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Ballard G.,University of California at Berkeley | Dilsworth B.,KPFF | Do D.,University of California at Berkeley | Low W.,Degenkolb Engineers | And 6 more authors.
Lean Construction Journal | Year: 2015

Question: How to make shared risk and reward sustainable? Purpose: To bring to the attention of the construction community the risk that shared risk and reward approaches to project delivery are themselves at risk, and to promote practices that assure its sustainability. Research Method: Case study of a ‘failed’ shared risk and reward project by academics and industry practitioners, some of whom were participants on the project. Findings: The countermeasures to failure of shared risk and reward projects are predominantly principles of Lean/IPD project delivery previously formulated but not universally followed. Limitations: The proposed countermeasures need to be tested against more shared risk and reward projects. Implications: Despite its evident value, shared risk and reward can die unless both clients and service providers follow principles of Lean/IPD project delivery. Value for authors: The authors are strong advocates for shared risk and reward and hope to awake the industry to the possibility that it may disappear. © 2015, Lean Construction Institute. All rights reserved.

Boothe N.,EXP Inc | Crossey D.W.,Lovorn Engineering LLC | Mclaughlin M.,Southland Industries | Sheerin M.,Health Care Engineering
Consulting-Specifying Engineer | Year: 2012

Among the most challenging aspects of hospital projects is insufficient capital for the best value design. It is easy to implement low-cost options, but in an environment of limited capital budgets, more expensive or comprehensive options often lack the support for funding. When determining mechanical, electrical, plumbing (MEP), and fire protection system design, accurate, reliable, and unbiased budgets must reflect first costs and total cost of ownership. Excess capacity should also be factored into initial budgets. Too often design teams value engineer extra capacity out of design to save on first costs. Total cost of ownership should include the ramifications of limiting or eliminating excess capacity.

Hallenbeck M.,Southland Industries
ASHRAE Transactions | Year: 2012

The BRAC 133 Building in Alexandria, Virginia is a 1.7 million square foot office tower owned by the Department of Defense. The building utilizes an innovative Fan Powered Induction Terminal Unit (FPIU) system with Outside Air (OSA) provided by a Dedicated Outdoor Air System (DOAS). The building is programmed to achieve LEED NCv2.2 Gold status with an energy savings of 24.7% over the ASHRAE 90.1-2004 baseline system. The Fan Powered Induction Unit is a modified series fan powered variable air volume terminal unit equipped with a filter, primary (outside) air valve, supply air fan and Electrically Commutated Motor (ECM), heating coil and sensible only cooling coil. Dehumidified OSA is supplied to the zone for humidity and CO 2 concentration control. Induced air is filtered and then cooled or heated through the use of a sensible only cooling coil, or heating hot water heating coil. Induced air is supplied to the space along with outdoor air to maintain the zone temperature, humidity and CO 2 level set-points. The building is supplied with two chilled water cooling loops. A 42°F [5.6°C] latent chilled water loop utilized for dehumidiflcation of outdoor air and cooling in zones where a high latent load is present. A 55°F [12.8°C] sensible chilled water loop is utilized to provide sensible only cooling to the fan powered induction units and Information Technology (IT) loads. The use of the warmer, sensible chilled water loop yields significant increase in water side economizer usage along with increased chiller efficiency. The net result is a high efficiency cooling system that provides optimal occupant thermal comfort. ©2012 ASHRAE.

Volgyi M.,Southland Industries
ASHRAE Journal | Year: 2011

The Kaiser Downey Medical Center in Downey completed a new project of a 657,800 gross ft 2 acute care hospital and central utility plant. The most significant challenge of the project was the aggressive schedule for design, permitting, and construction. The building is served by 18 air handling units (AHU), each major department is provided with a separate unit. This allows similar rooms with similar characteristics to be served by the same unit, eliminating unnecessary overcooling and reheating of spaces with diverse uses. A 100% outdoor supply air building air-handling system serving all patient and staff support areas provides a great advantage regarding indoor air quality, with ventilation rates well in excess of the ASHRAE Standard 62.1-2004 minimum ventilation rates. The air moving equipment fire alarm shutdown strategy was developed with considerations to air-handling unit fan fire alarm shutdown and the strategy was developed with the fire alarm designers and electrical engineers.

The dual chiller plants were used to achieve energy efficiency for federal office buildings located in humid climates, specifically in Washington, D.C. The design team based its energy strategy on the concept of providing a latent and sensible (dual) chiller plant design with the ability to de-energize both chiller plants at ambient temperatures of approximately 50 F and below, and increasing the availability of the full water side economizer. Fan energy was addressed first by reducing the facility's supply air to appropriate ventilation levels. Reducing the distribution airflow saves fan energy but significantly limits the effectiveness of the air side economizer. To make the proposed dual plant design possible, all zones and sensible loads had to be combined with the sensible loop. Chiller plant equipment selection followed with multiple chiller and tower combinations. Anticipated LEED energy savings for the facility were calculated to be 24.66% resulting in 5 credits.

Vora R.,Southland Industries | Pobjoy P.,Southland Industries | Crawford M.,Southland Industries | Phillips M.,Southland Industries
Consulting-Specifying Engineer | Year: 2011

The trends associated with a standard BSL-2 compliant large university research lab from a building automation systems (BAS) standpoint and the update and interrelationship among codes, standards, guidelines, and local authorities having jurisdiction (AHJ) approvals, are explored through two case studies of university research labs. University of California San Francisco (UCSF) Cardiovascular Research Building (CVRB) is a recently completed 232,000-sq-ft research facility located in the Mission Bay campus. One of the major design challenges was for the building to have the chilled water (CHW) system separated into two subsystems, critical and noncritical. The New Educational and Laboratory Building (NELB) at Los Angeles Mission Community College in Sylmar, Calif., is a three-story building of about 98,000 sq ft. The design challenge included meeting the air change rates called for in the OPR while using VAV fume hoods and maintaining space pressure relationships.

English L.,Southland Industries | Sanvido V.,Southland Industries | Harrisberger D.,Southland Industries
HPAC Heating, Piping, AirConditioning Engineering | Year: 2011

Several methods that need to be adopted for energy savings in an existing building are presented. The methods include adjusting a building-automation program, addressing years of deferred maintenance, recommissioning existing mechanical systems, and training in-house maintenance staff. Overriding the system or lowering the thermostat setting eventually causes an occupant to stop complaining about the cold and start complaining about the heat. Building automation has evolved significantly, requiring systems to be maintained carefully and reprogrammed and updated periodically to take advantage of the innovative technology. A team is formed to develop an energy approach after examining the situation and determining the areas for potential energy savings. Members of the team should include experienced personnel who can identify the root cause of energy waste and provide multiple solutions. The analysis should identify and prioritize deficiencies and outline the appropriate steps needed to correct them.

Becker T.,Kiewit University | Sanvido V.,Southland Industries | Kufahl G.,Iowa State University | Elston A.,Iowa State University | Woodard N.,Iowa State University
Practice Periodical on Structural Design and Construction | Year: 2014

Lean construction theory proposes a servant leadership model for project organizations in which the individuals who perform the physical work are supported by design engineers and project managers, acknowledging that value is only added in the construction process when materials are converted into improvements. The LastPlanner system of construction task planning and coordination proposes that trade foremen are in the best position to determine task durations, coordinate sequencing, and promise completion commitments. Consistent with lean thinking to involve trades in management, this paper focuses on the importance of specialty trade contractors and their foreman who supervise most of the physical construction work, especially in the commercial construction sector, by investigating the relationship between construction engineering and management education and specialty trade contractors. This paper promotes an increase of employment within specialty trade contractors by bachelor-level, construction engineering and management graduates by bringing attention to the significant opportunities available for students with specialty trade contractors, both as field supervisors and project managers. A survey of 148 construction students at five universities and 60 industry professionals representing 34 specialty trade contractors shows that additional exposure to specialty trade contractors can result in greater employment opportunities within this vital component of the construction industry. This research also reveals that construction management and construction engineering students have an interest in employment with specialty construction firms and that the specialty construction sector desires greater inclusions of academic content related to their work as part of university construction curricula. Furthermore, a road map of improvements is proposed that construction engineering and management programs could follow in order to encourage more of their students to seek future employment within the specialty contractor sector. © 2014 American Society of Civil Engineers.

Ford C.,Southland Industries | Stanfield S.,Southland Industries
HPAC Heating, Piping, AirConditioning Engineering | Year: 2011

The learning curve in innovation and the challenges of green HVAC systems in new construction and renovation is explored. Collaborating with owners and architects to understand their required ROT timeline enables contractors to identify cost-effective strategies and win support of innovative solutions. Collaboration is critical, and so engineers and construction teams should look for opportunities to achieve the same energy goals with the most cost-effective solutions. A documented schedule will provide the framework within which the project takes place. Short-term changes will be more easily accommodated if there are open channels of communication. As the systems installed in to- day's buildings increase in complexity, it is critical that maintenance personnel have the expertise and background knowledge of the installed systems to operate them at peak efficiency.

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