美国混凝土协会期刊
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作者:Chang Hoon Lee , Kenneth C. Hover
来源:[J].Materials Journal, 2016, Vol.113 (2)
摘要:Maturity methods are used to predict strength or other mechanical properties of a concrete mixture for a given moisture availability as a function of time and temperature. Temperature sensitivity of a mixture is characterized by datum temperature for the Nurse-Saul (NS) method, a...
作者:Aless , ra L. Carvalho , Guilherme S. Melo ...
来源:[J].Structural Journal, 2016, Vol.113 (2)
摘要:The experimental punching capacities results of 27 punching tests on 160 to 200 mm (6.30 to 7.87 in.) deep post-tensioned slabs—all but three of them containing stud-rail shear reinforcement—are compared with resistances calculated by the methods of ACI 318 and Eurocode 2. T...
作者:Lihe Zhang , Dudley Morgan , Sidney Mindess
来源:[J].Materials Journal, 2016, Vol.113 (3)
摘要:The question is sometimes asked: “How does the durability of shotcrete compare to that of cast-in-place concrete?” The durability of shotcrete and concrete structures is strongly influenced by their transport properties. While considerable data are available regarding the tr...
作者:F. S. Barbosa , M. C. R. Farage , A.-L. Beaucour ...
来源:[J].Materials Journal, 2016, Vol.113 (1)
摘要:This work proposes a methodology to evaluate the elastic modulus of lightweight-aggregate concretes. To this end, an analytical formula is achieved by curve-fitting experimental results from 135 concrete samples made of 45 different mixtures. The validation of the proposed method...
作者:Michael P. Collins , Liping Xie , Boyan I. Mihaylov ...
来源:[J].Structural Journal, 2016, Vol.113 (3)
摘要:While different design codes provide similar guidance for the flexural design of prestressed thin-webbed continuous girders, the shear design provisions differ greatly. This paper investigates these discrepancies with the help of 11 experiments and a number of analytical studies....
作者:Marc Maguire , William N. Collins , Kedar R. Halbe ...
来源:[J].Structural Journal, 2016, Vol.113 (2)
摘要:Many researchers have proposed empirical methods to predict the strand stress increase at ultimate, relying heavily on simple span test data with little consideration for continuous members. The research team fabricated four two-span representative slab specimens. Tendon stresses...
作者:Cristy Guenther Helmick , Saadet Toker-Beeson , Jennifer Eisenhauer Tanner
来源:[J].Concrete International, 2016, Vol.38 (1)
摘要:Experimental and analytical work was conducted to investigate the Iosipescu test as a means of measuring tensile capacity of various concrete mixtures. The study compared results from flexural and splitting tensile strength tests against data obtained using the Iosipescu beam tes...
作者:Yail J. Kim , Abdul R. Namrou
来源:[J].Structural Journal, 2016, Vol.113 (1)
摘要:This paper presents the interfacial response of near-surfacemounted (NSM) carbon fiber-reinforced polymer (CFRP) strips embedded along a concrete substrate at elevated temperatures. Two types of bonding agents are used: ordinary and high-temperature epoxies. The residual beh...
作者:Eva O. L. Lantsoght
来源:[J].Structural Journal, 2016, Vol.113 (1)
摘要:Disc. 112-S18/From the March-April 2015 ACI Structural Journal, p. 199 Wide Beam Shear Behavior with Diverse Types of Reinforcement. Paper by S. E. Mohammadyan-Yasouj, A. K. Marsono, R. Abdullah, and M. Moghadasi

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