اصل و ترجمه مقاله لاتین FORMULAS AND CHARTS FOR IMPEDANCES OF SURFACE AND EMBEDDED FOUNDATIONS

FORMULAS AND CHARTS FOR IMPEDANCES OF SURFACE AND EMBEDDED FOUNDATIONS   Abstract A complete set of algebraic formulas and dimensionless charts is presented for readily computing the dynamic stiffnesses (K) and damping coefficients (C) of foundations harmonically oscillating on/in a homogeneous half‐space. All possible modes of vibration, a realistic range of Poisson's ratios, and a practically sufficient range of oscillation frequencies are considered. The foundations have a rigid basema ...

اصل و ترجمه مقاله لاتین A MACRO-ELEMENT FOR DYNAMIC SOIL-STRUCTURE INTERACTION ANALYSES OF SHALLOW FOUNDATIONS

A MACRO-ELEMENT FOR DYNAMIC SOIL-STRUCTURE INTERACTION ANALYSES OF SHALLOW FOUNDATIONS Abstract  The scope of the paper is to present some aspects of the development of a "macro-element" for dynamic soil-structure interaction analyses of shallow foundations. Initially the concept of "macro-element" is introduced and is illustrated with the aid of a very simple example originating from structural engineering. Then the link is made with the modeling of the dynamic response of shallow foundat ...

اصل و ترجمه مقاله لاتین Soil-Structure Interaction for Building Structures - Chapter 2 :Inertial Interaction

Soil-Structure Interaction for Building Structures - Chapter 2 :Inertial Interaction Inertial interaction refers to displacements and rotations at the foundation level of a structure that result from inertia-driven forces such as base shear and moment. This chapter describes inertial soil-structure interaction effects. Inertial displacements and rotations can be a significant source of flexibility and energy dissipation in the soilstructure system. Section 2.1 discusses system behavior and high ...

اصل و ترجمه مقاله لاتین Seismic active pressure distribution history behind rigid retaining walls

Seismic active pressure distribution history behind rigid retaining walls Abstract Evaluating the seismic active earth pressure on retaining walls is currently based on pseudo-static method in practices. In this method, however, it is not simple, choosing an appropriate value for earthquake coefficient, which should fully reflect the dynamic characteristics of both soil and loading is an important problem. On the other hand, by using only two extra dynamic parameters that are shear wave velocit ...

دانلود کتاب راهنمای کشاورزی بر روی بام با عنوان لاتین The Farm on the Roof

در این بخش کتاب راهنمای کشاورزی بر روی بام با عنوان لاتین The Farm on the Roof: What Brooklyn Grange Taught Us About Entrepreneurship, Community, and Grow در 165 صفحه و با  فرمت Epub برای دانلود قرار داده شده است. در ذیل صفحه مشخصات و فهرست مطالب آن آورده شده است. ...