Page 21 - Advanced Design Examples of Seismic Retrofit of Structures

Chapter 2

Example of a Two-Story

Unreinforced Masonry Building

Retrofitted by Shotcrete ☆

†
Arash Mardani*, Morteza Raissi Dehkordi , Abdoreza S. Moghadam ‡
and Mohammad Yekrangnia §
* †
Bureau of Technical and Supervision, DRES, Tehran, Iran, Iran University of Science and
‡
Technology, Tehran, Iran, International Institute of Earthquake Engineering and Seismology
§
(IIEES), Tehran, Iran, Department of Civil Engineering, Shahid Rajaee Teacher Training
University, Tehran, Iran
Aims
By reading this chapter, you are introduced to:

l URM buildings’ characteristics and failure modes;
l evaluation of URM buildings by linear static procedure (LSP);
l the effects of horizontal ties on vulnerability of URM buildings;
l the effects of diaphragm rigidity on vulnerability of URM buildings; and
l design procedure of shotcrete.

2.1 INTRODUCTION
In this chapter, the building under study is a two-story unreinforced masonry
(URM) school building located in Tehran, Iran. The plans and sanctions of
the example two-story URM school building are shown in Figs. 2.1 and 2.2,
respectively. A view of the example two-story URM school building is pre-
sented in Fig. 2.3.
The main reason for selecting a school building over a typical residential
building is that unsafe existing buildings expose school administrators to the
following risks [1]:

☆ This chapter is part of a research project sponsored by the Organization for Development, Ren-
ovation and Equipping Schools of IR. Iran (DRES). The majority of the details and photos presented
in this chapter belong to DRES. The authors of this chapter appreciate the financial and technical
support of DRES.

Advanced Design Examples of Seismic Retrofit of Structures. https://doi.org/10.1016/B978-0-08-102534-5.00002-7
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