Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing

Namyo Salim Lim; Anh Tuan Pham; Kang Hai Tan

Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing

Namyo Salim Lim^*, Anh Tuan Pham, Kang Hai Tan

^*Corresponding author for this work

Nanyang Technological University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Under the scenario of single column removal in progressive collapse analysis, frame structure may rely on development of secondary/ alternate load path mechanisms, i.e. compressive arch action (CAA) and Catenary action (CA) in double-span beams to safely redistribute the accidental load to the adjacent structure. A number of analytical and numerical methods have been proposed to quantify the behaviour/ load carrying capacity of double-span beam with development of secondary mechanisms. The proposed methods are only applicable for or validated against symmetrical double-span beams. However, in the design and construction of RC buildings, it is quite common to have variations in details of beams adjacent to one another leading to unsymmetrical double-span beam upon column removal. Hence, analytical and numerical methods for predicting load-carrying capacity of unsymmetrical double-span beams are proposed and validated against the result of 3 tests, i.e. 1 double-span beam with unsymmetrical span length, 1 double-span beam with unsymmetrical beam details, and 1 double-span beam with unsymmetrical beam details and span length.

Original language	English
Title of host publication	Proceedings of the fib Symposium 2019
Subtitle of host publication	Concrete - Innovations in Materials, Design and Structures
Editors	Wit Derkowski, Piotr Krajewski, Piotr Gwozdziewicz, Marek Pantak, Lukasz Hojdys
Publisher	International Federation for Structural Concrete
Pages	746-757
Number of pages	12
ISBN (Electronic)	9782940643004
Publication status	Published - 2019
Externally published	Yes
Event	fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures - Krakow, Poland Duration: May 27 2019 → May 29 2019

Publication series

Name	Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures

Conference

Conference	fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures
Country/Territory	Poland
City	Krakow
Period	5/27/19 → 5/29/19

Bibliographical note

Publisher Copyright:
© Federation Internationale du Beton (fib) - International Federation for Structural Concrete, 2019.

ASJC Scopus Subject Areas

Building and Construction
Architecture
Civil and Structural Engineering

Keywords

Detailing
Experimental
Progressive collapse
Span-length
Unsymmetrical double-span beams

Cite this

Lim, N. S., Pham, A. T., & Tan, K. H. (2019). Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing. In W. Derkowski, P. Krajewski, P. Gwozdziewicz, M. Pantak, & L. Hojdys (Eds.), Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures (pp. 746-757). (Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures). International Federation for Structural Concrete.

Lim, Namyo Salim ; Pham, Anh Tuan ; Tan, Kang Hai. / Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing. Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. editor / Wit Derkowski ; Piotr Krajewski ; Piotr Gwozdziewicz ; Marek Pantak ; Lukasz Hojdys. International Federation for Structural Concrete, 2019. pp. 746-757 (Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures).

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title = "Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing",

abstract = "Under the scenario of single column removal in progressive collapse analysis, frame structure may rely on development of secondary/ alternate load path mechanisms, i.e. compressive arch action (CAA) and Catenary action (CA) in double-span beams to safely redistribute the accidental load to the adjacent structure. A number of analytical and numerical methods have been proposed to quantify the behaviour/ load carrying capacity of double-span beam with development of secondary mechanisms. The proposed methods are only applicable for or validated against symmetrical double-span beams. However, in the design and construction of RC buildings, it is quite common to have variations in details of beams adjacent to one another leading to unsymmetrical double-span beam upon column removal. Hence, analytical and numerical methods for predicting load-carrying capacity of unsymmetrical double-span beams are proposed and validated against the result of 3 tests, i.e. 1 double-span beam with unsymmetrical span length, 1 double-span beam with unsymmetrical beam details, and 1 double-span beam with unsymmetrical beam details and span length.",

keywords = "Detailing, Experimental, Progressive collapse, Span-length, Unsymmetrical double-span beams",

author = "Lim, {Namyo Salim} and Pham, {Anh Tuan} and Tan, {Kang Hai}",

note = "Publisher Copyright: {\textcopyright} Federation Internationale du Beton (fib) - International Federation for Structural Concrete, 2019.; fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures ; Conference date: 27-05-2019 Through 29-05-2019",

year = "2019",

language = "English",

series = "Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures",

publisher = "International Federation for Structural Concrete",

pages = "746--757",

editor = "Wit Derkowski and Piotr Krajewski and Piotr Gwozdziewicz and Marek Pantak and Lukasz Hojdys",

booktitle = "Proceedings of the fib Symposium 2019",

}

Lim, NS, Pham, AT & Tan, KH 2019, Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing. in W Derkowski, P Krajewski, P Gwozdziewicz, M Pantak & L Hojdys (eds), Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures, International Federation for Structural Concrete, pp. 746-757, fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures, Krakow, Poland, 5/27/19.

Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing. / Lim, Namyo Salim; Pham, Anh Tuan; Tan, Kang Hai.
Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. ed. / Wit Derkowski; Piotr Krajewski; Piotr Gwozdziewicz; Marek Pantak; Lukasz Hojdys. International Federation for Structural Concrete, 2019. p. 746-757 (Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing

AU - Lim, Namyo Salim

AU - Pham, Anh Tuan

AU - Tan, Kang Hai

N1 - Publisher Copyright: © Federation Internationale du Beton (fib) - International Federation for Structural Concrete, 2019.

PY - 2019

Y1 - 2019

N2 - Under the scenario of single column removal in progressive collapse analysis, frame structure may rely on development of secondary/ alternate load path mechanisms, i.e. compressive arch action (CAA) and Catenary action (CA) in double-span beams to safely redistribute the accidental load to the adjacent structure. A number of analytical and numerical methods have been proposed to quantify the behaviour/ load carrying capacity of double-span beam with development of secondary mechanisms. The proposed methods are only applicable for or validated against symmetrical double-span beams. However, in the design and construction of RC buildings, it is quite common to have variations in details of beams adjacent to one another leading to unsymmetrical double-span beam upon column removal. Hence, analytical and numerical methods for predicting load-carrying capacity of unsymmetrical double-span beams are proposed and validated against the result of 3 tests, i.e. 1 double-span beam with unsymmetrical span length, 1 double-span beam with unsymmetrical beam details, and 1 double-span beam with unsymmetrical beam details and span length.

AB - Under the scenario of single column removal in progressive collapse analysis, frame structure may rely on development of secondary/ alternate load path mechanisms, i.e. compressive arch action (CAA) and Catenary action (CA) in double-span beams to safely redistribute the accidental load to the adjacent structure. A number of analytical and numerical methods have been proposed to quantify the behaviour/ load carrying capacity of double-span beam with development of secondary mechanisms. The proposed methods are only applicable for or validated against symmetrical double-span beams. However, in the design and construction of RC buildings, it is quite common to have variations in details of beams adjacent to one another leading to unsymmetrical double-span beam upon column removal. Hence, analytical and numerical methods for predicting load-carrying capacity of unsymmetrical double-span beams are proposed and validated against the result of 3 tests, i.e. 1 double-span beam with unsymmetrical span length, 1 double-span beam with unsymmetrical beam details, and 1 double-span beam with unsymmetrical beam details and span length.

KW - Detailing

KW - Experimental

KW - Progressive collapse

KW - Span-length

KW - Unsymmetrical double-span beams

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M3 - Conference contribution

AN - SCOPUS:85066106992

T3 - Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures

SP - 746

EP - 757

BT - Proceedings of the fib Symposium 2019

A2 - Derkowski, Wit

A2 - Krajewski, Piotr

A2 - Gwozdziewicz, Piotr

A2 - Pantak, Marek

A2 - Hojdys, Lukasz

PB - International Federation for Structural Concrete

T2 - fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures

Y2 - 27 May 2019 through 29 May 2019

ER -

Lim NS, Pham AT, Tan KH. Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing. In Derkowski W, Krajewski P, Gwozdziewicz P, Pantak M, Hojdys L, editors, Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. International Federation for Structural Concrete. 2019. p. 746-757. (Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures).

Analytical and numerical predictions of double-span beams load resistance with unsymmetrical span length and reinforcement detailing

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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Cite this