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

IF 1.4 4区工程技术 Q3 ENGINEERING, CIVIL

Earthquakes and Structures Pub Date : 2021-01-01 DOI:10.12989/EAS.2021.20.1.029

J. Vanlalruata, C. Marthong

引用次数: 0

Abstract

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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混凝土梁柱节点在柱内不同位置时的性能

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。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Earthquakes and Structures ENGINEERING, CIVIL-ENGINEERING, GEOLOGICAL

CiteScore

2.90

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Earthquakes and Structures, An International Journal, focuses on the effects of earthquakes on civil engineering structures. The journal will serve as a powerful repository of technical information and will provide a highimpact publication platform for the global community of researchers in the traditional, as well as emerging, subdisciplines of the broader earthquake engineering field. Specifically, some of the major topics covered by the Journal include: .. characterization of strong ground motions, .. quantification of earthquake demand and structural capacity, .. design of earthquake resistant structures and foundations, .. experimental and computational methods, .. seismic regulations and building codes, .. seismic hazard assessment, .. seismic risk mitigation, .. site effects and soil-structure interaction, .. assessment, repair and strengthening of existing structures, including historic structures and monuments, and .. emerging technologies including passive control technologies, structural monitoring systems, and cyberinfrastructure tools for seismic data management, experimental applications, early warning and response