Me ke nufin IEE-Business Transmission Tower Foundation?

Zai na shi ne Transmission Tower Foundation?

Takaitar da Transmission Tower Foundation

Transmission tower foundation yana nufin kusurwa wanda ke taimaka hankali da tsakiyar zai na kuma ya haɗa masu gaji zuwa dukkan.

Na'urar Gaji

Kusurwar hankaluna ana iya lafiya da uku na'ura da gaji. Wadannan sun hada da:

• Gajin haske ko gajin ciki.

• Gajin fage ko gajin rufe.

• Gajin cikin tsaye a kofin mai karfi da kuma mai yau.

• Yawan gaji ko limit load don kusurwa zai iya zama 10% fiye da wadannan ga hankalin da suka dace.

Tsabon kusurwa zai iya yanayi waɗanda suke taimaka da gaji mai fiye saboda gajin ciki na tsawo.

Yawan cementi a kan baya da kuma ta hanyar, tare da koyarren fereti, zai iya zama ƙarin gajin ciki.

Paramatar Dukkan

Paramatar dukkan Don samun kusurwa, paramatar da aka bukata sun hada da:

• Limit bearing capacity of soil.

• Density of soil.

• Angle of earth frustum.

Wadannan bayanan za su samun a nan daga takarda na dukkan.

Bincike Ta Hanyar Taushe

Idan an yi bincike na tsari, ba haka ba, zai iya yi bincike ta hanyar taushe don in kusa da abubuwan gaji masu ƙaramin hankali, rufe, tsaye, da kuma tsuye. Taushe dukkan yana da muhimmanci a cikin kusa da gaji a kan kusurwa.

Taushe Da Rufe

Gajin rufe zai iya haɗa da yawan dukkan a kan tsawon pyramid na dukkan da jihohin da suka ciwo da ƙarshe a kan ƙarshe na dukkan a cikin dukkan mai kyau. Yawan dukkan zai iya samun don hakkin da aka bayyana (Fig.3). Yawan cementi a kan baya da kuma ta hanyar, tare da koyarren fereti, zai iya haɗa da gaji a kan rufe. Idan tsawon pyramid na dukkan na biyu suka kudana, tsawon pyramid zai iya ciwo da tsaye na ƙarshe na ƙarshe da ke barazan tsakiyar hankali. Over load factor (OLF) na 10% (Daudu ɗaya) zai iya haɗa da gaji na takawa, ya'ni OLF = 1.10 don suspension tower da 1.15 don angle including dead end and anchor tower. Amma, don hankalin da suka da muhimmanci OLF zai iya zama 1.20.

Taushe Da Gajin Ciki Na Kusurwa Na Transmission Tower

Wadannan na'urar gaji zai iya haɗa da taushe dukkan:

• Gajin ciki da koyarren cementi a kan baya zai iya haɗa da a kan yawan kasa na kasa na kusurwa. Moment due to side thrust forces at the bottom of the footing.

• Samun tsabo na tsabon kusurwa zai iya samun don wadannan na'urar gaji. Idan an samun yawan taushe na ƙarshe (τ) saboda wadannan na'urar gaji, yawan taushe da aka tabbatar zai iya zama 25%.

Taushe Da Gajin Tsaye Na Kusurwa Na Transmission Tower

Chimney zai iya samun don yadda ake samun na limit state method don na'urar gaji na ƙasar, fage da haske, da kuma moment na ƙaramin tsaye. A cikin wannan binciken, taushe na cementi zai iya ƙara.

Taushe Da Rufe Na Stub Na Kusurwa Na Transmission Tower

OLF na 10% (Daudu ɗaya) zai iya haɗa da, ya'ni OLF = 1.10 don suspension towers mai kyau da 1.15 don angle tower including Dead end/anchor tower. Don hankalin da suka da muhimmanci OLF zai iya zama 1.20.