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An investigation on the seismic behavior of deep reinforced concrete coupling beams
Lim E.a, Hwang S.-J.b, Wang T.-W.c, Chang Y.-H.b
a Institut Teknologi Bandung, Indonesia
b National Taiwan University, Taiwan
c CECI Engineering Consultants, Inc., Taiwan
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2016, American Concrete Institute. All rights reserved.The ACI 318-14 design procedure for a diagonally reinforced coupling beam is questioned because it proportions the amount of diagonal reinforcement to meet shear demands by completely neglecting the participation of concrete and failing to recognize any flexural strength that may be developed. This ACI 318-14 design procedure might introduce unnecessary additional forces to the entire coupled wall system. This study proposes that the amount of diagonal reinforcement should be determined using beam flexural theory to satisfy the design moment at the Design Based Earthquake level. Test results of diagonally reinforced deep coupling beam specimens showed that they can preserve ductile flexural behavior up to the Maximum Considered Earthquake level, and part of the shear strength was contributed from concrete in addition to diagonal bars. Finally, a strut-and-tie model to illustrate the involved mechanism is also proposed.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Coupled wall systems,Coupling beam,Design procedure,Flexural behavior,Maximum considered earthquakes,Reinforced concrete coupling,Seismic behavior,Strut-and-tie model[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Design procedure,Diagonally reinforced deep coupling beam,Seismic behavior,Shear strength[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.14359/51687939[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]