EK524
In catering for movement of a structure, one of three methods can be adopted: Design the structure to withstand all the forces developed by restraint of movement. This is possible […]
EK468
Strategies available for limiting damage arising from accidental actions are: Enhancement of continuity. This strategy consists of the provision of increases in the resistance of the joints of structural members […]
EK466
Expansion or isolation joints are used to help prevent cracking due to the thermal dimension changes in concrete. They usually are placed where there are abrupt changes in thickness, offsets, […]
EK328
In a continuously reinforced concrete slab on ground that is without joints except for construction and expansion or isolation joints where needed, the percentage of distributed reinforcing steel is 0,6 […]
EK322
Control (contraction) joints permit slabs shrink without excessive cracking between joints.
EK199
Shear keys for the transfer of shear forces between elements are obtained by cast in-situ concrete or grout in joints between the elements with surface castellations. Under the action of […]
EK191
Cementatious materials such as in-situ mortar, fine concrete or grouting are often used in the joints between load bearing elements. The nominal thickness is about 10 to 30 mm for […]
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 […]
EK181
In general, the horizontal forces are transferred between precast units by a combination of shear friction, aggregate interlocking, dowel action and mechanical welding. To resist these forces, it is necessary […]
EK174
The central concepts of limit state design are as follows: All the separate conditions that make the structure unfit for use are taken into account. These are the separate limit […]
EK170
Due to the great differences in the stiffnesses of joints using different type of connectors, it is usual not to allow the joint force to be shared between slip and […]
EK169
Equal sharing of the force transfer is also often assumed for tension force joints in which the applied force acts out of the connection plane. This is the case for […]
EK167
Welded force joints do not slip, but behave as if almost rigid.
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 […]