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Showing 1 to 19 of 19 for “"truss model"”.
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Static and dynamic stability analysis of a truss model
… the static and dynamic stability of an elastic truss model. The truss model· is subjected, separately, to static loads, dynamic step loads, and dynamic impulse loads. For each loading, the results are presented in the form of stability boundaries and displacement criteria. For the static …
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Analysis of Glubam Joint Behavior and Truss Model Updating Based on Optimization Algorithms
… and the seismic performance of glubam composite truss systems remains insufficient. Comprehensive design theories and reliable numerical modeling approaches are still lacking. Moreover, integrating artificial intelligence (AI) optimization algorithms into the seismic performance analysis of …
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Nonlinear Cyclic Truss Model for Beam-Column Joints of Non-ductile RC Frames
… means is of primary importance. Existing models used to analyze the performance of RC beam-to-column joints have either been developed for modern, well-detailed joints or are simplified so that they do not capture a broad range of phenomena. The present study is aimed to extend a modeling …
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Enhanced Nonlinear Truss Model for Capturing Combined Earthquake and Fire Effects in RC Structures
… study is to enhance a previously established modeling approach so that it can describe the performance of RC structures for both cyclic loading and changes in material behavior due to elevated temperatures. The modeling approach is based on the nonlinear truss analogy and has been extensively …
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Inelastic Analysis of Reinforced Concrete Beams Subjected to Combined Axial Force, Bending and Torsion
… static monotonically increasing load. A unified model, which is an extension of the space truss model, is developed to solve this problem for rectangular, circular and slab sections. A nonlinear beam element which is based on the results from the space truss model is used in the analysis of grid …
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Comparison of design methods for shear in reinforced concrete beams
… Code method (used in the United States) and the truss model method (used in different European Codes and in the Canadian Codes). The ACI Code method is a semi-empirical solution since it builds on fitting actual test results to the analytical mechanism method. Although it will lead to safe …
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Shear capacity of circular concrete sections
… 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 confidently applied to rectangular sections, but its applicability to irregular sections is less clear. In particular, the …
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Teamwork Exercises and Technological Problem Solving with First-Year Engineering Students: An Experimental Study
… design activities: a computer bridge task and a truss model task. The computer bridge score and the number of computer bridge design iterations, both within subjects factors (time), were recorded in pairs over four 30-minute intervals. For the last two intervals with the computer bridge, teams …
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Damage location and estimation in large space structures
… Damage incurred in a structural member is modeled as a linear reduction in that member's modulus of elasticity. The damaged structure's global stiffness matrix is expressed as the healthy global stiffness matrix minus some perturbation matrix. A vector expression of the perturbation matrix …
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Dynamics and control of a planar truss actuator
… of a 3-D (triangular cross-sectioned) active truss is presented. The linear equations of motion for one plane of the truss are derived. A model for a generic flexible beam is then appended to the planar truss model. A linear time-invariant optimal control law is found, followed by a …
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Análise não-linear de estruturas reticuladas espaciais de concreto armado
… on an approximative way, based on the spacial truss model, adopted by the C.E.B. The final part presents some examples of application of the automatic program and some comparisons with others methods of analysis and experimental investigations. Some comments about the results obtained and …
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Modelling Reinforced and Prestressed Concrete Structures Subjected to Shear and Torsion
… Compression Field Theory, that can be used to model the behaviour of reinforced and prestressed concrete structures. Shell II-S, a three-layered sectional model capable of predicting the response of shells subjected to the eight stress resultants, is presented. Based on Shell II-S, a simplified …
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Numerical Analysis of Reinforced Masonry Shear Walls Using the Nonlinear Truss Approach
… of available experimental equipment, analytical modeling is the only means to conduct systematic parametric studies for prototype RM wall systems and quantify the seismic safety offered by current design standards. A number of modeling approaches, with varying levels of complexity, have been used …
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Experimental and Analytical Investigation of Seismic Performance and Retrofit Techniques for Non-Ductile RC Structural Walls
… experimental results were compared to numerical models through the nonlinear truss analogy, which was adapted for this work to incorporate lap splice slip and overlay considerations. The experimental results were well estimated by this numerical modeling approach, achieving within 6% of the peak …
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Experimental and theoretical study of encased-plate composite structural walls
… influence their performance. The finite element model provided better understanding of wall behaviour, and the analysis results showed that walls? aspect ratio, plate thickness, axial loading and central panel?s longitudinal reinforcement were the main parameters affecting the behaviour of …
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An Analytical Study on the Behavior of Reinforced Concrete Interior Beam-Column Joints
… for this study is the need to develop robust models to test current design recommendations for 3D beam-column-slab subassemblies subjected to large drifts. The present study aims to first evaluate the flexural-shear-bond interactive behavior of two-way beam-column-slab interior connections by …
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An Approach to Using Finite Element Models to Predict Suspension Member Loads in a Formula SAE Vehicle
… loads by hand. These assumptions include modeling the suspension as pinned-pinned truss members to prevent bending, neglecting any steering angle input to the suspension, and neglecting vertical articulation of the system. This thesis presents an approach to modeling the suspension member …
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Development of Novel Computational Simulation Tools to Capture the Hysteretic Response and Failure of Reinforced Concrete Structures under Seismic Loads
… because they either rely on overly simplified models or are restricted to monotonic loading. The present study is aimed to establish analytical tools for the accurate simulation of RC structures under earthquake loads. The tools are also applicable to the simulation of reinforced masonry (RM) …