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 20 of 22 for “"Punching shear"”.
-
Punching shear in pad foundations on rock
… the design of these foundations is found to be punching shear. The physical properties of sound rock under load suggest that a pad foundation on rock will exhibit a different behaviour than that predicted by codes. This dissertation is meant to encourage and lead the way to further research in …
-
Characterization of Punching Shear Capacity of Thin Uhpc Plates
… and contained no reinforcing steel to resist shear. The lack of steel reinforcement allowed for the possibility of a punching shear failure to occur from the application of a point load such as a wheel tire patch load. The model and optimized section served as the foundation for this research, …
-
Tilt-up concrete panels : an investigation of flexural stresses and punching shear during lifting
… to service loads. Concentrations of high shear stress and the associated punching shear in the vicinity of the pick points could result in pullout. For these reasons, it is particularly important to design the concrete and steel reinforcement to handle the flexural and shear stresses …
-
An investigation into the punching shear failure in R.C. waffle slabs subjected to concentrated load
… when subjected to concentrated loads. The punching shear failure inside waffle slabs has not been thoroughly investigated and this is also reflected in the current code of practice, which, in the main, relates the design of punching shear in waffle slabs to that in solid slabs. In this …
-
Punching shear capacity of flat slab-column junctions (a study by 3-D non-linear finite element analysis)
This thesis presents a study of punching shear capacity of flat slab-column junctions. A three dimensional non-linear finite element program based on 20 node isoparametric solid element was used for the investigation. The non-linear 3-D elastic isotropic model proposed by Motsovos was used to …
-
An experimental study and finite analysis of punching shear failure in steel fibre-reinforced concrete ground -suspended floor slabs
… effect of using steel fibre-reinforcement on the punching shear behaviour of ground-suspended slabs with internal columns. The main objectives of this research were to develop a constitutive model for steel fibre-reinforcement (SFRC), to study experimentally the punching shear behaviour of SFRC …
-
Column Footings Strengthened with External Prestressing and External Wrapping Systems
… systems, especially on their improvements in the punching shear capacity. 353 models were built in ABAQUS. For each system, a unique group of parameters were considered and investigated. As an active system, CEP significantly improved the punching shear capacity of RC footings, and the number of …
-
Experimental and Theoretical Investigations of a New Flat Slab System Incorporating GFRP Stay-In-Place Structural Forms and Embedded I-Beams
… and used in a comprehensive parametric study. Punching shear behaviour of the slab was investigated using four full-scale interior slab-column specimens, 2000x2000x200 mm, tested under axial compression applied to the column. The study assessed the contributions of different components of the …
-
Behavior of Reinforced Concrete Panels Subject to Impact by Non-deformable Projectiles
… greater than 1.5 time the panel thickness formed punching shear crater, while panels reinforced with less than that limit distributed the damage over a wider area without forming the punching shear crater on the back face. Orthogonal mesh reinforcement with bars spaced no wider than one-third of …
-
An analytical field and model study of M-beam bridge decks
… panels were tested and they all failed in a<br/>punching shear mode. A detailed analysis of results has shown that the ultimate capacity of bridge slabs is greatly enhanced by compressive membrane action and the failure load is virtually independent of the percentage of transverse reinforcement. …
-
Strength and Life Prediction of FRP Composite Bridge Deck
… failure under the tire patch) compared to the punching-shear mode obtained using the conventional rectangular steel plate. The local response of a cellular FRP composite deck has been analyzed using finite element simulation and results are compared with full scale laboratory experiment of …
-
Fatigue response of fabric reinforced polymeric composites
… applications. The first deck failed due to local punching shear failure after 230,000 cycles. The second deck was reinforced in the loading area with 100 oz/yd2 of fiber in the transverse direction. No damage was observed for two million cycles and there was no considerable degradation in bending …
-
Partially prestressed concrete internal square panel
… values of tendon stress at ultimate load and of punching shear were compared with those obtained by various design methods.
-
The real strength of laterally restrained reinforced concrete slabs
… of that estimated by standard flexural and shear design methods.<br/><br/>Although of the fact that the consideration of CMA in design can lead to substantially reduced quantities of flexural reinforcement, it has not been considered by many of the design codes.<br/><br/>This investigation …
-
Model-based optimization of ultra high performance concrete highway bridge girders
… for assessment of the global flexural and shear resistance of UHPC girders that is quantified in terms of admissible matrix plastic strains (normalized crack widths) at SLS and ULS. Finally, complete 3-D finite element simulations allow the study of localized 3-D stress and cracking states, …
-
Stiffness and Strength of Fiber Reinforced Polymer Composite Bridge Deck Systems
… with less damage for the tire patch; and a local punching-shear mode for the steel patch. A deck failure function method is proposed for predicting the failure of FRP decks. Using developed laminated composite theories and FEA techniques, a strength analysis procedure containing ply-level …
-
Shear resistance at normal and high temperatures of reinforced concrete members with links and central bars.
… design of reinforced concrete members against shear. This review includes a study of the background of design method for shear resistance given in the British Standard code of practice and a comparison of this method with the methods recommended by the Eurocode and the American code of practice …
Page 1 of 2