ʻO ke alahaka pahu pahu pahu prestressed me ka pūnaewele kila, ʻike ʻia hoʻi ʻo ke alahaka ʻo ka pahu pahu pahu me ka pā kila ma kahi o ka pūnaewele paʻa o ka pahu pahu pahu prestressed e like me ka pūnaewele.ʻO kāna hiʻohiʻona kupaianaha ʻo 10 ~ A 20 mm ka mānoanoa pā kila e pani ana i kahi pūnaewele paʻa me ka mānoanoa o 30 a 80 cm.

Ke kumu
I nā makahiki 1980, ua hoʻolālā a kūkulu mua ʻo Palani i kahi alahaka hui hou-cognac me nā pūnaewele kila i hoʻopili ʻia ma kahi o nā pūnaewele pahu pahu pahu maʻamau.Ma hope mai, ua kūkulu ʻia kekahi mau alahaka ʻo Maupre, nā alahaka ʻo Asterix a me Dole corrugated steel.Alahaka pūnaewele.

Hoʻomohala
Mai ka 1990s, ua aʻo pū ʻo Iapana i kēia ʻano alahaka.Ma muli o nā alahaka like ma Farani, ua kūkulu ia i nā alahaka e like me ka New Bridge, ka Bengu Bridge [1], a me ka Pine No. 7 Bridge.Loaʻa nā alahaka kaola mau a me nā alahaka paʻa paʻa mau, e hoʻonui i ka laulā o ka hoʻohana ʻana i ia mau alahaka a hoʻomohala i nā ʻenehana hoʻolālā a me ke kūkulu ʻana.

Kuloko
ʻAʻohe alahaka maoli no ka pūnaewele kila corrugated prestressed concrete composite box girder.I ka manawa like, ua kūkulu ʻia kekahi mau alahaka o kēia ʻano ma Farani/Kelemānia, ʻoi aku hoʻi ma Iapana.Ke ulu nui nei nā ʻenehana hoʻolālā a me ke kūkulu ʻana.ʻO ka pahu pahu pahu hoʻopaʻa paʻa mua i hoʻopaʻa ʻia me ka pūnaewele kila corrugated ua kūpono loa ia no ka pahu pahu mau me ka laulā a me ka nui.Me ka hoʻomohala ʻana a me ka hoʻonui ʻana i ka nānā ʻana a me ka noiʻi ʻana o kēia hale ma Kina, a me ka ʻike ʻana i ka ʻike hana ʻenekinia haole, e hoʻohana ʻia ka prestressed concrete composite box girder me corrugated steel web i ke kūkulu ʻana i nā alahaka ma Kina.