Evaluation of factors influencing the earthquake-resistant design of reinforced concrete frames according to Eurocode 8

2015 ◽  
Vol 12 (10) ◽  
pp. 1323-1341 ◽  
Author(s):  
Jure Žižmond ◽  
Matjaž Dolšek
Keyword(s):  
Reinforced Concrete ◽  
Eurocode 8 ◽  
Concrete Frames ◽  
Reinforced Concrete Frames ◽  
Factors Influencing ◽  
Earthquake Resistant Design ◽  
Earthquake Resistant

scholarly journals An application of capacity design philosophy to gravity load dominated ductile reinforced concrete frames

1978 ◽  
Vol 11 (1) ◽  
pp. 50-61 ◽  
Author(s):  
T. Paulay
Keyword(s):  
Reinforced Concrete ◽  
Lateral Loading ◽  
Capacity Design ◽  
Concrete Frames ◽  
Reinforced Concrete Frames ◽  
Design Philosophy ◽  
Axial Forces ◽  
Earthquake Resistant Design ◽  
Gravity Load ◽  
High Level

Indiscriminate application of the capacity design philosophy can lead to unnecessary or indeed absurd conservatism in the earthquake resistant design of gravity load dominated ductile reinforced concrete frames. Low-rise framed buildings are typical examples. The origin of excessive potential strength with respect to lateral loading is discussed and proposals are made to establish an acceptable upper bound for lateral load carrying capacity in such frames. A technique is presented by which the successive formation of potential plastic hinges, involving partial beam sway mechanisms, can be conveniently assured. While retaining the requirements for energy dissipation in beams, it is postulated that at an acceptable high level of lateral loading the formation of storey mechanisms, necessary to complete the frame sway mechanism, should be tolerable. Examples are given to illustrate the determination of design quantities for bending moments, shear and axial forces for both, beams and columns.

scholarly journals Moment redistribution in continuous beams of earthquake resistant multistorey reinforced concrete frames

1976 ◽  
Vol 9 (4) ◽  
pp. 205-212 ◽  
Author(s):  
T. Paulay
Keyword(s):  
Reinforced Concrete ◽  
Steel Structures ◽  
Load Resistance ◽  
Elastic Response ◽  
Concrete Frames ◽  
Reinforced Concrete Frames ◽  
Moment Redistribution ◽  
Earthquake Resistant ◽  
Lateral Load Resistance ◽  
Efficient Distribution

To allow a more uniform and efficient distribution of load resistance in reinforced concrete frames that may be subjected to seismic excitation well beyond the range of elastic response, the concepts of moment redistribution, well known from the plastic design of steel structures,
 are re-examined. The aims of moment redistribution, with particular reference to earthquake loading, are stated and relevant terms are defined. To allow advantageous but statically admissible adjustments of moments, derived from an elastic analysis, to be made, the requirements of equilibrium and lateral load resistance are assembled into a set of simple rules. Certain limits for redistribution, which appear to be reasonable
 in the light of existing provisions for structural ductility, and yet are not too restrictive, are proposed. A technique, involving simple graphic manipulations well suited for design office use, is suggested and with the aid of an example its application is shown in detail.

EXPERIMENTAL LIFE STUDIES OF REINFORCED CONCRETE FRAMES WITH GIRDERS REINFORCED BY INDIRECT REINFORCEMENT

2020 ◽  
Vol 87 (1) ◽  
pp. 92-100 ◽  
Author(s):  
N.V. FEDOROVA ◽  
◽  
FAN DINH GUOK ◽  
NGUYEN THI CHANG ◽  
◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Concrete Frames ◽  
Reinforced Concrete Frames

scholarly journals Investigation of Diagonal Strut Actions in Masonry-Infilled Reinforced Concrete Frames

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Seung-Jae Lee ◽  
Tae-Sung Eom ◽  
Eunjong Yu
Keyword(s):  
Reinforced Concrete ◽  
Failure Mode ◽  
Yield Criterion ◽  
Friction Angle ◽  
Concrete Frames ◽  
Element Analysis ◽  
Reinforced Concrete Frames ◽  
Infilled Frames ◽  
Masonry Infills ◽  
Push Down

AbstractThis study analytically investigated the behavior of reinforced concrete frames with masonry infills. For the analysis, VecTor2, a nonlinear finite element analysis program that implements the Modified Compression Field Theory and Disturbed Stress Field Model, was used. To account for the slip behavior at the mortar joints in the masonry element, the hyperbolic Mohr–Coulomb yield criterion, defined as a function of cohesion and friction angle, was used. The analysis results showed that the lateral resistance and failure mode of the infilled frames were significantly affected by the thickness of the masonry infill, cohesion on the mortar joint–brick interface, and poor mortar filling (or gap) on the masonry boundary under the beam. Diagonal strut actions developed along two or three load paths on the mortar infill, including the backstay actions near the tension column and push-down actions near the compression columns. Such backstay and push-down actions increased the axial and shear forces of columns, and ultimately affect the strength, ductility, and failure mode of the infilled frames.

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