Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 18 of 18 for “"Tension Stiffening"”.
-
Response of reinforced concrete to reverse cyclic loading
… program. The program indicated that monotonic tension stiffening does not decay with increasing strain. Analyses also demonstrated that the variation of slip along a reinforcing bar is approximately linear, which allowed the development of a simple transparent tension stiffening model that …
-
Moment-curvature relationships in reinforced concrete
… of this study is to investigate the effects of tension stiffening and softening of concrete in reinforced concrete beams and beam-columns. Analytical models of beams and beam-columns are prepared and the results compared to experimental results previously conducted by Berwanger et al. (1960) A …
-
Cracking of reinforced concrete structural walls subjected to cyclic loading
… crack spacing and average crack width), and tension stiffening effects. This investigation assesses the appropriateness and limitations of existing models to predict cracking and tension stiffening as needed to develop new models that can be developed using the fairly comprehensive dense data …
-
Deformation of partially prestressed concrete beams under service loads.
… in CPII0 Appendix A to take account of the "tension stiffening" effect of the concrete between cracks. This was extended to predict long-term deflection by considering the effect of creep and shrinkage in the analysis of the cracked sections. A separate section of the thesis describes a …
-
An experimental study and finite analysis of punching shear failure in steel fibre-reinforced concrete ground -suspended floor slabs
… was developed. This enables one to estimate the tension stiffening behaviour of SFRC based on a simple beam bending test and a statistical model developed in this research, this constitutive model was used later on in the modelling of the SFRC slabs using FEA. In the preliminary FEA, sufficient …
-
Punching shear capacity of flat slab-column junctions (a study by 3-D non-linear finite element analysis)
… is assumed. Smeared crack approach with simple tension stiffening and shear retention equations were employed to mimic the post-cracking behaviour of concrete. Reinforcing bars were represented by one dimensional element embedded in the solid elements and for both tension and compression, linear …
-
Numerical modelling of time-dependent cracking and deformation of reinforced concrete structures
… is accounted for indirectly by including the tension stiffening effect. The second approach is the localized cracking approach, in which concrete fracture models are used in conjunction with bond-slip interface elements to model stress transfer between concrete and steel. Creep of concrete has …
-
Inelastic Dynamic Behavior And Design Of Hybrid Coupled Wall Systems
… nonlinear behavior including concrete cracking, tension stiffening, and compressive behavior for both confined and unconfined concrete as well as steel yielding. The developed finite element models are calibrated using more detailed models developed in previous research and are validated through …
-
Three-dimensional non-linear finite element analysis of reinforced concrete beams in torsion. Reinforced concrete members under torsion and bending are analysed up to failure. A non-linear concrete model for general states of stress including compressive strength degradation due to cracking is described.
… is terminated at the onset the . crushing. In tension, a smeared crack model with fixed orthogonal cracks has been used with the inclusion of models for the retained post-cracking stress and the reduced shear modulus. The non-linear equations of equilibrium have been solved using an …
-
The mathematical modelling of concrete constitutive relationships
… steel bar and concrete has been introduced by a tension-stiffening factor and suitable formulations has been proposed. The results from the crack related models have also been compared with experimental data from the literature. Finally, stiffness matrices for cracked plain and reinforced …
-
Seismic Evaluation of Reinforced Concrete Columns and Collapse of Buildings
… of the concrete due to confinement, concrete tension stiffening and tension softening, and concrete compression softening effects. The comparison of predicted responses with experimental data indicates that proposed model is a suitable displacement-based evaluation approach that can be …
-
Time dependent flexural analysis of reinforced concrete members
… the major mechanisms influencing cracking and tension stiffening in reinforced concrete beams. Current shrinkage test methodology is having some limitations that are all surfaces are exposed to the environment and they are small scaled which leads to a uniformity of shrinkage strain and which …
-
Modelling of reinforced concrete slab deflections at service loading
… and ignoring the effect of the concrete in tension. Two of the Codes reviewed make an attempt at including the stiffening effect of the concrete in tension. The theory in the CEB/FIP Model Code is used as a basis for the method that is developed to predict maximum deflections. This method …
-
Design and Performance of Reinforced Concrete Elements with Spatial Tailoring of Concrete Properties
… to utilise uncracked regions between cracks for tension stiffening. However, a crushing capacity dictated by the weak concrete top layer requires deeper sections to ensure ductile failure. The greatest embodied carbon reduction potential is found for sections which position a concrete layer …
-
Analysis and Design of Fiber Reinforced Polymer Retrofit of Reinforced Concrete Diaphragms
… shear resistance: directly, by bridging diagonal tension cracks, and indirectly, by improving the concrete constitutive behavior through enhanced tension-stiffening of diagonal compression struts, thus delaying concrete crushing and significantly increasing overall shear capacity. The numerical …
-
Comportamento strutturale di elementi in calcestruzzo armato soggetti a corrosione
… tenendo conto che lungo il tratto unbonded la tensione nell’armatura metallica rimane costante, la deformazione del calcestruzzo in zona compressa presenta lungo l’elemento un gradiente maggiore e quindi tende a raggiungere il proprio limite di deformazioni più facilmente rendendo la rottura …
-
Zur physikalisch nichtlinearen Analyse von Verbund-Stabtragwerken unter quasi-statischer Langzeitbeanspruchung
… constraint processes, is shown. An essential extension of the composite beam structure model is obtained using the system of differential equations for the flexible bond. Several detailed models are linked to a time dependent simulation for the entire system, which has been incorporated into a …