Building Structure JGJ A X

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1 Building Structure Vol. 45 No. 12 Jun * JGJ JGJ DB23 /T TU TU A X Review of studies on shear resisting mechanisms and calculating formulas of shear resisting capacity of horizontal joints in fabricated reinforced concrete shear wall structures Zhao Zuozhou 1 Zhou Jian 1 Hou Jianqun 2 Ren Baoshuang 2 1 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry Tsinghua University Beijing China 2 Architectural Design and Research Institute of Tsinghua University Co. Ltd. Beijing China Abstract Different detailing methods and concrete interfaces of horizontal joints in fabricated reinforced concrete shear wall structures have been summarized and researches on shear resisting mechanisms and the available calculating formulas of shear resisting capacity have been reviewed. Typical formulas have been compared by a design example and analysis of shear resisting test results of concrete surface. The comparisons have revealed that the available formulas are mainly based on shear-friction theory and derived from the experiment results of the shear joint interface between the existing and the new concrete. The shear resisting capacities of the composite interface predicted based on the formulas are conservative. However the shear resisting capacity of the horizontal joints with shear keys might be overestimated in some cases. The shear resisting capacity of the composite interface can be predicted by the formula in Technical specification for precast concrete structures JGJ the shear resisting capacity of joints with shear keys can be calculated by Technical specification for precast concrete structures JGJ or Technical specification for concrete shear wall structure assembled with precast components DB23 /T It has been proposed that a systematic study on shear behavior of horizontal joints of the existing fabricated reinforced concrete shear wall structures and considering combined force condition material property limit of axial compression force and total shear resisting capacity should be carried out to get a reliable and friendly usable formula. Keywords fabricated shear wall horizontal joint shear friction shear resisting capacity 0 1 Becker J M * AA THZ02-1 zzzhao@ tsinghua. edu. cn

2 Smith B J 11 JGJ JGJ Maga a R A DB34 /T Soudki K A a ~ c Kurama Y C

3 d e Tsoukantas S G % ~ 90% Rizkalla S H 32 Soudki K A 33 Crisafulli F J Mattock A H Laible J P 25 4 Walraven J C

4 Crisafulli F J Foerster H R 42 Mattock A H V u = 2. 4 槡 f g 'A ck σ n A c A 32 ck A c σ n f g ' μ 33 A c Mattock A H 39 V n μ f 34 ω 0 Mattock A H 40 V u = μσ n A c + A b f y / 槡 3 μ 42 A b Walraven J C 41 65% V u GB DB11 / DB23 /T Rizkalla S H 32 Soudki K A 33 2 V u = μ σ n A c + A s f s 0. 6 ~ 0. 8 σ n A s f s = μ f 1 + ξ ω 0 T y + N ξ ω 0 T y sinκ ξ T y 1 /2 N κ 0. 7 σ n A c f y

5 N V u = 0. 24ξ n k A k + n j A j f jv A s f y N N V u = 0. 24ξ n k A k + n j A j f jv A s f y N /γ RE ξ n k n j A k A j A s f y N f jv γ RE V u = 0. 6f y A s N /γ RE N V u = φv n = φa vf f y μ V u = β K 1 A c f y A s + N K 2 f c A c K 3 A c φ V n 0. 2f c ' A c A c f c 0. 8f c ' A c 1. 03A c A vf f y 400MPa A s A c f c ' β K 1 K 2 K 3 f y V u = 0. 6f y A s N V u N V u = λφ c c + μσ A c 0. 25φ c f c 'A c V u = 0. 25ξ c n c A c f t A s f y N /γ RE σ = f y A s + N /A c f y ξ c n c A c f c ' f t c = 0. 25MPa μ = 0. 6 c = 0. 5MPa μ = 1. 0 φ c = λ = V u = φv n = φ A vf f y + N μ V n 0. 2 f c 'A c 8A c f y 500MPa N m 3 78m 3 200mm200mm 6 Building code requirements for structural concrete and commentary ACI Design of concrete structures CSA A Concrete structures standard part 1 the design of concrete structures NZS MPa μ V u = 0. 6 f y A s + f v A n N V u = cf ctd A c + μn + μa s f yd 0. 5νf cd A c f v A c = n N μ = 0. 7 c = 0. 5 μ = f c bh 0 N = 0. 6f c bh 0 b h 0 c = μ = 0. 6 f cd f ctd f yd N 0. 6f cd A c ν N f ck /250 = 0. 25ξ c n c A c f t A s f y N 0. 6 Eurocode 2 design of concrete structures-part 1-1 BS EN JGJ

6 V u calc V u test

7 D D J J J BECKER J M LLORENTE C MUELLER P. Seismic 5 response of precast concrete walls J. Earthquake Engineering & Structural Dynamics MAGANA R A SCHULTZ A E. Design and behavior of 1 connections in precast concrete shear walls C / / Proceedings of the Eleventh World Conference on Earthquake Engineering. Acapulco Mexico SOUDKI K A RIZKALLA S H LEBLANC B. Horizontal connections for precast concrete shear walls 2 subjected to cyclic deformations part 1 mild steel connections J. PCI Journal SOUDKI K A RIZKALLA S H DAIKIW R W. Horizontal connections for precast concrete shear walls subjected to cyclic deformations part 2 prestressed connections J. PCI Journal KURAMA Y C. Seismic design of partially post-tensioned precast concrete walls J. PCI Journal SMITH B J KURAMA Y C MCGINNIS M J. Comparison of hybrid and emulative precast concrete 4 shear walls for seismic regions C / / Proceedings of the ASCE Structures Congress. Las Vegas NV USA 2011.

8 JGJ 1 91 S. connections between reinforced concrete linear precast elements J. ACI Structural Journal D RIZKALLA S H SERRETTE R L HEUVEL J S et al. 14. Multiple shear key connections for precast shear wall J panels J. PCI Journal SOUDKI K A WEST J S RIZKALLA S H et al. J. Horizontal connections for precast concrete shear wall panels under cyclic shear loading J. PCI Journal J CRISAFULLI F J RESTREPO J I PARK R. Seismic design of lightly reinforced precast concrete rectangular 17 JGJ S. wall panels J. PCI Journal R J D J J DB34 /T MATTOCK A H JOHAL L CHOW H C. Shear transfer in S reinforced concrete with moment or tension acting across the 21 HOFBECK J A IBRAHIM I O MATTOCK A H. Shear shear plane J. PCI Journal transfer in reinforced concrete J. ACI Journal MATTOCK A H. Shear friction and high-strength concrete BIRKELAND P W BIRKELAND H W. Connections in precast concrete construction J. ACI Journal MAST R F. Auxiliary reinforcement in concrete connections J. Journal of the Structural Division MATTOCK A H. Shear transfer in concrete having reinforcement at an angle to the shear plane G / /ACI SP-42 Shear in Reinforced Concrete. Detroit American Concrete Institute LAIBLE J P WHITE R N GERGELY P. Experimental investigation of seismic shear transfer across cracks in concrete nuclear containment vessels G / /ACI SP-53 Reinforced Concrete Structures in Seismic Zones. Detroit American Concrete Institute WALRAVEN J C. Fundamental analysis of aggregate interlock J. Journal of the Structural Division J GB S. 28. J S DB11/ S. J ABDUL-WAHAB H M S SARSAM S Y H. Prediction of ultimate shear strength of vertical joints in large panel structures J. ACI Structural Journal TSOUKANTAS S G TASSIOS T P. Shear resistance of J. ACI Structural Journal MATTOCK A H LI W K WANG T C. Shear transfer in lightweight reinforced concrete J. PCI Journal WALRAVEN J C FRENAY J PRUIJSSERS A. Influence of concrete strength and load history on the shear friction capacity of concrete members J. PCI Journal FOERSTER H R RIZKALLA S H HEUVEL J S. Behavior and design of shear connections for loadbearing wall panels J. PCI Journal J J J. 49 DB23 /T S

9 MIDAS 2 10% 250mm 7. 5% MIDAS 1. J J WONG H T TENG J G. Experimental on a model steel 65kN base shell of the Comshell roof system C / /The Third International Conference on Advances in Steel Structures kN Hongkong kN 4 HYUK CHUN N. Ultimate strength of large scale reinforced concrete thin shell structures J. Thin-Walled Structures MIDAS. J M M ACI Building code requirements for structural concrete and commentary S. Farmington Hills American Concrete Institute BS EN Eurocode 2 design of concrete structures-part 1-1 S. Brussels European Committee for Standardization CSA A Design of concrete structures S. Mississauga Canadian Standards Association NZS Concrete structures standard part 1 the design of concrete structures S. Wellington Standards New Zealand J. 54 JGJ S GB S. 55 BASS R A CARRASQUILLO R L JIRSA J O. Shear transfer across new and existing concrete interfaces J. ACI Structural Journal CHAKRABARTI S C NAYAK G C PAUL D K. Shear characteristics of cast-in-place vertical joints in story-high precast wall assembly J. ACI Structural Journal requirements for masonry structures S. The Masonry M GB S GB S GB S M GB S JGJ S J TMS /ACI /ASCE 5-13 Building code Standards Joint Committee MSJC 2013.

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