Bonded brickwork walls of large thickness constructed with double or triple bricks are common in loadbearing historical masonry structures many regions which require interventions and compression capacity evaluation. However, current design provisions for prediction primarily based on single brick prisms wallette specimens. Due to anisotropic nature masonry, the strength deformation characteris...

This study examined branch diameter, number of whorls, and branches in the lower 2 m stems white spruce growing pure stands mixture with a range densities trembling aspen. Data were collected from two sites located north Big River Saskatchewan, which regenerated following clearcutting 1992 thinned 1996 to five aspen densities. Results show significant decreases diameter at breast height (DBH), ...

The mechanical behaviour and design of fixed-ended steel equal-leg angle section members subjected to axial compression are addressed in this study. First, the critical buckling is described. Experimental data on columns collected from literature then used for validation numerical (shell finite element) models, developed within commercial package ABAQUS. Validation performed by means comparison...

Abstract Free vibration of a single-walled carbon nanotube (SWCNT) embedded in an elastic medium is studied on the basis nonlocal Timoshenko beam model. Influences slenderness ratios, boundary conditions, atomic structures and stiffness natural frequencies mode shapes SWCNT are examined. The effect significant for higher modes with small ratio soft medium, it softens except fundamental frequenc...

In the present study, we show that the fastest runners and swimmers are becoming not only faster but also heavier, taller and more slender. During the past century, the world record speeds for 100 m-freestyle and 100 m-dash have increased with body mass (M) raised to the power 1/6, in accordance with the constructal scaling of animal locomotion. The world records also show that the speeds have ...

In order to study the effect of different slenderness ratio and axial compression on lateral impact resistance reinforced steel fiber concrete columns, models with continuously varying were established analyze components. The results show that proper is helpful improve anti-impact ability Under normal working conditions, columns a less than 6.5 are recommended not exceed 0.6, for greater 12, sh...

We consider a beam whose cross-section is a tubular neighborhood, with thickness scaling with a parameter δε, of a simple curve γ whose length scales with ε. To model a thin-walled beam we assume that δε goes to zero faster than ε, and we measure the rate of convergence by a slenderness parameter s which is the ratio between ε2 and δε. In this Part I of the work we focus on the case where the c...

one of the serious problems of iran’s watersheds is soil erosion and can be considered as one of the main obstacles to achieve sustainable agricultural development and natural resources. in most countries of the world, because of absence of accurate data for the sediment erosion, deposition utilizing models to estimate erosion is inevitable. in order to apply effective management in natural res...

The influence of combined loading on the response monopiles used to support offshore wind turbines (OWTs) is investigated in this paper. In current practice, resistance vertical and lateral considered separately. As OWT size has increased, slenderness ratio (pile length, L, normalised by diameter, D) decreased foundations are tending towards intermediate footings with geometries between those p...

Our project describes a simplified method that allow obtaining the fundamental period of vibration, lateral displacement, shear force and bending moment through a set of equations, obtaining for all cases studied an error below 10%.The results obtained in this study were applied to a total of 9 real chimneys (4 of steel and 5 of reinforced concrete) built in Chile, with the objective of calibra...