1, Kev txheeb xyuas ntawm kev lag luam hlau

Cov qauv hlau yog ib lub qauv uas muaj cov khoom siv hlau, uas yog ib hom qauv tsev tseem ceeb. Cov qauv no feem ntau yog ua los ntawm cov hlau beams, steel kem, steel trusses thiab lwm yam khoom ua los ntawm cov hlau seem thiab cov hlau phaj, thiab siv silane, pure manganese phosphating, ntxuav dej, ziab, galvanizing thiab lwm yam txheej txheem tshem tawm xeb thiab tiv thaiv xeb. Cov vuam seams, bolts lossis rivets feem ntau yog siv los txuas cov tswv cuab lossis cov khoom. Vim nws qhov hnyav sib dua thiab yooj yim tsim, nws yog dav siv hauv cov nroj tsuag loj, chaw ua si, super high rises thiab lwm yam teb. Nws muaj cov yam ntxwv hauv qab no: 1. Cov khoom siv muaj zog thiab qhov hnyav sib dua; 2. Cov hlau tawv, zoo plasticity, cov khoom sib xws, kev ntseeg siab ntawm cov qauv; 3. Qib siab ntawm kev siv tshuab hauv kev tsim thiab kev teeb tsa cov qauv hlau; 4. Kev ua tau zoo ntawm cov qauv hlau sealing; 5. Cov qauv hlau yog cua sov-resistant tab sis tsis fire-resistant; 6. Cov qauv hlau tsis zoo corrosion; 7. Cov pa roj carbon tsawg, txuag hluav taws xob, ntsuab thiab rov siv dua.

2, Kev loj hlob ntawm kev lag luam hlau

Nyob rau xyoo tas los no, kev lag luam hlau hauv Suav teb tau dhau los ntawm kev pib qeeb mus rau kev loj hlob sai. Xyoo 2016, lub xeev tau tshaj tawm ntau daim ntawv cai los daws qhov teeb meem ntawm cov hlau ntau dhau thiab txhawb kev txhim kho ntsuab thiab ruaj khov ntawm kev lag luam kev tsim kho. Xyoo 2019, Ministry of Housing and Urban Rural Development tau tshaj tawm "cov ntsiab lus tseem ceeb rau xyoo 2019 txoj haujlwm ntawm lub chaw saib xyuas kev lag luam kev tsim kho ntawm Ministry of Housing and Urban Rural Development", uas yuav tsum tau ua tiav txoj haujlwm sim ntawm cov qauv hlau prefabricated tsev; Thaum Lub Xya Hli 2019, Ministry of Housing and Urban Rural Development tau pom zoo rau cov phiaj xwm sim ntawm Shandong, Zhejiang, Henan, Jiangxi, Hunan, Sichuan, Qinghai thiab lwm lub xeev xya lub xeev los txhawb kev tsim kom muaj cov qauv hlau prefabricated tsev tsim kho.

Nyob rau hauv kev cuam tshuam ntawm cov cai zoo, kev thov ua lag luam thiab lwm yam, thaj chaw tsim kho tshiab ntawm cov tsev ua los ntawm cov hlau prefabricated tau nce ze li ntawm 30%. Cov khoom tsim tawm ntawm cov qauv hlau hauv tebchaws kuj qhia txog kev nce siab txhua xyoo, nce los ntawm 51 lab tons hauv xyoo 2015 txog 71.2 lab tons hauv xyoo 2018. Xyoo 2020, cov khoom tsim tawm ntawm cov qauv hlau tau tshaj 89 lab tons, suav txog 8.36% ntawm cov hlau nyoos,