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Portfolio 12-19
 

Portfolio 12-19

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    Portfolio 12-19 Portfolio 12-19 Document Transcript

    • Refugio Rochin Projects since August 2004Monday, November 15, 201012:56 PMPresenter Name: Refugio M. RochínCompany Names Presented in Portfolio: Nature Acoustical Contracting to : Pirooz Barar and Associates, Dawson Wells Consulting, and Benico Construction SOHA Engineers Systems Engineering LimitedDescriptionThis Presentation Portfolio provides a retrospective view of work accomplished over the last 6 years + with a brief overview to 1994.Portfolio Contents 1. 2009 - Present Resumé and Example Software 2. 2008 - 2009 Work With SOHA Engineers in San Francisco 3. 2004 - 2008 Work With Systems Engineering Limited in the British Virgin IslandsEducation ► Bachelors of Science, University of California, San Diego in La Jolla, Received June 14, 1996, GPA 3.14/4.00  Strong Subject Fields: Plates & Shells (Dr. E. Luco), Structural Analysis (Dr. Frieder Seible), Mathematical Physics (Dr. Nemat- Nasser, Solid Mechanics (Dr. H. Murakami), Numerical Methods (Dr. R.J. Asaro), Steel Design (Dr. C-M Uang) ► Masters of Science, University of New Mexico in Albuquerque, Received December 16, 2000, GPA 3.66/4.00  Thesis: Shape Control of a Composite Mirror Substrate Utilizing Shape Memory Alloy  Graduating Advisor  Dr. Arup K. Maji, Specialities in Smart & Adaptive Structures, Composite Materials & Nuclear Transport  Thesis Advisory Committee Members  Dr. Walter Gerstle (Prof. Computational Mechanics) & Dr. Peter Wegner (Prof. Composite Materials)  Project Advisors at ATR Institute: Dr. Gordon McKeene & Lecturer Lary LenkeCompany Websites Throughout Career since B.S. at UCSD  1997 http://www.postensoft.com/ OReilly and Associates and ONeal and Associates both merged to build Posten.  1997 http://www.bay-ship.com/ Bay Ship & Yacht was probably not even a quarter the size of what it is now.  1998 - 2000 http://www.unm.edu/~civil/ & http://www.unm.edu/~atr/ & http://www.kirtland.af.mil/afrl_vs/  2000 - 2003 What was Boyle Engineering Corporation has merged with AECOM http://www.aecom.com/  2004 - 2008 http://www.systemscaribbean.com Systems Engineering in the news http://tiny.cc/srkth  2008 - 2009 http://www.soha.com/ Long-term established firm in San Francisco since 1965, original owner still going strong.  2009 - http://natureacoustical.pbworks.com Current website, conceptual framework, focus in engineering education ○ http://pbandainc.com Pirooz Barar individually established PB&A in 1983 after 16 years into career. ○ http://tiny.cc/azzt3 Links to contact information for Benny Shalom of Benico Construction, long-term individual career as engineer and contractor ○ http://tiny.cc/qokwe Dawson Wells Consulting in current headline news BVI.Experience Summary  Structural Design Engineer with experience in the design, analysis, and detailing of office buildings, residences, retaining w alls, soil- integrated walls (ie MSE and Soil Nailing), internal foundation improvement mix columns/piles, mat and strip foundations, und erpinnings (concrete and steel), permanent and temporary shoring, demolition, strut-and-tie design for deep beams and walls, lateral load systems, slab deck bridges, pre- and post- tensioned concrete bridge beams, seismic design of bridges, and buildings up to 8 stories. Experience with ship rehabilitation, DNC/CAD inter-linkages, and Hull design. Experience with adaptable optics research, space systems, and composite materials design, manufacturing, and assembly. Experience with underwater acoustical systems, passive receiving dishes, and sealed underwater canisters. Experience with construction observation of concrete and masonry structures. Experience with Water -barriers designs.  Project Managing Engineer with experience leading design efforts in Resort Design, Technical projects with seismic and hurric ane loads distribution, complex connection issues from non-matching materials, ie steel to masonry and concrete, and aluminum to protruded fiber reinforced rods into a fiber-composite base. Design-Build work with 5-Story Concrete Building with SMRF : Infilled Masonry Walls Lateral load system.  Project Coordination for BART Utilities and Drafting standards.  Project Quality Review for Glendale Seventh Day Adventist Hospital  Construction Administration for large scale hospital shoring projects, and two small scale drilled shaft pile walls. NAXUTL Page 1
    • OverviewMonday, November 15, 201012:10 PMProject Name: Wind Subjects : Hurricane Regions Project Name: Earthquake Subjects : High Seismic Zone RegionsCompany Name: NAXUTL : Nature Acoustical Company Name: NAXUTL : Nature AcousticalPresenter Name: Refugio M. Rochín Presenter Name: Refugio M. RochínDescription DescriptionDescription of Developed Programs : Wind Analysis Module Description of Developed Programs : Seismic with Gravity Loads ModuleProjects Employed Projects Employed  Cable and Wireless Monopole and Trussed Towers  Peebles Hospital  Multiple Residential Buildings  525 Golden Gate Avenue  Fireside Barn at Point Reyes  Fireside Barn at Point Reyes  Grisham-Clothier Residence  Grisham-Clothier Residence NAXUTL Page 2
    • Wind Loading Main Profile Input-OutputMonday, November 15, 20107:15 AM NAXUTL Page 3
    • Topographic FactorsMonday, November 15, 20107:19 AM NAXUTL Page 4
    • Cf Standing TowerMonday, November 15, 20107:22 AM This Program allows for the Calculations of Standing Towers, with Antennas, and fluxing modules. NAXUTL Page 5
    • Design Response Spectra & Equivalent Lateral Force ProcedureMonday, November 22, 20108:44 PM NAXUTL Page 6
    • Gravity, Live and Seismic LoadsWednesday, November 17, 201012:42 AM NAXUTL Page 7
    • ISAACSON RESIDENCE - BENICO - FLAT SLAB WORKWednesday, December 08, 201012:41 PM NAXUTL Page 8
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    • Systems Engineering Typical Project ProfilesMonday, November 15, 20106:10 AMProject Client Cost Completion Services Provided Project DescriptionJOMA Barracks Building JOMA Properties $2M 6/2006 Structural design Four story office building on plied foundation in Road TownPeebles Hospital B.V.I. BVI Government $45M 6/2007 Civil and structural design New 7 story hospital on very steep site. 155,000 sqConstruction starts 10/2005 Site supervision of civil and ft. in steel. structural works.Maria’s Office Building II Private Owner $5M 12/2006 Design Consulting New 5 story office building with piled foundations in Road Town.Veterans Housing Project St. USVI Government $19M 12/2006 Civil & structural design. New housing complex comprising 13 three storyThomas USVI bungalows and one 6 story building.Virgin Gorda Yacht Harbor R Penn & Associates $15M 10/2006 Structural Design and Field Two 3 Story office complexes in Virgin Gorda onBuildings I and II Services piled foundations, Banco Popular regulations in 2nd Building SYTMENG Page 10
    • JOMA PropertiesMonday, November 15, 20105:56 AM JOMA Properties : ONeal Building JOMA Properties : Barracks BuildingThe ONeal Building is still the most interesting building that I have The JOMA Barracks was my first on island project, and theworked on in my career as a Civil-Structural Engineer for several reasons. building was under construction when I arrived. TheFirst of all, the building suffered from 5 structural irregularities building piles had begun to be driven, and I worked onincorporating a weak story at the lower two floors, differential masses at coordinating the construction work with the drawings,all of the floors greater than code differentials, different materials at each while renderin a few design details with sketch work.floor, level, and vertical and horizontal load path irregularities. Thebuilding gets longer moving up towards the 4th floor, due to the setbackin the hill. And, the materials are very interesting, with an enormouscolumn approximately 4 feet in diameter. Thus I began to develop adynamic evaluation of the building to satisfy analysis requirements withirregular buildings, which became rather cumbersome to minimize indetail language. The experience was a terrific learning experience. I amcurrently undergoing final analysis computations. The client postponedthese analyses, now I am conducting the work for educational purposes. JOMA Properties : Commerce House SYTMENG Page 11
    • Note: The model The JOMA Commerce House was my and drawing is last assignment before leaving the actually mirrored island. I created a full scale model in from the actual Visual Analysis and STAAD, and had configuration. created a first round of analyses and The jutting drawing renderings, however, some ofThe walls around the basement are mostly made of portion on the the architects ideals were constantlyplaced rock with mortar in the joints, not a usual right is a separate changing in highly pertinent stabilitymasonry style although it appears to be masonry. building attached points for the structure. Therefore, IThe Next floor is a similar material, yet it is very light at a small bridge left the island with the mere modelcontaining mainly timber framing, while the floor with a flexible and a batch of computations loaded toabove (3rd Floor) is a very heavy floor with many connectivity. the gills. Upon my return to the islandinternal wall cubicles, and a terrific number of 2 years later to work with Dawsoninternal block walls. The top floor is closer in style to Wells, the building was almostthe 3rd floor, except that the backside contains a complete in construction. Thecomplete car parking lot. The main building connects contractor moved the architect toto a flexible building at the backend. change the structures mode completely, removing the flat slab forI believe it must be partially the great faith of the a basic steel pan composite decking. ITortolian islanders that keeps the building standing, was pleased with the structuresbecause it is one of the oldest buildings in Road overall configuration, impressed by theTown, and there are frequent earthquakes of mode for the front pane installation,magnitudes ranging from 3.5-4.5 on the Richter scale. although dissatisfied with theThe building appears to survive with a wit from the precautions of the crew.chemist that designed and built it in 1967. SYTMENG Page 12
    • Peebles Hospital - Community News of Construction ProgressMonday, November 15, 201012:44 PM Peebles Hospital Design Phase 2006-2007 After several years of negotiations with BVI Officials, Peebles Hospital Design finally progressed beyond a mere skeleton, and by 2006, our company was maneuvering the design phase of PEEBLES HOSPITAL coordinating with PAGE SOUTHERLAND PAGEs architects, mechanical outfitters, and Hospital design experts. Design of a hospital especially for the government sector which is planning for the entire country as well as other regions of the Caribbean, such as ST. Kitts and Nevis, and perhaps Montserrat in emergency events. The hospital is a 7-story steel moment frame with concrete encasement for fire and corrosion protection, with lateral restraining further composed of shear walls, bracing and cross-cabling. My involvement was to complete the seismic system, complete for essential earthquake standards, and to complete approximately 70% of the details, including the core walls, and the foundation, and the dual-directional moment frames including a number of the appurtenances, while keeping the CAD-Architectural changes up to date. At the time of my departure from the BVI, the footings had been cast, while a large segment of a wall that was not tested by geotechnical engineers due to the governments decisions, came to crumble costing a tremendous setback at Pasted from <http://bvinews.com/bvi/progress-report-on-the-new-peebles-hospital-statement-by-deputy-premier-and-minister-of-health-hon-dancia-penn- obe-qc/> the time.. SKN VIBES : St. Kitts and Nevis Online Periodical : January 2009 SYTMENG Page 13
    • SKN VIBES : St. Kitts and Nevis Online Periodical : September 2008Screen clipping taken: 11/15/2010 12:46 PM SYTMENG Page 14
    • Virgin Gorda Yacht Harbor BuildingsThursday, November 25, 20105:42 PM Selected Details (2005 - 2006) Constructed in 2007 SYTMENG Page 15
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    • Scrub Island ResortMonday, November 15, 201012:22 PM Scrub Island Systems Engineering Limited has been working on high scale residential buildings in the Caribbean for the last 15-20 years, among all of the BVI Islands, including Cooper Island, and Guana Island, as well as Mustique one of the Grenadines, Nevis, and Anguilla among othersand this project with OBM was one of the biggest projects taken to date, completely branding Scrub Island with the Resort Marina and an entire fleet of new homes. All the while, Richard Branson was working on his neighboring island Mesquito. For Scrub Island, our company divided the work, and I worked on the design for approximately 10 of the residential buildings. Most of the work our lead drafter , Architect/Engineer Mitchell designed, however, my key role was constantly keeping up a number of the facilities at the level of the accelerating projet whilst the sea-bed found a harsh damage due to the interferences of the dusting of the grounds. In the meantime I worked on a number of conciliatory efforts for much previous financial damages wrought by hurricanes in ensuing regions.Screen clipping taken: 11/15/2010 12:25 PMScreen clipping taken: 11/15/2010 12:26 PM SYTMENG Page 17
    • Tiwanee Resort in AnguillaThursday, November 25, 201012:28 AM My work at Tiwanee Resort involved Design of Building D, and conducting some calculations for Building blocks G and A. I built the scale Finite Element model of Building D (at left), and sized the shear walls in the building. SYTMENG Page 18
    • Other Projects at Systems Engineering LimitedTuesday, November 16, 20104:09 PM Sterling House , owner Donna Sterling I worked with Donna on this project, it was one of the most interesting projects I had for detail and design. We came into the project to modify the existing design, and to update the design to current International standards. I built a full scale finite element model of the residence, it was most interesting because Donna constantly made changes, and enjoyed working on the job with us and the contractors. Most of my drawings were hand drawn sketches, however, the model was very intricate, utilizing STAAD for plate element feedback,and Visual Analysis for columns designs. Structural Features Flat Slab Construction. Intricate pool layout over pool house building. Tower with stair winding around. Multi-level building with steps internal. Retaining walls incorporate deadman into hill. Seismic Design Features Internal beams in flat slab for punching shear spread.http://www.perfectplaces.com/vacation-rentals/147350.htm SYTMENG Page 19
    • SOHA Typical Project ProfilesWednesday, December 01, 20105:01 PM SOHA Page 20
    • SFGH Excavation and Moat Wall InstallationMonday, November 15, 20101:10 PM An interesting project, including our shoring portion as our President and Principals decided to invest in the company to train the entire engineering and CAD staff in BIM using Revit. This was our first project putting Revit to the test. In the SFGH Moat Wall Project, I gained a preliminary comfort level in interacting with the government partnerships for our opening meetings within the project scheduling and coordination group. My first duties involved identifying existing building information provided through the internal network of government documentation detailing all of the prior, existing and new construction within the vicinity. Subsequently we identified seismic and gravity lateral earth pressures to be applied to the proposed moat wall.Screen clipping taken: 11/15/2010 1:11 PM The Moat Wall provides a separated shoringCurrent Construction Effort Web Cam : SFGH WEB CAM : Excavation Phase wall, separate from the new hospital building, which inevitably supports the load from the soil and surroundings, and isolates the building from moisture and ground movement. With a team of 4 engineers and three draftsmen, we utilized the Revit class to complete the entire Moat Wall and design process within a span of less than 3 months from the initial team meeting. My final contribution involved engineering the tunnel to enter into the existing hospital building, and to provide shoring for such tunnel. I utilized RISA for a multiple shoring configuration, and Strut-and-Tie design for demolition and entrance design into the existing building. The demolition portion took a fair portion of calculations to support the less conservative older designed hospital particularly for seismic considerations while the excavation would be open.Screen clipping taken: 11/15/2010 3:39 PM3-D Perspective and Plan Vision SOHA Page 21
    • Lower Crystal Springs Dam Improvement ProgramMonday, November 15, 20103:54 PM A Temporary Soil Nail Wall to Support Rehabilitation Efforts The California Department of Water Resources, Division of Safety of Dams (DSOD), is responsible for regulating all dams in California. In 1983, the DSOD restricted the amount of water the SFPUC could store in Crystal Springs Reservoir because of concerns that the dam could be overtopped, and subsequently be damaged and/or even fail, during the Probable Maximum Flood (PMF). The PMF is the theoretical flood event predicted to occur under the most severe and extreme combination of meteorological and hydrological conditions in a particular drainage area, and the DSOD includes the PMF as part of its design requirements to ensure the safety of the LCSD. Although the PMF has a very low probability of occurrence, design for the PMF event is mandated by the DSOD as a “fail safe” design for lesser flood events. The Lower Crystal Springs Dam Improvement Project is a project that SOHA acquired through the ongoing relationship with URS and SFPUC contract services, particulary for SOHAs strengths in Shoring and Trenching. We came into the LCSD Improvement Project to provide shoring for the new stilling basin designed by URS at the toe of the dam. The figures below provide a brief visual of the relationship of the dam improvements to the Hetch Hetchy overall project base. Our involvement concerned providing a temporary shoring wall for the stability of the land slopes upon demolition of the existing stilling basin, excavation, and reconstruction of the new stilling basin. Assumptions were provided that the Dam itself requires no external support during the construction. The Dam controllers may serve to limit the water levels in the reservoir. With the dam on the active San Andreas Fault, I examined the temporary shoring wall with a probable expectation of a 50-year seismic event which has been gestured to occur anytime in the present based on experimental data relating the occurrence of earthquakes in the past century and for the pertinent susceptability of the region. We utilized soil nail construction design to assist in top- down construction and to minimize damage to the natural landscaping. The soil nails will remain after the stilling basin is cast. A portion of the design project is demonstrated next in this tabular documentation. Major Environmental Analysis - SFPUC Cases - CEQA Documents SOHA Page 22
    • Excerpts from the Draft Environmental Impact Report for the Lower Crystal Springs Dam Improvements ProjectHetch Hetchy Reservoir System Existing Lower Crystal Springs Dam Screen clipping taken: 11/15/2010 4:10 PM SOHA Page 23
    • LCSDIP : Soil Nail Wall Calculations with Preliminary DrawingsMonday, November 15, 20105:42 PM SOHA Page 24
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    • Marian Medical Center Excavation and Shoring PortionMonday, November 15, 20105:18 PMClients : Catholic Healthcare WestManaging Engineers : URS CorporationArchitect of Record : Moon Mayoras Architects, Incorporated, San Diego, CAStructural Engineer of Record :Geotechnical Engineer of Record : Rutherford & Chekene, San Francisco, CAShoring Engineer of Record : SOHA EngineersGeneral Contractor : Kitchell Corporation I was brought into the Marian Medical Center Project towards the beginning of construction phase, with theresponsibility to evaluate the existing plans for the shoring of the hospital starting at the basement level. This wasmy first true Construction Administration project, where I was evaluating the work of another engineerat theconstruction phase, particularly to coordinate the boundaries, to verify with all other disciplines involved, tocomplete the drawings and to finalize the engineering and construction documents and hand them over to thecontractors. The contract engineer worked on the preliminary drawings and calculations. I then served as a communicationmedium working between the general contractor and sub-contractors and the clients, finalizing a hand-over of thedocumentation to the clients. My accomplishments comprised of gathering the information from all of the specificdisciplines, matching building set points, cleaning up the drawings to match standards, verifying the calculations forcorrectness and for additional loading, to issue revisions, to investigate any interferences of both constructionmobilization and structural issues, and most importantly to verify with geotechnical engineers certain data pertainingto soil conditioning and consolidation, particularly with regards to high impact pressure points due to prestressedanchoring above the base footings. Nearing a first round completion, we were struck with a new Appendix Jcomponent to OSHPD standards which required a complete revision of the Geotechnical calculations sets. I finalized providing a new set of calcs after revising for the high impact loads,and upon finding certain furthershoring necessities. The discussions proceeded with the contractors and the clients, and we put forth the final requirements such thatthe contractors would take the assignments with the clients interests at a preconstruction meeting in Santa Maria.The OSHPD Engineer of Record finalized the approval of the contract documents. SOHA Page 38
    • Screen clipping taken: 11/15/2010 5:18 PMMarian Medical CenterSanta Maria, CaliforniaThis 195,000 square foot 4-story replacement facility will relocate services from an antiquated1964 patient tower into a new innovative patient-centered care environment. This facility isdesigned to be contextual with the surrounding Santa Maria mission-style architecture and isorganized around a two-story public lobby zone, which will house a Gift Shop, InformationResource Center and multiple Public and Outpatient Waiting Areas for the entire medicalcenter.The facility will consist of 167 beds and will provide the following services:Critical Care UnitTelemetry UnitIntermediate Neonatal Nursery UnitMedical/Surgical UnitLabor/Delivery/Recovery/Postpartum UnitPediatric UnitIn addition, this project will also include the complete replacement of the existing CentralEnergy Plant.Square Footage: 358,000Project Cost: $110 MCompletion Date: Dec 2012Location: Santa Maria, CaliforniaPasted from <http://www.moonmayoras.com/GeneralAcuteCareFacilities.html#marian> SOHA Page 39
    • Other Projects at SOHA EngineersMonday, November 15, 20105:41 PMProjectsCCSF North Beach Campus Temporary Soil Nail Wall : See Description BelowSFPUC525 Golden Gate Avenue Building : Cladding, Diaphragm, and Internal Frame components including elevator well :See Description BelowLake Merced Buttress wall : See Description Next TabSt. Marys Garage Underpinning and Pre-construction investigation of cracks. : See Description BelowMercy Housing, Construction As-Built Documentation assembly. : Adjust drawings with all RFI information for final archival.166th Avenue at Hannah and Cull Canyon : Drilled Pier Retaining Walls for landslide decay.Galileo High School Bleachers Temporary Support for Rehabilitation work. : Site field decay identification, timber shoring.Parkside Branch Library : Shear Wall and roof design calculations for extension to library.Pt. Reyes Fireside barn : Wind Evaluations at Fireside barn for positionings on embankment.Prada Showroom Renovation Shoring : Pipe Column Shoring for stabilizing showroom floor construction. SOHA Page 40
    • CCSF North Beach Campus Temporary Soil Nail Wall Description SFPUC 525 Golden Gate Avenue Building Deemed the worlds Greenest Building.http://forum.skyscraperpage.com/showthread.php?t=159669 My tasks involved cladding design, internal elevator framing, and photovoltaic panelI designed shoring using soil nails for a temporary excavation . The framing supports including seismic andexcavation sequence next to a high-rise building was performed in two gravity analysis.steps. First a set of steel piles were drilled in next to the existing building,while in the meantime, the excavation was established top-down to begina first phase excavation. Subsequently this first phase soil nail wall wouldbe completely removed to continue the excavation up to the drilled piles.The below description describes Treadwell & Rollos team of engineerswhom we worked with on the Shoring Project for the CCSFChinatown/North Beach Campus excavation. Further description St. Marys Garage Underpinning and Preconstruction Investigation A "new building" zone requiring underpinning of the existing buildings at the demonstrated walls, the zone is within the demarcation lines of the walls. The walls were investigated for all existing cracks prior to any work involvement as a part of pre-construction litigation prceedings. SOHA Page 41
    • Lake Merced Pump Station Installation of Secant PilesWednesday, November 17, 20102:35 AMOverlapping Secant Soil Cement Piles with Embedded Wide Flange Internal Soil Buttress Wall For the Lake Merced Pump Station Redesign, a complete geotechnical soil improvement program wasimplemented around the entire premise due to vast quantities of liquefiable soil. Prior to soilimprovements, the region is susceptible to liquefaction, and thus the entire support system of the mainbuilding could heave into Lake Merced with a seismic event. This soil cement buttress wall providesstability to the main portion of highly susceptible liquefiable soil in the region, and particularly focuses onthe zone surrounding the Lake to Pump Station exchange piping system. The secant piles are overlocking zones of soil-cement grout with embedded steel piles. The entire soil-cement grout zone serves as a barrier to water and soil flow, thus partially preventing entrance hydraulicflow of ground water into the region, as well as preventing soil movement. Further soil improvementsconducted by the geotechnical modifications have provided for further densification. PretensionedDeadmen with high strength tensioning bars tying into a concrete cap beam are utilized to restrain the 30foot depth of shoring soil lateral earth pressures considering the portion of soil at the lake banksubmerges. My main tasks involved the engineering design for the buttress wall, on-site measurements, clientcoordination meeting attendance and scheduling, and CAD drafting with CAD management. SOHA Page 42
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