CN105544966A - Formwork reinforcing system and construction method for large-angle veneer fair-faced inclined wall - Google Patents
Formwork reinforcing system and construction method for large-angle veneer fair-faced inclined wall Download PDFInfo
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- CN105544966A CN105544966A CN201610066641.6A CN201610066641A CN105544966A CN 105544966 A CN105544966 A CN 105544966A CN 201610066641 A CN201610066641 A CN 201610066641A CN 105544966 A CN105544966 A CN 105544966A
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- framed bent
- sloping core
- cross bar
- bar
- faced
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
Abstract
The invention discloses a formwork reinforcing system and construction method for a large-angle veneer fair-faced inclined wall. The formwork reinforcing system comprises a back ridge structure, a vertical guide rail, first through connection cross rods, second through connection cross rods and an inclined wall framed bent. The vertical guide rail is mounted on the back ridge structure. The first through connection cross rods are mounted on the vertical guide rail through height limiting blocks. The second through connection cross rods are mounted on a foundation face through limiting ground anchors. The inclined wall framed bent comprises framed bent inclined rods, framed bent vertical rods and framed bent cross rods. The top ends of the framed bent inclined rods are connected with the first through connection cross rods through first U-type top supports, and the bottom ends of the framed bent inclined rods are connected with the second through connection cross rods through U-type bottom supports. The bottom ends of the framed bent vertical rods are fixed to the foundation face, and the top ends of the framed bent vertical rods are connected with the first through connection cross rods through second U-type top supports. The first through connection cross rods arranged on the vertical guide rail are in clamped connection with the framed bent vertical rods and the framed bent inclined rods, and therefore on the one hand, axial stress for supporting the inclined rods and the vertical rods is met; on the other hand, the vertical guide rail and the inclined wall framed bent can be separated.
Description
Technical field
The present invention relates to the realm of building construction, particularly relate to formwork reinforcement system and the construction method of the fair-faced sloping core of a kind of wide-angle.
Background technology
The sloping core of multi-angle, for the lifting of template, is removed and is had larger difficulty, and support system not only will reach adjustment template angle stability also will bear body of wall pressure and thrust.Wide-angle clear water sloping core produce larger level divide to power, how the stressed node of reliable design, makes reinforcement system " motionless ", is the key factor that sloping core clear water effect ensures.
Summary of the invention
Technical problem to be solved by this invention is to provide one not only can reach adjustment template angle stability, can also bear formwork reinforcement system and the construction method of the fair-faced sloping core of wide-angle of sloping core pressure and thrust.
For realizing above-mentioned technique effect, the invention discloses the formwork reinforcement system of the fair-faced sloping core of a kind of wide-angle, comprising:
Back cord structure, is located at the back side of clear water sloping core template;
Vertical guide, is installed on the back side of described back cord structure;
First switching cross bar, is installed in described vertical guide by height limit block;
Second switching cross bar, is installed on base surface by spacing earth anchor;
Sloping core framed bent, the framed bent cross bar comprising framed bent brace, framed bent vertical rod and be connected between framed bent brace and described framed bent vertical rod; The top of described framed bent brace is connected by the first U-shaped jacking and described first cross bar of transferring, and the bottom of described framed bent brace is passed through U-shaped collet and described second cross bar of transferring and is connected; The bottom of described framed bent vertical rod is fixed on base surface, and the top of described framed bent vertical rod is connected by the second U-shaped jacking and described first cross bar of transferring.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, described back cord structure comprises Form board frame, be located at the horizontal bar back cord in described Form board frame and be located in described Form board frame and perpendicular muscle back cord cross-coupled with described horizontal bar back cord; Described back cord structure also comprises the multiple tracks connecting cross beam that interval is laid, and the two ends of described connecting cross beam are connected with described Form board frame, and described vertical guide is installed on described connecting cross beam by HOOK BOLTS.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, described connecting cross beam is channel steel cross beam; Described vertical guide is double flute steel guide rail, comprises the first U-bar guide rail and the second U-bar guide rail; Described HOOK BOLTS comprises to be located at thread segment between described first U-bar guide rail and the second U-bar guide rail, to be screwed together in screwing up part and being located at the eave tile portion of described thread segment one end on described thread segment, described eave tile portion hooks and is located on the wing plate of described channel steel cross beam, described thread segment is provided with limiting plate, and described limiting plate is resisted against on described first U-bar guide rail and described second U-bar guide rail described screwing up when part is tightened.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, described height limit block welding is in described vertical guide, described first switching cross bar is resisted against the below of described height limit block, and described framed bent vertical rod is supported in the below of described first switching cross bar by described second U-shaped jacking.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, the top of described framed bent vertical rod is provided with the first internal thread screw thread, and described second U-shaped jacking is screwed together on described first internal thread screw thread by the first screw rod.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, described second U-shaped jacking comprises the first base plate welded with described first screw rod and the first side plate being located at described first base plate both sides, described first side plate offers for and described first to transfer the first U-shaped groove that cross bar engages.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, described spacing earth anchor is anchored on base surface, and described second switching cross bar is resisted against on the side regarding to described clear water sloping core template of described spacing earth anchor.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, the top of described framed bent brace is provided with the second internal thread screw thread, the bottom of described framed bent brace is provided with the 3rd internal thread screw thread, described first U-shaped jacking is screwed together on described second internal thread screw thread by the second screw rod, and described U-shaped collet is screwed together on described 3rd internal thread screw thread by the 3rd screw rod.
The formwork reinforcement system of the fair-faced sloping core of described wide-angle further improves and is, described first U-shaped jacking comprises the second base plate welded with described second screw rod and the second side plate being located at described second base plate both sides, and described second side plate is provided with for and described first transfers the second U-shaped groove that cross bar engages; Described U-shaped collet comprises the 3rd base plate welded with described 3rd screw rod and the 3rd side plate being located at described 3rd base plate both sides, and described 3rd side plate is provided with for and described second transfers the 3rd U-shaped groove that cross bar engages.
The invention also discloses the construction method of the fair-faced sloping core of a kind of wide-angle, comprise step:
Set up sloping core framed bent, be included in and base surface install framed bent vertical rod, the second switching cross bar is installed by spacing earth anchor on base surface, cross bar of being transferred the bottom of framed bent brace and described second by U-shaped collet is connected, between described framed bent vertical rod with described framed bent brace, is connected framed bent cross bar;
In the top of described framed bent brace and described framed bent vertical rod, vertical guide is installed, comprise vertical guide temporarily in place, in described vertical guide, to be installed first by height limit block transfers that cross bar, cross bar of being transferred on the top of described framed bent brace and described first by the first U-shaped jacking are connected, cross bar of being transferred on the top of described framed bent vertical rod and described first by the second U-shaped jacking is connected;
Back cord structure is installed in described vertical guide;
Clear water sloping core template is installed in described back cord structure;
Colligation sloping core reinforcing bar in described clear water sloping core template;
Sloping core concrete is built on described sloping core reinforcing bar.
The present invention is owing to have employed above technical scheme, make it have following beneficial effect: adopt the scheme that the full hall frame of steel tube fastener combines in conjunction with double flute steel guide rail, at the back side of clear water sloping core template, vertical guide is installed, utilization arranges the first switching cross bar and is connected with the top of framed bent vertical rod and framed bent cross bar in vertical guide, connected node place adopts U-shaped jacking and first cross bar of transferring to be connected together, installation second switching cross bar on base surface is utilized to be connected with the bottom of framed bent brace, connected node place adopts U-shaped collet and second to be connected cross bar and is connected together, meet the axially loaded of knighthead and supported rod erecting on the one hand, realize departing between vertical guide and sloping core framed bent on the other hand, the lifting and the secondary that realize clear water sloping core template utilize.
Accompanying drawing explanation
Fig. 1 is the structural representation of the formwork reinforcement system of the fair-faced sloping core of a kind of wide-angle of the present invention.
Fig. 2 is the plane structure schematic diagram of bottom support in the formwork reinforcement system of the fair-faced sloping core of a kind of wide-angle of the present invention.
Fig. 3 is the plane structure schematic diagram of clear water sloping core template in the formwork reinforcement system of the fair-faced sloping core of a kind of wide-angle of the present invention.
Fig. 4 is the A-A schematic cross-section of Fig. 3.
Fig. 5 is the mounting structure schematic diagram of HOOK BOLTS in the formwork reinforcement system of the fair-faced sloping core of a kind of wide-angle of the present invention.
Fig. 6 is the mounting structure schematic diagram of the first switching cross bar in the formwork reinforcement system of the fair-faced sloping core work of a kind of wide-angle of the present invention.
Fig. 7 is the A view of Fig. 6.
Fig. 8 is the mounting structure schematic diagram of the second switching cross bar in the formwork reinforcement system of the fair-faced sloping core of a kind of wide-angle of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the present invention is further detailed explanation.
First, consult shown in Fig. 1 and Fig. 2, the formwork reinforcement system of the fair-faced sloping core of a kind of wide-angle of the present invention forms primarily of back cord structure 11, vertical guide 12, first switching cross bar 13, second switching cross bar 14 and sloping core framed bent 15, be mainly used in installing and reinforcing of the metope template of each sloping core of lower young, suitable for reading oblique barrel structure greatly, because its Stability Analysis of Structures, support effect are good, be particularly useful for the fair-faced sloping core construction of wide-angle.
Coordinate shown in Fig. 3 and Fig. 4, back cord structure 11 is located at the back side of clear water sloping core template 111, and clear water sloping core template 111 generally adopts Visa (WISA) construction formwork that 18mm is thick; Back cord structure comprises Form board frame 112 further, be located at the horizontal bar back cord 113 in Form board frame 112 and be located in Form board frame 112 and perpendicular muscle back cord 114 cross-coupled with horizontal bar back cord 113.Form board frame 112 can adopt the square steel pipe combination frame of 40mm × 40mm × 3mm and 60mm × 60mm × 3mm; Horizontal bar back cord 113 can adopt the square steel pipe of 40mm × 100mm × 3mm, spacing be 40mm to 370mm not etc.; Perpendicular muscle back cord 114 can adopt the square steel pipe of 40mm × 100mm × 3mm, and spacing is 700mm, and junction can adopt D10 harness cord type high-strength bolt to connect.
In conjunction with sloping core feature, need to transform the back cord structure of clear water sloping core template 111, one connecting cross beam 115 is laid at interval of about 1m at clear water sloping core template 111 back side of clear water sloping core template 11, this connecting cross beam 115 adopts the [channel steel cross beam of 100, the inner side wing plate of this channel steel cross beam and the back side of clear water sloping core template 111 are welded and fixed, the two ends of this channel steel cross beam are welded with the Form board frame 112 of back cord structure 11, and sound construction, integral rigidity is large.
Coordinate shown in Fig. 2 and Fig. 5, vertical guide 12 is double flute steel guide rail, comprise the first U-bar guide rail side by side and the second U-bar guide rail, on the horizontal bar back cord 113 that the inner side wing plate of the first U-bar guide rail and the second U-bar guide rail is vertically installed on clear water sloping core template 111 back side and connecting cross beam 115.In sloping core, outside is clear-water concrete effect, there is a large amount of clear water segmentation cicada sutures, the layout of vertical guide 12 must follow three principles: one is the one-sided drawknot screw hole that vertical guide 12 need avoid in clear water sloping core template 111, two is left side and right sides that vertical guide 12 need avoid Form board frame 112, approximately be positioned at vertical vertical cicada seam 150mm ~ 500mm range areas, both sides, three is meet force request.
In the present invention, first U-bar guide rail and the second U-bar guide rail are installed on the connecting cross beam 115 at clear water sloping core template 111 back side by HOOK BOLTS 16, connecting cross beam 115 is channel steel cross beam, HOOK BOLTS 16 comprises the thread segment 160 be located between the first U-bar guide rail and the second U-bar guide rail, be screwed together in screwing up part 161 and being located at the eave tile portion 162 of this thread segment 160 one end on this thread segment 160, eave tile portion 162 hooks and is located on the outside wing plate of channel steel cross beam, the thread segment 160 of HOOK BOLTS 16 is provided with limiting plate 163, this limiting plate 163 is resisted against when screwing up part 161 and tightening on the first U-bar guide rail and the second U-bar guide rail, thus utilize HOOK BOLTS 16 by vertical guide 12 and connecting cross beam 115 effectively secured fit, can also prevent the back cord structure of clear water sloping core template 111 from gliding along vertical guide 12 because of gravity.
Shown in composition graphs 6 and Fig. 7, the first switching cross bar 13 is installed in vertical guide 12 by height limit block 18; At the differing heights welding and assembling height limited block 18 of vertical guide 12, this height limit block 18 can adopt the short square steel pipe of 60mm × 60mm × 5mm, is welded and fixed with the outside wing plate of the first U-bar guide rail and the second U-bar guide rail; First switching cross bar 13 is resisted against the below of height limit block 18.
Again shown in composition graphs 8, the second switching cross bar 14 is installed on base surface by spacing earth anchor 19; Spacing earth anchor 19 is anchored on base surface, and the second switching cross bar 14 is resisted against on the side regarding to clear water sloping core template 111 of spacing earth anchor 19.
In conjunction with the feature of sloping core, the reinforcing according to on drawing measures, and for position and the length of the first switching cross bar 13 and the second switching cross bar 14, lays in strict accordance with figure paper length.
Consult shown in Fig. 1, sloping core framed bent 15 is made up of framed bent brace 151, framed bent vertical rod 152 and framed bent cross bar 153, framed bent brace 151 skewed horizontal load is between base surface and clear water sloping core template 111, framed bent vertical rod 152 vertical supporting is between base surface and clear water sloping core template 111, and framed bent cross bar 153 is connected between framed bent brace 151 and framed bent vertical rod 152.Framed bent brace 151, framed bent vertical rod 152 and framed bent cross bar 153 all adopt steel pipe, and Nodes is connected by fastener, form the full hall frame of steel tube fastener.
The layout of sloping core framed bent 15 and the vertical guide 12 of clear water sloping core template 111 are one to one, because vertical guide 12 is main joists of clear water sloping core template 111, below is corresponding framed bent reinforcement system.Before construction, according to the arrangement of vertical guide 12, release the arrangement horizontal projection line of sloping core framed bent 15, when setting up sloping core framed bent 15, set up according to horizontal projection line, ensure have stressed framed bent vertical rod 152, framed bent cross bar 153 and framed bent brace 151 below vertical guide 12, make sloping core framed bent 15 can be effectively stressed.
Because sloping core self can produce the power of larger horizontal direction, very high requirement is proposed for reinforcement system, need the reliability and the stability that ensure skewed horizontal load root.Through checking computations, need to ensure that framed bent brace 151 is in uniaxial force state, therefore the first U-shaped jacking 171 is set on the top of framed bent brace 151, as shown in Figure 6 and Figure 7, in the bottom of framed bent brace 151, U-shaped collet 172 is set, as shown in Figure 8, make framed bent brace 151 utilize the first U-shaped jacking 171 and first of clear water sloping core template 111 back side cross bar 13 of transferring to be connected, utilize U-shaped collet 172 and second on base surface cross bar 14 of transferring to be connected.
Wherein, framed bent brace 151 is steel pipe, the top of framed bent brace 151 is provided with the second internal thread screw thread, the bottom of framed bent brace 151 is provided with the 3rd internal thread screw thread, first U-shaped jacking 171 is screwed together on the second internal thread screw thread by the second screw rod 201, U-shaped collet 172 is screwed together on the 3rd internal thread screw thread by the 3rd screw rod 202, the outreach screwing togather the U-shaped jacking 171 of adjustment first between the second screw rod 201 and the second internal thread screw thread can be utilized, utilize and screw togather the outreach regulating U-shaped collet 172 between the 3rd screw rod 202 and the 3rd internal thread screw thread, adjustment surplus is 150mm ~ 200mm, support again after can departing between guarantee sloping core framed bent 15 and vertical guide 12, the lifting and the secondary that realize clear water sloping core template 111 utilize.
First U-shaped jacking 171 comprises the second base plate welded with the second screw rod 201 and the second side plate being located at the second base plate both sides, and the second side plate is provided with for and first transfers the second U-shaped groove that cross bar 13 engages; U-shaped collet 172 comprises the 3rd base plate welded with the 3rd screw rod 202 and the 3rd side plate being located at the 3rd base plate both sides, and the 3rd side plate is provided with for and second transfers the 3rd U-shaped groove that cross bar 14 engages.
The lower bottom of the framed bent vertical rod 152 of sloping core framed bent 15 is fixed on base surface, and the top of framed bent vertical rod 152 is provided with the second U-shaped jacking 173, and framed bent vertical rod 152 utilizes this second U-shaped jacking 173 to be supported in the below of the first switching cross bar 13.
Wherein, framed bent vertical rod 152 is steel pipe, and the top of framed bent vertical rod 152 is provided with the first internal thread screw thread, and the second U-shaped jacking 173 is screwed together on the first internal thread screw thread by the first screw rod 203.Second U-shaped jacking 173 comprises the first base plate welded with the first screw rod 203 and the first side plate being located at the first base plate both sides, the first side plate offers for and first to transfer the first U-shaped groove that cross bar 13 engages.
The formwork reinforcement system of the fair-faced sloping core of wide-angle of the present invention have employed the scheme that the full hall frame of steel tube fastener combines in conjunction with double flute steel guide rail.At the back side of clear water sloping core template, vertical guide is installed, utilization arranges the first switching cross bar and is connected with the top of framed bent vertical rod and framed bent cross bar in vertical guide, connected node place adopts U-shaped jacking and first cross bar of transferring to be connected together, installation second switching cross bar on base surface is utilized to be connected with the bottom of framed bent brace, connected node place adopts U-shaped collet and second to be connected cross bar and is connected together, meet the axially loaded of knighthead and supported rod erecting on the one hand, realize departing between vertical guide and sloping core framed bent on the other hand, the lifting and the secondary that realize clear water sloping core template utilize.
The formwork reinforcement system of the fair-faced sloping core of wide-angle of the present invention not only can reach adjustment template angle stability, sloping core pressure and thrust can also be born, when utilizing the formwork reinforcement system of the fair-faced sloping core of wide-angle of the present invention to carry out the construction of clear water sloping core, mainly comprise the steps:
Set up sloping core framed bent, be included in and base surface install framed bent vertical rod, the second switching cross bar is installed by spacing earth anchor on base surface, cross bar of being transferred the bottom of framed bent brace and second by U-shaped collet is connected, between framed bent vertical rod with framed bent brace, is connected framed bent cross bar;
In the top of framed bent brace and framed bent vertical rod, vertical guide is installed, comprise vertical guide temporarily in place, in vertical guide, to be installed first by height limit block transfers that cross bar, cross bar of being transferred on the top of framed bent brace and first by the first U-shaped jacking are connected, cross bar of being transferred on the top of framed bent vertical rod and first by the second U-shaped jacking is connected;
Back cord structure is installed in vertical guide;
Clear water sloping core template is installed in back cord structure;
Colligation sloping core reinforcing bar in clear water sloping core template;
Sloping core concrete is built on sloping core reinforcing bar.
Following preferred construction process can also be adopted in Specific construction: lead wall build → line setting → framed bent sets up → Steel Structure Installation → external monolayer reinforced mesh colligation and reinforced concrete column region reinforcing bar binding → double flute steel guide rail in place → steel frame moulding board hoisted in position temporarily → steel framework wooden model accurate positioning (block-by-block Linking with foundation) → HOOK BOLTS connect steel framework to be installed with guide rail → one-sided through-wall bolt → inner side body of wall reinforcing bar binding → first dressing dust foreign material → installation inside plain form → second time clear up dust foreign material → steel framework wooden model and check, fine setting → reinforcing bar, template, acceptance of subdivisional work → concrete placings → form removal the maintenances such as framed bent.
The clear water sloping core adopting the formwork reinforcement system of the fair-faced sloping core of wide-angle of the present invention to construct has good weight bearing power, supporting & stablizing and good integrity, calculating by loading capability below to the sloping core framed bent in the present invention, to demonstrate advantage of the present invention better, specific as follows:
1, the setting up parameter and set up layout of sloping core framed bent
52 ° of degree sloping core steel pipe advances are from being 900mm; 68 ° and 72 ° of sloping core advances are 600mm; Transfer is 1200mm.
2, load calculates
A, dead load calculate
(1) template and girder deadweight standard value: G
1k=0.75KN/m
2
(2) young concrete deadweight standard value: G
2k=24 × 0.55=13.2KN/m
2
(3) concrete sloping core is perpendicular to the component of template: G
2k=24 × 0.55 × cos52
0=8.1KN/m
2
(4) reinforcing bar deadweight standard value: G
3k=1.1 × 0.55 × cos52
0=0.4KN/m
2
B, mobile load calculate
(1) the horizontal loading standard value produced when toppling over concrete is Q
3k=2KN/m
2
C, Load Combination
Calculate according to ultimate limit states, Load Combination:
Straight down, S holds=0.9max [1.2 × (13.2+0.4+0.75)+1.4 × 2,1.35 × (13.2+0.4+0.75)+1.4 × 0.7 × 2]=19.2KN/m
2=0.0192N/mm
2
Perpendicular to template direction, S hang down=cos52 ° * 0.0192N/mm
2=15.1kN/m
2=0.0151N/mm
2
Spacing between the main cant beam of twice is 1200mm, and the line load on main cant beam is calculated as follows:
Line load straight down gets P1=1200mm*0.0192N/mm2=23.0N/mm
Get perpendicular to the line load on template vertical beam direction
P2＝0.0151N/mm2*1200mm＝18.2N/mm
Adopt Two bors d's oeuveres 10# channel-section steel as template cant beam, scaffold tubes diameter 48mm, wall thickness 3.0mm.
3,52 degree of sloping core framed bents calculate
Operating mode one: worry concrete and working load are all applied on formwork and formwork supports straight down.
Load and restraint condition: maximum support reaction 23.94kN < 30kN; Maximum stress 100.6MPa < 185MPa; Maximum distortion 2.84mm < 900/200=4.5mm.
Maximum distortion 2.84mm < 900/200=4.5mm.
Operating mode two: consider that sloping core is born by scaffold perpendicular to the component in template face, the component being parallel to template is born by lower wall body.Final line load combined value is: 23xcos52 °=14.2N/mm.
Load and restraint condition: maximum stress 96.68MPa < 185MPa; Maximum counter-force 21.83kN; Maximum distortion 3.8mm < 4.5mm.
4,68 degree of sloping core framed bents calculate
Calculate according to ultimate limit states, Load Combination:
Straight down, S holds=0.9max [1.2 × (13.2+0.4+0.75)+1.4 × 2,1.35 × (13.2+0.4+0.75)+1.4 × 0.7 × 2]=19.2KN/m
2=0.0192N/mm
2
Perpendicular to template direction, S hang down=cos68 ° * 0.0192N/mm
2=8.6kN/m
2=0.0086N/mm
2
Spacing between twice cant beam is 1200mm, and the line load on cant beam is calculated as follows:
Line load straight down gets P1=1200mm*0.0192N/mm
2=23.0N/mm
Get perpendicular to the line load on template vertical beam direction
P2＝0.0086N/mm
2*1200mm＝10.4N/mm
Adopt Two bors d's oeuveres 10# channel-section steel as template cant beam, scaffold tubes diameter 48mm, wall thickness 3.0mm.
Operating mode one, considers that load is all vertically applied on template cant beam.
Load and restraint condition: maximum stress 76.7MPa; Maximum counter-force (axle power) 23.4kN; Maximum displacement 2.1mm.
Operating mode two, consider the component in the vertical and template direction of load, the component being parallel to template direction is not considered.
Load and restraint condition: maximum stress 50.0MPa; Maximum counter-force (axle power) 18.8kN; Maximum displacement 2.7mm.
Below by reference to the accompanying drawings and embodiment to invention has been detailed description, those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection scope of the present invention.
Claims (10)
1. a formwork reinforcement system for the fair-faced sloping core of wide-angle, is characterized in that, comprising:
Back cord structure, is located at the back side of clear water sloping core template;
Vertical guide, is installed on the back side of described back cord structure;
First switching cross bar, is installed in described vertical guide by height limit block;
Second switching cross bar, is installed on base surface by spacing earth anchor;
Sloping core framed bent, the framed bent cross bar comprising framed bent brace, framed bent vertical rod and be connected between framed bent brace and described framed bent vertical rod; The top of described framed bent brace is connected by the first U-shaped jacking and described first cross bar of transferring, and the bottom of described framed bent brace is passed through U-shaped collet and described second cross bar of transferring and is connected; The bottom of described framed bent vertical rod is fixed on base surface, and the top of described framed bent vertical rod is connected by the second U-shaped jacking and described first cross bar of transferring.
2. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 1, is characterized in that: described back cord structure comprises Form board frame, be located at the horizontal bar back cord in described Form board frame and be located in described Form board frame and perpendicular muscle back cord cross-coupled with described horizontal bar back cord; Described back cord structure also comprises the multiple tracks connecting cross beam that interval is laid, and the two ends of described connecting cross beam are connected with described Form board frame, and described vertical guide is installed on described connecting cross beam by HOOK BOLTS.
3. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 2, is characterized in that: described connecting cross beam is channel steel cross beam; Described vertical guide is double flute steel guide rail, comprises the first U-bar guide rail and the second U-bar guide rail; Described HOOK BOLTS comprises to be located at thread segment between described first U-bar guide rail and the second U-bar guide rail, to be screwed together in screwing up part and being located at the eave tile portion of described thread segment one end on described thread segment, described eave tile portion hooks and is located on the wing plate of described channel steel cross beam, described thread segment is provided with limiting plate, and described limiting plate is resisted against on described first U-bar guide rail and described second U-bar guide rail described screwing up when part is tightened.
4. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 1, it is characterized in that: described height limit block welding is in described vertical guide, described first switching cross bar is resisted against the below of described height limit block, and described framed bent vertical rod is supported in the below of described first switching cross bar by described second U-shaped jacking.
5. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 4, it is characterized in that: the top of described framed bent vertical rod is provided with the first internal thread screw thread, described second U-shaped jacking is screwed together on described first internal thread screw thread by the first screw rod.
6. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 5, it is characterized in that: described second U-shaped jacking comprises the first base plate welded with described first screw rod and the first side plate being located at described first base plate both sides, described first side plate offer for and described first to transfer the first U-shaped groove that cross bar engages.
7. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 1, is characterized in that: described spacing earth anchor is anchored on base surface, and described second switching cross bar is resisted against on the side regarding to described clear water sloping core template of described spacing earth anchor.
8. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 7, it is characterized in that: the top of described framed bent brace is provided with the second internal thread screw thread, the bottom of described framed bent brace is provided with the 3rd internal thread screw thread, described first U-shaped jacking is screwed together on described second internal thread screw thread by the second screw rod, and described U-shaped collet is screwed together on described 3rd internal thread screw thread by the 3rd screw rod.
9. the formwork reinforcement system of the fair-faced sloping core of wide-angle as claimed in claim 8, it is characterized in that: described first U-shaped jacking comprises the second base plate welded with described second screw rod and the second side plate being located at described second base plate both sides, described second side plate is provided with for and described first transfers the second U-shaped groove that cross bar engages; Described U-shaped collet comprises the 3rd base plate welded with described 3rd screw rod and the 3rd side plate being located at described 3rd base plate both sides, and described 3rd side plate is provided with for and described second transfers the 3rd U-shaped groove that cross bar engages.
10. a construction method for the fair-faced sloping core of wide-angle, is characterized in that, comprise step:
Set up sloping core framed bent, be included in and base surface install framed bent vertical rod, the second switching cross bar is installed by spacing earth anchor on base surface, cross bar of being transferred the bottom of framed bent brace and described second by U-shaped collet is connected, between described framed bent vertical rod with described framed bent brace, is connected framed bent cross bar;
In the top of described framed bent brace and described framed bent vertical rod, vertical guide is installed, comprise vertical guide temporarily in place, in described vertical guide, to be installed first by height limit block transfers that cross bar, cross bar of being transferred on the top of described framed bent brace and described first by the first U-shaped jacking are connected, cross bar of being transferred on the top of described framed bent vertical rod and described first by the second U-shaped jacking is connected;
Back cord structure is installed in described vertical guide;
Clear water sloping core template is installed in described back cord structure;
Colligation sloping core reinforcing bar in described clear water sloping core template;
Sloping core concrete is built on described sloping core reinforcing bar.
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