Nos apoios da forquilha está integrada uma estrutura constituída por um perfil em I. 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.
Uma treliça plana constituída por quatro barras inclinadas e uma barra vertical é carregada no nó superior através de uma força vertical e uma força fora do plano. Assuming the large deformation analysis and neglecting the self-weight, determine the normal forces of the members and the out-of-plane displacement of the upper node.
Uma barra de tração em forma de W de acordo com a ASTM A992 é selecionada para suportar sob tração uma carga permanente de 30 000 kips (13,6 t) e uma carga variável de 90 000 kips (40,8 t). Verify the member strength using both LRFD and ASD.
Considere o vão da barra ASTM A992 W 18×50 apresentado na Figura 01 e as cargas permanentes e variáveis uniformes. 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.
A closely coiled helical spring is loaded by a compression force. The spring has middle diameter D, wire diameter d, and it consists of i turns. O comprimento total da mola é L. Determine the total deflection of the spring for the member model and one‑turn deflection for the solid model.
A truss structure consists of three rods (one steel and two copper) joined by a rigid member. The structure is loaded by a concentrated force and a temperature difference. Determine a flecha total da estrutura, sem considerar o peso próprio.
Uma barra ligeiramente inclinada é carregada com força concentrada, fixada por uma mola numa extremidade e apoiada na outra extremidade. Assuming large deformations and neglecting the member's self-weight, determine its maximum upward deflection.
A structure made of an I-profile is fully fixed on the left end and embedded into the sliding support on the right end. A estrutura é constituída por dois segmentos. The self-weight is neglected in this example. Determine the maximum deflection of the structure, the bending moment on the fixed end, the rotation of segment 2, and the reaction force at point B by means of the geometrically linear analysis and the second-order analysis. The verification example is based on the example introduced by Gensichen and Lumpe.
A viga em consola de parede fina feita de um perfil QRO está completamente fixada na extremidade esquerda e o empenamento é possibilitado. The cantilever is subjected to torque. Small deformations are considered, and the self-weight is neglected. Determine the maximum rotation, primary moment, secondary moment, and warping moment. The verification example is based on the example introduced by Gensichen and Lumpe.
A member with the given boundary conditions is loaded by torsional moment and axial force. Neglecting its self-weight, determine the beam's maximum torsional deformation as well as its inner torsional moment, defined as the sum of a primary torsional moment and torsional moment caused by the normal force. Compare estes valores ao mesmo tempo que aceita ou não considera a influência da força axial. The verification example is based on the example introduced by Gensichen and Lumpe.
A viga em consola com um perfil em I está apoiada na extremidade esquerda e é carregada com um binário. The aim of this example is to compare the fixed support with the fork support and to investigate the behavior of some representative quantities. Comparison is also made to the solution by means of plates. Small deformations are considered, and the self-weight is neglected. Determine the rotation in the midpoint of the cantilever, and in case of the member entity with warping, determine the values of the primary torsional moment, the secondary torsional moment, and the warping moment both on the left end (point A) and the right end (point B).