Vim li cas thiaj muab cov bracings?

Cov txheej txheem:

Vim li cas thiaj muab cov bracings?
Vim li cas thiaj muab cov bracings?
Anonim

A bracing system pab kom ruaj khov lub ntsiab girders thaum lub sij hawm tsim kho, los pab rau kev faib khoom ntawm cov teebmeem thiab muab kev txwv rau compression flanges lossis chords qhov twg lawv yuav tsis pub dawb mus buckle tom qab.

Lub hom phiaj ntawm kev bracing yog dab tsi?

Lub luag haujlwm tseem ceeb ntawm kev sib khi yog txhawm rau muab kev ruaj ntseg thiab tiv thaiv cov loads sab nraud, los ntawm kab pheeb ces kaum steel los yog los ntawm cov pob zeb 'core'. Rau bracing thav duab, kab teeb thiab kab tsuas yog tsim los txhawb nqa ntsug, txij li cov txheej txheem bracing yuav tsum nqa tag nrho cov khoom seem.

Vim li cas bracing muab rau hauv kab?

Bracing nyob rau hauv ntsug dav hlau (nruab nrab kab ntawm kab) muab kev thauj mus los hloov cov kab rov tav mus rau hauv av thiab muab kev ruaj ntseg rau sab.

Vim li cas bracing yog muab hauv cov qauv steel?

Thaum cov qauv steel rau tawm tsam lub zog sab nraud thiab ua rau kom muaj zog ntawm cov ncej steel, bracings ua lub luag haujlwm tseem ceeb heev. Bracing yuav ua rau cov qauv indeterminate. Tab sis nws stiffens tus qauv thiab kuj pab tiv thaiv sway ntawm tus qauv. Bracings yog cov tswv cuab ncaj thiab nqa tsuas yog axial rog.

Lub hom phiaj tseem ceeb ntawm txoj kab pheeb ces kaum hauv cov ncej steel braced yog dab tsi?

Diagonal bracing yog ib qho ntawm cov qauv ntawm txhua lub tsev. Nws muab kev ruaj ntseg rau sab nraud, tiv thaiv kev tawg ntawm phab ntsa, lawj, ru tsev thiab ntau lwm yam qauvelement.

Pom zoo:

Nthuav cov khoom
Pob splanchnic paj hlwb synapse?
Nyeem ntxiv

Pob splanchnic paj hlwb synapse?

Cov hlab ntsha loj dua splanchnic taug kev los ntawm diaphragm thiab nkag mus rau hauv plab kab noj hniav. Nws fibers synapse ntawm celiac ganglia. Cov hlab ntsha txhawb nqa rau lub celiac plexus, lub network ntawm cov hlab ntsha nyob rau thaj tsam ntawm qhov chaw ntawm lub cev celiac ceg ntawm lub plab aorta.

Yuav coreopsis puas tawg rau lub caij ntuj sov?
Nyeem ntxiv

Yuav coreopsis puas tawg rau lub caij ntuj sov?

yog qhov kev xaiv zoo meej. Nrog ntau tshaj 80 hom coreopsis, muaj ntau yam kom haum txhua lub vaj tsim. Haiv neeg rau North America, coreopsis nroj tsuag loj hlob nyob rau hauv upright clumps thiab feature masses ntawm kaj, showy, daisy-zoo li paj thoob plaws lub caij ntuj sov.

Lub ntsiab lus ntawm kev hush up yog dab tsi?
Nyeem ntxiv

Lub ntsiab lus ntawm kev hush up yog dab tsi?

: tsi ntsiag to kuv hais rau nws kom txhob maj. slang txhais li cas? Koj hais 'Hush! ' rau ib tug thaum koj nug lossis qhia kom lawv nyob ntsiag to. Nkauj ruam ruam? "Tseem" yog lus Southern uas hais tias " shut up .