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Civil Engineer => ห้องเรียนวิศวกรรมโยธา => ข้อความที่เริ่มโดย: USS Submarine ที่ กุมภาพันธ์ 11, 2011, 12:33:37 PM

หัวข้อ: Strut-and-Tie Method for Deep Beam Design
เริ่มหัวข้อโดย: USS Submarine ที่ กุมภาพันธ์ 11, 2011, 12:33:37 PM
Strut-and-Tie Method for Deep Beam Design

"Although the Strut-and-Tie Method (STM) has been used for several years in Europe1,2 and has been included in the Canadian Standard for the Design of Concrete Structures3 since 1984 and the AASHTO LRFD Bridge Specifications4 since 1994, it is a new concept for many structural engineers in the U.S. Procedures and recommendations for the use of STM to design reinforced concrete members were discussed in a State-of-the-Art Report from Joint ACI-ASCE Committee 445, Shear and Torsion,5 but specific code requirements were not incorporated into the ACI Building Code until the 2002 edition,6 as Appendix A. To help U.S. engineers improve their ability to use STM for analysis and design of concrete members, Joint ACI-ASCE Committee 445 and ACI Committee 318-E, Shear and Torsion, recently completed a publication that contains a variety of STM examples.7 The STM model used here for the analysis and design of a deep beam is not unique. It should be noted that the STM procedure in Appendix A of the ACI Building Code (referred to as the Code) is a strength limit-state design approach. Serviceability limit-states (for example, deflections and reinforcement distribution) defined in the main body of the Code must also be checked."

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Strut-and-Tie Method for Deep Beam Design

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