Ọtụtụ n'ime uwe anyị na-egosipụta ọmarịcha bead na aka uwe

Ntinye oru ngo

• Ụlọ ọrụ anyị na-enyekarị eriri ígwè prestressed maka prefabrication nke àkwà mmiri sink na eriri ọnụnọ maka akwa akwa dị mkpụmkpụ na-arụ ọrụ a.
  1. The superstructure nke isi akwa bụ n'ụdị prestressed ihe agbanwe cross-ngalaba igbe girder, obosara nke isi akwa bụ 33.5 mita. A haziri akwa mmiri nso na slats, nke nwere otu obosara nke mita 12.5, akwa a na-abịaru nso na-enweta ụkpụrụ ọkọlọtọ 30-mita n'ogologo obere igbe igbe. Enwere mkpokọta igbe igbe dị 96 na akwa mmiri Lile nke dị mita 30, na ibuli otu igbe igbe dị ihe dị ka 100 tọn.

• 2. A na-eme eriri eriri eriri nke 15-91 epoxy sprayed steel strand na nchekwa HDPE okpukpu abụọ, otu eriri dayameta φ15.2mm, ike ike fpk = 1860MPa. (ụkpụrụ ọkọlọtọ)
  3. The n'ibu Njirimara nke niile prestressed ígwè strands eji na oru ngo na-agbaso usoro nke "Steel Strands for Prestressed Concrete" (GB/T5224-2014) na EN10138-3: 2009, ha mgbochi corrosion Njirimara izute chọrọ nke ASTM. A882/A882M-02a na ISO 14655:1999. Nkwụsị ike ọgwụgwụ nke eriri USB kwesịrị iru oke oke nke nrụgide σmax = 0.45fptk, njupụta nrụgide nke 200MPa, na ọnụego nbibi waya nke ≤2% mgbe 2 nde okirikiri gachara.

Ngwaahịa bara uru

• A na-ejikarị eriri 1.Prestressed (PC) eme ihe n'ịrụpụta ihe nkedo iji nye ike ike na nkwado.
  2.A na-ejikarị eriri ndị a na-ebuwanye ibu ma ọ bụ na-agbanye n'ime ihe ahụ iji mee ka ikike ibu ibu ma belata nkwụsị.
  3.The ojiji nke PC strands na-enyere aka melite n'ozuzu structural arụmọrụ na anwụ ngwa ngwa nke ihe ibé. A na-ejikarị eriri kọmpụta prestressed (PC) eme ihe n'ịrụ ihe ọkụ iji nye ike ike na nkwado.