ACI 550.4 prescribes testing and evaluation requirements for mechanical connections and reinforcement at joints intended for use under the design provisions of ASCE/SEI 7 and ACI 318 for precast concrete diaphragms subject to earthquake loading.
Chapter 19 Concrete
Details and location of contraction or isolation joints specified for plain concrete. 9. ... 21.2.5.1 – Except as permitted in 21.2.5.2, reinforcement resisting earthquake-induced flexural and axial forces in frame members and in structural wall boundary elements shall comply with ASTM A 706.
Understanding the joint behaviour is essential in exercising proper judgments in the design of joints. The paper discusses about the seismic actions on various types of joints and highlights the critical parameters that affect joint performance with special reference to bond and shear transfer.
International Concrete Abstracts Portal - American Concrete …
Mar 1, 2003 · This paper describes an experimental study of beam-column joints in frames common in preseismic code/gravity-designed reinforced concrete (RC) frame buildings.
International Concrete Abstracts Portal - American Concrete …
Jan 1, 1991 · Summarizes a series of research efforts at the University of Tokyo leading to the development of earthquake-resistant design criteria for reinforced concrete interior beam-column joints. The design criteria emphasize the protection of the joint to an acceptable deformation level of a frame structure during an intense earthquake.
Experimental study of earthquake resilient precast concrete …
Recent investigation on the post-earthquake showed that the failure of beam-column joints in precast concrete (PC) structures made the structures pron…
Progressive collapse behaviour of earthquake-damaged interior …
May 1, 2024 · This study investigated progressive collapse behaviour of earthquake-damaged interior precast concrete (PC) joints with headed bars. The main objective was to quantify the impact of slight and moderate earthquake damage on their residual collapse resistance.
Seismic-Resistant Precast Concrete Structures: State of the Art
Jan 17, 2018 · Extensive research conducted since the 1980s has led to new precast concrete structural systems, designs, details, and techniques that are particularly suited for use in regions of high seismic hazard.
Post-earthquake fire resistance of self-centering concrete beam …
Apr 15, 2024 · In this paper, full-scale quasi-static cyclic test and fire tests were conducted on two self-centering concrete joints connected with bolted angles and posttensioned (PT) tendons.
Rapid post-earthquake safety assessment of low-rise reinforced concrete …
4 days ago · Many countries throughout the world have experienced large earthquakes, which cause building damage or collapse. After such earthquakes, structures must be inspected rapidly to judge whether they are safe to reoccupy. To facilitate the inspection process, the authors previously developed a rapid building safety assessment system using sparse acceleration measurements for steel framed buildings ...
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