rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Cracking in reinforced concrete bent caps
  name:
    name part: Young, Bradley S.
    name part: 1975-
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 2000
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    form: remote
    extent: xii, 228 leaves : illustrations ; 28 cm.
  abstract: The objective of this research program was to determine the causes of cracking in the cantilever portion of multi-column reinforced concrete bent caps that exist within the Texas Department of Transportation bridge inventory. This was achieved by studying the relationship between stresses in the longitudinal tension reinforcement, reinforcement detailing, shear resistance, and cracking of the bent cap during service loading through to failure. As a part of this investigation, sixteen full-scale bent cap specimens were constructed and tested under quasi-static monotonic loading. A number of variables were isolated throughout the study including flexural stress levels, reinforcement arrangement, the design critical section, shear resistance and serviceability factors. Strain levels in the main longitudinal reinforcement were monitored, and crack widths were measured and recorded throughout testing. As a result of this investigation, design recommendations were proposed in an effort to mitigate cracking in order to improve durability and reduce maintenance costs of bent caps throughout the lifetime of the structure. Excessive cracking in RC bent caps can be controlled through improved design detailing for both flexure and shear. For flexure, designing for demands at the column centerline provides overstrength at the column face. This overstrength at the column face can reduce the effective reinforcement stresses during service conditions and reduce cracking. Enhanced shear strength should also be provided within the bent cap negative moment regions. Shear reinforcement should be specified such that proper ductility of the bent cap is assured. Specifically, the nominal shear strength should exceed the factored shear loading as well as the required shear to develop flexural overstrength in the bent cap, using f[] = 1.25f[]. In addition, adequate side face reinforcement in the web flexural tension zone can help reduce cracking at serviceability load levels. Attention to t…
  note: by Bradley S. Young.
  note: "Major subject: Civil Engineering".
  note: Vita.
  note: Also available online.
  note: Issued also on microfiche from Lange Micrographics.
  note: M.S. Texas A&M University 2000.
  note: Includes bibliographical references (leaves 96-98).
  subject:
    topic: Major civil engineering
  identifier: https://hdl.handle.net/1969.1/ETD-TAMU-2000-THESIS-Y53
  related item:
    location:
      url: https://hdl.handle.net/1969.1/ETD-TAMU-2000-THESIS-Y53
  record info:
    record content source: TXA
    record creation date: 010425
    record change date: 20220103134556.0
    record identifier: in00001610405