Hkrang shala ai nta npawt nhpang

Corrugated Roof Sheet gaw nsam hpraw-} n-gang hte galaw da ai laika buk rai nna, dai hpe shinggrup da nna, katsi ai-tent gaw, n-gun n rawng ai hkrang amyu myu de shang wa ai. Ndai laika buk gaw, nsam hpraw ai hte n-gun n-gun hpe ninghkap lu ai atsam hpe shingdaw nna, n-gun n-gun hpe n-gun n-gun hte shingdaw nna, nta ntsa, bunghku ni, nta kata hte shinggan mawn sumli ai lam ni hte kaga hkai sun ni hpe gawgap ai hta grai lang ai.

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(1) Base arung arai - n-gun n rawng ai n-gang n-gang;

(2) Coating - aluminum-inc alloy (sh) wan n-gun n-gun n-gun n-gun-copper-chromium n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun hpe n-gun jaw ai tsi mawan;

(3) Coating - epoxy resin primer + acrylic topcoat;

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Steel nta ntsa ni hpe hpaga lam hte hpaga lam hte seng ai nta ni hta grai lang ai majaw, shanhte a ngang grin ai lam hte manu jahpu n jaw ra ai majaw, aten galu- aten na bungli galaw lu na matu, aten tup gram lajang ra ai. Lahta na lam ni gaw, n-gang ntsa gram lajang na matu ahkyak ai lam ni rai nga ai:

Tengman ai lam hte jep joi ai lam

Aten tup san seng ai lam:

Hpun npu hpe kalang mi pyi n law htum jep yu nna, hpun lakung ni, nhprang arai ni hte kaga n hkru n kaja ai lam ni hpe yeng seng kau u.

5% sodium hypochlorite ntsin hte nta ntsa hpe jasan jaseng nna, minit 20 daram dung nna, hose hte flush galaw dat u.

Hka htung ni hpe aten tup jasan jaseng u ( laning mi hta n yawm htum masum lang) pat da ai hte hka n-gun jat wa na hpe makawp maga u.

Hkamja lam jep joi ai lam:

Ladder ntsa kaw nga ai shaloi, matut mahkai ai lam masum (n yawm htum lata langai hte lagaw lahkawng) hpe hkan sa u.

Lam hkawm ai shaloi ngang grin ai lam a matu magri studs ni hte ni htep hkra tsap nna, ra ai rai yang hpaji ninghkring langai hpe shaga la u.

Hkringmang daju a grup yin shingra tara hpe hparan ai lam:

Mowing the roof Remove branches near the roof to prevent leaf accumulation and algae growth. Keep trees and shrubs a sufficient distance from the roof (>3m for trees and >1.5m gaw hpun ni a matu re).

II. Anti-tcorsion hpe gram lajang ai lam

Rust Tsi lajang ai lam:

Hkring hkum 24 laman hta, n-gun n rawng ai battery n-gun hpe pat shingdang na matu, tsi lajang u.

Kaji ai rust (<30% area): High-pressure clean, then sand. Apply an anti-rust primer (such as epoxy zinc yellow) and two coats of fluorocarbon topcoat.

Moderate n-gun (30%-50%): daw mi hpe galai na matu myit yu u. Manu dan ai arung arai ni hpe shinggyin tawn da ai shara ni a matu kalang ta galai na matu hpaji jaw da ai.

Severe rust (>50% (sh) deformation): Hkum tsup ai hku galai shai na matu ahkyak ai. Plating hpe hpaji jaw ai. Aluminum-zinc laika (lifespan 8-10 ning jat wa ai)

Corrosion makawp maga ai lam:

Hka hkin gau makau grup yin ni grai law ai: Masum ning shagu sumla hkrung a n-gun hpe jep yu u. 30% jan sum mat ai rai yang, buga na jahpan hpe bai gram lajang u.

Kata na hka katsi ai makau grup yin: Inspection hpe 5 ning du hkra jat mai ai.

Yawng hpe gram lajang ai aten: 8-10 ning (teng man ai hku hkra machyi ai masa ni hpe madung tawn nna gram lajang ai).

Corrosion makawp maga ai arung arai ni hpe lata ai lam:

Epoxy zinc{{0}rich primer ngu ai n-gun rawng ai coating system hpe lang u (zinc n-gun 80% hta grau kaba ai (sh) dai hte maren + polyurethane topcoat hpe lang u. Sa 2.5, n-gun n-gun 40-70μm, 250μm hta grau kaba ai (sh) dai hte maren sha ai.

III. Structural stability hpe gram lajang ai lam

Weld point jep joi ai lam:

Infrared thermal imaging hpaji hpe jai lang nna, weld n kaja ai lam ni hpe lawan ai hku mu lu na matu, jep joi ai lam hpe 300% jat wa shangun ai.

Ultrasonic flaw detectors ni gaw 50mm galu ai steel plate ni hpe shang lu nna, shut ai lam hpe mu lu ai.<0.5%.

K{0}}}hpung hpe jep joi ai lam hpe myit maju jung nna, hkum tsup ai hku shang lu na matu, galai shai ai lit ni hpe hkam la ai.

Deformation Monitoring:

Shaning shagu marang htu ai aten garai n du shi yang, ahkyak ai node ni hta shara htawt sit ai lam hpe shadawn na matu, total station hpe lang u.

20m shagu hta ±3mm daram hkrak ai hte shara langai hpe yu u.

Dai ahkang jaw ai mid{0}}}span n-gang crane beam ni hpe n-gun n-gun n-nga ai gaw L/600 (L= span re. Ndai shadawn sharam hta lai nna, deflection langai ngai hpe n-gun jaw ra ai.

Connector jep sagawn ai lam:

Torque shadawn ai lam hpe masum ning shagu galaw ai. Bolt n-gun ni hpe jep yu na matu wrench lang nna, ±10% laman hta pre{1}} shi a torque hkam sharang ai lam hpe gram lajang u.

Microcracks ni hpe sawk sagawn na matu magnetic flaw detector hpe lang nna, katsi ai hka lawng ni hpe mu lu na matu infrared thermal sumla hkrung hpe lang u.

IV. Hka n shang hkra galaw ai System hpe gram lajang ai lam

Joint tsi lajang ai lam:

Nlung hte n-gup n-gu ni hpe n-gup, n-gup magap, screw n-gup ni hpe jep yu u.

Hten za mat ai sealant ni hpe shaw kau nna, neutral silicone (sh) polyurethane sealant hte bai gram lajang u.

Gutter Joint Tsi lajang ai lam: Nano{0}}rust hpe shaw kau ngut ai hpang, laksan hka n shang ai coating hpe bang nna, polyester sheeting hte ka-up da u.

Sealant galai ai ladat:

Dai hpang, n-gun n rawng ai shara, hka htung pru ai shara, hte kaga shara ni hta n-gun n rawng ai shara ni hte nsam hpraw ai steel plate a shingdu hpe jep yu u.

Atsawm sha san seng u ga. Shawng na sealant hpe shaw kau nna, cement mortar (sh) galai shai ai asphalt sealant hte seal galaw u.

Sealant nnan hpe bang ngut ai hpang, 250mm dam ai butyl tape hpe lang nna, seal hpe grau kaja hkra galaw u.

Hka n shang hkra galaw ai arung arai ni hpe lata la ai lam:

Neutral silicone adhesive: 15-20 ning tup nbung laru hpe ninghkap lu ai, Tssile n-gun 2.5MPa hta grau kaba ai (sh) maren sha rai nga ai, 40-150℃lapran na nbung laru a matu htuk manu ai.

Polyurethane adhesive: Kaja ai elastic bai gram lajang ai lam, 400% du hkra galu kaba wa ai, n-gun ja ai hkum hkrang ni a matu htuk manu ai.

Butyl tape: Kalang ta n-gun rawng ai, 5-8 ning tup nbung laru hpe ninghkap lu ai, nail hka htung hpe pat da na matu htuk manu ai.

V. Nbung laru n-gun ja ai.

Typhoon makawp maga ai lam:

Hpa majaw nga yang, n-gun rawng ai nta ntsa hpe hkap la nna, madi shadaw ai nta hpe n-gun shaja ya u.

Nbung n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-gun n-rawng ai n-pu n-nga ai lam hpe shayawm ya lu ai.

Anchor point ni hpe tsaw ai{0}}}risk zawn re ai shara ni hta jat bang nna, nta ntsa na panel jut ni hte nbung laru ni hpe bang u.

Nbung laru n du shi yang, nbung pru ai pipe hte lamu nhtoi zawn re ai shang wa ai lam ni hpe jep yu nna n-gun jaw u.

Snowstorm hkyen lajang ai lam:

Kalang ta 30 cm jan ai hka lim ai lam (load sadi jaw ai htingnu).

n-gun n-gun ni hpe jep yu nna, aten dep anti-rust masat masa ni hpe hkan sa na.

Long{0}}}}} ai shara ni hpe hkum tsup ai hku jep joi nna, hka lim ai hpe lawan ladan yeng seng kau ra ai.

After a snowstorm, inspect structural deformation, especially the verticality of steel columns (deviations >3‰ hpe gram lajang ra ai).

VI. Professional gram lajang ai lam ni hpe hpaji jaw ai lam

- sung sung jep joi ai lam hta:

ning shagu hpaji ninghkring ni hpe jep joi ai lam galaw u. {- hpe sung sung gram lajang ai hta, npawt nhpang hpe jep joi ai lam, arung arai ni hpe jep joi ai lam, system a bungli galaw ai lam hpe chyam dinglik ai lam ni lawm ai.

Share shagan ai manu jahpu hpe myit yu ai lam;

5 ning laman bai gram lajang na matu yawng jai lang ai gumhpraw gaw, laksan hku nna, hkrak galai shai ai hta na 1.7 lang rai nga ai. Moderate (sh) grai sawng ai rust a matu, gram lajang ai hta grau nna galai shai ai lam a sut masa lam hpe jep joi na matu hpaji jaw ai.

Gawgap ai lam hpe yu reng ai lam:

"Hap hpe gram lajang ai" n-gun hpe sadi u: Low- quality self{1}}}tapping screws ni gaw lahkawng ning laman n mai koi yen ai sha n-gun rawng wa na re. "Hka n shang ai coating" ngu ai hkalem hkalau ai lam ni hpe koi nga u: 90% polyurethane coatings ni gaw shata 18 na ai hpang chalk byin na re.

Lahta na gram lajang ai lam matsun ni hpe hkan sa ai hku nna, n-gang ntsa na asak hpe grai jat ya lu ai sha n-ga, akajawng sha hkra machyi na masa hpe mung shayawm ya lu ai. Hpang na gram lajang ai lam a matu reference hpe jaw na matu, jep joi ai lam hte galaw ai lam shagu hpe ka da ai, hkrak tup gram lajang ai lam hpe gram lajang na matu hpaji jaw da ai.