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Oklahoma Gothic


In Tulsa, a 180-foot-high steeple draws worshipers to a 3,500-person sanctuary that incorporates a professional theater-quality sound system.




Asbury United Methodist Church's 180-foot-high steeple is a new landmark on the east side of Tulsa, Okla. Visible for miles, it invites the curious to come face-to-face with Gothic-style architecture that is seldom seen in contemporary new church construction. Squint your eyes a little, and you might think you were southwest of Paris, and that was Chartres in the distance.

That's precisely the effect the congregation wanted to achieve in building its new church. Senior Pastor Dr. Tom Harrison says a crucial directive given to designers of the 242,000-sf facility, which opened last February, was that it be visible and open to the community. "We made it clear that we wanted the building to look like a traditional church," Harrison says.

Attracting new members is the first step in fulfilling Asbury's mission, "Belong, Believe, and Become." The fast-growing congregation now numbers 6,800.

Asbury's previous building was also Gothic in style, with extensive exterior stonework, but its sanctuary could accommodate only 1,100, says Daryl Whitmer, SVP of Sparks Architecture, Engineering and Interiors, the Tulsa firm that designed the new facility. The church was so pressed for elbowroom that it had to rent space in a shopping center across street.

Shortly after Sparks was hired, Tulsa-based general contractor Flintco was retained as construction manager to build what would be the company's largest church project to date. Asbury initially envisioned a 350,000-sf program with a budget of $44 million, but the church was able to raise only $18 million.

So the team went to work developing a plan that would meet the church's needs at a price it could afford. "Like any other owner, they wanted the most they could get for their money," says Lowell Heck, Flintco's VP of operations.

The church wanted to use brick to clad the exterior, but found that an exterior insulation and finish system (EIFS) provided a savings of $8/sf. Brick was used, however, at the church's five entrances, for a three-foot-high wainscoat that extends around the perimeter of the building at a level which might come in contact with landscaping or maintenance equipment, and at corners of gables. EIFS was used to create eyebrow accents in conjunction with cast stone employed around entrances and some of the Gothic windows, and it closely blended with the color of the brick and the stone, says Viviana Varnado, the project's architectural designer.

Additional savings were achieved by installing 400,000 sf of cement board for walls that are expected to be removed for future expansion.

Ceramic tile was specified in lieu of stone flooring for entrance areas, and artificial stone was used to clad concrete columns in the 6,000 sf gathering area at the main entrance.

A pre-engineered metal building was specified to house the 8,200-sf gymnasium. Asbury is contemplating another fund drive next year to finance further expansion.

Senior Pastor Harrison says some thought was given to purchasing the shopping center across the street, razing it, and building the new church there, but the benefactors who provided most of the funds for the purchase of the 36 acres on which the new church sits nixed that idea.

Because the new church is much larger overall than its predecessor, with a much higher steeple, distinctive Gothic features, such as pointed arches, could be accentuated, Varnado says.

The interior of the new 3,500-seat sanctuary was modeled on that of the Germantown (Tenn.) Baptist Church. Two rear-projection screens, 14 feet high and 18 feet wide, on either side of the pulpit enhance visual communication. The church also has a state-of-the-art sound system.

Pastor Harrison says the distances within Asbury United's fan-shaped sanctuary are short enough that he can identify people seated in the balcony from the pulpit, a distance of about 100 ft.

Asbury also has an adjacent chapel that is used for smaller gatherings. The chapel was designed to resemble the old building's sanctuary, even incorporating stained glass from the old church.

Asbury has allocated 8,000 sf to administrative space for its staff of about 70, which includes many part-time positions. A number of staff members are involved with preschool and children's programs, each of which occupies 25,000 sf.

The initial plan would have provided interim office space in the balcony area, with this space to be converted to balconies. Fortunately, a benefactor provided funds to make this unnecessary.

"We've done things here that we never could have done in the previous building," says Pastor Harrison. "We've been incredibly pleased with the design." His biggest disappointment: The church could afford to build only one gymnasium instead of the three that it had planned. Its basketball program attracts nearly 500 players.

 

Project Summary

Asbury United Methodist Church Tulsa, Okla.

Building team

Owner: Asbury United Methodist Church

Architect and interior architect: Sparks

Structural/mechanical/electrical engineer: Snowden Engineering

Construction manager: Flintco Inc.

General information

Area: 242,000 gross sf

Number of floors: Two

Construction time: March 2002 to February 2004

Delivery method: Construction management

Project suppliers

Curtain wall, exterior glazing: Kawneer

EIF system: Sto

Roof system: Tamco

Elevators: Otis

Heating and refrigeration equipment: Carrier

Energy management controls: Johnson Controls

Plumbing fixtures: Crane, Delta

Wall/floor tile: Ceramic International, American Olean, Dal-Tile

Carpet, ceilings: USG

Electronic acoustic enhancement system: Level Control Systems

Construction Costs

General conditions$2,063,645
Earthwork/utilities/paving3,260,427
Concrete1,867,589
Masonry1,350,605
Metals4,422,818
Wood and plastics1,147,484
Thermal and moisture protection1,975,281
Doors and windows1,144,383
Finishes4,544,590
Specialties99,444
Equipment*55,241
Special construction (metal building)161,664
Conveying systems65,627
Mechanical4,509,485
Electrical**1,980,941
TOTAL$28,649,226
* Audio-visual systems, kitchen equipment, pews, and organ furnished by owner
** Fire alarm/security system furnished by owner

Church benefits from an enhanced sound system

Tulsa's Asbury United Methodist is one of only a few worship facilities to have a sound system that electronically enhances the auditorium's acoustics. In addition to a typical sound reinforcement system used to amplify speech and music, it has a dedicated electronic acoustic enhancement system.

Although application of the technology is not new to concert halls and theaters, a church installation is somewhat unusual, says David Marsh, principal with the church's acoustical consultant, Pelton Marsh Kinsella, Dallas.

The system simulates reverberation — the sustaining of sound caused by sound waves that are reflected from internal surfaces in the performance space. Reverberation time is the interval it takes for sound to drop to a level 60 decibels below its starting level once the originating sound has been stopped.

Optimum reverberation times vary according to the purpose and size of a space. For a concert hall, it is about two seconds; for an opera theater, 1.3–1.8 seconds; and for the spoken word, one second or less. Asbury's mix of worship styles — from traditional to contemporary — has totally different acoustical requirements.

The timing, direction, and strength of early reflections (within the first tenth of a second after the sound is produced) are extremely important to sound quality — especially the reflections from side walls, according to Marsh. Asbury's wide, fan-shaped sanctuary adds to the difficulty of getting natural sound reflections from side walls. The electronic acoustic enhancement system is able to control these variables.

"Allowing the left and right ears to hear different reverberations that arrive at slightly different times gives the sound a spaciousness that enhances singing and music," says Jerrold Stevens, project manager with Pelton Marsh Kinsella.

In Asbury's multi-purpose sanctuary, sound is delivered as speech, contemporary music, and organ music, further complicating the picture.

"What you want acoustically for speech or contemporary music is radically different from what you want for a pipe organ, and what you want for choir and orchestra is in between," Stevens says. "In order to have the most flexibility and have it work well, variable acoustics are needed."

Traditionally, these acoustical modifications have been accomplished by mechanical means, such as installing curtains or adjustable panels to change the overall volume of the space. But curtains are not always effective; changing interior volumes can be expensive. It can also make it difficult to effect rapid changes in sound quality.

Asbury's electronic system with digital processor has a multitude of outlets. With the push of a button, a technician can completely change the acoustical character of a space. "Electronics enables us to create variable reverberation as well as reflections from any direction with any time of arrival, any strength, and any spectral characteristics," Marsh says.

Asbury's sanctuary has 80 loudspeakers located across the ceilings, along the walls, and on the face of the balcony. As a result, sound reflections are perceived as coming from all around rather than from a specific location.

Suspended from the ceiling and various wall surfaces are 24 tiny microphones that pick up sound for redistribution to the loudspeakers. A touch of a computer screen instantaneously changes the reverberation time and reflection patterns, depending on the type of performance.

The cost of this type of system varies widely, depending on the size of the space and the number of zones required, according to Stevens. The installed cost of Asbury's system was about $280,000. Components were supplied by Level Control Systems, Sierra Madre, Calif., and the system installation was by Ford Audio Video, Oklahoma City.


  

© 2008, Reed Business Information, a division of Reed Elsevier Inc. All Rights Reserved.




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