Comparative Study of Design Forces of Cast-In-Place Reinforced Concrete Diaphragms in Different Standards

سال انتشار: 1402
محل انتشار: پانزدهمین کنفرانس ملی بتن و بیست و یکمین همایش روز بتن، بزرگداشت استاد احمد حامی
کد COI اختصاصی: NCCICI15_030
زبان مقاله: انگلیسی
تعداد مشاهده: 179

نویسندگان

Master’s Student of Earthquake Engineering, Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran

Mohammad Amir Najafgholipour

Faculty of Civil and Environmental Engineering, Shiraz University of Technology, Shiraz, Iran

Arsalan Niroomandi

PHD Structural Engineering, Department of Civil and Natural Resources, University of Canterbury, Christchurch, New Zealand

چکیده

Diaphragms are horizontal elements of the lateral force-resisting systems in structures. In addition to resisting the gravity loads, reinforced concrete diaphragms play a vital role in transmitting seismic loads to vertical force-resisting elements such as columns, shear walls or braces. It is necessary to design the diaphragms in such a way to avoid any disturbances in the load path. Various approaches with different procedures are provided in standards and codes for calculating diaphragm design forces. One of these differences is the effect of the type of diaphragm on determining the design force. For example, in the alternative method provided in the American loading code force reduction coefficients according to the diaphragm type are suggested, while in the general method of the same code and in the method provided in the New Zealand seismic loading standard for all diaphragms consider only one force calculation method. In this article, the methods for calculating the design force of cast-in-place reinforced concrete diaphragms in the loading standard of the United States and New Zealand as the advanced standards in seismic design of structures are introduced and compared.

کلیدواژه ها

Alternative Method, Loading code of the United States, General Method, New Zealand Seismic Loading Standards, Cast-In-Place Reinforced Concrete Diaphragms

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