Detail publikačního výsledku

Box girder bridge deflections

KŘÍSTEK, V.; ZICH, M.; BAŽANT, Z.; KOHOUTKOVÁ, A.

Originální název

Box girder bridge deflections

Anglický název

Box girder bridge deflections

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Long-span prestressed concrete box girders typically exhibit deceptively small deflections, possibly even upwards. However, after about 3 to 10 years, deflections may begin to increase rapidly. To predict deflections correctly, a creep and shrinkage model that realistically describes the moisture diffusion process must be used to calculate the delay of shrinkage and drying creep of the thick bottom slab. The effects of this delay are discussed, and comparisons are made to measured deflections of actual structures.

Anglický abstrakt

Long-span prestressed concrete box girders typically exhibit deceptively small deflections, possibly even upwards. However, after about 3 to 10 years, deflections may begin to increase rapidly. To predict deflections correctly, a creep and shrinkage model that realistically describes the moisture diffusion process must be used to calculate the delay of shrinkage and drying creep of the thick bottom slab. The effects of this delay are discussed, and comparisons are made to measured deflections of actual structures.

Klíčová slova

box girder bridges; creep; drying; humidity effects; long-term deflections; prestressed concrete; serviceability; shrinkage.

Klíčová slova v angličtině

box girder bridges; creep; drying; humidity effects; long-term deflections; prestressed concrete; serviceability; shrinkage.

Autoři

KŘÍSTEK, V.; ZICH, M.; BAŽANT, Z.; KOHOUTKOVÁ, A.

Vydáno

28.01.2006

Nakladatel

ACI Concrete Intenatiaonal

Místo

US

ISSN

0162-4075

Periodikum

Concrete International Jour

Svazek

28

Číslo

01

Stát

Spojené státy americké

Strany od

55

Strany do

63

Strany počet

9

BibTex

@article{BUT46718,
  author="Vladimír {Křístek} and Miloš {Zich} and Zdeněk P. {Bažant} and Alena {Kohoutková}",
  title="Box girder bridge deflections",
  journal="Concrete International Jour",
  year="2006",
  volume="28",
  number="01",
  pages="55--63",
  issn="0162-4075"
}