Mechanical Rebar Connection Systems rau Reinforced Concrete Siv
Mechanical rebar kev twb kev txuas systems hloov cov tsoos lap splices nyob rau hauv cov pob zeb siv dag zog los ntawm kev ncaj qha mus rau tensile, compressive, thiab cyclic dynamic loads ntawm reinforcing tuav. Kev lig kev cai lap splicing cia siab rau tag nrho cov pob zeb kev nyuaj siab, uas ua rau kom rebar congestion, txwv cov pob zeb ntws, thiab yuav tsum tau ntev kev loj hlob ntev nyob rau hauv siab -qib qhob los yog loj- kab kab.
Mechanical splices tsim ib txoj kev thauj khoom tas mus li uas tshem tawm cov hlau tsis sib haum hauv cov txheej txheem hnyav hnyav, phab ntsa - mus rau -kem junctions, thiab precast qhob kev sib txuas. Los ntawm kev tswj xyuas kev ncaj ncees nyob rau hauv qhov zoo li qub, muaj zog, thiab seismic zog, cov tshuab no ua tau raws li cov qauv tsim cov qauv tsim kom muaj zog, lub zog tensile kawg, thiab kev coj tus cwj pwm tsis zoo hla cam khwb cia- hauv- qhov chaw thiab daim ntawv thov precast.
Primary Structural Standards Compliance:
• TEB CHAWS USA / International: ACI 318 (Hom 1 thiab Hom 2 Mechanical Splices), ASTM A1034 (Txoj Kev Xeem Txheej Txheem rau Kev Ntsuas Mechanical Splices rau Steel Reinforced Bars)
• Cov teb chaws Europe: BS EN 1992-1-1 (Eurocode 2), ISO 15835-1 & 2 (Steels for the reinforcement of concrete - Mechanical splices for bars)
• Lub teb chaws Yelemees: DIBt (Deutsches Institut für Bautechnik) hom kev pom zoo
• Caltrans: Kev Pabcuam, Qhov kawg, thiab Seismic kev ua tau zoo rau kev tsim choj
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![Crimping Rebar Couplers]()
Crimping Rebar CouplersCrimping rebar couplers koom nrog reinforcing steel tuav los ntawm txias -swaged mechanical deformation yam tsis tas yuav threading, nplaim taws kub, los yog qhov chaw vuam. Lub tes tsho seamless carbon steel swb hla ob qhov kawg ntawm...saib ntxiv -
![Swaged Rebar Couplers]()
Swaged Rebar CouplersSwaged Rebar Couplers muab tag nrho - lub zog txhua yam splice los ntawm txias -forging lub tes tsho seamless steel ncaj qha mus rau ribbed reinforcement steel. Siv lub tshuab hluav taws xob hydraulic swaging xovxwm, lub tes tsho steel...saib ntxiv -
![Compression Rebar Couplers]()
Compression Rebar CouplersCompression Rebar Couplers muab qhov kawg - mus rau - xaus kev thauj mus los rau kev txhawb nqa tuav uas feem ntau yog compressive quab yuam. Los ntawm kev tuav cov square ncaj ncaj- txiav bar kawg bearing nyob rau hauv lub siab - lub...saib ntxiv -
![Bolted Rebar Couplers]()
Bolted Rebar CouplersBolted rebar couplers muab tag nrho - zog txhua yam splice rau reinforcing tuav yam tsis muaj threading, swaging, los yog welding lub rebar xaus. Kev sib txuas yog nyob ntawm siab - lub zog shear bolts uas nkag mus rau hauv qhov chaw...saib ntxiv -
![Weldable Rebar Couplers]()
Weldable Rebar CouplersWeldable Rebar Couplers txuas cov hlua txuas ncaj qha rau cov qauv hlau, nrog rau cov kab hlau, cov kaus mom, caissons, thiab cov phaj embedment. Tsim los nrog rau sab nraud bevel-txiav lub xub pwg rau tag nrho cov txheej txheem kev sib...saib ntxiv -
![Grout Tes Tsho Rebar Couplers]()
Grout Tes Tsho Rebar CouplersGrout tes tsho rebar couplers hloov tensile thiab compressive rog ntawm reinforcing tuav nyob rau hauv precast qhob structural sib txuas. Tsim feem ntau rau kab ntsug- mus rau - lub hauv paus, phab ntsa- mus rau - lub hauv paus, thiab...saib ntxiv
hom CNC machining
Grout Tes Tsho Rebar Couplers
Cast iron or structural steel hollow sleeves with internal keyway profiles designed for precast panel-to-panel and column-to-foundation connections. One end holds a factory-threaded or crimped rebar, while the opposite end receives a continuation bar filled with non-shrink, high-strength structural grout (compressive strength >= 85 MPa).
Mechanism:Mechanical interlock ntawm lub tes tsho sab hauv grooves, mortar matrix, thiab rebar tav.
Qhov zoo tshaj plaws siv rau:Precast shear phab ntsa, precast kem, modular choj piers, thiab beam txuas.
Weldable Rebar Couplers
Forged weldable - qib structural steel tes tsho featuring lub Hoobkas- tshuab nrog xov nyob rau hauv ib sab thiab ib tug txheej bevel los yog tiaj tiaj nto ntawm lwm yam rau structural steel kev sib txuas.
Mechanism:Internal xov koom nrog npaj rebar kawg; lub ntsej muag rov qab txuas ncaj qha rau cov qauv hlau daim hlau, kuv- kab teeb, lossis cov kaus mom ntawm tag nrho - qhov nkag groove welds.
Qhov zoo tshaj plaws siv rau:Composite steel-cov qauv vaj tse, diaphragm phab ntsa- mus rau -slab thauj tog rau nkoj, steel pawg kaus mom, thiab embedment daim hlau.
Bolted Rebar Couplers
Hnyav-phab ntsa seamless steel tubs nruab nrog ib tug series ntawm shear-tawm torque bolts positioned raws tus axis thiab sab hauv alignment grooves.
Mechanism:Tightening lub shear-tawm bolts tsav cov ntsiab lus hardened steel rau hauv rebar nto kom txog rau thaum lub taub hau ntsia liaj qhov rooj shear tawm ntawm lub predetermined torque, clamping lub bar nyob rau hauv lub tes tsho tsis muaj bar -kawg threading los yog swaging.
Qhov zoo tshaj plaws siv rau:Qhov chaw retrofits, kho cov puas embedded rebar, kev twb kev txuas ntawm tsis yog -tus qauv los yog unthreadable rebar, thiab pawg sab saum toj txiav - tawm extensions.
Compression Rebar Couplers
Qhib -ib sab lossis tubular steel dab tshos cov rooj sib txoos tuav hauv kev sib dhos los ntawm cov hlua khi, qhov chaw ntsia hlau, lossis cov hlua tsav sab nraud.
Mechanism:Aligning lub square- txiav xaus ntawm ob lub ntsej muag rebars- mus rau - ntsej muag hauv dab tshos hloov axial compressive loads ncaj qha mus txog qhov kawg - bearing contact hla lub ntsej muag steel.
Qhov zoo tshaj plaws siv rau:Tshwj xeeb tshaj yog compression-loaded tswv cuab xws li hnyav lub tsev kem, compression struts, thiab foundation pawg.
Swaged Rebar Couplers
Lub tes tsho seamless carbon steel nyob rau hauv overlapping lossis abutting rebar xaus thiab txias - tsim siv cov khoom siv hydraulic xovxwm.
Mechanism:Cov khoom siv lub tes tsho yog hydraulically compressed, yuam lub dab tshos steel kom deform rau hauv deformations thiab tav ntawm rebar rau tag nrho cov neeg kho tshuab tuav.
Qhov zoo tshaj plaws siv rau:Loj - txoj kab uas hla rebar splices (#11 mus rau #18 / 32 mm txog 57 mm) nyob rau hauv nuclear ntim cov qauv, dam phab ntsa, thiab cov hauv paus hnyav uas rebar tsis tuaj yeem tig.
Crimping Rebar Couplers
Mechanically crimped lub tes tsho xauv rau hauv txoj hauj lwm siv tshwj xeeb lub rooj ntev zaum hydraulic cov cuab yeej los yog teb crimping cov cuab yeej uas nias indentations ntawm teem caij raws li lub cev coupler.
Mechanism:Sectional mechanical deformation locks lub tes tsho phab ntsa nyob ib ncig ntawm qhov profile ntawm lub rebar tav.
Qhov zoo tshaj plaws siv rau:Factory prefabrication ntawm rebar tawb, mesh reinforcement assemblies, thiab standardized precast rebar tawb.
Cov yam ntxwv tseem ceeb ntawm cov khoom
Tag Nrho -Lub zog Load Transfer (Type 2 / Yield & Tensile Compliant): Engineered kom tshaj 125% ntawm lub zog yield (fy) thiab 100% ntawm qhov kawg ntawm lub zog tensile (fu) ntawm niam txiv rebar qib (piv txwv li, Qib 60 / Qib 80 / B500B), kev rov ua haujlwm rau sab nraum qhov tsis ua hauj lwm rau B5 splic cheeb tsam.
Tswj Total Slip
Precision internal machining thiab nruj tolerances txwv cov neeg kho tshuab plam hauv qhov nro- compression loading tsawg dua 0.10 mm (0.004 in.) tom qab ua ntej -loading cycles ib ACI 318 thiab ISO 15835 tus qauv.
Ductility thiab Seismic Resistance
Tuav lub peev xwm thauj khoom dhau los ntawm thaj chaw xa khoom yas ntawm lub rebar, dhau siab - kev ntxhov siab qis - lub voj voog qaug zog thiab rov qab tsis zoo - kev ntsuas kev thauj khoom cyclic (hom 2 seismic qualification).
Khoom siv Traceability
Tsim los ntawm seamless alloy steel tubing (xws li, 45 # carbon steel, 40Cr, 20CrMo) los yog siab -qib hlau hlau (QT500-7) nrog tag nrho cov cua sov-ntaus traceability rov qab rau raw zeb xeem ntawv qhia (MTR).
Los tiv thaiv -Corrosion Surface Finish Options
Muaj nyob rau hauv liab qab steel, dub oxide, kub-dip galvanizing (HDG), zinc electroplating, los yog epoxy txheej kom phim cov chav kawm raug (marine, deicing ntsev, hauv av).
Cov ntsiab lus tseem ceeb
Rebar Size Compatibility:
Imperial Loj: #4, #5, #6, #7, #8, #9, #10, #11, #14, #18.
Metric Loj:12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm, 32 mm, 36 mm, 40 mm, 50 mm.
Mechanical Properties & Structural Performance Matrix:
|
Hom Coupler |
Qib Khoom Siv Tseem Ceeb |
Yuav tsum tau npaj Bar End |
Kev ua haujlwm zoo ib yam (ISO 15835 / ACI 318) |
Tensile / Yield Peev Xwm |
|
Lub tes tsho Grout |
Cov Hlau Hlau (QT500-7) / Seamless Steel |
Tsis muaj lossis Hoobkas Parallel Xov |
<= 0.10 mm (after grouting & cure) |
>= 125% fy / Tensile Failure hauv Parent Bar |
|
Weldable Coupler |
Tsawg Carbon Steel Qauv (piv txwv li, C20 / 20Cr) |
Parallel Threading lossis Cold Forging |
<= 0.08 mm |
Tshaj Parent Bar Ultimate Tensile |
|
Bolted Coupler |
Alloy Cov Qauv Hlau (40Cr / 45 #) |
Plain Cut Ends (Square Cut) |
<= 0.10 mm |
>= 125% fy (ACI Hom 1 / Hom 2 variants) |
|
Compression Coupler |
Cov pa roj carbon steel (Q235 / Q355) |
Pom Hlais 90℃Square Ends |
N/A (Compression Bearing) |
Tshaj Nominal Compression Capacity |
|
Swaged Coupler |
Seamless Annealed Carbon Steel |
Tsis muaj (Direct Field Pressing) |
<= 0.05 mm |
Tshaj Parent Bar Ultimate Tensile |
|
Crimping Coupler |
Mos Mild Carbon Steel |
Tsis muaj (Tsav / Khw Crimping) |
<= 0.10 mm |
Ua tau raws li tus qauv yield |
Daim ntawv thov
Precast Concrete Vaj Huam Sib Luag thiab phab ntsa txuas:Grout lub tes tsho couplers tsim kom muaj kev sib txuas ntxiv thoob plaws ntsug precast shear phab ntsa pob qij txha, pem teb - mus rau - cov phab ntsa ntawm phab ntsa, thiab kem hauv paus yam tsis tas yuav cast ntev - hauv - qhov chaw lap splice cheeb tsam.
Infrastructure Bridges thiab Viaducts:Siab -Ntau zog swaged, bolted, los yog threaded couplers koom pier cap rebar rau kem tawb thiab choj lawj reinforcement raug rau dynamic tsheb loads thiab seismic shear rog.
Siab -Rise Core Phab Ntsa thiab Kab:Hnyav - txoj kab uas hla (#11 txog #18 / 32 mm txog 50 mm) couplers hloov lap splices nyob rau hauv ntom kem cores, txo steel tonnage ib pem teb, txo cov qhob ncuav blockages, thiab tswj rebar spacing txwv.
Phab ntsa Diaphragm & Sub-surface Cut-off Walls:Weldable couplers txuas rau cov qauv steel thav duab los yog embedded phab ntsa daim hlau tsim cov pob qij txha txhav ntawm cov phab ntsa slurry thiab cov slabs hauv pem teb tob hauv qab daus thiab subway chaw nres tsheb.
Nuclear thiab Heavy Industrial Infrastructure:Txias-swaged thiab siab-kev ua tau zoo threaded couplers muab kev thauj mus los tsis tu ncua hauv cov khoom siv hluav taws xob hnyav hnyav, lub hauv paus cua turbine, thiab cov pa roj carbon monoxide (LNG) tanks.
Kev xaiv & tsim kev txiav txim siab
Standard Parallel Threaded lossis Parallel Forged Couplers:Pom zoo thaum bar -kawg cov cuab yeej ua tiav muaj nyob rau ntawm qhov chaw thiab tsawg kawg yog ib qho rebar tuaj yeem tig tau dawb.
Txoj hauj lwm Threaded los yog txias -Swaged Couplers:Pom zoo thaum bar -kawg ua khoom siv muaj, tab sis tsis muaj rebar yuav tig tau (xws li, khoov bar los yog ua ntej-selembled tawb).
Grout Tes Tsho Couplers:Pom zoo thaum tsis muaj cov cuab yeej ua haujlwm nyob rau ntawm qhov chaw thiab daim ntawv thov suav nrog cov khoom ua vaj tsev precast nrog cov kab kos.
Bolted Shear{0}}Off Couplers:Pom zoo thaum tsis muaj cov cuab yeej ua haujlwm muaj nyob rau ntawm qhov chaw thiab cov qauv teb- txiav cov kab yuav tsum tau txuas ncaj qha yam tsis muaj xov lossis grouting.
Rotatable Bars:Standard parallel- threaded couplers yuav tsum tau ib lub bar tig ywj siab rau hauv lub tes tsho kom txog rau thaum zaum tag nrho.
Tsis yog-Rotatable / Fixed Bars:Thaum twg tsis tuaj yeem tig tau (piv txwv li, khoov rebars, ntev ua ntej- cov tawb sib dhos), xaiv Txoj Haujlwm Threaded Couplers (sab laug- txoj cai threads lossis ntev- xov locknut systems), Swaged Couplers, lossis Bolted Couplers.
Threaded Systems:Xav tau lub Hoobkas lossis qhov chaw-raws li txias- tshuab forging thiab xov dov khoom. Lub sijhawm ua haujlwm tsawg ntawm qhov chaw ua haujlwm ib leeg; yuav tsum tau calibration xyuas ntawm xov suab thiab qhov tob.
Bolted Systems:Yuav tsum tsis muaj cov cuab yeej npaj bar. Yuav tsum tau tus qauv huab cua cuam tshuam cov tsav tsheb lossis ntsuas tes torque wrenches los txiav lub taub hau ntsia hlau, ua rau lawv tsim nyog rau kev kho qhov chaw lossis thaj chaw deb.
Grout Tes Tsho Systems:Yuav tsum tau qhov chaw- sib xyaw tsis yog-shrink structural grout thiab siab grouting twj nrog rau kev soj ntsuam ntawm ambient curing kub (yam tsawg kawg +5℃/ 41℃F).
Coupler sab nraud txoj kab uas hla (OD) thiab tag nrho ntev txiav txim siab qhov yuav tsum tau ua vaj tse. Lub tes tsho loj (piv txwv li, lub tes tsho grout lossis bolted couplers) yuav tsum tau kuaj xyuas cov qauv kev pom tseeb ntawm kev tiv thaiv (piv txwv li, ACI 318 cov cai sib txawv) kom ntseeg tau tias kev sib sau ua ke kom zoo thaum muab tso rau hauv pob zeb.
Zoo & Kev Tshuaj Xyuas
Manufacturing & Process Quality Control:
• Raw Material Verification: Tshuaj ntsuam xyuas muaj pes tsawg leeg (Carbon Equivalent CEV tswj rau weldability) thiab ultrasonic flaw detection ntawm raw steel tuav los yog seamless hlab.
• Dimensional Inspection: Thread pitch diam gauges, go/no{0}}mus plug gauges for threaded couplers, inner diameter micrometer checks for swage/grout sleeves.
• Batch Tensile & Cyclic Testing: Tensile kuaj ntawm daim coupon qauv mus txog qhov tsis ua hauj lwm los xyuas cov qauv load hloov peev xwm sab nraum splice cheeb tsam.
Ntawm -Site Quality Assurance and Inspection Criteria:
• Parallel Threaded Splices: Kev tshuaj xyuas qhov pom ntawm cov xov raug suav sab nraum lub coupler (feem ntau<= 1 exposed thread) verified with a calibrated torque wrench to specified tightening values (e.g., 80–350 Nm depending on bar size).
• Bolted Splices: Xyuas kom tseeb tias 100% ntawm shear-tawm lub taub hau ntsia liaj qhov rooj tau snapped huv si ntawm kev teeb tsa torque, qhia tias muaj kev sib koom ua ke rau hauv lub rebar.
• Grout Sleeve Splices: Kev tshuaj xyuas cov dej ntws tawm thiab cov chaw nres nkoj cua kom paub meej 100% kab noj hniav; saib xyuas tus khub grout xeem ntsuas (100 mm x 100 mm los yog 50 mm x 50 mm) kom paub tseeb tias ncav cuag compressive zog yuav tsum tau (xws li, 85 MPa ntawm 28 hnub) ua ntej loading structural.
Muab & Customization Options
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Custom Sleeve Lengths thiab Phab Ntsa Thicknesses
Txiav qhov loj me rau qhov tsis yog- qhov loj me ntawm tus qauv, siab - qib steel specifications (piv txwv li, Qib 80 / 500 MPa / 600 MPa steel), lossis cov kev cai tshwj xeeb seismic zone.
Hloov Couplers
Dual - loj nyob rau hauv machining los txuas rebars ntawm txawv diameters (xws li, #11 mus rau #10, los yog 32 hli mus rau 25 hli) tsis muaj intermediate bars.
Cov Txheej Txheem Tshwj Xeeb
Kub-Dip Galvanizing (ASTM A153): Rau cov dej hiav txwv los yog siab -cov av noo.
Epoxy Txheej (ASTM A775): Rau choj lawj thiab chaw nres tsheb chaw nres tsheb raug rau deicing ntsev.
Zinc Electroplating / Dacromet Txheej: Los tiv thaiv- xeb tiv thaiv thaum lub sijhawm ntev ntawm qhov chaw cia.
Traceability thiab ntim
Kev cai batch laser-kos npe rau ntawm lub cev sib txuas, daim ntawv pov thawj zeb xeem (MTR EN 10204 3.1) suav nrog rau ib qho khoom xa tuaj, thiab ntim huab cua tsis zoo rau kev thauj mus los hauv hiav txwv.
Dab tsi cov neeg yuav khoom yuav tsum muab rau cov lus hais
Txhawm rau kom tau txais cov lus qhia tseeb thiab kev tshuaj xyuas ua raws, xa cov ntsiab lus hauv qab no:
Rebar Standard & Qib (xws li ASTM A615 Qib 60, BS4449 B500B)
Bar Diameters & Quantities (Metric: 12-50mm / Imperial: #4-#18)
Txoj kev txuas nyiam (Grout Tes Tsho, Threaded, Bolted, Weldable)
Cov kev xav tau ntawm kev ua tau zoo (ACI 318 Hom 1/2, ISO 15835)
Txheej / Corrosion Specs (Dub Hlau, Galvanized, Epoxy Coated)
Cov ntsiab lus ntawm daim ntawv thov (Cast-hauv- qhov chaw, Precast Phab ntsa/Kem, Retrofit)
FAQ
Thov ib daim Quote
Hu rau peb pab neeg ua haujlwm engineering kom tau txais cov ntaub ntawv cov khoom lag luam, thib peb-cov ntaub ntawv xeem thib peb, lossis qhov project- tus nqi tshwj xeeb rau kev sib txuas ntawm cov tshuab rebar.
Kev Pabcuam Kev Pabcuam & Kev Tshawb Fawb Ncaj Ncees: Cov ntawv xa tuaj tshuaj xyuas hauv 24 teev ua haujlwm los ntawm cov kws tsim khoom muag khoom.
Cov ntaub ntawv xav tau rau Kev Tshawb Fawb Engineering: Cov duab kos duab, lub sij hawm rebar, los yog cov ntawv qhia txog qhov project.
Peb nyob nraum kev rebar txuas tshuab manufacturers thiab lwm tus neeg nyob hauv Suav teb, tshwj xeeb hauv kev muab cov kev pabcuam zoo. Peb sov siab txais tos koj rau cov lag luam wholesale rebar txuas tshuab hauv Tshuag ntawm no los ntawm peb lub hoobkas.
