Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Plastic Hinge Method: Analysis and Design

Description

This lecture covers the plastic hinge method for estimating inelastic deformation capacity in structures subjected to earthquakes. It explains the plastic hinge analysis, moment-curvature relationship, and the estimation of yield and ultimate displacements. The shortcomings of force-based design are discussed, focusing on the challenges related to estimating the fundamental period of buildings and the distribution of forces in hyperstatic systems.

Official source

Ontological neighbourhood

Chemical engineering

Materials science: Deformation of materials

Civil engineering

Structural engineering: Topics in structural engineering

Related concepts (32)

Earthquake engineering

Earthquake engineering is an interdisciplinary branch of engineering that designs and analyzes structures, such as buildings and bridges, with earthquakes in mind. Its overall goal is to make such structures more resistant to earthquakes. An earthquake (or seismic) engineer aims to construct structures that will not be damaged in minor shaking and will avoid serious damage or collapse in a major earthquake. A properly engineered structure does not necessarily have to be extremely strong or expensive.

Seismic retrofit

Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. With better understanding of seismic demand on structures and with our recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged. Prior to the introduction of modern seismic codes in the late 1960s for developed countries (US, Japan etc.) and late 1970s for many other parts of the world (Turkey, China etc.

Seismic hazard

A seismic hazard is the probability that an earthquake will occur in a given geographic area, within a given window of time, and with ground motion intensity exceeding a given threshold. With a hazard thus estimated, risk can be assessed and included in such areas as building codes for standard buildings, designing larger buildings and infrastructure projects, land use planning and determining insurance rates.

Seismic analysis

Seismic analysis is a subset of structural analysis and is the calculation of the response of a building (or nonbuilding) structure to earthquakes. It is part of the process of structural design, earthquake engineering or structural assessment and retrofit (see structural engineering) in regions where earthquakes are prevalent. As seen in the figure, a building has the potential to 'wave' back and forth during an earthquake (or even a severe wind storm). This is called the 'fundamental mode', and is the lowest frequency of building response.

Seismic base isolation

Seismic base isolation, also known as base isolation, or base isolation system, is one of the most popular means of protecting a structure against earthquake forces. It is a collection of structural elements which should substantially decouple a superstructure from its substructure that is in turn resting on the shaking ground, thus protecting a building or non-building structure's integrity. Base isolation is one of the most powerful tools of earthquake engineering pertaining to the passive structural vibration control technologies.

Related lectures (49)

Failure Mechanisms of RC Walls: Ductile vs. Brittle

Explores the ductile and brittle failure modes of RC walls under seismic loads.

Local and Global Ductility

Examines the relationship between different ductilities in seismic engineering, highlighting their significance in structural elements.

Capacity Design of RC Walls

Covers the capacity design of reinforced concrete walls in 10 steps, emphasizing overstrength and ductility.

Seismic design: Conventional vs. Capacity design

Explores seismic design principles, including conventional and capacity design of structures, failure modes, and plastic mechanisms.

Inelastic SDOF: Response and Design