EK693
In addition precast roof, floor and stair members not containing ties should be anchored back to the parts of the structure containing the ties. The capacity of this anchorage should […]
EK689
According to EC0, all actions originating from the selfweight of the structure may be considered as coming from one source and there is no requirement to consider different factors on […]
EK687
Movement joints may also be required where there is a significant change in the type of foundation, or the height or plan form of the structure.
EK686
Movement joints should divide the structure into a number of individual sections, and should pass through the whole structure above ground level in one plane.
EK685
The core and shear walls should preferably be distributed throughout the structure and so arranged that their combined shear centre is located approximately on the line of the resultant in […]
EK666
Robustness is an ability of a structure to resist events such as fire, explosions, impact loads or the consequences of human error, without being damaged to an extent disproportionate to […]
EK650
Eurocode 8 set two distinct demands including a no-collapse requirement and a damage limitation requirement. The no-collapse requirement states that the structure must be designed in a way so that […]
EK620
A limit state: A condition beyond which the structure would become less than completely fit for its intended use.
EK604
When a system of loads is applied to an elastic body, it will deform and will show a resistance against deformation. Such a body is known as a structure.
EK578
In the limit state method, both collapse condition and serviceability condition are considered. In this method, the structure has to be designed to withstand safely all loads and deformations likely […]
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 […]
EK223
Theorems for plastic analysis: Lower bound theorem: if only the structure is in equilibrium, that is, the forces and moments, externally and internally, balance, and no bending moment exceeds the […]
EK212
Also involved in limit state design is the concept of structural integrity. Essentially this means that the structure should be tied together as a whole, but if damage occurs, it […]
EK211
A structure should be designed to be safe under all conditions of its useful life and to ensure that this is accomplished certain distinct performance requirements, called “limit states“, have […]
EK210
It is therefore accepted that 5% of the material in a structure is below the design strength, and that 5% of the applied loads are greater than the design loads. […]
EK209
It is not practical, nor is it economically possible, to design a structure that will never fail. It is always possible that the structure will contain material that is less […]
EK186
The distribution of horizontal loads between stability wall elements is generally determined by the position and stiffness of the walls in the structure.
EK179
Horizontal loads on the structure are transmitted to the vertical stabilizing cores, shear walls, structural frames or bracing, etc., by the floors and roofs which act as rigid horizontal diaphragms.
EK178
A badly designed and/or badly detailed precast building is susceptible to progressive collapse which is a chain reaction failure causing extensive damage or total collapse as a result of localized […]
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 […]
EK150
Simple joints may be defined as being those that will not develop restraining moments which adversely affect the members and the structure as a whole, in which case the structure […]
EK146
If there are a sufficient number of pin-joints to make the structure statically determinate, then each member will act independently of the others, and may be designed as an isolated […]
EK111
Shear stress distribution in a hollow tube structure:
EK110
Although the rigid frame structure has a tube-like form, its behavior is much more complex than that of a solid tube. Unlike a solid tube, it is subjected to the […]
EK96
The characteristic load is defined as the load that with a probability of 95% is not exceeded throughout the lifetime of the structure, only 5% of all occurring loads are […]
EK95
The characteristic load is that value of the load, which has an accepted probability of not being exceeded during the life span of the structure. Characteristic load is therefore that […]
EK94
There are two main assumptions for first order plastic analysis: The structure is made of ductile material that can undergo large deformations beyond the elastic limit without fracture or buckling. […]
EK50
In a static or steady-state problem without substitution of a minimum number of prescribed displacements to prevent rigid body movements of the structure, it is impossible to solve this system, […]
EK21
In general, a structure is built up from a series of elements, each of which has its own characteristics with regard to action and response. Collectively, the elements contribute to […]
EK04
The superposition is not valid in cases where the geometry of structure changes on application of load.