST |
| US4786341A (en) * | 1986-04-15 | 1988-11-22 | Mitsubishi Chemical Industries Limited | Method for manufacturing concrete structure |
| US5133510A (en) * | 1990-05-14 | 1992-07-28 | Vsl Corporation | Column wire winding apparatus |
| US5326410A (en) * | 1993-03-25 | 1994-07-05 | Timber Products, Inc. | Method for reinforcing structural supports and reinforced structural supports |
-
1995
- 1995-08-01 JP JP8506611A patent/JPH10504002A/en active Pending
- 1995-08-01 AU AU32019/95A patent/AU3201995A/en not_active Abandoned
- 1995-08-01 WO PCT/US1995/009489 patent/WO1996004197A1/en not_active Application Discontinuation
- 1995-08-01 EP EP95928158A patent/EP0773904A4/en not_active Withdrawn
- 1995-08-01 KR KR1019970700687A patent/KR970704620A/en not_active Application Discontinuation
- 1995-08-01 CN CN95194911A patent/CN1164846A/en active Pending
- 1995-08-01 CA CA002196313A patent/CA2196313A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491091C (en) * | 2005-01-17 | 2009-05-27 | 吉野产业株式会社 | Support structure of building and its assembly method |
| CN103526951A (en) * | 2013-11-07 | 2014-01-22 | 湖南大学 | Equipment and construction technology for strengthening reinforced concrete flexural members through bonding plates |
| CN111128480A (en) * | 2019-11-29 | 2020-05-08 | 汪逸凡 | Cable protection layer winding robot |
| CN111128480B (en) * | 2019-11-29 | 2021-07-27 | 汪逸凡 | Cable protection layer winding robot |
| CN111827142A (en) * | 2020-07-09 | 2020-10-27 | 李庆磊 | Bridge reinforcing and consolidating construction platform for building construction |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996004197A1 (en) | 1996-02-15 |
| EP0773904A4 (en) | 1998-05-13 |
| KR970704620A (en) | 1997-09-06 |
| AU3201995A (en) | 1996-03-04 |
| EP0773904A1 (en) | 1997-05-21 |
| CA2196313A1 (en) | 1996-02-15 |
| JPH10504002A (en) | 1998-04-14 |
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