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HomeMy WebLinkAbout11/14/2001 - STAFF REPORTS DATE: November 14, 2001 TO: City Council FROM: Assistant City Manager- Special Projects BLAST ASSESSMENT RECOMMENDATION: It is recommended that City Council approve Amendment No. 2 to Agreement No. 4382 with the Airport's Architect,Gensler,for Sub Consultant Blast Assessment Work related to the Palm Springs International Airport Terminal Expansion Program. SUMMARY: This action would authorize a Blast Assessment of the Airport Terminal Building so as to enable the Airport to access security grants from the Federal Government. BACKGROUND: With the recent events of "September ll," security at airports has changed forever. To meet the challenges of new security mandates, physical changes over the long- term will be necessary. Many of the changes will be grant eligible; however, a blast assessment of the terminal facility by an FAA-recognized expert will be the prerequisite to any grant request. Our Airport Architect, Gensler, has previously worked with one of the top firms in the field,an FAA-recognized consultant,WeidlingerAssociates, Inc.(brochure attached). Staff has met with Gensler and Weidlinger at the Airport and developed a scope of work necessary to complete an initial blast assessment of the terminal building. Gensler would provide all the necessary documentation on the existing structure and Weidlinger, utilizing the blast assessment engineering software, will conduct the assessment. From this assessment,the Airport will be able to then move forward with a design effort to try and minimize the blast exposure of the terminal building. The total cost of the assessment phase will be $60,500, including reimbursables. The Commission reviewed this request at its November 7,2001,meeting and recommends City Council approval. A Contract Amendment, along with a Minute Order approving the Amendment, is attached for City Council consideration. JA Gensler Amendment#2 November 14, 2001 Page Two Funds will initially come from the Airport's Unscheduled Capital Project Account 415- 6400-5000 and will be reimbursed from the Airport's upcoming Fiscal 02 grant request. ALLE F. SMOOT,AA�E Assistant City Manager- Special Projects APP OR VED--f-���✓� City Manager ATTACHMENTS: 1. Minute Order 2. Amendment#2 3. Weidlinger Brochure REVIEWED BY DK OF FINANCE AMENDMENT NO. 2 AGREEMENT#A4382 -AIRPORT ARCHITECTURAL DESIGN THIS SECOND AMENDMENT to Agreement #A4382 for contract services, (herein "Agreement") made and entered into on the day of , 2001, by and between the CITY OF PALM SPRINGS(herein"City")and GENSLER(herein"Architect") is hereby amended effective 2001, as follows: 1. Exhibit "A" Scope of Services, is hereby amended by adding the following: BLAST ANALYSIS -TERMINAL BUILDING. At the request of the CITY, GENSLER has agreed to retain Weidlinger Associates, Inc. to provide a blast damage assessment of the existing Airport Terminal Structure. Following an initial site visit, it was concluded that the possibility of truck level threats is very remote and therefore the effort will focus on lower level sized threats. Threat A: Compact Sedan Threat B: Sedan Threat C: Passenger Cargo Van Threat D: Suitcase The charge weights associated with each threat is in accordance with the latest FAA directive and will be identified in separate documentation. Standoff distances were established at four locations: Standoff#1: Inner Roadway Curbside Standoff#2: Outer Roadway Curbside Standoff#3: Public Parking Zone Beyond the Roadways Standoff#4: Future Master Plan Roadway Alignment SCOPE OF SERVICES 1. Assessment of the Exterior Canopy for Threats A, B and C at the four standoffs. 2. Assessment of the Center Terminal for Threats A, B and C levels at the four standoffs. 3. Assessment of the low rise North Wing for Threats A, B and C at the four standoffs. 4. Assessment of the low rise South Wing for Threats A, B and C at the four standoffs at structural bays which differ from the North Wing. 5. Assessment of the end bay zone of both low rise wings for Threat B at a close curb standoff of+ 10'-0" and a 150'-0" standoff, which is the distance to the rental car drop off checkpoint. 6. Assessment of the four building components for Threat level D at a typical interior and exterior column. 7. A final draft report (5 copies) defining the vulnerability of the structural components of the terminal to the various defined threats and standoffs. For all assessments of the parking area standoff, Contractor will determine the standoff distance where no structural damage will occur. The general method of analysis will first involve the use of applicable computer codes to determine the design blast loading at the critical locations. Contractor will calculate the ambient overpressure, ambient impulse, reflected pressures, reflected impulses and associated duration times as a function of the charge weight, chemical composition and the standoff distance. The dynamic loading calculated by the aforementioned programs will then be used to analyze the individual structural components (beams, slabs, columns and girders) through the use of structural analysis computer codes developed by Weidlinger Associates, Inc. (WABEAM,WASLAB, and WABIBS). These programs calculate the maximum displacement, rotation, ductility, shear and ultimate strength and check it against the increased dynamic short term strength. The results of these efforts will be tabulated, and loadings or assumptions modified to arrive at a converging result. At the end of Contractor's Phase I evaluation, Contractor will present reasonable mitigation actions to protect or harden the existing terminal facility. Deliverables will include five copies of the final report which shall be labeled "Draft" for security purposes. 2, Exhibit "B" Special Requirements, is hereby amended by adding an approved sub contractor to Section 4.3 of Weidlinger Associates, Inc. 3. Exhibit "C" Schedule of Compensation is hereby amended by adding a Special Pay item entitled "Blast Damage Assessment" at a fixed fee of $60,500 to include reimbursables, and all Document Retrieval, assembly and contract conditions by GENSLER, structural consultation with Brandow & Johnson, and a future onsite meeting to discuss the analysis findings. Up to 20%of the fee may be invoiced during the analysis effort with the remainder due upon completion of the analysis and delivery of the "draft" reports. 4. Exhibit "D" Schedule of Performance is hereby amended by adding the "Blast Damage Assessment" work item in the Schedule of Performance and allowing a performance period of 35 calendar days following Notice to Proceed. Except as specifically worded herein, all terms and conditions of the agreement shall remain in full force and effect and performance of services under the Amendment shall be governed by the provisions of the Agreement. IN WITNESS WHEREOF,the parties have executed and entered into this Agreement as of the date first written above. ATTEST: CITY OF PALM SPRINGS, CALIFORNIA By City Clerk City Manager APPROVED AS TO FORM: City Attorney CONTRACTOR: (Check One: _individual, _partnership, corporation) (NOTARIZED) By: Signature Print Name and Title (NOTARIZED) By: Signature Print Name acid Title Mailing Address: (Corporations require two signatures;one fi^om each of the following:A. Chairman of Board,President, any Vice President; AND B. Secretary,Assistant Secretary,Treasurer,Assistant Treasurer,or Chief Financial Officer.) End of Signatures e to 'C". •N Pj'n�s d�U i'tN4� n� }n kris Ytx`s' 'w�.: kk nr....4a§� a v �.nu �1.. � ', • i I The Threat of Explosion Weidlinger Associates has been People First Physical Hazards the recognized leader in defense- related blast effects research and The goals of blast-resistant design Flying Debris design programs for more than are to reduce the severity of Broken Glass four decades. It is the only US injury, facilitate rescue, expedite Smoke and Fire firm in the security engineering repair, and accelerate the speed of Blocked Exits field with decades of experience return to full operations. Power Loss in both commercial structural Communications Breakdown engineering and blast resistant Progressive Collapse of Structure design. As attacks by terrorists on public and corporate buildings become more frequent, the firm A Fred P. Murrah Federal Building, Oklahoma City continues to broaden its efforts and commitment to protective structural design. No Bunkers Please Since we don't wish to live and work in a city of fortresses, a pw delicate balance must be achieved between protecting people and property and providing a pleasant work environment. The engineer who is experienced in assessing a structure's vulnerability works unobtrusively, an ally to both owner and architect. The sacrifice of open spaces,prominent windows and atriums, and convenient underground parking is not always required, and must \ /\�"^ ae9�Y"' Area of '" ' Tower-- � be weighed against the potential Public `; Damage Llb a i threat. Si.P.W. Th.Delly ♦ ♦ Calhederal Oklahoman 1, A car bomb attack on the MD" e".na� � Federal Building in Oklahoma City affected buildings up to hal( a mile from the blast site. 147 WEIDLINGER ASSOCIATES Risk Versus Cost The probability that any single According to The Seminal (Vol. I, Typical Threats building will sustain damage from No. 3, Third Quarter 1993), a accidental or deliberate explosion publication of the Industrial Risk External car bomb is very low,but the cost for those Insurers Society, explosion has the Internal car bomb who are unprepared is very high. highest average dollar loss of all Internal package bomb perils. Small arms ballistic Industrial Risk Insurers 35 3 Year Average © % Incidents 30 % Dollars 25 20 15 I � 10 5 lI Fire DIC Boiler/ Wind Sprinkler Explosion Lightning Molten Perils Machinery Leakage Material "The biggest structural engineering lesson learned "Security and protection can be incorporated into front the Oklahoma City bombing was the need to buildings to act as a passive, nonintrusive shield to improve the structure's ability to sustain significant random terrorism." local damage and remain standing." Tod Rittenhouse Matthys P. Levy Principal, WeidlingerAssociates Principal, Weidlinger Associates Civil Engineering, October 1995 Fire Engineering, December 1993 WEIDLINGERZEZI ASSOCIATES Strategies For A Strong Defense Weidlinger Associates provides Analysis & Design of New professional engineering services and Existing Structures to improve the level of protection in new and existing facilities. The more layers of protection between attacker and target, the Planning of New Facilities less appealing the target. External barriers, either camouflaged as With new facilities, the key to part of the landscaping or effective design is early planning, introduced as bold statements of which may provide a measure of defense,may be sufficient to deter protection at modest cost. attack. These barriers maintain the Solutions introduced at the keepout distance, which is an beginning of the design process "' essential part of any solution. are always significantly less Additional protection results from expensive and usually more a strong building envelope, effective than those applied as an :, i', including facades and windows, a afterthought. ductile structure, and special detailing. Assessment of Existing ; Structures ` Development of Guidelines Every building is unique and our In the absence of building codes inspection of the physical and for blast resistance, Weidlinger operational aspects of a facility Associates' engineers have led the often uncovers hidden strengths or field in developing blast weaknesses. Even structures that engineering standards. We were built years ago may provide continue to improve our analysis inherent protection or defenses and design tools by using data that can be improved with t from actual terrorist attacks on minimal redesign. buildings, and from simulated events. The Department of State World Trade Center J Structural Engineering Guidelines Assessment/Upgrade for New Embassy Office New York, NY „,. P !` Buildings, authored by the firm, is (above) _ '' ._ -., the only blast design guidelines document approved by the US ` + government for protection of non- East Parking Garage i. military installations. New Design JFKAirport, Queens, NY (right) W E I D L I N G E R A S S O C I A T E S Protective Design is a Balancing Act The most important goal of a security program is to save lives by preventing the catastrophic collapse of a building. The sacrifices associated with increased security—financial, social, aesthetic—drive the design _�--- process. An optimal program weighs issues of vulnerability, financial cost, and form and function. Economics While there are numerous ways to protect a structure and its inhabitants from the threat of terrorism,there are no guarantees. Reduced vulnerability comes at a price, and there is a point beyond which more money doesn't buy construction cost increase through outlay of funds or sacrifice of more safety. Weidlinger a series of artful compromises. amenities yields diminishing Associates' engineers are potential protection. experienced in offering solutions Our first role is to define the that make the best use of funds optimal design zone, balancing Our second role is to introduce budgeted for protection. issues of cost, form and function, strategies that improve the passive and vulnerability, and locating the resistance of the site, reduce costs No One Right Answer point beyond which increased by taking advantage of seismic requirements, and encourage the Defense of civilian structures Coct Vulnerability creativity of architects and against explosion is not an exact builders. science. Every site and structure is TwdDe„b. unique, and the optimal design Optimal Dcslgn ; Our third role is to act as zone cannot be arrived at by zen ; informed mediator. The solution formula. There are many design ,% will reflect the priorities of the rl��tii1�. options available to reduce the �� fI u owners, the ingenuity of the risk to any building. Subtle IIIIIDI��� i1nea6i1iy designers, and the ability of decision making is required that _ �i ���I Cog everyone to communicate III ulil _ satisfies all parties to the design ,I��'} effectively. and construction process. The Deslpn Parameters goal is to achieve the least impact /4#/0 on aesthetics and the smallest WEI DLINGER ASSOCIATES Blast Models Beyond Generic Software equipped to model blast field scale testing. It remains at phenomena and building response, the cutting edge of technology Weidlinger Associates' engineers we have developed special- through use on government depend on validated computer purpose programs on a routine projects for the US Defense software to provide services in basis to fill the gap. The software Department, the Defense Nuclear blast resistance. Since we find is qualified through US Agency,the Departments of State, generic commercial programs ill- government-sponsored model and Justice, Treasury, and the General Services Administration. WASLAB aids The Sequence of Effects analysis and design of reinforced concrete slabs for e e Explosive effects propagate blast effects o =r =t = radially from the initial charge; all (o e e eve o e structures within its path are susceptible to damage, even �- ve aoo neighboring buildings that are not �T primary targets. The components of the building are affected in a oDesign Slabs somewhat predictable sequence. While the intensity of the blast diminishes with distance from the source, the extent of damage Blast depends on the charge weight, the relative position of the explosive device, and the design details. WABEAM aids From a structural point of view, the blast scenario can be analysis and subdivided into three phases, each design of beams of which introduces a new set of and columns for engineering considerations. In the blast effects first phase, exterior walls, columns and windows are affected; in the second phase, floor slabs and roofs, columns and beams; and in the third and last phase, the lateral load resisting frame. Successful blast-resistant design takes into account all three phases. Blast W E I D L I N G E R A S S O C I A T E S Engineering Details The Site anti-terrorist engineer always lives with the specter of high casualty Weidlinger Associates' engineers and death tolls from catastrophic address issues of passive collapse. Cost increases are often protection first. Strategic nominal, when added to the outlay placement of the building and for seismic or wind resistance and parking and the use of bollards, weighed against the potential risk planters, and gates,to reduce to life and property. Careful traffic volume and speed,usually connection detailing, whether for lead to the most economical reinforced concrete or steel ® �Y solution. In designing a new structures, has proven to be of Adding planters lessens Phase I building, the entire layout should utmost importance for blast- effects by increasing standoff be influenced by security resistant structural systems. Our distance. considerations. engineers utilize drop panels and top reinforcement to thicken the The Building Envelope slab near the column. Over the past decade all embassies designed by major Shear Wall architectural firms follow anti- terrorist guidelines developed by Weidlinger Associates for the State Department. These buildings are proof that an attractive structure can be achieved within a security context, despite the use of heavy exterior walls to replace Blast open bays, and reduced size of openings for doors and windows. Sensitive engineering will continue to play a significant role in defining the new security aesthetic. - Frame and Connections Detailing practices widely used by designers to satisfy seismic code requirements can be easily Lateral load resisting mechanisms are used to strengthen overall adapted to design a blast-resistant structural response against Phase III effects. Better connection detailing structural frame. A cautious counters Phase II and Phase III effects. 0 WEIDLINGER ASS! I A T About Weidlinger Associates Weidlinger Associates is an The firm has received many major Representative Clients internationally well-known awards for technical excellence (for Protective Design Projects) consulting firm for structural and and creative design, including an civil engineering and applied Honor Award from the American US Government science. The company has Institute of Architects for being Department of Defense provided services worldwide since "pioneering engineers and Air Force Ballistic Missile Office 1949 to government agencies, structural designers, whose developers, institutions, and innovative solutions and long- Army Corps Engineers corporations. Four US regional standing commitment to research Defense Nuclear ar Agency offices are located in key cities on and computer applications have Naval Facilities Engineering both coasts; staff numbers revolutionized building in Command Naval Sea Systems Command approximately two hundred. America." Department of Justice k �• Department of State L Department of Treasury I� i Federal Bureau of investigation , `,•�` 'iiSir r ,,, ,,rrr� ,� ; General Services Administration International Governments �, jpn!ml� I'■hr ��yw, + Government of Germany tlr11�iP.4'[Ut ... NINON .w` wJ ,r^' ' 'YRRRpRdfill - it Government of Italy Pi i'Y 4irirdr;, rf ",; ! n� Government of Portugal Kingdom of Saudi Arabia ,pawl Transportation Authorities I`r � t Port Authority of New York& US Embassy, Cairo, Egypt New Jersey Massport Weidlinger Associates Private Corporations Consulting Engineers http://www.wai.com Chevron Oil Company 333 Seventh Avenue One Broadway, 11th Floor Electricite de France New York, NY 10001 Cambridge, MA 02142 Federal-Hoffman, Inc. (212)563-5200 (617)374-0000 (212)564-2279 (Fax) (617)374-0010 (Fax) Rockefeller Center Management Corp. 4410 El Camino Real 1735 Jefferson Davis Highway Union Oil Company Suite 110 Suite 1002 Los Altos, CA94022 Arlington, 11 22202 United Technologies 14013 (415) 949-301010 (703)412-1178 (415) 949-5735(Fax) (703)412-1182(Fax) MINUTE ORDER NO. APPROVING AMENDMENT NO. 2 TO AGREEMENT #A4382 WITH GENSLER TO PROVIDE A TERMINAL BUILDING BLAST DAMAGE ASSESSMENT VIA SUB CONSULTANT WEIDLINGER ASSOCIATES, INC. IN AN AMOUNT NOT TO EXCEED $60,500, I HEREBY CERTIFY that this Minute Order approving Amendment No. 2 to Agreement#A4382 with Genslerto provide a Terminal Building Blast Damage Assessment via sub consultant Weidlinger Associates, Inc. in an amount not to exceed $60,500 was adopted by the City Council of the City of Palm Springs, California, in a meeting thereof held on the 14" day of November 2001. PATRICIA A. SANDERS City Clerk