CN104652447B - The sustainable cladding plate that applies counter-force is used prestressed wale temporarily - Google Patents

The sustainable cladding plate that applies counter-force is used prestressed wale temporarily Download PDF

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Publication number
CN104652447B
CN104652447B CN201410642678.XA CN201410642678A CN104652447B CN 104652447 B CN104652447 B CN 104652447B CN 201410642678 A CN201410642678 A CN 201410642678A CN 104652447 B CN104652447 B CN 104652447B
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China
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prestressing
steel wire
waist rail
steel
force
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CN104652447A (en
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盧炅範
盧又鉉
安声镛
安善福
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Gui Technology (strain) Again
Beijing Di Sheng Kechuang Construction Engineering Corp Ltd
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Gui Technology (strain) Again
Beijing Di Sheng Kechuang Construction Engineering Corp Ltd
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Abstract

The present invention relates to a kind of interim waist rail, reduce all steel material quantities than traditional bearing waist rail, constructing of energy economy, extend the security of waist rail, strengthening waist rail, at successive projects ground surface works with that structures are set is more easy, shorten the engineering time, what increase efficiency of construction was object imports the interim cladding plate prestressed wale of using that appends counter-force. For reach the present invention of above-mentioned purpose can import append counter-force interim with cladding plate prestressed wale be the plumb pile with certain spacing; Waist rail through plumb pile is set; The bearing of fixing, support wale is for cladding plate temporary facility waist rail, arranges and Shui Pingliang through waist rail; The weight PS steel wire fixed support being fixedly installed at Shui Pingliang two ends; The PS steel wire support arranging in the middle of the weight PS steel wire fixed support prestressing force of holding concurrently imports equipment; Ride over weight PS steel wire fixed support and the PS steel wire bearing prestressing force of holding concurrently and import the PS steel wire that is fixedly installed of facility.

Description

The sustainable cladding plate that applies counter-force is used prestressed wale temporarily
Technical field
The invention relates to the sustainable cladding plate that applies counter-force temporarily with the relevant technological invention of prestressed wale. ParticularlyThe positive moment occurring on the waist rail using in cladding plate construction, apply prestressing force for the first time according to initial Buckling Loads, according to openingThe main prestressing steel drawing applies prestressing force for the second time, applies prestressing force for the third time, root according to the auxiliary prestressing steel of stretch-drawApply the 4th the prestressed sustainable cladding plate that applies counter-force according to stressing equipment and use prestressed wale temporarily.
The present invention is that improvement is applicable to traditional interim using on cladding plate prestressed wale, increases fixing of prestressing steelFrame and prestressing steel bearing, the prestress application dynamics of increasing prestressing steel. In construction, apply more easily prestressing force, andWhile importing prestressing force, prevent the flexing of prestressing steel support, improve efficiency of construction, increase security, expand span scope, carryThe sustainable cladding plate that applies counter-force of high economy is used prestressed wale temporarily.
Background technology
In the current construction method often using, there are pillar construction, the construction of PS cladding plate etc. in building field.
Wherein the construction of PS cladding plate is to import prestressing force with prestressing steel, omits the method for the support span of waist rail, isIn generation nineteen ninety,, in the technology of Japan's exploitation, is at home and abroad used very widely according to field condition, is its look-ahead technique below.
The new case of practicality of Japan is put down into 2-23036 (1990.2.15 is open) if Fig. 1 is to as shown in Fig. 3, and retaining wall inner side is horizontalTo waist rail steel are set, waist rail steel are applied in the made cladding plate construction method of hoist cable with beam, the waist rail material that length is shortInner side arranges vertical steel, in the middle of vertical steel top and waist rail material, prestressing steel is set as firm truss-likeCladding plate, the waist rail material that length is grown arranges one or more vertical steel between hoist cable and hoist cable, at this vertical steel top waistBetween beam material and hoist cable intersection point, prestressing steel is set, becomes firmer truss cladding plate, as the cladding plate construction of featureMethod.
As mentioned above, the construction method of mentioning is to import prestressed method with prestressing steel in waist rail, from fixed partDraw at two ends, or above prestressing steel being shifted onto with hydraulic jacking device in vertical steel upper end, applies by its counter-forcePrestressing force, to waist rail, imports after prestressing force for the first time, sustainable importing prestressing force on rear prestressing steel above shifting onto, stillIn limited waist rail span scope, the magnitude setting of prestressing steel is restricted, and shifts top onto and imports after prestressing force, fixingPrestressing steel relevant issues cause sustainablely constructing.
Japan Patent is put down into 6-57741 (1994.03.01. is open) if Fig. 4 is to as shown in Fig. 6, forms the main heat of retaining wallAfter the I beam head inserting in body links with waist rail, insert vertical material on the surface of outside steel wire mode prestressing steel, be barricaded as archAfter shape, fix two ends, stress application is as the feature of this patent for the first time.
This retaining wall is according to the tension force that is barricaded as arch tendon and the stress at the initial stage of importing, be free to adjustment face withOuter distortion, maintains displacement range in tolerance band. Because utilize outward trunk mode binding prestress steel relatively to holdTendon is easily set, after using convenient except, connect the tendon of retaining wall head because in succession waist rail setting, so notObstacle while causing underground construction, compared with Support types form of construction work, more can raise the efficiency.
But after applying for the first time prestressing force, can not be continuously applied prestressing force, and also have that some operational procedures are complicated etc. asksTopic.
Japan Patent is put down into 7-56136 (1955.06.04 work announcement), and as shown in Figure 7 and Figure 8, the inner side of retaining wall arranges waistThe cladding plate construction method of beam, corner is fixing with support. It is in a kind of inner side at waist rail arranges prestressing steel,Prestressing steel hydraulic jacking device is arranged to the central authorities of waist rail, as counter-force, uses hydraulic jacking device with prestressing steelApply the converse power prestressing force cladding plate construction method that to reduce the soil pressure of waist rail be feature at waist rail.
This construction method is the prestressing steel counter-force arranging on application waist rail, adds at waist rail center at hydraulic jacking deviceAdd converse power, reduce moment of flexure and the shearing force of side pressure at waist rail, what expand waist rail can omit pillar across footpath, thereby reduces cladding plateWith footing excavation expense.
And the support that waist rail is set according to the average size of the size of soil pressure and excavated earth, across footpath, can be guaranteedSpacious inner space, improving underground construction energy rate is feature.
The shortcoming of above-mentioned construction method is, in the time importing prestressing force for the first time or continue to import prestressing force, always verticallyMaterial upper end retains hydraulic jacking device.
The content of invention
1, import and append the interim with a prestressing force cladding plate waist rail of counter-force, it has: arrange with certain spacingPlumb pile (110), through the waist rail (120) of described plumb pile (110) and through the Shui Pingliang (140) of described waist rail (120);Be arranged at described cladding plate waist rail for bearing (130) fixing and that support described waist rail (120); At described water Ping Liang (140)The weight PS steel wire fixed support (150) that two ends are fixedly installed; In the middle of described weight PS steel wire fixed support (150), arrangeWeight PS steel wire support hold concurrently prestressing force import equipment (160); Ride over described weight PS steel wire fixed support and described weight PSThe steel wire bearing prestressing force of holding concurrently imports the PS steel wire (170) that be fixedly installed of equipment on (160); Be formed in described water Ping Liang (140)PS steel wire fixed parts (180) two ends and that position Bi Gaishui Ping Liang (140) is higher; Described weight PS steel wire bearing is held concurrently pre-It is on the precalculated position on Shui Pingliang (140), by bolt and vertically disposed fixed part (240) that stress imports equipment (160);Hydraulic jacking device (250) is set on the precalculated position of this fixed part (240); And on this fixed part (240) top, PS is setSteel wire (170), up promotes to apply prestressed movable part (260) to PS steel wire (170) by hydraulic jacking device (250),Fixed part inserts the movable part (260) that limits its left and right; Connect up and down the change of this fixed part (240) and this movable part (260)Bolt (270) is adjusted in position; The inner side, upper end of movable part (260) forms by predetermined shape.
2, according to the waist rail described in technical scheme 1, it is characterized in that: described weight PS steel wire fixed support (150) wholeShape is columnar steel construction; And there is the base plate (151) of predetermined thickness; From the position on the top of described base plate (151)Be provided with seat supports plate (152); With described base plate (151) hanging down of forming as one vertical with described seat supports plate (152)Straight plate (153); Be protruding with protruding plate (154) with a side of described vertical panel (153); The inner side of vertical panel (153) forms to be hadThe space of reservation shape; Described waist rail also has gripper shoe (190), and ground pressing plate (200) maintains management PS steel wire fixed part(220)。
3, the sustainable cladding plate that applies counter-force is used a prestressed wale temporarily, and it has: with the setting of certain spacingPlumb pile (110), through the waist rail (120) of described plumb pile (110) and through the Shui Pingliang of described waist rail (120)(140); Be arranged at described cladding plate waist rail for bearing (130) fixing and that support described waist rail (120); On described water level groundThe light weight PS steel wire fixed support (150a) that beam (140) two ends are fixedly installed; At described light weight PS steel wire fixed support (150a)The middle light weight PS steel wire support the arranging prestressing force of holding concurrently imports equipment (160a); Ride over described light weight PS steel wire fixed support and instituteState the PS steel wire (170) being fixedly installed that light weight PS steel wire bearing is held concurrently on prestressing force importing equipment (160a); Be formed in describedThe two ends of water Ping Liang (140), and the higher PS steel wire fixed part (180) of position Bi Gaishui Ping Liang (140); Described light weight PS steelLine bearing hold concurrently prestressing force import equipment (160a) be on the precalculated position on Shui Pingliang (140) by bolt vertically disposed solidBonding part (240); The hydraulic jacking device (250) arranging on the precalculated position of this fixed part (240); This fixed part (240) topPS steel wire (170) is set, up promotes to apply prestressed movable part to PS steel wire (170) by hydraulic jacking device (250)(260); Bolt (270) is adjusted in the displacement that connects up and down this fixed part (240) and this movable part (260); Movable part (260)Upper end inner side by predetermined shape formation.
4, according to the waist rail described in technical scheme 3, it is characterized in that: described light weight PS steel wire fixed support (150a) wholeShape is the steel construction of lineal hexahedral; And have by the asymmetrical gripper shoe (190a) that is set to inclination in side; With instituteState the ground pressing plate (200a) that gripper shoe (190a) forms level; Fix with the PS steel wire that ground pressing plate (200a) level forms as onePortion (210a).The problem solving
The present invention to study in order addressing the above problem and to improve, and improves emphatically the efficiency of economy and construction,Reduce whole steel quantity than traditional support waist rail, can under the environment of increasing economic efficiency, construct, prolongation waist rail,The security of strengthening waist rail, carries out more easily ground excavation and the successive projects such as structure is set, and is to shorten the engineering time, carriesThe sustainable cladding plate that applies counter-force of high efficiency of construction has its object with prestressed wale temporarily.
And, the sagging moment occurring in cladding plate construction is applied to prestressing steel fixed position, insert in advance should of arrangingStretch-draw prestressing force steel on power steel, disposable being fixed on after waist rail, is set to this waist rail on retaining wall body, uses hoist cableAfter being mutually fixedly set, prestressing steel bearing is held concurrently and is inserted hydraulic jacking device in prestressing force gatherer and up promote. At dressThe startup portion of putting applies prestressing force after up moving on prestressing steel, makes to produce counter-force in retaining wall direction, improves gear soilThe security of wall and the sustainable cladding plate that applies counter-force is provided interim with prestressed wale be object of the present invention.
Improvement is for traditional cladding plate, the fixed support of the prestressing steel on temporary facility prestressed wale, prestressing forceSteel bearing hold concurrently prestressing force gatherer, vertical beam, increase the prestressing force import volume of prestressing steel, is easy to apply in construction chase afterThe prestressing force adding, the hold concurrently flexing of prestressing force introducing equipment of the steel bearing while preventing from importing prestressing force improves its security,Can guarantee span scope, improve economy, provide the sustainable cladding plate that applies counter-force to use prestressed wale temporarily, be of the present inventionPurpose.
The effect of invention
As foregoing, the sustainable cladding plate that applies counter-force of the present invention has following effect with prestressed wale temporarily.
The first, the present invention is widened to 6～30m the spacing of bearing, reduces by 50%～70% bearing, can reduce constructionTake.
The second, the present invention can reduce the quantity of bearing, improves the efficiency of construction of excavating construction.
The 3rd, the waist rail displacement that the present invention brings according to the variation of soil pressure in construction, continues prestressing force to be applied in advanceStress steel improve its efficiency.
The 4th, the present invention can use lower waist rail height, in city, also can construct.
Brief description of the drawings
Fig. 1 illustrates the plane of traditional falsework structure to Fig. 3.
Fig. 4 illustrates the plane of traditional interim retaining wall to Fig. 6.
Fig. 7 illustrates the plane of traditional prestressing force cladding plate construction method to Fig. 8.
Fig. 9 illustrates traditional waist rail and arranges the plane of state.
Figure 10 illustrates the present invention can import the interim oblique view with cladding plate prestressed wale the 1st embodiment that appends counter-force.
Figure 11 illustrates the present invention can import the interim front elevation with cladding plate prestressed wale the 1st embodiment that appends counter-force.
Figure 12 illustrates the present invention can import the interim plane with cladding plate prestressed wale the 1st embodiment that appends counter-force.
Figure 13 illustrates the present invention can import the interim decomposition stravismus with cladding plate prestressed wale the 1st embodiment of appending counter-forceFigure.
Figure 14 illustrates the present invention can import the interim oblique view with cladding plate prestressed wale the 2nd embodiment that appends counter-force.
Figure 15 illustrates the present invention can import the interim front elevation with cladding plate prestressed wale the 2nd embodiment that appends counter-force.
Figure 16 illustrates the present invention can import the interim plane with cladding plate prestressed wale the 2nd embodiment that appends counter-force.
Figure 17 illustrates the present invention can import the interim decomposition stravismus with cladding plate prestressed wale the 2nd embodiment of appending counter-forceFigure.
Figure 18 illustrates the present invention can import the interim oblique view with cladding plate prestressed wale the 3rd embodiment that appends counter-force.
Figure 19 illustrates the present invention can import the interim front elevation with cladding plate prestressed wale the 3rd embodiment that appends counter-force.
Figure 20 illustrates the present invention can import the interim plane with cladding plate prestressed wale the 3rd embodiment that appends counter-force.
Figure 21 illustrates the present invention can import the interim decomposition stravismus with cladding plate prestressed wale the 3rd embodiment of appending counter-forceFigure.
Figure 22 illustrates the present invention can import the interim oblique view with cladding plate prestressed wale the 4th embodiment that appends counter-force.
Figure 23 illustrates the present invention can import the interim front elevation with cladding plate prestressed wale the 4th embodiment that appends counter-force.
Figure 24 illustrates the present invention can import the interim plane with cladding plate prestressed wale the 4th embodiment that appends counter-force.
Figure 25 illustrates the present invention can import the interim decomposition stravismus with cladding plate prestressed wale the 4th embodiment of appending counter-forceFigure.
Figure 26 illustrates the present invention can import the interim oblique view with cladding plate prestressed wale the 5th embodiment that appends counter-force.
Figure 27 illustrates the present invention can import the interim front elevation with cladding plate prestressed wale the 5th embodiment that appends counter-force.
Figure 28 illustrates the present invention can import the interim plane with cladding plate prestressed wale the 5th embodiment that appends counter-force.
Figure 29 illustrates the present invention can import the interim decomposition stravismus with cladding plate prestressed wale the 5th embodiment of appending counter-forceFigure.
Figure 30 illustrates the present invention and can import append counter-force interim and oblique drawing of the state is set with cladding plate prestressed wale.
Detailed description of the invention
Below additional indication drawing of the present invention, is elaborated.
Detailed description of the invention 1: can import the prestressed large-span weight waist rail that appends counter-force
Figure 10 is the oblique view that the sustainable cladding plate that applies counter-force of the present invention is used prestressed wale the 1st case study on implementation temporarily,Figure 11 is the front elevation that the sustainable cladding plate that applies counter-force of the present invention is used prestressed wale the 1st case study on implementation temporarily, and Figure 12 is thisInvent the sustainable cladding plate that applies counter-force and use the plane of prestressed wale the 1st case study on implementation temporarily, Figure 13 figure is that the present invention canThe cladding plate that is continuously applied counter-force is used the exploded perspective view of prestressed wale the 1st case study on implementation temporarily.
As shown in the figure, to use prestressed wale (P) be with certain spacing to the sustainable cladding plate that applies counter-force of the present invention temporarilyPlumb pile (110); Waist rail (120) through plumb pile (110) is set; At cladding plate temporary facility waist fixing, support waleThe bearing (130) of beam (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; Be fixedly installed at Shui Pingliang (140) two endsWeight prestressing steel fixed support (150); The prestress steel arranging in the middle of weight prestressing steel fixed support (150)The material support prestressing force introducing equipment (160) of holding concurrently; Be fixedly installed on weight prestressing steel fixed support and prestressing steel bearingThe prestressing steel (170) of holding concurrently on prestressing force introducing equipment (160); Pre-at the bonding higher beam in the two ends of Shui Pingliang (140)Stress steel fixed part (180) feature that is configured to.
At this, all shapes of weight prestressing steel fixed support (150) are cylindrical shape steel constructions, by certain thicknessBase plate (151); From the certain position on base plate (151) top, seat supports plate (152) is set; With base plate (151) and seat supportsPlate (152) is vertical, the vertical panel (153) forming as one; The protruding plate (154) protruding in a side of vertical panel (153); VerticallyThe inner side of plate (153) forms the space of given shape, and by gripper shoe (190), pressing plate (200), prestressing steel fixingPortion (180), for maintaining the formation such as fixed part (220) of prestressing steel of management.
And the above-mentioned prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is specific by Shui Pingliang (140)On position, use the vertically disposed fixed position of high-strength bolt (300) (240); On the ad-hoc location of fixed position (240), arrangeHydraulic jacking device (250); Fixed position (240) top arranges prestressing steel (170), the up promotion of hydraulic jacking deviceApply prestressing force to prestressing steel (170), insert the movable part (260) of more than 1/2 restriction left and right at fixed part; Connect up and downBolt (270) is adjusted in the displacement of fixed part (240) and movable part (260); Inner side, upper end at movable part (260) forms specific shapeThe prestressing force of shape is led the formations such as steel wire (280).
Above-mentioned water Ping Liang (140) does not import prestressed general waist rail, and the Shui Pingliang (140) at waist rail (120) two ends establishesThe weight prestressing steel fixed support (150) that degree of setting high is equal, the upper end in whole intervals of waist rail (120) is vertical bonding certainThe weight prestressing steel bearing of the spacing prestressing force introducing equipment (160) of holding concurrently, at weight prestressing steel fixed support (150) andThe inner prestressing steel (170) that inserts of prestressing force introducing equipment (160) between weight prestressing steel support is double, in order to load and displacementAdjustable hydraulic jacking device (250) draws a PS steel wire (170) at the two ends of weight prestressing steel fixed support (150)Apply for the first time prestressing force, be fixedly installed after waist rail (120), at the weight prestressing steel bearing prestressing force introducing equipment of holding concurrently(160) hydraulic jacking device (250) is set on, hydraulic jacking device (250) is up promoted to after-applied prestressing force for the second time and arriveOn prestressing steel (170). In construction, continue the variation of corresponding soil pressure, at two of weight prestressing steel fixed support (150)End continues to draw to be opened or releasing prestressing steel (170). Its weight prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is to continueContinuous up or down adjustable stressing equipment at any time, becomes the sustainable prestressed large-span weight waist that applies counter-forceBeam.
The inscape of above-mentioned waist rail (120) has weight prestressing steel fixed support (150), Shui Pingliang (140), weightPrestressing steel bearing hold concurrently prestressing force introducing equipment (160), prestressing steel (170).
At this, weight prestressing steel fixed support (150) is by prestressing steel fixed part (180), ground pressing plate(200), gripper shoe (190), maintains the compositions such as management prestressing steel fixed part (220), and wherein weight prestressing steel is solidThe strong point (130) of bearing is done in the top of fixed rack (150).
And the weight prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is fixing by fixing water Ping Liang (140)Portion (240), hydraulic jacking device (250), the movable part (260) up being promoted by hydraulic jacking device (250), be connected and fixed portion(240) and the displacement of movable part (260), fixing movable part (260) adjust bolt (270) composition.
Further, movable part (260) top has prestressing force to lead steel wire (280), and optionally there is aligning fixed part (240) belowAdjust bearing (310), prestressing steel (170) and prestressing steel gland (320) etc. As mentioned above, the present invention is sustainableThe cladding plate that applies counter-force uses the inscape of prestressed wale (P) to be temporarily: weight prestressing steel fixed support (150); WaterFlat-topped ridge (140); The weight prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently; Prestressing steel (170) consists of oneAfter, traditional bracing frame (130) spacing is 2～3m, but utilizes sustainable interim the using in advance of cladding plate that applies counter-force of the present inventionStress waist rail (P) can be widened to 10～25m spacing, and the steel demand of bracing frame (130) is than the interim waist of traditional cladding plateBeam can reduce 70%, can be described as the cladding plate temporary construction method of an innovation.
Describe the sustainable cladding plate that applies counter-force forming described above below in detail and use the construction of prestressed wale temporarily.
As shown in Figure 10 to 13, the sustainable cladding plate that applies counter-force of the present invention is used the construction method of prestressed wale temporarilyBe, with the plumb pile (110) of certain spacing; Waist rail (120) through plumb pile (110) is set; Fixing, support waleThe bearing (130) of cladding plate temporary facility waist rail (120) is upper, and the Shui Pingliang (140) through waist rail (120) is set; At vertical beam(140) two ends are fixedly installed weight prestressing steel fixed support (150); In weight prestressing steel fixed support (150)Between the weight prestressing steel fixed support prestressing force introducing equipment (160) of holding concurrently that arranges; Fix with above-mentioned weight prestressing steelSupport (150) and the prestressing steel bearing prestressing steel (170) being fixedly installed on prestressing force introducing equipment (160) of holding concurrently; ?The two ends of water Ping Liang (140) are bonding than water Ping Liang (140) more after the prestressing steel fixed part (180) of jowar, from prestress steelMaterial fixed part (180) is built PS and is led steel wire to the hold concurrently top of prestressing force gatherer (160) of weight prestressing steel bearing(280), reinforce the rear primary prestressing force that applies of prestressing steel fixed part (180) with hydraulic pressure bracing means, fixed bonding is pre-Stress steel (170). And above-mentioned weight prestressing steel bearing is held concurrently after prestressing force introducing equipment (160) up promotes, secondThe after-applied prestressing force of inferior stretch-draw prestressing force steel (170).
At this, weight prestressing steel fixed support (150) is that all shapes are columnar steel constructions, by certain thicknessBase plate (151); Certain position on the top of base plate (151) arranges seat supports plate (152); Base plate (151) and bearing prop upThe vertical panel (153) that fagging (152) vertically forms as one; With vertical panel (153) one side protrude protruding plate (154); Hang downThe inner side of straight plate (153) forms the space of given shape, and by gripper shoe (190), the consolidating of pressing plate (200), prestressing steelBonding part (180), for maintaining the formation such as fixed part (220) of prestressing steel of management.
And the above-mentioned prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is specific by Shui Pingliang (140)On position, use the vertically disposed fixed position of high-strength bolt (300) (240); On the ad-hoc location of fixed position (240), arrangeHydraulic jacking device (250); Fixed position (240) top arranges prestressing steel (170), the up promotion of hydraulic jacking deviceApply prestressing force to prestressing steel (170), insert the movable part (260) of more than 1/2 restriction left and right at fixed part; Connect up and downBolt (270) is adjusted in the displacement of fixed part (240) and movable part (260); Inner side, upper end at movable part (260) forms specific shapeThe prestressing force of shape is led the formations such as steel wire (280).
The sustainable cladding plate that applies counter-force of the present invention by the construction method of prestressed wale is temporarily, arrange multiple certain betweenThe plumb pile (110) of distance; Waist rail (120) through plumb pile (110) is set; Between waist rail, meet at right angles and be fixedly installed bearing(130) waist rail (100) of interim cladding plate is upper, and Shui Pingliang (140) does not import prestressed general waist rail, waist rail (120) twoThe Shui Pingliang (140) of end arranges highly equal weight prestressing steel fixed support (150), whole intervals of waist rail (120)The weight prestressing steel bearing of the vertical bonding determining deviation in the upper end prestressing force introducing equipment (160) of holding concurrently, at weight prestressing forceThe inner prestressing steel that inserts of prestressing force introducing equipment (160) between steel fixed support (150) and weight prestressing steel support are double(170), in order to load and the adjustable hydraulic jacking device of displacement (250) at weight prestressing steel fixed support (150)Two ends draw a PS steel wire (170) and apply for the first time prestressing force, be fixedly installed after waist rail (120), prop up at weight prestressing steelOn the double prestressing force introducing equipment of seat (160), hydraulic jacking device (250) is set, after hydraulic jacking device (250) is up promotedApply for the second time prestressing force to prestressing steel (170). In construction, continue the variation of corresponding soil pressure, at weight prestressing steelThe two ends of fixed support (150) are continued to draw or are removed prestressing steel (170). Its weight prestressing steel bearing prestressing force of holding concurrentlyIntroducing equipment (160) is to continue up or adjustable stressing equipment at any time down, becomes sustainable the pre-of counter-force that applyStress large span weight waist rail.
The inscape of above-mentioned waist rail (120) has weight prestressing steel fixed support (150), Shui Pingliang (140) and heavyAmount prestressing steel bearing hold concurrently prestressing force introducing equipment (160), prestressing steel (170); Weight prestressing steel fixed support(150) be by prestressing steel fixed part (180), ground pressing plate (200), gripper shoe (190), maintains management prestressing steel solidThe compositions such as bonding part (220), wherein the strong point (130) of bearing is done in the top of weight prestressing steel fixed support (150).
The weight prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is the fixed part by fixing water Ping Liang (140)(240); Hydraulic jacking device (250); The movable part (260) that up promoted by hydraulic jacking device (250), be connected and fixed portion(240), bolt (270) composition is adjusted in the displacement of movable part (260), fixing movable part (260).
Above-mentioned movable part (260) upper end has PS to lead steel wire (280), and fixed part (240) below optionally forms to aim at adjustsWhole bearing (310), and form prestressing steel (170) and prestressing steel gland (320). As above-mentioned, the present invention is sustainableThe cladding plate that applies counter-force is weight PS steel wire fixed support (150), horizontal beam by the construction method of prestressed wale temporarily(140), the assembling such as prestressing force introducing equipment (160), PS steel wire (170) of holding concurrently of weight prestressing steel bearing is set to after one,Bearing (130) spacing of tradition cladding plate temporary facility waist rail (100) be 2～3m, but utilize the present invention sustainable apply anti-The cladding plate of power uses prestressed wale (P) spacing can be widened to 10～25m temporarily, the steel demand ratio of bracing frame (130)The interim waist rail of traditional cladding plate can reduce 70%, can be described as the cladding plate temporary construction method of an innovation.
Detailed description of the invention 2
Figure 14 illustrates the sustainable cladding plate that applies counter-force of the present invention and uses temporarily the stravismus of prestressed wale the 2nd case study on implementationFigure, Figure 15 illustrates the sustainable cladding plate that applies counter-force of the present invention and uses temporarily the front elevation of prestressed wale the 2nd case study on implementation, Figure 16The sustainable cladding plate that applies counter-force of diagram the present invention is used the plane of prestressed wale the 2nd case study on implementation temporarily, and Figure 17 illustrates thisInvent the sustainable cladding plate that applies counter-force and use the exploded perspective view of prestressed wale the 2nd case study on implementation temporarily.
As shown in the figure, to use prestressed wale (P) be with certain spacing to the sustainable cladding plate that applies counter-force of the present invention temporarilyPlumb pile (110); Waist rail (120) through plumb pile (110) is set; At cladding plate temporary facility waist fixing, support waleThe bearing (130) of beam (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; Be fixedly installed at Shui Pingliang (140) two endsWeight prestressing steel fixed support (150); The prestress steel arranging in the middle of weight prestressing steel fixed support (150)The material support prestressing force introducing equipment (160) of holding concurrently; Be fixedly installed on weight prestressing steel fixed support and prestressing steel bearingThe prestressing steel (170) of holding concurrently on prestressing force introducing equipment (160); Pre-at the bonding higher beam in the two ends of Shui Pingliang (140)Stress steel fixed part (180) forms.
At this, weight prestressing steel fixed support (150) is that all shapes are columnar steel constructions, by certain thicknessBase plate (151); Certain position on the top of base plate (151) arranges seat supports plate (152); Base plate (151) and bearing prop upThe vertical panel (153) that fagging (152) vertically forms as one; With vertical panel (153) one side protrude protruding plate (154); Hang downThe inner side of straight plate (153) forms the space of given shape, and by gripper shoe (190), the consolidating of pressing plate (200), prestressing steelBonding part (180), for maintaining the formation such as fixed part (220) of prestressing steel of management.
And, Shui Pingliang (140) top welding or with the bonding high strength I beam of high-strength bolt (300) (230), with high-strengthThe opposite direction of degree I beam (230) load applies initial Buckling Loads, applies pre-on high strength I beam (230) and water Ping Liang (140)Stress.
And the above-mentioned prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is specific by Shui Pingliang (140)On position, use the vertically disposed fixed position of high-strength bolt (300) (240); On the ad-hoc location of fixed position (240), arrangeHydraulic jacking device (250); Fixed position (240) top arranges prestressing steel (170), the up promotion of hydraulic jacking deviceApply prestressing force to prestressing steel (170), insert the movable part (260) of more than 1/2 restriction left and right at fixed part; Connect up and downBolt (270) is adjusted in the displacement of fixed part (240) and movable part (260); Inner side, upper end at movable part (260) forms specific shapeThe prestressing force of shape is led the formations such as steel wire (280).
According to the present invention, to use prestressed wale (P) be the water level ground beam central authorities waist rail to the sustainable cladding plate that applies counter-force temporarilyDefinite part is configured to bonding general I beam and high strength I beam (230), applies initial flexing and imports prestressed waist rail. Waist rail(120) two ends arrange and the dark similar weight prestressing steel fixed support (150) of water Ping Liang (140) beam, waist rail (120)The weight prestressing steel bearing of the vertical bonding determining deviation in upper end between the whole district prestressing force introducing equipment (160) of holding concurrently, weight is pre-Stress steel fixed support (150) and the weight prestressing steel bearing inner prestress steel that inserts of prestressing force introducing equipment (160) of holding concurrentlyMaterial (170), in order to load and the adjustable hydraulic jacking device of displacement (250) at weight prestressing steel fixed support(150) two ends are drawn a PS steel wire (170) and are applied for the first time prestressing force, are fixedly installed after waist rail (120), at weight prestress steelMaterial bearing is held concurrently on prestressing force introducing equipment (160) hydraulic jacking device (250) is set, and hydraulic jacking device (250) is up pushed awayMoving after-applied prestressing force is for the second time to prestressing steel (170). In construction, continue the variation of corresponding soil pressure, at weight prestressing forceThe two ends of steel fixed support (150) are continued to draw or are removed prestressing steel (170). Its weight prestressing steel bearing is held concurrently pre-Stress introducing equipment (160) is continue up or down can adjust at any time prestressed equipment.
Become the long span footpath weight waist rail that can apply counter-force, the inscape of above-mentioned waist rail (120) has weight prestress steelMaterial fixed support (150), Shui Pingliang (140), weight prestressing steel bearing hold concurrently prestressing force introducing equipment (160), prestress steelMaterial (170) etc.
Wherein, weight prestressing steel fixed support (150) is by prestressing steel fixed part (180), ground pressing plate(200), gripper shoe (190), maintains the compositions such as management prestressing steel fixed part (220), and wherein weight prestressing steel is solidThe strong point (130) of bearing is done in the top of fixed rack (150).
And, at the upper bonding high-tenacity I beam (230) of above-mentioned water Ping Liang (140), form with working load and applied in the other directionThe Shui Pingliang (140) of the load of beginning flexing.
And the weight prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is fixing by fixing water Ping Liang (140)Portion (240); Hydraulic jacking device (250); The movable part (260) up being promoted by hydraulic jacking device (250); Connect up and down solidBolt (270) composition is adjusted in the displacement of bonding part (240) and movable part (260), also has movable part (260) top to have prestressing force to lead steelLine (280), fixed part (240) below optionally have to aim at adjusts bearing (310), prestressing steel (170) and prestress steelThe formations such as material gland (320).
As above-mentioned, the sustainable cladding plate that applies counter-force of the present invention uses prestressed wale (P) by weight prestressing force steel wire temporarilyFixed support (150), horizontal beam (140), weight prestressing steel bearing hold concurrently prestressing force introducing equipment (160), prestressing steelEtc. (170) assembling is set to after one, bearing (130) spacing of traditional cladding plate temporary facility waist rail (100) be 2～3m, butTo utilize the sustainable cladding plate that applies counter-force of the present invention to use prestressed wale (P) spacing can be widened to 15～30m temporarily,The steel demand of bracing frame (130) can reduce to 70% than the interim waist rail of traditional cladding plate (100), can be described as an innovationCladding plate temporary construction method. And, the water level ground of the above-mentioned cladding plate temporary facility prestressing force long span footpath weight waist rail that applies counter-forceBeam (140) is that the upper bonding high-tenacity I beam (230) of general water Ping Liang (140) forms the prestressing force water level ground that imports initial Buckling LoadsBeam, uses prestressing force water level ground beam the spacing between bearing (130) can be widened to 20～30m, be one Eco-power, Er QieLoad excavates the interference of MIN minimizing bearing (130) in construction, can effectively construct, and improves and executes in many-sideThe cladding plate of work is used waist rail temporarily.
Above-mentioned water Ping Liang (140) uses general I beam, and the top of Shui Pingliang (140) is used high strength I beam (230), bonding waterPing Liang (140) and high strength I beam (230), apply after initial flexing toward working load and opposite direction, with Hi-tensile bolt (300)Fixing, on Shui Pingliang (140), apply prestressing force, increase the weight waist rail of the hardness of Shui Pingliang (140).
The sustainable cladding plate that applies counter-force of the present invention that below explanation has foregoing to form is used prestressed wale temporarilyConstruction.
If Figure 14 is to as shown in Figure 17, the sustainable cladding plate that applies counter-force of the present invention is used the construction method of prestressed wale temporarilyBe: with the plumb pile (110) of certain spacing; Waist rail (120) through plumb pile (110) is set; Fixing, support waleThe bearing (130) of cladding plate temporary facility waist rail (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; At Shui Pingliang(140) the weight prestressing steel fixed support (150) that two ends are fixedly installed; At weight prestressing steel fixed support (150)The middle prestressing steel support the arranging prestressing force introducing equipment (160) of holding concurrently; Be fixedly installed on fixing of weight prestressing steelFrame and the prestressing steel bearing prestressing steel (170) on prestressing force introducing equipment (160) of holding concurrently; At two of Shui Pingliang (140)Hold the prestressing steel fixed part (180) of bonding higher beam to form. In advance should to weight from prestressing steel fixed part (180)The hold concurrently prestressing force of top of prestressing force introducing equipment (160) of power steel bearing is led steel wire prestressing steel (170) is set, with in advance shouldThe hydraulic jacking device of power steel fixed part (180) applies post-tension of pre-stress prestressing steel (170) for the first time, weightPrestressing steel bearing prestressing force introducing equipment (160) hydraulic jacking device (250) of holding concurrently up promotes after-applied pre-for the second timeStress is to prestressing steel (170).
At this, weight prestressing steel fixed support (150) is that all shapes are columnar steel constructions, by certain thicknessBase plate (151); Certain position on the top of base plate (151) arranges seat supports plate (152); Base plate (151) and bearing prop upThe vertical panel (153) that fagging (152) vertically forms as one; With vertical panel (153) one side protrude protruding plate (154); Hang downThe inner side of straight plate (153) forms the space of given shape, and by gripper shoe (190), the consolidating of pressing plate (200), prestressing steelBonding part (180), for maintaining the formation such as fixed part (220) of prestressing steel of management.
And the top of water Ping Liang (140) is used high strength I beam (230), bonding water Ping Liang (140) and high strength I beam(230), apply after initial flexing toward the opposite direction of the upper load using of high strength I beam (230), at high strength I beam (230) and waterPing Liang applies prestressing force on (140).
And the above-mentioned prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is by the certain bits on Shui Pingliang (140)Be set up taking high-strength bolt (300) as the vertically disposed fixed position of unit (240); On the ad-hoc location of fixed position (240)The hydraulic jacking device (250) arranging; Fixed position (240) top arranges prestressing steel (170), hydraulic jacking device pastUpper promotion applies prestressing force to prestressing steel (170), inserts the fixed part movable part that more than 1/2 rear restriction moves left and right(260); Bolt (270) is adjusted in the displacement that is connected and fixed up and down portion (240) and movable part (260); In the upper end of movable part (260)The PS that the given shape of side forms leads the formations such as steel wire (280).
According to the present invention, the sustainable cladding plate that applies counter-force is to arrange multiple one by the construction method of prestressed wale temporarilyThe plumb pile (110) of determining deviation; Arrange and be fixedly installed multiple waist rail (120) through plumb pile (110); Between waist rail (120)Be fixedly installed in the interim waist rail of cladding plate (100) of rectangular bearing (130), waist rail (120) Shui Pingliang center is bonding high-strengthDegree I beam (230) applies initial flexing, becomes and imports prestressed waist rail, and the both ends of waist rail (120) arrange and water Ping Liang(140) the similar weight prestressing steel fixed support (150) of deck-molding, between the whole district of waist rail (120), upper end is vertical pastes necessarilyThe weight prestressing steel bearing of the spacing prestressing force introducing equipment (160) of holding concurrently, weight prestressing steel fixed support (150) andThe weight prestressing steel bearing inner prestressing steel (170) that inserts of prestressing force introducing equipment (160) of holding concurrently, with load and displacement canThe hydraulic system of the hydraulic jacking device (250) regulating is drawn the PS steel at the two ends of Zhang Chongliang prestressing steel fixed support (150)Line (170) imports prestressing force for the first time, is fixedly installed after waist rail (120) at the weight prestressing steel bearing prestressing force of holding concurrently and imports and establishStandby (160) arrange hydraulic jacking device (250), import prestressing force for the second time and arrive after hydraulic jacking device (250) is up promotedPrestressing steel (170), continues the variation of corresponding soil pressure in construction, at the two ends of weight prestressing steel fixed support (150)Continue to draw or remove prestressing steel (170), the weight prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently continues upOr down can adjust at any time prestressed device.
Become the sustainable prestressing force long span footpath waist rail that applies counter-force, the inscape of above-mentioned waist rail (120) has weight pre-Stress steel fixed support (150), the Shui Pingliang (140) that applies initial flexing, the weight prestressing steel bearing prestressing force of holding concurrently is ledEnter equipment (160), prestressing steel (170); Weight prestressing steel fixed support (150) is by prestressing steel fixed part(180), ground pressing plate (200), gripper shoe (190), maintains the compositions such as management prestressing steel fixed part (220), wherein weightThe strong point (130) that does bearing above of prestressing steel fixed support (150).
And above-mentioned water Ping Liang (140) is at the upper bonding high-tenacity I beam (230) of general water Ping Liang (140), forms and makesImport the initial flexing water Ping Liang of initial Buckling Loads in the other direction with load.
Further, the weight prestressing steel bearing prestressing force introducing equipment (160) of holding concurrently is fixing by fixing water Ping Liang (140)Portion (240); Hydraulic jacking device (250); The movable part (260) up promoting according to hydraulic jacking device (250), connects solidBonding part (240) and movable part (260), bolt (270) composition is adjusted in the displacement of fixing movable part (260). And, movable part(260) upper end has PS to lead steel wire (280), and fixed part (240) below optionally forms to aim at adjusts bearing (310), and formsPrestressing steel (170) and prestressing steel gland (320).
The cladding plate that applies counter-force as sustainable in above-mentioned the present invention who forms by the construction method of prestressed wale is temporarilyWeight PS steel wire fixed support (150), the horizontal beam (140) that imports initial flexing, weight prestressing steel bearing are held concurrently and in advance shouldPower introducing equipment (160), PS steel wire (170) consist of after one, bracing frame (130) spacing of traditional cladding plate temporary facility waist rail(100) be 2～3m, but utilize the sustainable cladding plate that applies counter-force of the present invention to use prestressed wale (P) to be widened to temporarily15～30m, can reduce by 70% bracing frame (130) steel demand than the interim waist rail of traditional cladding plate, can be described as a woundNew cladding plate temporary construction method.
Above-mentioned water Ping Liang (140) uses the bonding water Ping Liang of high strength I beam (230) (140) on the water Ping Liang of general I beamWith high strength I beam (230), apply after initial flexing with working load and opposite direction, fixing with Hi-tensile bolt (300), at waterPing Liang (140) applies prestressing force, has increased the weight waist rail of the hardness of Shui Pingliang (140).
Detailed description of the invention 3: can apply the prestressing force long span footpath light weight waist rail that appends counter-force
Figure 18 illustrates the sustainable cladding plate that applies counter-force of the present invention and uses temporarily the stravismus of prestressed wale the 3rd case study on implementationFigure, Figure 19 illustrates the sustainable cladding plate that applies counter-force of the present invention and uses temporarily the front elevation of prestressed wale the 3rd case study on implementation, Figure 20The sustainable cladding plate that applies counter-force of diagram the present invention is used the plane of prestressed wale the 3rd case study on implementation temporarily, and Figure 21 illustrates thisInvent the sustainable cladding plate that applies counter-force and use the exploded perspective view of prestressed wale the 3rd case study on implementation temporarily.
As shown in the figure, to use prestressed wale (P) be with certain spacing to the sustainable cladding plate that applies counter-force of the present invention temporarilyPlumb pile (110); Waist rail (120) through plumb pile (110) is set; At cladding plate temporary facility waist fixing, support waleThe bearing (130) of beam (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; Be fixedly installed at Shui Pingliang (140) two endsLight weight prestressing steel fixed support (150a); The light weight arranging in the middle of light weight prestressing steel fixed support (150a) is pre-The stress steel bearing prestressing force introducing equipment (160a) of holding concurrently; Be fixedly installed on light weight prestressing steel fixed support (150a) and lightThe prestressing steel (170) that amount prestressing steel bearing is held concurrently on prestressing force introducing equipment (160a); At the two ends of Shui Pingliang (140)The prestressing steel fixed part (180) of the bonding beam higher than water Ping Liang (140).
At this, light weight prestressing steel fixed support (150a) is that all shapes are the steel constructions of lineal hexahedral, by sideFace is set to the gripper shoe (190a) of slanted asymmetric; Ground pressing plate (200a) with gripper shoe (190a) formation level; Press with groundThe formations such as the prestressing steel fixed part (210a) that plate (200a) level forms as one.
And above-mentioned light weight prestressing steel bearing is held concurrently prestressing force introducing equipment (160a) by Shui Pingliang (140)On ad-hoc location taking high-strength bolt (300) as the vertically disposed fixed part of unit (240); The ad-hoc location of fixed part (240)The hydraulic jacking device (250) of upper setting; Fixed part (240) top arranges prestressing steel (170), by hydraulic jacking deviceUp promote to apply prestressed movable part (260) to prestressing steel (170); Connect up and down and fixing fixed part (240) andBolt (270) is adjusted in the displacement of movable part (260); The PS that the inner side, upper end of movable part (260) forms given shape leads steel wire(280) formation such as. The strong point that can apply the prestressing force long span footpath weight waist rail that appends counter-force be can pitch enlargement to 10～30m, but the weight of unit waist rail is very heavy, is difficult at the scene using.
So need the light weight waist rail that the spacing between bearing (130) is 8～18m.
The sustainable prestressing force long span footpath light weight waist rail that applies counter-force is traditional interim bearing with cladding plate (100)(130) spacing can expand 8～18m to from 2～3m.
Can import the prestressing force long span footpath waist rail that appends counter-force is to have by light weight prestressing steel fixed support (150a), waterThe formation such as prestressing force introducing equipment (160a), prestressing steel (170) between Ping Liang (140), light weight prestressing steel bearing.
At this, light weight prestressing steel fixed support (150a) be by prestressing steel fixed part (210a), pressing plate(200a), the formation such as gripper shoe (190a), the strong point that does bearing above of light weight prestressing steel fixed support (150a).
And above-mentioned water Ping Liang (140) is made up of general I beam.
Further, the light weight prestressing steel bearing prestressing force introducing equipment (160a) of holding concurrently is consolidating by fixing water Ping Liang (140)Bonding part (240); Hydraulic jacking device (250); The movable part (260) up being promoted by hydraulic jacking device (250); Be connected and fixedPortion (240) and movable part (260), bolt (270) composition is adjusted in the displacement of fixing movable part (260), and movable part (260) top hasPrestressing force is led steel wire (280), and fixed part (240) below optionally has to aim at adjusts bearing (310), prestressing steel (170)With formations such as prestressing steel glands (320).
As above-mentioned the present invention who forms can import the cladding plate that appends counter-force, to use prestressed wale (P) be that light weight in advance should temporarilyPrestressing force introducing equipment (160a) group between power steel fixed support (150a), Shui Pingliang (140), light weight prestressing steel bearingBecome. Prestressing steel (170) is assembled into one and bearing (130) spacing can be expanded to 8～18m, than traditional coveringPlate uses waist rail (100) to reduce more than 50% bearing (130) temporarily. And bottom is excavated construction and can be reduced to greatest extentThe interference of bearing (130), can in very large range improve construction.
As above-mentioned, the 1st, 2 case study on implementation long span footpath weight waist rails and the 3rd case study on implementation long span footpath light weight waist rail be forImport prestressing force, guarantee the eccentric distance of prestressing steel (170), need certain waist rail height.
The hold concurrently height of prestressing force introducing equipment (160,160a) of the weight of waist rail or light weight prestressing steel bearing is higher, moreIncrease the eccentric effect of prestressing steel, can the soil pressure displacement in the time expanding across footpath and construction effectively substitute.
On the contrary, when this illustrates ground excavation construction, close on location to certain distance will be needed between the structures of settingFrom.
Overhead boundary line isolation and waist rail height general 1.5 to 2.0m after structure is set.
Can expand significantly the spacing of bearing (130), reduce more than 50% steel quantity, but according to waist railStructure, ground boundary line needs the space of certain distance to the place that structures are set be a restriction condition.
Below, the cladding plate that applies counter-force that is as sustainable in the present invention of above-mentioned Composition of contents temporarily with prestressed wale construct intoRow explanation.
If Figure 18 is to as shown in Figure 21, the sustainable cladding plate that applies counter-force of the present invention is used the construction method of prestressed wale temporarilyIt is the plumb pile (110) with certain spacing; Arrange and the Shui Pingliang (140) that passes waist rail (120); At fixing, support waleThe bearing (130) of cladding plate temporary facility waist rail (100) upper, the Shui Pingliang (140) through waist rail (120) is set; At vertical beam(140) the light weight prestressing steel fixed support (150a) that two ends are fixedly installed; ; Being fixedly installed on light weight prestressing steel fixesSupport (150a) and the light weight prestressing steel bearing prestressing steel (170) on prestressing force introducing equipment (160a) of holding concurrently; FormAt the prestressing steel fixed part (210a) at Shui Pingliang (140) two ends, from above-mentioned prestressing steel fixed part (210a) to light weightBetween prestressing steel bearing, the prestressing force of prestressing force introducing equipment (160a) top is led on steel wire (280) prestressing steel is set(170), with the hydraulic tensioning device after-applied prestressing force of stretch-draw prestressing force steel fixed part (210a) for the first time, fixing prestress steelMaterial (170), up promotes the light weight prestressing steel bearing prestressing force introducing equipment (160a) of holding concurrently with hydraulic jacking device secondInferior stretch-draw prestressing force steel apply prestressing force.
At this, all shapes of light weight prestressing steel fixed support (150a) are the steel constructions of lineal hexahedral, by sideFace arranges the asymmetrical gripper shoe (190a) of inclination; Form the ground pressing plate (200a) of level with gripper shoe; With ground pressing plate(200a) formations such as the prestressing steel fixed part (210a) that level forms as one.
And above-mentioned light weight prestressing steel bearing is held concurrently prestressing force introducing equipment (160a) by Shui Pingliang (140)On ad-hoc location with the vertically disposed fixed part of high-strength bolt (300) (240); On the ad-hoc location of fixed part (240), arrangeHydraulic jacking device (250); On fixed part (240) top, prestressing steel (170) is set, up the pushing away of hydraulic jacking deviceMove to prestressing steel (170) and apply prestressed movable part (260); The fixing fixed part (240) of upper and lower Lian Hejie and movable part(260) bolt (270) is adjusted in displacement; The PS that the inner side, upper end of movable part (260) forms given shape leads the structures such as steel wire (280)Become.
The strong point of the sustainable prestressing force long span footpath weight waist rail that applies counter-force is can be pitch enlargement to 10～30m,But the weight of unit waist rail is very heavy, be difficult at the scene using.
So needing the spacing of bearing (130) is also operable light weight waist rail in 8～18m.
The sustainable prestressing force long span footpath light weight waist rail that applies counter-force is traditional interim bearing with cladding plate (100)(130) spacing can expand 8～18m to from 2～3m.
At this, light weight prestressing steel fixed support (150a) be by prestressing steel fixed part (210a), pressing plate(200a), the formation such as gripper shoe (190a), the strong point that does bearing above of light weight prestressing steel fixed support (150a).
And above-mentioned water Ping Liang (140) is made up of general I beam.
Further, the light weight prestressing steel bearing prestressing force introducing equipment (160a) of holding concurrently is consolidating by fixing water Ping Liang (140)Bonding part (240); Hydraulic jacking device (250); The movable part (260) up promoting according to hydraulic jacking device (250); Connect solidBonding part (240) and movable part (260), bolt (270) composition is adjusted in the displacement of fixing movable part (260), on movable part (260)Portion has prestressing force to lead steel wire (280), and fixed part (240) below optionally has to aim at adjusts bearing (310), prestressing steelAnd the formation such as prestressing steel gland (320) (170).
It is pre-by light weight that the cladding plate that applies counter-force as sustainable in above-mentioned the present invention who forms is used prestressed wale (P) temporarilyPrestressing force introducing equipment (160a) etc. between stress steel fixed support (150a), Shui Pingliang (140), light weight prestressing steel bearingComposition. After being assembled into one, prestressing steel (170) bearing (130) spacing can be expanded to 8～18m, than traditionGeneral construction method can reduce more than 50% bearing (130).
And construction is excavated in bottom can reduce the interference of bearing (130) to greatest extent, can very on a large scale, improve and executeWork.
As above-mentioned, the 1st case study on implementation long span footpath weight waist rail and the 3rd case study on implementation long span footpath light weight waist rail are in order to leadEnter prestressing force, guarantee the eccentric distance of prestressing steel (170), need certain waist rail height. The weight of waist rail or light weightBetween prestressing steel bearing, the height of prestressing force introducing equipment (160,160a) is higher, more can increase the bias of prestressing steelEffect, can according to expand across footpath and when construction soil pressure displacement effectively substitute.
On the contrary, when this illustrates ground excavation construction, close on location to the structures that arrange are needed to certain distance.
While structure being set, need to arrive with ground boundary line 1.5 spacing of 2.0m waist rail height.
This can expand the spacing of bearing (130) to a great extent, reduces more than 50% steel quantity, but according to waistThe structure of beam, ground boundary line needs the space of certain distance to the place that structures are set be a restriction condition.
Detailed description of the invention 4: can import the prestressing force bottom girder light weight waist rail that appends counter-force
Figure 22 represents that the sustainable cladding plate that applies counter-force of the present invention uses the stravismus of prestressed wale the 4th case study on implementation temporarilyFigure, Figure 23 illustrates the sustainable cladding plate that applies counter-force of the present invention and uses temporarily the front elevation of prestressed wale the 4th case study on implementation, Figure 24The sustainable cladding plate that applies counter-force of diagram the present invention is used the plane of prestressed wale the 4th case study on implementation temporarily, and Figure 25 illustrates thisInvent the sustainable cladding plate that applies counter-force and use the exploded perspective view of prestressed wale the 4th case study on implementation temporarily.
As shown in the figure, the sustainable cladding plate that applies counter-force of the present invention uses prestressed wale (P) by with between certain temporarilyThe plumb pile (110) of distance; Arrange and the Shui Pingliang (140) that passes waist rail (120); Establish at cladding plate fixing, support wale temporarilyThe bearing (130) of executing waist rail (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; In the certain bits of Shui Pingliang (140)Put with Hi-tensile bolt (300) welding or bonding high strength I beam (230); Be fixedly installed simple light at high strength I beam two endsAmount prestressing steel fixed support (290); And be fixedly installed prestressing force between simple light weight prestressing steel fixed support (290)The compositions such as steel (170). At this, between simple light weight prestressing steel is fixing, all shapes of (290) are triangles, by oneFixed thickness and the base plate of amplitude (291); With base plate (291) rectangular ground of shape pressing plate (292); With base plate and ground pressing plate(292) gripper shoe (293) being obliquely installed; The structures such as the prestressing steel fixed part (294) being fixedly installed with ground pressing plate (292)Become.
And shorter than water Ping Liang (140) high strength I beam (230) length, with the bonding high strength I beam of water Ping Liang (140)(230) apply after initial flexing toward working load and opposite direction, with the powerful bonding after-applied prestressing force of Hi-tensile bolt (300).
Apply exactly the Shui Pingliang (140) of initial flexing.
And, on the top ad-hoc location of high strength I beam (230), be fixedly installed prestressing force and lead steel wire (295). In this useWhen prestressed wale, to there is certain distance with cladding plate breast boards position with by the structures of setting, could useful prestress steelMaterial (170) applies prestressed effect.
Between the structures of breast boards and setting, do not have under the surface condition of spacing, yet likely produce and can not use prestress steelMaterial (170) applies prestressed situation.
So need to dwindle the waist rail that applies prestressed wale height with prestressing steel.
So the 4th case study on implementation is the scheme that can significantly reduce waist rail.
If Figure 22 is to as shown in Figure 25, it is by simply with prestressed wale that the present invention can import the cladding plate that appends counter-force temporarilyLight weight prestressing steel fixed support (290), Shui Pingliang (140), prestressing steel form. Above-mentioned simple light weight prestressing forceSteel fixed support (290) be by prestressing steel fixed part (294), gripper shoe (293), pressing plate (292) formed, above-mentionedThe upper bonding high strength I beam (230) of water Ping Liang (140), forms toward the opposite direction of working load and applies prestressed initial flexing waterPing Liang, and formed by prestressing steel and prestressing steel gland.
At this, above-mentioned simple light weight prestressing steel fixed support (290), Shui Pingliang (140), prestressing steel assemblingAfter becoming one, can, the pitch enlargement to 10 of bearing～15m, reduce bearing more than 50% than traditional construction method.
And, the above-mentioned initial Buckling Loads of importing import the prestressing force bottom girder light weight waist depth of beam of appending counter-forceIn 1m left and right, can minimize cladding plate retaining wall and by the distance between the structures that arrange, utilize in raising soil, down townRate, and the weight of waist rail is also low weight distance between bearing (130) can be widened to 6～16m, is that an efficiency is highWaist rail.
Further, because importing initial Buckling Loads with the opposite direction of the working load of water Ping Liang (140), so than the height of waist railSpend its rigidity very strong.
And in geotechnique's construction, in the situation that the waist rail displacement of soil pressure is large overleaf, also can be pre-by simple light weightStress steel bracket (290) simply continues to apply prestressing force, than first, second and third case study on implementation manufacturing cost that reduced waist rail.
Also have produce becoming of waist rail according to the variation of soil pressure in construction time, also can be timely at prestressing steel(170) append importing prestressing force, innovative waist rail that can safe construction.
Below that the sustainable cladding plate that applies counter-force of the present invention forming as foregoing is used prestressed wale temporarilyThe explanation of construction.
If Figure 22 is to as shown in Figure 25, it is with one that the sustainable cladding plate that applies counter-force of the present invention is used prestressed wale (P) temporarilyThe plumb pile (110) of fixed spacing; Arrange and the Shui Pingliang (140) that passes waist rail (120); At cladding plate fixing, support waleThe bearing (130) of temporary facility waist rail (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; Shui Pingliang's (140)Hi-tensile bolt for ad-hoc location (300) welding or bonding high strength I beam (230); Be fixedly installed at high strength I beam two endsSimple light weight prestressing steel fixed support (290); And fixedly establish between simple light weight prestressing steel fixed support (290)Prestressing steel (170) composition of putting. Above add with hydraulic tensioning equipment at simple light weight prestressing steel fixed support (290)Gu prestressing steel (170) applies prestressing force at Shui Pingliang (140).
At this, between simple light weight prestressing steel is fixing, all shapes of (290) are triangles, by certain thicknessBase plate (291) with amplitude; With base plate (291) rectangular ground of shape pressing plate (292); With base plate and ground pressing plate (292) obliquelyGripper shoe (293) is set; The formations such as the prestressing steel fixed part (294) being fixedly installed with ground pressing plate (292).
And, shorter than water Ping Liang (140) high strength I beam (230) length, with the bonding high strength I beam of water Ping Liang (140)(230) toward working load with import after initial flexing in the other direction, bonding and apply prestressing force by Hi-tensile bolt (300) brute force.
At this, use when prestressed wale, cladding plate breast boards position and the structures of setting will be had after certain distance,Apply prestressing force and just can bring effect with applying prestressing steel (170).
Between the structures of breast boards and setting, do not having under the surface condition of spacing, yet likely producing and can not use importingThe situation of prestressed prestressing steel (170).
So need to dwindle the waist rail that applies prestressed wale height by prestressing steel (170).
Can be described as the scheme that significantly reduces waist rail height.
If Figure 22 is to as shown in Figure 25, it is by simply with prestressed wale that the present invention can import the cladding plate that appends counter-force temporarilyLight weight prestressing steel fixed support (290), Shui Pingliang (140), prestressing steel form, above-mentioned simple light weight prestressing forceSteel fixed support (290) be by prestressing steel fixed part (294), gripper shoe (293), pressing plate (292) formed, above-mentionedWater Ping Liang (140) is made up of general I beam, and the upper bonding high strength I beam (230) of above-mentioned water Ping Liang (140) is toward working load and negative sideTo applying prestressing force, form the initial flexing water Ping Liang of load.
At this, above-mentioned simple light weight prestressing steel fixed support (290), import initial flexing Shui Pingliang (140),After prestressing steel is assembled into one, can, pitch enlargement to the 6～16m of bearing (130), subtract than traditional construction methodFew more than (130) 50% bearing.
And the prestressing force bottom girder light weight waist depth of beam of the continued counter-force of the above-mentioned initial Buckling Loads of importing is at 1mLeft and right, can minimize cladding plate retaining wall and by the distance between the structures that arrange, improve land utilization ratio in down town, andAnd the weight of waist rail is also low weight can be widened to 6～16m the distance between bearing (130), is a high efficiency waist rail.
Also have because applying initial Buckling Loads in the other direction with the working load of water Ping Liang (140), so than waist depth of beamIts rigidity is very strong.
In the situation that in geotechnique's construction, the waist rail displacement of back side soil pressure is large, also can prop up with simple light weight prestressing steelFrame (290) continues to apply prestressing force, reduces the manufacturing cost of waist rail than the 1st, 2,3 case study on implementation. Waist rail described above is at waistOn beam, use prestressing steel (170), reduce to a great extent the quantity of bearing (130), improve economy, expand between bearing(130) distance, can allow excavation construction there is no the obstacle of bearing (130), is easy to excavated earth and structures are set.
Further, in construction, produce waist rail according to the variation of soil pressure displacement time also can be timely at prestressing steel(170) continue to apply prestressing force, be one can safe construction innovative waist rail.
Detailed description of the invention 5: can import the prestressing force bottom girder light weight waist rail that appends counter-force
Figure 26 illustrates the sustainable cladding plate that applies counter-force of the present invention and uses temporarily the stravismus of prestressed wale the 5th case study on implementationFigure, Figure 27 illustrates the sustainable cladding plate that applies counter-force of the present invention and uses temporarily the front elevation of prestressed wale the 5th case study on implementation, Figure 28The sustainable cladding plate that applies counter-force of diagram the present invention is used the plane of prestressed wale the 5th case study on implementation temporarily, and Figure 29 illustrates thisInvent the sustainable cladding plate that applies counter-force and use the exploded perspective view of prestressed wale the 5th case study on implementation temporarily, Figure 30 illustrates thisThe bright sustainable cladding plate that applies counter-force arranges oblique drawing of the state with prestressed wale temporarily.
As shown in the figure, the sustainable cladding plate that applies counter-force of the present invention uses prestressed wale (P) by with between certain temporarilyThe plumb pile (110) of distance; Arrange and the Shui Pingliang (140) that passes waist rail (120); Establish at cladding plate fixing, support wale temporarilyThe bearing (130) of executing waist rail (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; In the certain bits of Shui Pingliang (140)Put with Hi-tensile bolt (300) welding or bonding high strength I beam (230); Be fixedly installed simple light at high strength I beam two endsAmount prestressing steel fixed support (290); And what between simple light weight prestressing steel fixed support (290), be fixedly installed in advance shouldThe compositions such as power steel (170).
At this, between simple light weight prestressing steel is fixing, all shapes of (290) are triangles, by certain thicknessBase plate (291) with amplitude; With base plate (291) rectangular ground of shape pressing plate (292); Tilt to establish with base plate and ground pressing plate (292)The gripper shoe (293) of putting; The formations such as the prestressing steel fixed part (294) being fixedly installed with ground pressing plate (292).
And shorter than water Ping Liang (140) high strength I beam (230) length, with the bonding high strength I beam of water Ping Liang (140)(230) import after initial flexing toward working load and opposite direction, with the powerful bonding after-applied prestressing force of Hi-tensile bolt (300).
On the top ad-hoc location of high strength I beam (230), be fixedly installed PS and lead steel wire (295).
At this, while using prestressed wale, to there is certain distance with cladding plate breast boards position with by the structures of setting,Applying prestressing force with prestressing steel (170) just can produce effect.
Between the structures of breast boards and setting, do not have under the surface condition of spacing, yet likely produce and can not use prestressing forceSteel (170) apply prestressed situation.
So need to dwindle the waist rail that applies prestressed wale height with prestressing steel.
This is the arrangement and method for construction that can significantly reduce waist rail.
If Figure 26 is to as shown in Figure 30, it is by simply with prestressed wale that the present invention can import the cladding plate that appends counter-force temporarilyLight weight prestressing steel fixed support (290a), form by prestressing force with the two ends of prestressing steel (170) and water Ping Liang (140)Steel fixed part (294), gripper shoe (293), the simple light weight prestressing steel fixed support that forms of pressing plate (292)(290), form prestressing force with the center of the high strength I beam (230) of above-mentioned water Ping Liang (140) and lead steel wire (295), and form auxiliaryPrestressing steel (330), becomes continuing to apply and in advance should of the inscape of the 4th case study on implementation and auxiliary prestressing steel (330)The structure of power. The waist rail of above the 5th case study on implementation is that common applicable prestressing steel (170) on waist rail, significantly subtractsThe quantity of bearing (130) less, improves economy, and bearing (130) spacing is widened to 8～18m, excavates construction and can not prop upThe obstacle of seat (130), is convenient to excavated earth and structures is set.
Also can be timely at prestressing steel while also having the displacement that produces waist rail according to the variation of soil pressure in construction(170) continue to apply prestressing force, the innovative waist rail of constructing that can be safe.
Below that the sustainable cladding plate that applies counter-force of the present invention forming as foregoing is used prestressed wale temporarilyThe explanation of construction.
If Figure 26 is to as shown in Figure 30, the sustainable cladding plate that applies counter-force of the present invention use temporarily prestressed wale (P) be by withThe plumb pile (110) of certain spacing; Shui Pingliang (140) through waist rail (120) is set; At cladding plate fixing, support waleThe bearing (130) of temporary facility waist rail (100) is upper, and the Shui Pingliang (140) through waist rail (120) is set; Shui Pingliang's (140)Hi-tensile bolt for ad-hoc location (300) welding or bonding high strength I beam (230); Be fixedly installed letter at high strength I beam two endsSingle light weight prestressing steel fixed support (290); And be fixedly installed between simple light weight prestressing steel fixed support (290)The compositions such as prestressing steel (170). Upper with the stretch-draw of hydraulic tensioning equipment at simple light weight prestressing steel fixed support (290)Prestressing steel (170) applies prestressing force on Shui Pingliang (140).
At this, all shapes of simple light weight prestressing steel fixed support (290) are triangles, by certain thicknessBase plate (291) with amplitude; With base plate (291) rectangular ground of shape pressing plate (292); Tilt to establish with base plate and ground pressing plate (292)The gripper shoe (293) of putting; The formations such as the prestressing steel fixed part (294) being fixedly installed with ground pressing plate (292).
And shorter than water Ping Liang (140) high strength I beam (230) length, with the bonding high strength I beam of water Ping Liang (140)(230) apply after initial flexing toward working load and opposite direction, with the powerful bonding after-applied prestressing force of Hi-tensile bolt (300).
Further, on the top ad-hoc location of high strength I beam (230), be fixedly installed PS and lead steel wire (295). Use prestressing force waistLiang Shi, will have certain distance with cladding plate breast boards position with by the structures of setting, the useful prestressing steel of ability (170)Apply prestressed effect.
Between the structures of breast boards and setting, do not have under the surface condition of spacing, yet likely produce and can not use prestressing forceSteel (170) apply prestressed situation.
So need to can dwindle the waist rail that applies prestressed wale height by prestressing steel (170).
This is the scheme that can significantly reduce waist rail height.
If Figure 26 is to as shown in Figure 30, according to the present invention, the sustainable cladding plate that applies counter-force is used the construction of prestressed wale temporarilyMethod is by prestressing steel fixed support (290), Shui Pingliang (140), prestressing steel (170), Shui Pingliang (140) two endsPrestressing steel fixed part (294), pressing plate (292), gripper shoe (293) etc. form simple prestressing steel fixed support(150a), form prestressing force with the center of the high strength I beam (230) of above-mentioned water Ping Liang (140) and lead steel wire (295), and form auxiliaryHelp prestressing steel (330), can continue to apply pre-answering according to the inscape of the 4th case study on implementation and auxiliary prestressing steel waist railPower.
The waist rail of above the 5th case study on implementation is common applicable prestressing steel (170) on waist rail, significantly reducesThe quantity of bearing (130), the economy that improves,, expand standoff distance 8～18m, excavate construction and can there is no the barrier of bearing (130)Hinder, be convenient to excavated earth and structures are set.
Further, in construction, produce waist rail according to the variation of soil pressure displacement time also can be timely at prestressing steel(170) continue to apply prestressing force, the innovative waist rail of constructing that can be safe.
Symbol description
100: use cladding plate waist rail temporarily
110: plumb pile
120: waist rail
130: bearing
140: Shui Pingliang
150: weight PS steel wire fixed support
150a: light weight PS steel wire fixed support
151: base plate
152: seat supports plate
153: vertical panel
154: protruding plate
160: weight PS steel wire bearing hold concurrently prestressing force import equipment
160a: light weight PS steel wire bearing hold concurrently prestressing force import equipment
170:PS steel wire
180:PS steel wire fixed part
180a:PS steel wire fixed part
190: gripper shoe
190a: gripper shoe
200: ground pressing plate
200a: ground pressing plate
220: maintain management PS steel wire fixed part
230: high strength I beam
240: fixed part
250: hydraulic jacking device
260: movable part
270: bolt is adjusted in displacement
280:PS leads steel wire
290: easy light weight PS steel wire fixed support
291: base plate
292: ground pressing plate
293: gripper shoe
294:PS steel wire fixed part
300: Hi-tensile bolt
310: aim at and adjust bearing
320:PS steel wire gland
330: auxiliary PS steel wire
P: can import the interim cladding plate prestressed wale of using that appends counter-force.

Claims (4)

1. the sustainable cladding plate that applies counter-force is used a prestressed wale temporarily, and it has: what arrange with certain spacing is verticalStake (110), through the waist rail (120) of described plumb pile (110) and through the Shui Pingliang (140) of described waist rail (120); Be used forBearing (130) fixing and that support described waist rail (120) is arranged in described cladding plate waist rail; At described water Ping Liang (140) two endsThe weight PS steel wire fixed support (150) being fixedly installed; The weight arranging in the middle of described weight PS steel wire fixed support (150)The amount PS steel wire support prestressing force of holding concurrently imports equipment (160); Ride over described weight PS steel wire fixed support and described weight PS steel wireThe bearing prestressing force of holding concurrently imports the PS steel wire (170) that be fixedly installed of equipment on (160); Be formed in two of described water Ping Liang (140)PS steel wire fixed part (180) end and that position Bi Gaishui Ping Liang (140) is higher; The described weight PS steel wire bearing prestressing force of holding concurrentlyImporting equipment (160) is on the precalculated position on Shui Pingliang (140), by bolt and vertically disposed fixed part (240); At thisHydraulic jacking device (250) is set on the precalculated position of fixed part (240); And on this fixed part (240) top, PS steel wire is set(170), up promote to apply prestressed movable part (260) to PS steel wire (170) by hydraulic jacking device (250), fixingPortion inserts the movable part (260) that limits its left and right; The displacement that connects up and down this fixed part (240) and this movable part (260) is adjustedWhole bolt (270); The inner side, upper end of movable part (260) forms by predetermined shape.
2. waist rail according to claim 1, is characterized in that: the overall shape of described weight PS steel wire fixed support (150)Shape is columnar steel construction; And there is the base plate (151) of predetermined thickness; Arrange from the position on the top of described base plate (151)There is seat supports plate (152); With described base plate (151) vertical panel that form as one vertical with described seat supports plate (152)(153); Be protruding with protruding plate (154) with a side of described vertical panel (153); The inner side formation of vertical panel (153) has predeterminedThe space of shape; Described waist rail also has gripper shoe (190), and ground pressing plate (200) maintains management PS steel wire fixed part(220)。
3. the sustainable cladding plate that applies counter-force is used a prestressed wale temporarily, and it has: with hanging down of the setting of certain spacingStraight stake (110), through the waist rail (120) of described plumb pile (110) and through the Shui Pingliang (140) of described waist rail (120); WithBe arranged in described cladding plate waist rail in bearing (130) fixing and that support described waist rail (120); At described water Ping Liang (140) twoThe light weight PS steel wire fixed support (150a) that end is fixedly installed; In the middle of described light weight PS steel wire fixed support (150a), arrangeLight weight PS steel wire support hold concurrently prestressing force import equipment (160a); Ride over described light weight PS steel wire fixed support and described light weight PSThe steel wire bearing prestressing force of holding concurrently imports the PS steel wire (170) that be fixedly installed of equipment on (160a); Be formed in described water Ping Liang (140)Two ends, and position Bi Gaishui Ping Liang (140) higher PS steel wire fixed part (180); Described light weight PS steel wire bearing is held concurrently pre-It is by the vertically disposed fixed part of bolt (240) on the precalculated position on Shui Pingliang (140) that stress imports equipment (160a);The hydraulic jacking device (250) arranging on the precalculated position of this fixed part (240); This fixed part (240) top arranges PS steel wire(170), up promote to apply prestressed movable part (260) to PS steel wire (170) by hydraulic jacking device (250); Up and downBolt (270) is adjusted in the displacement that connects this fixed part (240) and this movable part (260); The inner side, upper end of movable part (260)Form by predetermined shape.
4. waist rail according to claim 3, is characterized in that: the overall shape of described light weight PS steel wire fixed support (150a)Shape is the steel construction of lineal hexahedral; And have by the asymmetrical gripper shoe (190a) that is set to inclination in side; With describedFagging (190a) forms the ground pressing plate (200a) of level; The PS steel wire fixed part forming as one with ground pressing plate (200a) level(210a)。
CN201410642678.XA 2014-11-14 2014-11-14 The sustainable cladding plate that applies counter-force is used prestressed wale temporarily Expired - Fee Related CN104652447B (en)

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CN1051129C (en) * 1996-01-23 2000-04-05 冶金工业部建筑研究总院 Anchoring method for prestressed anchor line wall-protecting pile without waist beam
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CN201228356Y (en) * 2008-06-10 2009-04-29 北京六建集团公司 Pit anchored pile-anchor breast wall concrete middle beam structure
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