Scaffolding, tseem hu ua scaffold lossis staging, yog cov qauv ib ntus uas siv los pab txhawb cov neeg ua haujlwm thiab cov ntaub ntawv los pab rau kev tsim kho, kho thiab kho vaj tse, txuas hniav thiab txhua lwm tus qauv tsim neeg. Scaffolds tau siv dav hauv qhov chaw kom tau txais kev nkag mus rau qhov siab thiab thaj chaw uas yuav txwv tsis pub nkag mus. Cov kev rau txim rau yam uas tsis nyab xeeb yog qhov yuav ua rau tuag lossis raug mob loj. Scaffolding tseem siv tau rau hauv cov ntawv siv rau kev ua haujlwm thiab ua chaw, chaw zaum zoo nkauj, theem kev hais kwv txhiaj, nkag mus saib / saib cov yees, chaw ua yeeb yam, pas dej duav, ib nrab kav dej thiab kos duab.
Muaj tsib hom tseem ceeb ntawm scaffolding siv thoob ntiaj teb niaj hnub no. Cov no yog Cov Tube thiab Coupler (haum) Cheebtsam, prefabricated modular system scaffold Cheebtsam, H-thav duab / fa modade qhov system system scaffolds, ntoo scaffolds thiab xyoob scaffolds
Scaffolding tau teeb tsa los ntawm cov tuam txhab lag luam nrog cov qauv ntawm ntau thiab tsawg. Cov txheej txheem tau hloov kho los ntawm Daniel Palmer Jones thiab David Henry Jones. Cov niaj hnub niaj hnub scaffolding cov qauv, kev coj ua thiab txheej txheem tuaj yeem yog tus txiv neej thiab lawv cov tuam txhab: Rapid Scaffold Tie Company Ltd, Tubular Scaffolding Company thiab Scaffolding Great Britain Ltd (SGB).
David Palmer-Jones patented" Scaffixer", tus txuas txuas txuas muaj zog dua li cov hlua uas tig kho kev tsim kho. Xyoo 1913, nws lub tuam txhab tau cog lus rau kev rov tsim kho ntawm Buckingham Palace, thaum lub sijhawm nws Scaffixer tau txais ntau qhov kev tshaj tawm. Palmer-Jones tau ua raws li no nrog cov" uas tau txhim kho; Universal Coupler" nyob rau xyoo 1919 - qhov no tau dhau los ua kev lag luam tus qauv txuas ntxiv thiab tau nyob twj ywm li niaj hnub no.
Cov kev nce qib hauv cov khoom siv hlau hauv thoob plaws thaum ntxov xyoo pua 20 pom qhov kev qhia ntawm tubular steel kav dej (hloov ntawm cov ncej ntoo) nrog cov txheej txheem qhov ntev, tso cai rau kev lag luam kev sib pauv ntawm qhov chaw thiab txhim kho cov qauv kev ruaj ntseg ntawm cov pob scaffold. Kev siv cov kab tav viav vias sib xyaw kuj tau pab txhim kho kom ruaj ntseg, tshwj xeeb tshaj yog nyob ntawm cov tsev siab. Thawj cov kab ke tau coj mus rau tom khw los ntawm SGB xyoo 1944 thiab tau siv dav siv rau kev tsim kho tom qab ua tiav.
Cov hauv paus zoo yog qhov tseem ceeb. Feem ntau pob scaffold kev ua haujlwm yuav xav tau ntau dua ntawm cov phiajcim yooj yim kom muaj kev nyab xeeb nqa thiab kis lub nra. Scaffolding tuaj yeem siv tau yam tsis muaj daim phiaj puag saum cov pob zeb yooj yim lossis cov khoom siv sib tw zoo sib xws, txawm hais tias lub hauv paus cov phaj yeej ib txwm pom zoo. Rau ntawm cov npoo zoo li pua pob zeb lossis tarmac hauv paus phaj tsim nyog. Rau cov softer lossis ntau qhov chaw tsis ntseeg siab uas tsuas yog cov laug cam yuav tsum siv, hauv qab ib tus qauv ib pawg tswj hwm yuav tsum yog tsawg kawg 1,000 square centimeters (160 in2) tsis muaj qhov ntev tsawg dua 220 millimeters (8.7 hauv), lub thickness yuav tsum tsawg kawg 35 millimeters (1.4 hauv). Rau cov dej num hnyav dua lub pob scaffold ntau ntau qhov tseem ceeb baulks teev nyob rau hauv cov pob zeb ua kev xav tau. Ntawm qhov tsis ncaj hauv av theem yuav tsum tau txiav rau lub hauv paus phaj, qhov tsawg kawg ntawm qhov txav ntawm thaj tsam ntawm 450 millimeters (18 hauv) raug pom zoo. Lub platform ua haujlwm xav tau qee yam ntsiab lus kom nyab xeeb. Lawv yuav tsum nyob nrog qhov zoo, muaj ob kab thaiv kab thiab ntiv taw thiab nres cov laug cam. Muaj kev nyab xeeb thiab kev nyab xeeb kev nkag mus los kuj yuav tsum muab.
