Detail publikace

Longitudinal Shear Analysis of Composite Slabs with Prepressed Embossments

HOLOMEK, J. BAJER, M. VILD, M.

Originální název

Longitudinal Shear Analysis of Composite Slabs with Prepressed Embossments

Anglický název

Longitudinal Shear Analysis of Composite Slabs with Prepressed Embossments

Jazyk

en

Originální abstrakt

Composite slabs with prepressed embossments present an effective solution for horizontal load bearing structures. Sheeting serves as a formwork in construction stage and as a tension bearing member after hardening of concrete. There is no need for additional tensile reinforcement in case of sufficient longitudinal shear bearing capacity of the embossments. Longitudinal shear bearing capacity is not precisely determined when designing according to nowadays standards. Full scale bending tests of the slabs are used to determine characteristics for m – k method or partial connection method. Bending tests are expensive and space demanding. Alternatively small-scale shear tests can be used to determine shear characteristics of the sheeting. However, shear tests cannot include all the effects affecting the bearing capacity of bended slab, such as effect of curvature or distribution of load. Therefore, related design method has to be used to determine load bearing capacity of the slab in bending. This paper extends achievements presented by the authors in contribution in CRRB 2013. The results of small-scale tests are compared with results of numerical models of the slab in shear. Numerical models are created in two different finite element codes. Setting of steel-concrete interface properties in the models is validated using data from literature.

Anglický abstrakt

Composite slabs with prepressed embossments present an effective solution for horizontal load bearing structures. Sheeting serves as a formwork in construction stage and as a tension bearing member after hardening of concrete. There is no need for additional tensile reinforcement in case of sufficient longitudinal shear bearing capacity of the embossments. Longitudinal shear bearing capacity is not precisely determined when designing according to nowadays standards. Full scale bending tests of the slabs are used to determine characteristics for m – k method or partial connection method. Bending tests are expensive and space demanding. Alternatively small-scale shear tests can be used to determine shear characteristics of the sheeting. However, shear tests cannot include all the effects affecting the bearing capacity of bended slab, such as effect of curvature or distribution of load. Therefore, related design method has to be used to determine load bearing capacity of the slab in bending. This paper extends achievements presented by the authors in contribution in CRRB 2013. The results of small-scale tests are compared with results of numerical models of the slab in shear. Numerical models are created in two different finite element codes. Setting of steel-concrete interface properties in the models is validated using data from literature.

Dokumenty

BibTex


@article{BUT111883,
  author="Josef {Holomek} and Miroslav {Bajer} and Martin {Vild}",
  title="Longitudinal Shear Analysis of Composite Slabs with Prepressed Embossments",
  annote="Composite  slabs  with  prepressed  embossments  present  an  effective  solution  for horizontal  load  bearing  structures.  Sheeting  serves  as  a  formwork  in  construction  stage  and  as  a 
tension  bearing  member  after  hardening  of  concrete.  There  is  no  need  for  additional  tensile reinforcement  in  case  of  sufficient  longitudinal  shear  bearing  capacity  of  the  embossments. Longitudinal  shear  bearing  capacity  is  not  precisely  determined  when  designing  according  to nowadays  standards.  Full  scale  bending  tests  of  the  slabs  are  used  to  determine  characteristics  for m – k  method  or  partial  connection  method.    Bending  tests  are  expensive  and  space  demanding. Alternatively small-scale shear tests can be used to determine shear characteristics of the sheeting. However,  shear  tests  cannot  include  all  the  effects  affecting  the  bearing  capacity  of  bended  slab, such as effect of curvature or distribution of load. Therefore, related design method has to be used to determine load bearing capacity of the slab in bending. This paper extends achievements presented by  the  authors  in  contribution  in  CRRB  2013.  The  results  of  small-scale  tests  are  compared  with results of numerical models of the slab in shear. Numerical models are created in two different finite element  codes.  Setting  of  steel-concrete  interface  properties  in  the  models  is  validated  using  data from literature.",
  chapter="111883",
  doi="10.4028/www.scientific.net/AMR.1122.265",
  howpublished="print",
  number="1122",
  volume="2015",
  year="2015",
  month="march",
  pages="265--268",
  type="journal article - other"
}