CN103255840B - Concrete wall, post tension rib assembly built-in fitting and construction method of installation thereof - Google Patents
Concrete wall, post tension rib assembly built-in fitting and construction method of installation thereof Download PDFInfo
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Abstract
A kind of concrete wall, post tension rib assembly built-in fitting and construction method of installation thereof, with iron plate bar, straight screw sleeve, anchor bar assembly as the built-in fitting of concrete wall, post tension rib, according to adopting the difference of template with colligation, being welded on cage of reinforcement or following closely inside wooden form with nail, after form removal, tension rib in pre-buried straight screw sleeve, completes the installation of tension rib with the injection of straight thread mode.By installing the steps such as tension rib after the batch regularization production of assembly built-in fitting, location, built-in fitting position, pillar, wall form, installation built-in fitting, concreting, form removal, complete the installation of concrete wall column tension rib.The present invention is simply rational in infrastructure, and manufacture easily, easy to operate, cost is low.The assembling of built-in fitting is produced and installs all very convenient, and simple to operate, convenient construction, is convenient to quality control, and concrete formation is effective, and tension rib pulling test strength can effectively ensure.And can ensure that the position of tension rib is accurate, work efficiency and quality stability can be improved, there is good Social and economic benef@.
Description
Technical field
The present invention relates to the structure structure and installment construction method of a kind of straight screw sleeve, iron plate bar assembly built-in fitting approved product, this assembly built-in fitting is used for the construction of construction work concrete tension rib, belongs to building iron technical field.
Background technology
At present, in the concrete wall, post tension rib indwelling construction of construction work, extensive employing be the construction method that reserved tension rib, pre-embedded steel slab or bar reinforcement welding and chemically-planted steel bar etc. are several frequently seen in concrete structure, but in engineering construction practice process, we find that above method all also exists the defective workmanship and hidden danger of quality being difficult to overcome, and work progress is loaded down with trivial details, subject matter is as follows:
One, reserved tension rib in concrete structure
(1) reserving hole causes damaged template, and position is wayward;
(2) pouring concrete, easily cause when shocking tension rib to loosen, glide, cause off normal;
(3) cause concrete surface to destroy when tension rib is picked out after form removal, reinforcing bar is straightening not easily;
(4) during tension rib welding, fusion length, welding quality are wayward.
Two, pre-embedded steel slab or bar reinforcement welding in template
(1) palpus electric welder subsequent operation is more, and work consuming is more, and cost is high;
(2) fusion length and weldquality wayward;
(3) anti-drawing strength is unstable, and drawing experiment qualification rate can not meet the demands.
Three, chemically-planted steel bar
(1) drilling operation during bar planting causes certain infringement to surrounding concrete; (2) if clear hole totally can not make the adhesion stress between structure glue and concrete significantly decline; (3) in bar planting operation, the not full meeting of injecting glue makes actual anchorage depth reduce; (4) the quality stability existing problems of structure glue itself; (5) durability of external condition to structure glue such as temperature, humidity, vibration is unfavorable;
(6) easily cause to shake during later stage wall construction and pull out destruction.
Wherein (5) point for the chemically-planted steel bar most important, the epoxy resin structural adhesive of general employing can produce embrittlement when structure produces vibrations, directly cause the anti-pull-out property degradation of tension rib, structural seismic capacity linearly declines.The seimic disaster census of Wenchuan County in Sichuan violent earthquake shows that wall tie bar is extremely important to providing fortification against earthquakes of construction work, the safety of the lives and properties of the numerous people of direct impact, in addition, the location that chemically-planted steel bar exists in construction is forbidden, hole depth is not enough, the anti-seismic performance of the phenomenon such as unclear of holing all remote-effects structure.
Summary of the invention
The object of the invention is for above shortcomings in existing construction work concrete wall, post tension rib construction method, a kind of concrete wall, post tension rib assembly built-in fitting and construction method of installation thereof are provided, this assembly built-in fitting making, install all very convenient, and improve the construction quality of tension rib, reduce structure man-made further destroy, save artificial, improve the pull strength of tension rib, ensure structural seismic requirement, remarkable in economical benefits.
The object of the invention is to be achieved through the following technical solutions, a kind of concrete wall, post tension rib assembly built-in fitting, be provided with an iron plate bar, two straight screw sleeves and two anchor ribs; Iron plate bar middle part is arranged with two preformed holes, and preformed hole aperture is identical with straight screw sleeve external diameter; Two straight screw sleeves are vertically set on the iron plate bar side of corresponding preformed hole respectively; Described anchor rib, straight screw sleeve are positioned at iron plate bar homonymy, and anchor rib one end and straight screw sleeve are with straight screw connection, and the length that anchor rib screws in straight screw sleeve is greater than 6mm, and the anchor rib other end is provided with crotch, and the crotch of two anchor ribs is oppositely arranged.
Described iron plate bar is of a size of 200mm × 50mm × 3mm.
Described anchor rib is diameter phi 6mm, length is the plain bar of 120mm, and the length of the crotch at anchor rib two ends is 60mm.
Described straight screw sleeve and iron plate bar spot-welded, the weld bead height between iron plate bar and straight screw sleeve is 5mm, and the length of straight screw sleeve is 30mm.
Described iron plate bar two ends are arranged with circular hole, and circular hole is arranged on outside preformed hole, and circular hole aperture is 3mm.
The construction method of installation of above-mentioned concrete wall, post tension rib assembly built-in fitting, is characterized in that, comprise the following steps:
(1) after the colligation of structure vertical reinforcement, carry out measurement and positioning unwrapping wire, vertical reinforcement is released the vertical and horizontal level of beam-wall binding muscle and marks;
(2) Zhi Shuxiang wooden form, described assembly built-in fitting is settled according to the mark position of tension rib on cage of reinforcement, be close to inside described iron plate bar and wooden form, two described straight screw sleeves are vertically set on iron plate bar side respectively, be close to after straight screw sleeve bore one end is stoppered plastic protective plug with inside wooden form, the straight screw sleeve bore other end screws in described anchor rib, anchor rib screw-in length is greater than 6mm, anchor rib, straight screw sleeve are positioned at iron plate bar homonymy, and the crotch of two anchor ribs is oppositely arranged; Through the circular hole at iron plate bar two ends, assembly built-in fitting is marked closely inside wooden form with iron nail;
(3) seal mould after-pouring structural concrete, treat that structure reaches design strength form removal, concrete drawknot inside anchor rib and wooden form, finds out the position of iron plate bar position and pre-buried straight screw sleeve;
(4) extract the plastic protective plug in straight screw sleeve and sleeve hole is cleaned out;
(5) screwed in the mode of straight screw connection by tension rib in two the straight screw sleeve holes be embedded in advance in concrete wall, post, tension rib screw-in length is greater than 6mm.
The present invention can also be achieved through the following technical solutions, and a kind of concrete wall, post tension rib assembly built-in fitting, be provided with an iron plate bar, two straight screw sleeves and two anchor ribs; Iron plate bar middle part is arranged with two preformed holes, and preformed hole aperture is identical with straight screw sleeve external diameter; Two straight screw sleeves are vertically set on the iron plate bar side of corresponding preformed hole respectively, and the length of described straight screw sleeve and the thickness sum of iron plate bar are thickness of protection tier; Described anchor rib passes the preformed hole on described iron plate bar and is threaded with straight screw sleeve, and the anchor rib other end is provided with crotch, and the crotch of two anchor ribs is oppositely arranged.
Described iron plate bar and straight screw sleeve spot-welded, the weld bead height between iron plate bar and straight screw sleeve is 5mm.
Described iron plate bar is of a size of 200mm × 50mm × 3mm.
Described anchor rib is diameter phi 6mm, length is the plain bar of 120mm, and the length of the crotch at anchor rib two ends is 60mm.
The construction method of installation of above-mentioned concrete wall, post tension rib assembly built-in fitting, is characterized in that, comprise the following steps:
(1) after the colligation of structure vertical reinforcement, carry out measurement and positioning unwrapping wire, vertical reinforcement is released the vertical and horizontal level of beam-wall binding muscle and marks;
(2) when propping up vertical steel template or wooden form, described assembly built-in fitting is settled according to the mark position of tension rib on cage of reinforcement, by parallel with cage of reinforcement for described iron plate bar placement, two described straight screw sleeves are vertically set on iron plate bar side respectively, be close to after being stoppered plastic protective plug in the bore of straight screw sleeve one end with inside template, the straight screw sleeve other end screws in described anchor rib, anchor rib screw-in length is greater than 6mm, anchor rib passes the preformed hole on iron plate bar and is threaded with straight screw sleeve, two anchor rib crotches are oppositely arranged, iron plate strip adoption spot-welded or be arranged on cage of reinforcement by the method for tied silk colligation,
(3) mould after-pouring structural concrete is sealed, the thickness of concrete cover and the thickness of reinforcement cover are length and the iron plate bar thickness sum of straight screw sleeve, treat that structure reaches design strength form removal, concrete drawknot inside anchor rib and template, finds out the position of iron plate bar position and pre-buried straight screw sleeve;
(4) extract the plastic protective plug in straight screw sleeve and sleeve hole is cleaned out;
(5) screwed in the mode of straight screw connection by tension rib in two the straight screw sleeve holes be embedded in advance in concrete wall, post, tension rib screw-in length is greater than 6mm.
Compared with prior art, the present invention has following technique effect:
The first, iron slat dimension is mm × 3,200mm × 50 mm, to be installed be connected with wooden form by iron nail.Iron plate bar middle part is provided with supporting two circular cavities and the spot welding of straight screw sleeve one end, and iron plate bar two-end part is provided with aperture iron nail and clenches inside wooden form.Anchor rib is the plain bar of end with mantle fiber, the conventional φ 6 identical with straight screw sleeve diameter of bore.The anchor bar length be embedded in advance inside template is 120mm simultaneously, and end strips crotch, is connected in straight thread mode with the straight screw sleeve other end.The straight screw sleeve point matched with the tension rib of end mantle fiber is welded on two preformed holes of the middle part of iron plate bar, weld bead height 5mm, aperture is identical with straight screw sleeve external diameter, two pitchs of holes are tension rib level interval, iron plate bar one side is welded with straight screw sleeve, and this assembly built-in fitting is fixed in concrete wall, post by the position according to tension rib.If wooden form, the aperture nail opened by iron plate bar two ends marks closely the inner side at wooden form.If steel form, iron plate bar just adopts spot welding or with the precalculated position of tied silk colligation at cage of reinforcement, length and the iron plate bar thickness sum of straight screw sleeve are thickness of protection tier.Is close to after one end, straight screw sleeve hole plastic protective plug is stoppered and inside template, the other end with straight screw connection mode injection end with concrete drawknot inside the anchor rib of crotch and template.After form removal, end is adjacent to straight screw sleeve hole inside template with the tension rib of mantle fiber with the mode injection of straight thread.This straight screw sleeve, iron plate bar, anchor bar assembly built-in fitting contact directly the regularization batch production of five metals manufacturer.Finished product is transported to scene, is directly arranged on inside wooden form by steel nail, simple to operation.
The second, produced by the sizing of built-in fitting assembly, location, tension rib position, installation of embedded parts fixes, a wall form, concreting, form removal, the step such as injection tension rib in straight screw sleeve, complete the installation of concrete wall, post tension rib.The making of built-in fitting, installation, all very convenient, do not affect concrete formation effect, tension rib position is accurate, easy to control, effectively can overcome the deficiency existed in existing tension rib construction method, improves engineering construction quality and economic benefit.
3rd, adopt this tension rib connected mode, the Eligibility requirements of tension rib anti-drawing strength in " masonry structure engineering construction quality standards of acceptance " GB50203-2011 can be reached.Tension rib Strength co-mputation connects tension rib in pre-buried straight thread component mode, its calculation of Tensile Strength is as follows: according to " regular screw threads diameter and pitch series " GB/T 193-2003, reinforcing bar nominal diameter d=6.5mm, look into this specification " diameter and pitch combination series " (table one), get pitch t=0.75mm.According to " Code for design of steel structures " GB-50017-2003, calculate bolt tensile strength: the effective diameter de=d-13/24 of bolt
t=5.8mm, bolt effective area is Ae=
/ 4 × (d-13/24
t) 2=26.31mm
2, HPB235 Steel Bar Tensile Strength standard value fbt=235N/ mm
2.The tensile bearing capacity calculated value of single bolt is Ntb1=Ae × fbt × 0.9=
de
2/ 4 × fbt × 0.9=5585.9N.6.5 Steel Bar Tensile Strength design loads are: Ntb=
d
2/ 4 × fbt × 0.9=6964.9N.Ntb1/Ntb=80.2%, according to test specification, it controls tensile stress and presses 0.8 positive and negative 5% of tension rib strength standard value for qualified, therefore adopt this tension rib connected mode, the Eligibility requirements of tension rib anti-drawing strength in " masonry structure engineering construction quality standards of acceptance " GB50203-2011 can be reached.
Accompanying drawing explanation
Fig. 1 is the structural representation of concrete wall in embodiment 1, post tension rib assembly built-in fitting;
Fig. 2 is the structural representation of iron plate bar of Fig. 1 concrete wall, post tension rib assembly built-in fitting;
Fig. 3 is the structural representation of concrete wall in embodiment 2, post tension rib assembly built-in fitting;
Fig. 4 is the structural representation of iron plate bar of Fig. 3 concrete wall, post tension rib assembly built-in fitting;
The syndeton schematic diagram of Fig. 5 to be Fig. 3 be in embodiment 1 concrete wall, post tension rib assembly built-in fitting and cage of reinforcement;
Wherein: 1 template, 2 anchor ribs, 3 straight screw sleeves, 4 iron plate bars, 5 preformed holes, 6 circular holes, 7 iron nails, 8 concrete wall, post reinforcing bar, 9 weld seams.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, 2, a kind of concrete wall, post tension rib assembly built-in fitting, be provided with an iron plate bar 4, two straight screw sleeves 3 and two anchor ribs 2.
Iron plate bar 4 is for fixing straight screw sleeve 3.Iron plate bar 4 middle part is arranged with two preformed holes 5, and preformed hole 5 aperture is identical with straight screw sleeve 3 external diameter, and between two preformed holes 5, spacing is the level interval of two tension ribs.Iron plate bar 4 two ends are arranged with circular hole 6, and circular hole 6 is arranged on outside preformed hole 5.Circular hole 6 aperture is 3mm.Iron plate bar 4 is of a size of 200mm × 50mm × 3mm.
Straight screw sleeve 3 is connected with post, wall tension rib.Two straight screw sleeves 3 are vertically set on iron plate bar 4 side of corresponding preformed hole 5 respectively, be provided with plastics protection fill in iron plate bar 4 in the straight screw sleeve 3 one end cylinder be connected.Straight screw sleeve 3 and iron plate bar 4 spot-welded, the weld seam 9 between iron plate bar 4 and straight screw sleeve 3 is highly 5mm, and the height of straight screw sleeve 3 is 30mm.
Anchor rib 2 uplift effects, extract from concrete column, wall for resisting assembly built-in fitting.Anchor rib 2, straight screw sleeve 3 are positioned at iron plate bar homonymy, anchor rib 2 one end and straight screw sleeve straight screw connection, and drawknot anchor rib 2 other end is provided with crotch, and the crotch of two anchor ribs 2 is oppositely arranged.Anchor rib 2 is the plain bar of diameter phi 6mm, and the length of anchor rib is 120mm, and the length of crotch is 60mm.
Concrete wall, the post tension rib construction method of installation of assembly built-in fitting, is characterized in that, comprise the following steps:
(1) after the colligation of structure vertical reinforcement, carry out measurement and positioning unwrapping wire, vertical reinforcement is released the vertical and horizontal level of beam-wall binding muscle and marks;
(2) Zhi Shuxiang wooden form, described assembly built-in fitting is settled according to the mark position of tension rib on cage of reinforcement, be close to inside described iron plate bar 4 and wooden form, two described straight screw sleeves 3 are vertically set on iron plate bar 4 side respectively, be close to after straight screw sleeve 3 bore one end is stoppered plastic protective plug with inside wooden form, the straight screw sleeve 3 bore other end screws in described anchor rib 2, anchor rib 2 screw-in length is greater than 6mm, anchor rib 2, straight screw sleeve 2 are positioned at iron plate bar 4 homonymy, and the crotch of two anchor ribs 2 is oppositely arranged; Through the circular hole 6 at iron plate bar 4 two ends, assembly built-in fitting is marked closely inside wooden form with iron nail 7;
(3) seal mould after-pouring structural concrete, treat that structure reaches design strength form removal, concrete drawknot inside anchor rib 2 and wooden form, finds out the position of iron plate bar 4 position and pre-buried straight screw sleeve 3;
(4) extract the plastic protective plug in straight screw sleeve 3 and sleeve hole is cleaned out;
(5) screwed in the mode of straight screw connection by tension rib in two straight screw sleeve 3 holes be embedded in advance in concrete wall, post, tension rib screw-in length is greater than 6mm.
Embodiment 2
As shown in Fig. 3,4,5, a kind of concrete wall, post tension rib assembly built-in fitting, be provided with an iron plate bar 4, two straight screw sleeves 3 and two anchor ribs 2.
Iron plate bar 4 is for fixing straight screw sleeve 3.Iron plate bar 4 middle part is arranged with two preformed holes 5, and preformed hole 5 aperture is identical with straight screw sleeve 3 diameter of bore.Iron plate bar 4 is of a size of 200mm × 50mm × 3mm.
Straight screw sleeve 3 is connected with post, wall tension rib.Two straight screw sleeves 3 are vertically set on iron plate bar 4 side of corresponding preformed hole 5 respectively.Iron plate bar 4 and straight screw sleeve 3 spot-welded, the weld bead height between iron plate bar 4 and straight screw sleeve 3 is 5mm.Plastics protection plug is provided with in the bore of straight screw sleeve 3 end.The height of straight screw sleeve 3 and the thickness sum of iron plate bar 4 are thickness of protection tier.
Anchor rib 2 uplift effects, extract from concrete column, wall for resisting assembly built-in fitting.Anchor rib 2 passes the preformed hole 5 on iron plate bar 4 and is threaded with straight screw sleeve 3, and anchor rib 2 other end is provided with crotch, and the crotch of two anchor ribs 2 is oppositely arranged.Anchor rib 2 is the plain bar of diameter phi 6mm, and the length of anchor rib 2 is 120mm, and the length of the crotch of anchor rib 2 is 60mm.
Concrete wall, the post tension rib construction method of installation of assembly built-in fitting, comprise the following steps:
(1) after the colligation of structure vertical reinforcement, carry out measurement and positioning unwrapping wire, vertical reinforcement is released the vertical and horizontal level of beam-wall binding muscle and marks;
(2) when propping up vertical steel template or wooden form, described assembly built-in fitting is settled according to the mark position of tension rib on cage of reinforcement, by parallel with cage of reinforcement for described iron plate bar 4 placement, two described straight screw sleeves 3 are vertically set on iron plate bar 4 side respectively, be close to after being stoppered plastic protective plug in the bore of straight screw sleeve 3 one end with inside template, straight screw sleeve 3 other end screws in described anchor rib 2, anchor rib 2 screw-in length is greater than 6mm, anchor rib 2 passes the preformed hole 5 on iron plate bar 4 and is threaded with straight screw sleeve 3, two anchor rib 2 crotches are oppositely arranged, iron plate bar 4 adopts spot-welded or is arranged on cage of reinforcement by the method for tied silk colligation,
(3) mould after-pouring structural concrete is sealed, thickness of concrete cover and thickness of protection tier are length and the iron plate bar 4 thickness sum of straight screw sleeve 3, treat that structure reaches design strength form removal, concrete drawknot inside anchor rib 2 and template, finds out the position of iron plate bar 4 position and pre-buried straight screw sleeve 3;
(4) extract the plastic protective plug in straight screw sleeve 3 and sleeve hole is cleaned out;
(5) screwed in the mode of straight screw connection by tension rib in two straight screw sleeve 3 holes be embedded in advance in concrete wall, post, tension rib screw-in length is greater than 6mm.
Embodiment 3
Produced by the sizing of built-in fitting assembly, location, tension rib position, installation of embedded parts fixes, a wall form, concreting, form removal, the step such as injection tension rib in straight screw sleeve, complete the installation of concrete wall, post tension rib.
1, the composition of concrete wall, post tension rib assembly built-in fitting mainly iron plate bar welds two straight screw sleeves with full weld technique, weld seam controls as 5mm, sleeve hole carries out protecting plug simultaneously, distance between two straight screw sleeves is the level interval between two tension ribs, level interval is that every 100 mm are no less than 1, and the vertical spacing of iron plate bar built-in fitting is arranged with reference to the vertical spacing of generally tension rib: configure 2 φ 6 steel ties and load bearing wall or post drawknot along wall is high every 500mm.The barrel dliameter of straight screw sleeve closes with the diameter compatible with the tension rib of mantle fiber, and guarantee that the tension rib with mantle fiber can with in the bolt sleeve of the mode injection built-in fitting of straight screw connection, the specification of tension rib is by designing requirement, the length of straight screw sleeve is determined by the protective layer thickness of concrete component, it is highly specially: the thickness+thickness of concrete cover of iron plate bar, according to the difference of structural element protective layer thickness, compliant sleeve can be divided into shear wall tension rib straight screw sleeve, concrete column tension rib straight screw sleeve, because sleeve height is arranged respectively according to different protective layer thickness, can ensure that when concrete pouring construction thickness of concrete cover is reliably qualified, the use of topping plastic washer or concrete protective layer pad can be reduced in a large number simultaneously, saving of labor, material-saving, and the position of straight screw sleeve after form removable, can be found very easily, the specification of iron plate bar is mm × 3,200mm × 50 mm, iron plate bar, the specification of straight screw sleeve and quantity contact the unified sizing processing of producer in advance after adding up according to engineering practice, batch production.
Table 1 concrete cover minimum thickness (unit mm)
| Environment category | Plate, wall, shell | Beam, post, bar |
| One | 15 | 20 |
| Two a | 20 | 25 |
| Two b | 25 | 35 |
| Three a | 30 | 40 |
| Three b | 40 | 50 |
Note: when strength grade of concrete is not more than C25, in table, topping numerical value increases 5mm.
2, on the cage of reinforcement that colligation is good to the position line setting of iron plate bar built-in fitting of band straight screw sleeve, welding personnel carries out the welding of iron plate bar by the vertical axis direction along shear wall, post, and welding adopts spot welding, and site error controls within 2mm.Iron panel surface not parallel with cage of reinforcement or together with can not coincideing reliably time, the suitable parallels plate in larger side, gap between iron plate bar and cage of reinforcement; If wooden model, by two stomidiums of iron plate bar, built-in fitting is fixed on inside wooden model.
3, before straight screw sleeve welds with iron plate bar, iron plate bar is accurately located, determines sleeve portion, and carry out mark, this work can put in place when five metals manufacturer produces iron plate bar in processing, and cleaned out in sleeve cavity before welded sleeve, nozzle protects plug by sheath;
4, welding position is determined according to the straight screw sleeve telltale mark on iron plate bar, blanking, welding is carried out according to the specification of engineering quantity size, sleeve, the locations of structures different arrangement special messenger buried underground and skilled welder, guarantee the position of iron plate bar on cage of reinforcement and the position of straight screw sleeve on iron plate bar accurate, reduce position deviation each other, ensure that sleeve is vertical with iron plate bar;
5, first straight screw sleeve is welded with iron plate bar sequentially, iron plate bar again with member reinforcing steel bar frame welding or the setting position that must ensure to meet tension rib with galvanized wire colligation (depending on field working conditions), iron plate bar position on cage of reinforcement on cage of reinforcement, strict surveying setting-out location must to be carried out in the position of cage of reinforcement to iron plate bar, ensure that in vertical and horizontal direction, meet tension rib arranges requirement.
6, the length of tension rib and the processing of mantle fiber must be processed in unified regularization, and the batch machining that needs according to engineering quantity is produced.
7, concreting shaping after reach form removal after design strength; because iron plate bar thickness+sleeve height is exactly protective layer thickness; so be easy to the position finding sleeve; extract the plastic protective plug of sleeve hole; clean out casing hole; just can, by the tension rib with mantle fiber with in the mode injection sleeve of straight thread, operate simple and easy, easy construction.
Claims (2)
1. concrete wall, the post tension rib construction method of installation of assembly built-in fitting, described concrete wall, post tension rib assembly built-in fitting comprise two anchor ribs, it is characterized in that, described concrete wall, post tension rib assembly built-in fitting also comprise an iron plate bar, two straight screw sleeves; Iron plate bar middle part is arranged with two preformed holes, and preformed hole aperture is identical with straight screw sleeve external diameter; Straight screw sleeve and iron plate bar spot-welded, weld bead height 5mm; The construction method of installation of described assembly built-in fitting, comprises the following steps:
(1) after the colligation of structure vertical reinforcement, carry out measurement and positioning unwrapping wire, vertical reinforcement is released the vertical and horizontal level of beam-wall binding muscle and marks;
(2) Zhi Shuxiang wooden form, described assembly built-in fitting is settled according to the mark position of tension rib on cage of reinforcement, be close to inside described iron plate bar and wooden form, two described straight screw sleeves are vertically set on the iron plate bar side of corresponding preformed hole respectively, be close to after straight screw sleeve bore one end is stoppered plastic protective plug with inside wooden form, the straight screw sleeve bore other end screws in described anchor rib in the mode of straight screw connection, anchor rib screw-in length is greater than 6mm, anchor rib one end and straight screw sleeve are with straight screw connection, the anchor rib other end is provided with crotch, anchor rib, straight screw sleeve is positioned at iron plate bar homonymy, the crotch of two anchor rib ends is oppositely arranged, through the circular hole at iron plate bar two ends, assembly built-in fitting is marked closely inside wooden form with iron nail,
(3) seal mould after-pouring structural concrete, treat that structure reaches design strength form removal, concrete drawknot inside anchor rib and wooden form, finds out the position of iron plate bar position and pre-buried straight screw sleeve;
(4) extract the plastic protective plug in straight screw sleeve and sleeve hole is cleaned out;
(5) screwed in the mode of straight screw connection by tension rib in two the straight screw sleeve holes be embedded in advance in concrete wall, post, tension rib screw-in length is greater than 6mm.
2. concrete wall, the post tension rib construction method of installation of assembly built-in fitting, described concrete wall, post tension rib assembly built-in fitting comprise two anchor ribs, it is characterized in that, described concrete wall, post tension rib assembly built-in fitting also comprise an iron plate bar, two straight screw sleeves and two anchor ribs; Iron plate bar middle part is arranged with two preformed holes, and preformed hole aperture is identical with straight screw sleeve external diameter; Straight screw sleeve and iron plate bar spot-welded, weld bead height 5mm; The construction method of installation of described assembly built-in fitting, comprises the following steps:
(1) after the colligation of structure vertical reinforcement, carry out measurement and positioning unwrapping wire, vertical reinforcement is released the vertical and horizontal level of beam-wall binding muscle and marks;
(2) when propping up vertical steel template or wooden form, described assembly built-in fitting is settled according to the mark position of tension rib on cage of reinforcement, by parallel with cage of reinforcement for described iron plate bar placement, two described straight screw sleeves are vertically set on the iron plate bar side of corresponding preformed hole respectively, the length of described straight screw sleeve and the thickness sum of iron plate bar are thickness of protection tier, be close to after being stoppered plastic protective plug in the bore of straight screw sleeve one end with inside template, the straight screw sleeve other end screws in described anchor rib, anchor rib screw-in length is greater than 6mm, anchor rib passes the preformed hole on iron plate bar and is threaded with straight screw sleeve, the anchor rib other end is provided with crotch, two anchor rib crotches are oppositely arranged, iron plate strip adoption spot-welded or be arranged on cage of reinforcement by the method for tied silk colligation,
(3) mould after-pouring structural concrete is sealed, the thickness of concrete cover and the thickness of reinforcement cover are length and the iron plate bar thickness sum of straight screw sleeve, treat that structure reaches design strength form removal, concrete drawknot inside anchor rib and template, finds out the position of iron plate bar position and pre-buried straight screw sleeve;
(4) extract the plastic protective plug in straight screw sleeve and sleeve hole is cleaned out;
(5) screwed in the mode of straight screw connection by tension rib in two the straight screw sleeve holes be embedded in advance in concrete wall, post, tension rib screw-in length is greater than 6mm.
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