EngineeringKhaga · Class 6-8
Building khadi kaise rehti hai?
Tumhari chaar manzil waali school building itni bhaari hai — phir bhi dharti mein dhans kyon nahi jaati?
Socho pehle… phir dekho jawab
Kyunki engineer wazan ko dheere-dheere neeche pahunchate hain: chhat se beam, beam se column (khamba), aur column se chaudi foundation, jo wazan ko badi zameen pe phaila deti hai.
Ek building ka wazan ek chain ki tarah neeche jaata hai. Chhat aur deewar ka wazan beams pe, beams ka columns pe, aur columns ka neeche foundation pe. Isse load path kehte hain.
Foundation chaudi kyon? Jab wazan badi jagah pe phailta hai toh zameen pe dabaav (pressure) kam padta hai. Wahi logic jisse chaude pairon waala haathi keechad mein kam dhansta hai, aur nukeeli keel aasani se lakdi mein ghus jaati hai.
Isiliye building banane ke rules hote hain — kitni manzil, kaisa saria-cement, kitni gehri neev. Bina plan ke upar-upar manzilein jodne se load path toot sakta hai, aur building khatarnaak ho jaati hai.
Ghar pe try karo
Teen A4 kaagaz ko gol-gol lapet ke tube banao aur tape laga do. Unhe khada karo aur upar dheere-dheere kitaabein rakho. Kitni kitaabein tik gayi? Ab kaagaz ko bina lapete khada karke dekho — fark samjho!
Wow!
Sirf kaagaz ki teen patli tubes kai kitaabon ka wazan utha leti hain — shape hi asli taakat hai.
3 sawaal
- Building ka wazan aakhir mein kahan jaata hai?
Jawab dekho
Foundation se zameen mein. Load path chhat se beam, column hote hue foundation aur zameen tak jaata hai.
- Foundation chaudi kyon banayi jaati hai?
Jawab dekho
Wazan phaila ke zameen pe pressure kam karne ke liye. Zyada area pe wazan = kam pressure = kam dhansna.
- Building ke khade khambon ko kya kehte hain?
Jawab dekho
Columns. Columns khade khambe hain jo beams ka wazan neeche foundation tak le jaate hain.
NCERT se jodo: NCERT Class 8 Science — force aur pressure