Pankhani ya pansi pamtunda, mitengo yambiri si yabwino. Mwachitsanzo, joists omwe ali 12 "zakuya ali, moyenera, amphamvu kuposa joists omwe ali 10" zakuya. Pokhala ndi nyumba yamanyumba iwiri, mukufuna kuwonjezera kutalika kwa denga kwa mlingo wapansi. Choncho, osakanikirana kwambiri amapereka pansi pansi ndi masentimita angapo ofunikira.
Zojambula pansizi zikuwonetseratu miyeso yeniyeni ya matabwa ( osagwirizana ndi matabwa opangidwa ndi laminated ) ndipo amawagwirizanitsa ndi zinthu zomwe mungathe kugula ku sitolo yanu yomanga nyumba .
Samalirani kwambiri momwe njira yowonjezera imasinthira nthawi yomwe mumasintha chinthu chimodzi, monga kugawa kwa joist kapena kutalika kwa nthawi.
Khalani ndi Moyo Wotsalira
- Umoyo wamoyo umatanthauza kuti ojati akunyamula katundu wochokera ku malo - anthu ndi zinthu.
- Zolemetsa zakufa zimangotanthauza zinthu zomwe sizikusuntha, monga zinthu zomwe mungasunge m'chipinda cham'mwamba.
Pali mitundu yambiri ya moyo ndi katundu wakufa. Chipinda choyamba chimakhala ndi zofunikira kwambiri kuposa katundu wapansi-pansi (makilogalamu 40 pa piritsi imodzi ndi 30 psf). Chipinda chogwiritsiridwa ntchito kokha chogona chingathe kunyamula psp 30 zokha, pamene garaja imayenera mphindi 50 kapena kuposa.
Mitengo ya Wood: Hem-Fir
Mitengoyi imayambira pamtengo wapamwamba. Hem-fir ndi mtundu wambiri wa matabwa ndipo ndi mitundu yosiyanasiyana ya hemlock ndi fir. Ichi ndi mtundu wa mitundu yomwe mungapeze ku Lowe's, Home Depot, kapena Menards. Mwanjira iyi, mitundu ndizofunika. Mwachitsanzo, 2x10 inch hem-fir akhoza kulemera mamita 15 pansi pa zikhalidwe zina.
Komabe, spruce ya Austria, mitundu yochokera kunja, inatha kukhala ndi theka lamphindi lachangu pansi pa zofanana.
Potsirizira pake, simudzapeza mitundu yofanana ya mitengo ya Lowe kapena Home Depot, ngati malo osiyana adzatenga mitundu yosiyanasiyana ya nkhuni. Hem-fir amasonyeza malo ogulitsira ku West Coast; nsomba zoyera ku East Coast.
1. Kuonjezera Ndi 12 Ft. Mabwalo ndi 16 mkati. On-Center (OC) Joists
Chitsanzo:
Mukumanga kuwonjezera. Chimodzi mwa zipinda ndi mamita 12. Muyenera kuyendetsa mtunda wa mamita 11,5 kuti mutenge katundu wamoyo.
Gulani Izi:
- Dera (mainchesi): 2x8
- Kutalika (Mapazi): 12
- Mitengo ya Wood: Hem-Fir
- Wogulitsa: Lowe's
- Dzina lenileni la mankhwala: Chosankha Chokwanira 2 x 8 x 12 Chophimba cha Hem-Fir S4S Chomala
Kuyika Malo Osakanikirana (mainchi, On-Center): 16
2. Kuwonjezera Ndi 12 Ft. Zinyumba ndi Joists Zomwe Zigawanika Kwambiri
Chitsanzo:
Muyenera kuyendetsa mtunda wa mtunda womwewo, mamita 11,5, kuti mutenge katundu wathanzi, koma zochitika zimakuwuzani kuti mutha kungolowetsa machesi onse 24.
Gulani Izi:
- Dera (mainchesi): 2x10
- Kutalika (Mapazi): 12
- Mitengo ya Wood: Hem-Fir
- Wogulitsa: Lowe's
- Dzina lenileni la mankhwala: Chosankha Chokwanira 2 x 10 x 12 Chophimba cha Hem-Fir S4S Chomala
Kuyika Malo Osakanikirana (mainchi, On-Center): 24
3. Kuonjezera Ndi 16 Ft. Mabwalo
Chitsanzo:
Mukumanga chipinda chimodzi cha nyumba yanu yomwe ili mamita 16. Izi zikutanthauza kuti muyenera kuyang'ana patali mtunda wa mamita 15,5 kuti mutenge katundu wamoyo.
Gulani Izi:
- Dera (mainchesi): 2x12
- Kutalika (Mapazi): 16
- Mitengo ya Wood: Hem-Fir
- Wogulitsa: Lowe's
- Dzina lenileni la mankhwala: Chosankha Chokwanira 2 x 12 x 16 Chophimba cha Hem-Fir S4S Chokoma
Kuyika Malo Osakanikirana (mainchi, On-Center): 16
4. Ndondomeko Yophatikiza, 8 Ft. Kutalika
Chitsanzo:
Mukumanga msonkhano. Malo ogona anu amayenera kutalika mtali wa mamita 8 kuti akhale ndi moyo wamoyo.
Gulani Izi:
- Dera (mainchesi): 2x6
- Kutalika (Mapazi): 10
- Mitengo ya Wood: Hem-Fir
- Wogulitsa: Lowe's
- Dzina lenileni la mankhwala: Kusankha Kwakukulu 2 x 6 x 10 Nkhama Youma Hem-Fir S4S
Ngakhale kuti mamita asanu ndi awiri ndi ochepa chabe, kumbukirani kuti iyi ndi msonkhano, kotero muyenera kulingalira zinthu zolemetsa kwambiri monga makina oyendetsa ndi macheka.
Kodi izi 2x6 zikhale zokwanira ngati muli ndi katundu wolemetsa pamsonkhanowu, kapena izi zingagwiritsidwe ntchito pa ntchito yochepetsera? Izi ndiziganizidwe ndi pansi joist spans.
Kuyika Malo Osakanikirana (mainchi, On-Center): 16
Yang'anani matebulo a Span
Kuwoneka mopanda phokoso kumalo ophatikizana kungapezeke kuchokera kuzipangizo zamakono kapena matebulo, ena mwa iwo omwe ali pansipa.
Zolemba zenizeni zowonjezera ziwerengero zimangopangidwa ndi wokonza makina kapena makontrakitala.
Malo ogwiritsidwa ntchito, kusokoneza pansi pansi, ndi kulemba mfundo ndizowonjezera zina zomwe injini kapena makontrakita angayang'ane kuti adziwe momwe amachitira.