4Nasser K W, Acavalos A, Daniel H R. Behavior and design of large openings in reinforced concrete beams [J]. ACI Structural Journal, 1967,64( 1 ) :25-33.
5Mausur M A, Lee Y F, Tan K H, et al. Tests on RC continuous beams with openings [ J ]. the Journal of Structural Engineering, 1991,117(6) : 1593-1606.
6Mansur M A, Tan K H, Lee S L. Study of concrete beams with web openings [ R ]. Singapore : Department of Civil Engineering, National University of Singapore, 1993.
7Tan K H, Mausur M A. Design procedure for reinforced concrete beams with large web openings [ J ]. American Concrete Institute Structural Journal, 1996, 93 ( 4 ) : 404-411.
6Mansur M A, Lee Y F, Lee S L. Tests On RC Continuous BeamsWith Openings[J]. Journal of Structural Engineering, 1991,117 (6): 1953--1606.
7Lorenstren M. Holes in Reinforced Concrete Girders[J]. Byggmastren (Stockholm), 1962, 41(7): 13.
8Nasser K W, Aeavalos A, Daniel H R. Behavior and Design of Large Openings in Reinforced Concrete Beams[J]. ACI Journal, 1967, 64(1).. 25 -33.
9Douglas T R, Gambrell S C. Design of Beams with Off--centerWeb Openings[J]. Journal of the Structural Division, ASCE, 1974, 100(6): 1189--1203.
10Barney G B, Corley W G, Hanson J M, et al. Behavior and Design of Prestressed (Sancrete Beams with Large Web Openings[J]. Prestressed Concrete Institute Journal, 1977, 22(6) .. 32--61.
