Page 1 |
Save page Remove page | Previous | 1 of 211 | Next |
|
small (250x250 max)
medium (500x500 max)
large ( > 500x500)
Full Resolution
All (PDF)
|
This page
All
Subset |
SEISMIC RETROFITTING WITH COST EFFECTIVENESS: STEEL BRACED FRAME, STEEL
MOMENT FRAME, CONCRETE SHEAR WALL, CONCRETE MOMENT FRAME
by
Han Sang Kim
A Thesis Presented to the
FACULTY OF THE USC SCHOOL OF ARCHITECTURE
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
MASTER OF BUILDING SCIENCE
August 2012
Copyright 2012 Han Sang Kim
Object Description
| Title | Seismic retrofitting with cost effectiveness |
| Author | Kim, Han Sang |
| Author email | connect.hankim@gmail.com;hansangk@usc.edu |
| Degree | Master of Building Science |
| Document type | Thesis |
| Degree program | Building Science |
| School | School of Architecture |
| Date defended/completed | 2012-06-04 |
| Date submitted | 2012-06-04 |
| Date approved | 2012-06-05 |
| Restricted until | 2012-06-05 |
| Date published | 2012-06-05 |
| Advisor (committee chair) | Carlson, Anders |
| Advisor (committee member) |
Kargahi, Mohsen Schiler, Marc |
| Abstract | Located in the heart of Los Angeles, USC is considered an earthquake prone zone, and there is a vital imperative to ensure the safety of all students and faculties during such an event. In order to prevent casualties, buildings must be checked and assured to perform under design loads. Under the current California Building Code (CBC), engineers must design all structural members for new buildings to meet CBC 2010 standards. However, designing to simply meet the standards cannot ensure the safety of the building and its occupants as seismic loads in earthquakes cannot be predicted and can exceed building code expectations. When retro‐fitting of existing buildings (designed under earlier, less stringent codes) is considered, the CBC 2010 standards may be applied with the same caveat. ❧ This study considers structural retrofit systems for existing buildings, taking into account economic as well as structural factors. Two USC buildings, Waite Phillips Hall (WPH), a 12‐story classroom/office building, and Webb Tower (WTO), a 14‐story residential building, were chosen as case‐studies to represent mid‐size buildings constructed in the Los Angeles area. Four hypothetical structural systems for retrofit were studied: steel braced frame, steel moment frame, concrete shear wall core, and concrete moment frame systems. In accordance to design earthquake loads, the different systems' differences in framing element size, weight, and cost were detailed and recorded. This study will help future architects, engineers and contractors to understand the value issues in trade‐offs of material and structural choices. ❧ The thesis conducted a study of these structural systems in these steps: first, differing levels of design loads were implemented to each system, and framing elements had been selected accordingly. Simplified hand calculations were used to calculate design loads, and an excel spreadsheet with design formulae was used to select the framing elements. A three‐dimensional modeler, SAP 2000, was used to assign all members and evaluate each structural system. Second, through SAP 2000’s feature, “steel/concrete design check of structure”, all members proved viable in accordance to current code. Data from the building was then extruded onto an Excel spreadsheet in order to analyze cost for each system and retrofit. Through this study, a guideline for choosing the most cost‐efficient structural system was created for an earthquake zone such as Los Angeles. Though these structural systems cannot represent all building types in Los Angeles, the present study outlines a system for typological study for working professionals in design of structures. This study hopes to assist designers and contractors in the reality of building for safety rather than cost. |
| Keyword | architectural engineering; structural retrofit; structural engineering; cost effectiveness; steel moment frame; steel braced frame; concrete shear wall core; concrete moment frame; California Building Code |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m |
| Rights | Kim, Han Sang |
| Access conditions | The author retains rights to his/her dissertation, thesis or other graduate work according to U.S. copyright law. Electronic access is being provided by the USC Libraries in agreement with the author, as the original true and official version of the work, but does not grant the reader permission to use the work if the desired use is covered by copyright. It is the author, as rights holder, who must provide use permission if such use is covered by copyright. The original signature page accompanying the original submission of the work to the USC Libraries is retained by the USC Libraries and a copy of it may be obtained by authorized requesters contacting the repository e-mail address given. |
| Repository name | University of Southern California Digital Library |
| Repository address | USC Digital Library, University of Southern California, University Park Campus MC 7002, 106 University Village, Los Angeles, California 90089-7002, USA |
| Repository email | cisadmin@usc.edu |
| Archival file | uscthesesreloadpub_Volume4/etd-KimHanSang-878.pdf |
Description
| Title | Page 1 |
| Full text | SEISMIC RETROFITTING WITH COST EFFECTIVENESS: STEEL BRACED FRAME, STEEL MOMENT FRAME, CONCRETE SHEAR WALL, CONCRETE MOMENT FRAME by Han Sang Kim A Thesis Presented to the FACULTY OF THE USC SCHOOL OF ARCHITECTURE UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF BUILDING SCIENCE August 2012 Copyright 2012 Han Sang Kim |
Comments
Post a Comment for Page 1
