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The Constructor - Civil Engineering Home for Civil Engineers

The Constructor - Civil Engineering Home provides informational resources to Civil Engineers around the globe on various subjects such as construction management, Structural Engineering, Building Construction Tips, How to Guides for Civil Engineers etc.

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SHEAR CENTRE -WITH EXAMPLES

If a beam is subjected to bending moments and shear force in a plane, other than the plane of geometry, which passes through the centroid of the section, then bending moment will be accompanied by twisting. In order to avoid ...

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THEORY OF SIMPLE BENDING

Assumptions:Plane sections of the beam, originally plane, remain plane. The material of the beam is homogeneous and obeys Hooke’s law. The moduli of elasticity for tension and compression are equal. The beam is initially straight and of constant cross-section. The ...

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FLITCHED BEAMS

Beams that are built of more than one material are called composite beams. Examples are bimetallic beams, which consists of two different metals bonded together, sandwich beams, and reinforced concrete beams. Composite beams may be analysed by the same bending theory ...

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TENSILE TEST ON MILD STEEL SPECIMEN

In a tensile test of mild steel specimen, usually a round or flat bar is gradually pulled in a testing machine until it breaks. Two points, called gauge points, are marked on the central portion. The distance between these points, ...

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DETERMINATE AND INDETERMINATE STRUCTURES

Structure is an assemblage of a number of components like slabs, beams, columns, walls, foundations and so on, which remains in equilibrium. It has to satisfy the fundamental criteria of strength, stiffness, economy, durability and compatibility, for its existence. It ...

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QUICK SAND CONDITION

QUICK SAND CONDITION IN COHESIONLESS SOILS The shear strength of cohesionless soil depends upon the effective stress. The shear strength is give byWhere

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GEOTECHNICAL LABORATORY TESTS

Geotechnical laboratory tests consists of number of tests for the properties of soil. These tests are done to find out the suitability of soil for the construction projects. Geotechnical Engineering Laboratory ExperimentsDIFFERENT TYPES OF SHEAR TESTS AND DRAINAGE ...

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VANE SHEAR TEST ON SOIL

VANE SHEAR TEST ON SOIL The vane shear test apparatus consists of four stainless steel blades fixed at right angle to each other and firmly attached to a high tensile steel rod. The length of the vane is usually kept equal ...

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TRIAXIAL SHEAR STRENGTH TEST

TRIAXIAL SHEAR STRENGTH TEST ON SOIL This is the most widely used and is suitable for all types of soils. A cylindrical specimen, generally having a length to diameter ratio of 2, is used in the test and is stressed under ...

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NEGATIVE SKIN FRICTION ON PILES

NEGATIVE SKIN FRICTION ON PILES AND PILE GROUP When a fill or load is placed on compressible soil deposit, consolidation of the compressible material takes place. When the piles are driven through compressible soils before consolidation is complete or the site ...

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