Una struttura è costituita da una trave con sezione a I e da due travi reticolari tubolari. The structure contains several imperfections and it is loaded by the force Fz. Il peso proprio è trascurato in questo esempio. Determine the deflections uy and uz and axial rotation φx at the endpoint (Point 4). L'esempio di verifica si basa sull'esempio introdotto da Gensichen e Lumpe.
Questo esempio di verifica si basa sull'esempio di verifica 0122. A single-mass system without damping is subjected to an axial loading force. An ideal elastic-plastic material with characteristics is assumed. Determine the time course of the end-point deflection, velocity, and acceleration.
L'esempio di verifica descrive i carichi del vento in diverse direzioni del vento su un modello di un gruppo di edifici. The model consists of eight cubes. The velocity fields obtained by the RWIND simulation are compared with the measured values from the experiment. The experimental data are measured using a thermistor anemometer in the wind tunnel.
Una trave in acciaio con una sezione trasversale quadrata è caricata con una forza assiale e un carico distribuito. The image shows the calculation of the maximum bending deflection and critical load factor according to the second-order analysis.
Uno sbalzo di sezione trasversale rettangolare ha una massa alla fine. Furthermore, it is loaded by an axial force. Calculate the natural frequency of the structure. Neglect the self‑weight of the cantilever and consider the influence of the axial force for the stiffness modification.
Determina le inflessioni massime del blocco considerando o trascurando l'effetto di taglio. The square block of the isotropic material is fully fixed at one end and loaded with uniform vertical pressure.
L'obiettivo di questo esempio è quello di dimostrare un processo irreversibile causato dall'attrito. After the loading and unloading, the end-point is in a different position than where it was at the beginning. Determine the movement of the node in the X direction.
Dimostra che l'accoppiamento di diversi elementi dimensionali non influisce sui risultati. A cantilever with a rectangular cross-section is fixed at one end and loaded at the other by concentrated forces. Neglecting its self-weight and assuming only small deformations, determine the cantilever's maximum deflections.
Quattro colonne sono fissate nella parte inferiore e collegate da un blocco rigido nella parte superiore. The block is loaded by pressure and modeled by an elastic material with a high modulus of elasticity. The outer columns are modeled by linear elastic material and the inner columns by a stress-strain diagram with decaying dependence. Assuming only the small deformation theory and neglecting the structure's self-weight, determine its maximum deflection.
A structure is made of two trusses of unequal length, which are embedded into the hinge supports. The structure is loaded by concentrated force. Il peso proprio è trascurato. Determine the relationship between the loading force and the deflection, considering large deformations.
Una struttura costituita da un profilo a I è incorporata nei supporti delle forche. The axial rotation is restricted on both ends while warping is enabled. The structure is loaded by two transverse forces in the middle. The verification example is based on the example introduced by Gensichen and Lumpe.
Un'asta con una sezione trasversale quadrata è fissata all'estremità superiore. The rod is loaded by self-weight. For comparison, the example is also modeled with the concentrated force load, the value of which is equal to the gravity. The aim of this verification example is to show the difference between these types of loading, although the total loading force is equal.
A cantilever beam with an I-beam cross-section of length L is defined. The beam has five mass points with masses m acting in the X-direction. Il peso proprio è trascurato. The frequencies, mode shapes, and equivalent loads of this 5-DOF system are analytically calculated and compared with the results from RSTAB and RFEM.
Considera una trave ASTM A992 W 18×50 per campata e carichi permanenti e permanenti uniformi come mostrato nella Figura 1. The member is limited to a maximum nominal depth of 18 inches. The live load deflection is limited to L/360. The beam is simply supported and continuously braced. Verify the available flexural strength of the selected beam, based on LRFD and ASD.
Determina l'inflessione massima di quattro colonne fissate nella parte inferiore e collegate da un blocco rigido nella parte superiore. The block is loaded by pressure and modeled by an elastic material with a high modulus of elasticity. The outer columns are modeled as orthotropic elastic material, and the inner columns as orthotropic elastic-plastic material with the same elastic parameters as the outer columns and plasticity properties defined according to the Tsai-Wu plasticity theory.
Determina il momento flettente che, agendo all'estremità libera dello sbalzo, piegherà l'asta in una forma circolare. Neglecting the beam's self-weight, assuming the large deformation analysis, and loading the cantilever with the moment, determine its maximum deflections.
Un blocco tridimensionale in materiale elastico-plastico con indurimento è fissato su entrambe le estremità. The block's middle plane is subjected to a pressure load. The surface plasticity is described according to the Tsai‑Wu plasticity theory.
Das Architectural Institute of Japan (AIJ) ha una revisione del benchmark Benchmark-Szenarien für Windsimulation vorgestellt. Der Nachfolgende Beitrag dreht sich dabei um den "Caso A - grattacielo con forma 2:1:1". Im Folgenden wird das beschriebene Szenario in RWIND2 nachgebildet und die Ergebnisse mit den simulierten und der experimentellen Resultate des AIJ verglichen.
Una trave di legno rinforzata da due piastre di acciaio alle estremità è caricata da pressione. The wood fibers are parallel to the upper loaded side of the beam. The plastic surface is described according to the Tsai-Wu plasticity theory.
Questo esempio è una modifica dell'esempio di verifica 0061; l'unica differenza è che il materiale della nave è incomprimibile. An open‑ended, thick‑walled vessel is loaded by both inner and outer pressure. While neglecting self‑weight, the radial deflection of the inner and the outer radius is determined.
Una struttura è composta da quattro aste reticolari, che sono incastonate nei vincoli esterni delle cerniere. The structure is loaded by a concentrated force and alternatively by imposed nodal deformation over the critical limit point, when snap-through occurs. Imposed nodal deformation is used in RFEM 5 and RSTAB 8 to obtain the full equilibrium path of the snap-through. The self-weight is neglected in this example. Determine the relationship between the actual loading force and the deflection, considering large deformation analysis. Evaluate the load factor at given deflections.
Un blocco tridimensionale in materiale elastico-plastico è fissato ad entrambe le estremità. The block's middle plane is subjected to a pressure load. The surface plasticity is described according to the Tsai-Wu plasticity theory.
Una struttura poco profonda simmetrica è composta da otto aste reticolari uguali, che sono incorporate nei supporti delle cerniere. The structure is loaded by a concentrated force and alternatively by imposed nodal deformation over the critical limit point when the snap-through occurs. Imposed nodal deformation is used in RFEM 5 and RSTAB 8 to obtain the full equilibrium path of the snap-through. The self-weight is neglected in this example. Determine the relationship between the actual loading force and the deflection, considering large deformation analysis. Evaluate the load factor at the given deflections.
Una trave di legno rinforzata da due piastre di acciaio alle estremità è caricata da pressione. The wood fibers are parallel to the upper loaded side of the beam. The plastic surface is described according to the Tsai-Wu plasticity theory.
Una striscia bimetallica è composta da invar e rame. The left end of the bimetallic strip is fixed, and the right end is free, loaded by temperature difference. While neglecting self-weight, determine the deflection of the bimetallic strip (free end).
Una trave in acciaio caricata assialmente con una sezione trasversale quadrata è bloccata a un'estremità e supportata da una molla all'altra. Two cases with different spring stiffnesses are considered. The verification example solves the calculation of the load factors of the beam in the image using the linear stability analysis.
A structure is made of two trusses, which are embedded into the hinge supports. The structure is loaded by concentrated force. Il peso proprio è trascurato. Determine the relationship between the loading force and the deflection, considering large deformations.
Una piastra rettangolare semplicemente supportata è soggetta a diversi tipi di carico. Assuming only the small deformation theory and neglecting self-weight, determine the deflection at its centroid for each load type.
Questo esempio serve come dimostrazione del vincolo del diaframma. The application is shown on a two-story structure. The structure is loaded by means of lateral forces according to Figure 1. Determine the maximum deflection of the structure ux in the direction of the loading forces using both the diaphragm constraint and the plate model of the floor.