混凝土梁柱节点在柱内不同位置时的性能

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-01-01 DOI:10.12989/EAS.2021.20.1.029

J. Vanlalruata, C. Marthong

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引用次数: 0

摘要

根据ACI 224.3R-95 (ACI, 2013)，柱内的施工缝(冷缝)应设置在楼板顶部，以便柱继续到下一层以及楼板和梁的下侧。最近的一项研究表明，提供上述位置的冷接头显著降低了框架结构的抗震性能。由于多层框架结构的施工缝通常设置在楼板顶部和柱中梁的拱背处。本研究考察了梁柱节点中不同位置的施工节点的影响，如楼板顶部、梁的拱度水平、梁的拱度以下的梁的一半深度和梁的拱度以下的梁的全深度。研究表明，对于下层柱，冷节点的位置远离梁的拱背，可以提高试件的抗震能力。

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Behaviour of RC beam-column joint with varying location ofconstruction joints in the column

According to ACI 224.3R-95 (ACI, 2013), construction joints (cold joint) in the column are to be provided at the top of floor slab for column continuing to the next floor and underside of floor slab and beam. A recent study reveals that providing cold joint of the mentioned location significantly reduced the seismic performance of the frame structures. Since, the construction joints in multi-story frame structures normally provided at the top of the floor slabs and at soffit of the beam in the column. This study investigated the effect of construction joint at various location in the column of beam-column joint such as at the top of floor slab, soffit level of the beam, half the depth of beam below the soffit of the beam and at a full depth of the beam below the soffit of the beam. The study revealed that there is an improvement in seismic capacity of the specimens as the location of cold joint is placed away from the soffit of the beam for lower story column.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.