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Showing 1 to 20 of 20 for “"shear design"”.
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Shear capacity of circular concrete sections
The introduction of the Eurocodes for Concrete design will alter the way that shear design is approached for concrete structures. The Eurocodes have adopted the variable angle truss model for shear, a more theoretically consistent approach than that found in the British Standards. The model is …
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Shear Strength of Full-Scale Prestressed Lightweight Concrete Girders with Composite Decks
Although design codes have accepted lightweight concrete as a suitable structural material for nearly 50 years, there is still a good deal of uncertainty as to how to calculate the strength of this material when designing for shear in beams. Design codes tend to penalize lightweight concrete due to …
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Dimensionamento prático à força cortante de seções de concreto armado
Practical procedures for shear design of reinforced concrete members, with the aid of a programmable calculator, are hereby presented. These procedures result from simplifications on a mechanical model of a cracked reinforced concrete plate, aiming its application to the usual design of reinforced …
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Shear Behavior of Reinforced Concrete Beams and Prestressed Concrete Beams
… limits the concrete compressive strength in design of concrete structures due to a lack of experimental research data. As an effort to overcome the limitation to the use of high strength concrete (HSC) in shear design, an experimental study, Project 12-56 ""Application of the LRFD Bridge …
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Horizontal Shear Transfer Between Ultra High Performance Concrete And Lightweight Concrete
… concrete, has begun to revolutionize the bridge design industry. This extremely high strength material has given smaller composite sections the ability to carry larger loads. As the forces being transferred through composite members are increasing in magnitude, it is vital that the equations …
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Horizontal Shear Connectors for Precast Prestressed Bridge Decks
… as for new bridge construction. The horizontal shear strength at the interface between the two interconnected elements is of primary importance in order to provide composite action. The strength of the bond between the two precast members should be high enough to prevent any progressive slip …
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Resistência ao esforço cortante em vigas curtas de concreto leve, sem armadura transversal
… "directly loaded beam"), it is evident that the shear strenght of the beam is greatly affected by the ratio of shear span to effective depth, a/d. Thus, for directly loaded beams with a/d ratios smaller than 2.5 (named "short beams") the shear strenght increases sharply, due to the presence of a …
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Modelling Reinforced and Prestressed Concrete Structures Subjected to Shear and Torsion
In the design and analysis of reinforced and prestressed concrete structures, engineers are often faced with complex loading conditions that require the assessment of members subjected to shear and torsion. To develop a better understanding of the behaviour of such structures, twelve shell element …
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Structural Behaviour of Self Consolidating Steel Fiber Reinforced Concrete Beams
When subjected to a combination of moment and shear force, a reinforced concrete (RC) beam with either little or no transverse reinforcement can fail in shear before reaching its full flexural strength. This type of failure is sudden in nature and usually disastrous because it does not give …
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CFRP as Shear and End-Zone Reinforcement for Concrete Bridge Girders
… a single point load near the support to induce shear failure. Beams were fitted with instrumentation to capture shear cracking data. Shear capacity calculations following four methods were compared to test results. Lastly, a parametric study with strut-and-tie modeling was performed on Precast …
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C-Grid as Shear Reinforcement in Concrete Bridge Girders
… This thesis concludes that C-Grid is a viable shear design option and presents the initial recommendations for design methods. These methods provide a basis for the design of C-Grid shear reinforcing that could be used as a starting point for future testing of full scale specimens. This testing …
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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 …
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Characterizing the Shear Behavior of Ultra-High-Performance Concrete through the Universal Panel Tester
The limited understanding of the shear behavior of Ultra-High-Performance Concrete (UHPC), especially under the effects of axial loads and varying scales, poses challenges to the formulation of reliable design models. Although UHPC is being utilized in structural applications, its complex behavior …
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Shear strength of reinforced concrete wall-beam structures: upper- bound analysis and experiments
… presents rigid-plastic methods of analysis of shear failure in reinforced concrete (R. C.) wall-beam type structures when subjected to in-plane loading. The upper-bound approach is emphasised. Present shear design practice (e.g. BS8110:1985) relies much upon empirical solutions, but it is …
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An Investigation of the Effects of Specimen Gripping Systems on Shear Stress at the Geosynthetic/Geosynthetic Interface in Landfill Applications
… materials becomes the critical section where shear failure is likely to occur. For this reason, their shear strength behaviour is determined in the laboratory at anticipated site conditions, mainly using a direct shear device to obtain design parameters. These laboratory tests are preferably …
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Behavior of Deep Reinforced Concrete Beams under Monotonic and Reversed Cyclic Load
… which show that the current code procedures for shear design of members without web reinforcement are least accurate in the range of transition from deep to slender beams. Furthermore, the issue of cyclic response of lightly-reinforced deep beams is of great importance for seismic assessment of …
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Investigation of Single and Two Bolt Connections Perpendicular to Grain in Laminated Veneer Lumber
… the advancement of the load resistance factor design (LRFD) of connections. The results obtained from the experimental testing of this research will provide information regarding the behavior of connections at conditions of capacity and yield, and a comparison between single and two bolted …
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A Comparative Study on Shear Strength Testing of Single and Multi-layer Interfaces using Large Direct Shear Apparatus
… interface testing to determine geosynthetic shear design characteristic values that are used in the design of structures such as landfill liners. A topic of discussion remains the preferred interface testing configuration and only a few studies have substantiated and quantified the …
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The mechanics of abrasion on concrete crosstie rail seats
… (i.e. relative slip at the rail seat, normal and shear stresses, presence of abrasive fines, and moisture) are frequently encountered on primary heavy-haul corridors in North America. This thesis includes results from several laboratory experiments using test setups and protocols that were …