Civil Engineering Association

Procedure to Perform Pushover Analysis (for RC Structures with SAP2000)

This is Section 6.3 of book entitled: Seismic design aids for nonlinear analysis of reinforced concrete structures written by Srinivasan Chandrasekaran, Luciano Nunziante, Giorgio Serino, Federico Carannante. This is very useful info in conducting pushover analysis of RC structures using SAP2000. It shoul be noted, after the procedures explained in this chapter, we just need 2 more steps for nonlinear time history analysis using SAP2000, i.e. specifying the input ground motion and time history definition in load case.

In this section, a detailed procedure to perform nonlinear static pushover analysis is presented. A five bay–ten story regular frame in reinforced concrete is considered as an example case. The building frame consists of structural elements as follows:
(1) 450 mm square RC columns, reinforced with 12Φ25 and lateral ties of 8 mm at 200 c/c; (2) 300 × 450 mm RC beam, reinforced with 4Φ22 as tensile and compression steel with shear stirrups of 10 mm at 250 c/c; and (3) 125-mm-thick RC slab. The concrete mix is M25 and the reinforcing steel used is high-yield-strength deformed bars, Fe 415. The building frame consists of 4 m bay width and 4 m story height, with no structural and geometric irregularities and assumed to be located in Zone V (IS 1893, 2002) with soil condition as “medium” type. Using the proposed expressions for P-M interaction and moment-rotation, presented in Chapters 1 and 2, respectively, beams and columns are modeled. Figure 6.7 shows the P-M interaction details for the beam hinges to be used in the model. The P-M interaction domains are traced using the summary of expressions given in Chapter 1. Figure 6.8 shows the moment rotation for the beam hinges, which are plotted using the expressions given in Chapter 3. Similarly, P-M interaction details and moment-rotation for column hinges are shown in Figures 6.9 and 6.10, respectively. The building frame is modeled in SAP2000, version 10.1.2 advanced, using the geometric and structural details as mentioned above. In the following section, a step-by-step approach for performing pushover analysis of the building model is presented.

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The link for full version of this book can be found in the following pezhmankhan's thread:

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Made By CivilEA Post-Generator ver 2.1

dead link, can you upload, please?

Full book is here

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