Please wait a minute...

Frontiers of Structural and Civil Engineering

Front Arch Civil Eng Chin    2009, Vol. 3 Issue (2) : 148-157     https://doi.org/10.1007/s11709-009-0030-5
RESEARCH ARTICLE |
Finite element analysis and structural design of pretensioned inverted T-beams with web openings
Hock Tian CHENG1(), Bashar S. MOHAMMED2, Kamal Nasharuddin MUSTAPHA2
1. Faculty of Civil and Environmental Engineering, Universiti Malaysia Pahang, Malaysia; 2. Department of Civil Engineering, College of Engineering, Universiti Tenaga Nasional, Malaysia
Download: PDF(442 KB)   HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract

This paper presents the results of a research project aimed at providing standard circular web openings to the popular precast pretensioned inverted T-beam. Opening size and placement and required materials strengths were investigated. In this paper the nonlinear analysis and design of simply supported pretensioned inverted T-beam with circular web openings are presented. Two design parameters are varied: opening location and number of openings. The results from nonlinear finite element analysis were substantiated by test results from five pretensioned inverted T-beams with web opening and one solid beam. Good agreement is shown between the theoretical and the experimental results. The test results obtained from this investigation show that the performance of the specimens with web openings is almost identical to that of the specimen without web openings. A simple design method for pretensioned inverted T-beam with circular web openings is proposed.

Keywords prestressed concrete      inverted-T beam      web opening     
Corresponding Authors: CHENG Hock Tian,Email:cheng@ump.edu.my   
Issue Date: 05 June 2009
 Cite this article:   
Hock Tian CHENG,Bashar S. MOHAMMED,Kamal Nasharuddin MUSTAPHA. Finite element analysis and structural design of pretensioned inverted T-beams with web openings[J]. Front Arch Civil Eng Chin, 2009, 3(2): 148-157.
 URL:  
http://journal.hep.com.cn/fsce/EN/10.1007/s11709-009-0030-5
http://journal.hep.com.cn/fsce/EN/Y2009/V3/I2/148
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
Hock Tian CHENG
Bashar S. MOHAMMED
Kamal Nasharuddin MUSTAPHA
Fig.1  Pretensioned beams details: (a) typical configuration of web openings inside pretensioned inverted T-beam; (b) inverted T-beam overall detailed dimensions
Fig.2  Detailing and location of prestressing steels and shear reinforcements for pretensioned inverted T-beam with three circular web openings at both shear constant areas
Fig.3  Detailing and location of prestressing steels and shear reinforcements for pretensioned inverted T-beam with nine circular web openings
Fig.4  Detailing and location of prestressing steels and shear reinforcements for pretensioned inverted T-beam with three circular web openings at moment constant areas
Fig.5  Steel and openings location. (a) Top view of typical prestressing steel and rebar locations; (b) typical openings locations
Fig.6  Side view and front view of typical prestressed inverted T-beams
Fig.7  Four-points bending test of pretensioned inverted T-beam
Fig.8  Load-deflection plot for beam with nine web openings. (a) Beam P3M; (b) load-deflection plot of P3M.
Fig.9  Load-deflection plot for beam with three web openings in constant shear area. (a) Beam P3S; (b) load-deflection plot of P3S
Fig.10  Fig. 10 Load-deflection plot for beam with three web openings in constant moment area. (a) Beam P2M; (b) load-deflection plot of P2M
Fig.11  Load-deflection plot for beam with two web openings in constant moment area. (a) Beam P2S; (b) load-deflection plot of P2S
Fig.12  Load-deflection plot for beam with 2 web openings in constant shear area. (a) Beam P9MS; (b) load-deflection plot of P9MS
Fig.13  Load-deflection plot for solid beam. (a) Beam solid; (b) load-deflection plot of beam solid
Fig.14  Flow chart of design procedure
1 Tan K H, Mansur M A. Design procedure for reinforced concrete beams with large web openings. ACI Structural Journal , 1996, 93(4): 404-411
2 Mansur M. Ultimate strength design of beam with large openings. International Journal of Structure , 1988, 8(2): 107-125
3 Ragan H S, Warwaruk J. Tee Members with large web openings. PCI Journal , 1967, 12(4): 52-65
4 Pessiki S, Prior R, Sause R, Slaughter S. Review of existing precast concrete gravity load floor framing systems. PCI Journal , 1995, 40(2): 52-68
5 Savage J M, Tadros M R, Arumugasaamy P, Fischer L G. Behavior and design of double tees with web openings. PCI Journal , 1996, 41(1): 46-62
6 Pessiki S, van Zyverden W, Sause R, Slaughter S. Proposed concepts for floor framing systems for precast/prestressed concrete office Buildings. PCI Journal , 1997, 42(5): 66-76
7 Thompson J M, Pessiki S. Experimental investigation of precast,prestressed inverted-tee girders with large web openings. PCI Journal , 2006, 51(6): 2-17
8 Dinakaran V, Sastry M K. Behavior of post-tensioned prestressed concrete T-beam with large web openings. Indian Concrete Journal , 1984, 58(2): 34-38
9 Barney G B, Corley W G, Hanson J M, Parmelee R A. Behavior and design of prestressed concrete beams with large web openings. PCI Journal , 1977, 22(6): 32-61
10 Abdalla H, Kennedy J B. Design of prestressed concrete beams with openings. Journal of Structural Engineering , 1995, 121(5): 890-898
doi: 10.1061/(ASCE)0733-9445(1995)121:5(890)
11 ACI Committee 318. Building Code Requirements for Structural Concrete (ACI 318-99) and Commentary(ACI 318R-99). Farmington Hills , MI: American Concrete Institute, 1999
Related articles from Frontiers Journals
[1] Ali Fadhil NASER, Zonglin WANG. Experimental monitoring of the strengthening construction of a segmental box girder bridge and field testing of external prestressing tendons anchorage[J]. Front Struc Civil Eng, 2012, 6(3): 308-320.
[2] Hock Tian CHENG , Bashar S. MOHAMMED , Kamal Nasharuddin MUSTAPHA , . Ultimate load analysis of pretensioned inverted T-beams with circular web openings[J]. Front. Struct. Civ. Eng., 2009, 3(3): 262-271.
[3] Yiyi CHEN, Dazhao ZHANG, Weichen XUE, Wensheng LU. Seismic performance of prestressed concrete stand structure supporting retractable steel roof[J]. Front Arch Civil Eng Chin, 2009, 3(2): 117-124.
[4] XUE Weichen, LIU Zhenyong, JIANG Dongsheng. Analysis on shear capacity of prestressed concrete spatial connections[J]. Front. Struct. Civ. Eng., 2008, 2(4): 309-317.
[5] LONG Peiheng, DU Xianting, CHEN Weizhen. Spatial embedded reinforcement of 20-node block element for analysis PC bridges[J]. Front. Struct. Civ. Eng., 2008, 2(3): 274-280.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed