EK703
In determining the location when a bar is no longer required, force in bars should be calculated taking into account the bending moment and the effect of truss model for […]
EK675
The bending mechanism is decisive for dowel action. The mechanism of shear is subordinate and kinking only occurs after very large interface displacements and is therefore neglectable for common building […]
EK673
The activation of dowel action in the reinforcement bar occurs due to relative horizontal displacement of old and new concrete layer. For dowel action, it can be distinguished between the […]
EK595
Intermediate transverse stiffeners must be proportioned so as to satisfy two conditions: 1) They must be sufficiently stiff not to deform appreciably as the web tends to buckle.2) They must […]
EK534
If confinement is provided, usually by the use of stirrups and/or a large concrete cover, bond failure occurs by shear failure of the concrete keys between the steel ribs.
EK520
Dilatancy is the increase in volume that may occur during shear.
EK462
Retaining walls backfilled with cohesionless soils (sand and gravel) tend to rotate slightly around the base. Behind such a wall, a wedge of soil tends to shear along inclined plane. […]
EK388
The reason for the high shear (which is the slope of the bending moment diagram) in the external columns of rigid frames is illustrated, where the bending moment diagram for […]
EK387
Where rigid beam-to-column connections are used, some kind of column stiffening is normally required. Horizontal stiffeners are used where the column web is overstressed by the concentrated load from the […]
EK372
The behaviour of a girder under an increasing shear load may be divided into the three phases: Unbuckled. The situation prior to buckling when equal tensile and compressive principal stresses […]
EK293
If the inclined crack starts at the top of an existing flexural crack and propagates into the beam, the crack is referred to as flexural shear crack.
EK241
The concrete specimen under axial compression may fail in combination of shear and splitting.
EK239
The concrete specimen under axial compression may fail in shear. Resistance to failure is due to both cohesion and internal friction.
EK198
Shear transfer by shear friction requires the presence of a permanent normal compressive force. The force may arise from permanent gravity loads, by prestressing or artificially induced by reinforcement bars […]
EK197
Shear transfer by bond between precast and in-situ elements is possible when the shear stress is low.
EK185
When the precast unit is designed with the entire load acting directly on it, the vertical shear in the joints need not be considered as there will be zero shear […]
EK175
A strength gain is possible with plates in shear where tension field action is considered. Thin unstiffened plates cannot carry much load after buckling. The critical buckling stress is increased […]
EK166
Shear and bearing joints using close tolerance bolts in fitted holes behave in a similar manner to connections with clearance holes, except that the bolt slips are greatly reduced. Slip […]
EK165
When shear and bearing bolts in clearance holes are used in an in-plane force joint, there is an initial slip when the shear is first applied to the joint as […]
EK122
The calculated amounts of torsional reinforcement must be provided in addition to the full bending and shear reinforcement requirements for the ultimate load combination corresponding to the torsional moment considered.
EK117
The distortion strain energy theory or strain energy theory states that yielding occurs when the shear strain energy reaches the shear strain energy in simple tension.
EK108
The lateral deflection of a story-high rigid frame due to beam and column rotations may be considered analogous to the shear defections of a story-high segment of a shear wall.
EK107
The total lateral deflection of a rigid frame may be considered a combination of the following: Cantilever deflection due to axial deformation of columns (15% – 20%). Frame shear racking […]
EK105
The magnitude of the axial force in wall piers is given by the sum of the shear forces occurring in the coupling beams above the level under consideration.
EK99
The longitudinal tension bars contribute to the shear resistance by their dowelling action and they also help to prevent shear cracks from commencing at small tension cracks. To be effective, […]
EK98
The action of a reinforced concrete beam in shear is represented by analogous truss in which the longitudinal reinforcement forms the bottom chord, the stirrups are the vertical members and […]
EK93
Assumptions of the Bernoulli-Euler theory of bending: The beam is bent by pure terminal couples so that shear and axial forces are not present. The deformations are small, so that […]
EK86
Figure represents the distribution of principal stresses across the span of a homogeneous concrete beam. The direction of the principal compressive stresses takes the form of an arch while the […]
EK39
The shear center is defined as the point on the cross-section of a beam through which the resultant of the transverse loads must pass so that the stresses in the […]