Statistics | hccset

Building Statistics

General Building Data

Building Name

Location

Building Occupant

Function Type

Size

Number of Stories

Dates of Construction

Building Cost

Project Delivery Method

Howard Community College, Science, Engineering & Technology Building

Columbia, Maryland

Howard Community College

Educational (Laboratories, Classrooms, and Offices)

144,786 square feet

4 above grade, 1 below

January 2015 - January 2017

$62,400,000

CM at Risk

Project Team

Owner

General Contractor

Architect

MEP Engineer

Structural Engineer

Lab Planning

Civil/Site Engineer

Geotechnical Engineer

Code Consultant

IT/AV/Acoustics

Cost Estimating

Lighting Design

Architecture

Design and Functional Components:

The Science, Engineering & Technology Building is designed to fulfill multiple education uses. A plan view of the building shows the breakdown of three main areas in the building: North Labs (blue), West Labs (green), East Offices and Classrooms (yellow). In the Eastern portion of the building, floors one and two are classrooms and floors two and three will be office spaces. The laboratory portion and the office and classroom portions are separated by an atrium space that allows for the end user to freely flow through the space. This open atrium space gives the end user the experience of a flowing river, which is portray by the multiple terrazzo colors at throughout the atrium.

Applicable Codes:

International Building Code/Local Amendments 2012
International Mechanical Code 2012
International Energy Code/Local Amendments 2011 (NFPA 70)
NFPA 1 Fire Code 2012
Howard County Fire Protection Code
National Standard Plumbing Code 2009
National Fuel Gas Code (NFPA 54) 2009
Maryland Accessibility Code Guidelines for Buildings and Facilities/ADAAG
USGBC LEED 2009 V3.0

Zoning:

Zoned Planned Office Research (POR)
Property Ref: Map 35, Plat 16125, Block 6, Parcel 47, District 5
Existing Land Use Area: Surface Parking
30’ min. setback from Campus Drive
50’ height limitation if set at minimum setback + 1’ in height per 2’ of setback above the minimum for max. 80’ height

Facade:

Storefront and curtainwall glazing encompasses nearly half of the exterior building façade. With the intent of achieving LEED silver certification, the storefront and curtainwall façade allows for large amounts of natural light to enter the building thus lessening the need for artificial lighting. The storefront areas in the building consist of 6-1/2” prefinished aluminum with 1” clear vision glazing, and the curtainwall consists of 7-1/2” prefinished aluminum system with 1” clear vision glazing. The remaining areas on the façade consist of metal panels and terra cotta panels.

Roofing:

Due to the different rooftop utilization areas, there are four different types of roofing systems. Roof types 1 and 2a both utilize TPO membrane roofing over a cover board, type 2b utilizes a 4” concrete topping slab above R-30 rigid insulation, and type 3 utilizes a decorative gravel ballast above TPO membrane roofing.

Sustainability Features

Large open atrium space throughout the core of the building, curtainwall, and storefront façade all allow for natural light to enrich the space. This further reduces the need for artificial lighting and energy use to power the lights.

Construction

Structural System

The structural system consists of a concrete foundation supporting a structural steel building with composite decking elevated slabs. The foundation system of this building consists of spread footings, concrete piers, and foundation walls. The foundation walls are located in the basement area, which is at the southern portion of the building. All foundation walls are 15” thick cast in place concrete. On the ground floor, there is a slab on grade that is placed at a 4.5” thick slab with welded wire reinforcement.

The structural steel is fasted to the foundation with the use of anchor rods and baseplates. Two crane locations were necessary to erect the steel with the crawler crane that was selected. The first location was at the North-East vestibule which allowed the erectors to set the entire Northern half of the building. The second crane location was at the South-East vestibule which allowed reach to the Southern half.

Once the structure is set the baseplates will be filled with a non-shrink grout. For floors two through four, a 3 ¼” lightweight concrete over 3” deep x 20 gage composite steel deck is utilized. Shear studs are welded through the decking to create the composite slab.

Mechanical System

With a large portion of the building consisting of laboratory spaces, the mechanical system is an extremely important aspect. There is one main mechanical room located in the basement, and there are six roof top units. Variable Air Volume Terminals (VAVs) are located throughout the building to ensure optimal thermal comfort for each space. The admin wing and dry laboratory spaces are cooled by two Dedicated Outside Air System (DOAS) units, and the wet labs are cooled by a Makeup Air Unit (MUA). The MUA is effective in the wet labs because the air is directly exhausted out of the building so it allows for fresh air to always be supplied to the space.

Electrical System

Power to the Science, Engineering & Technology Building is fed at 13.2 kVA and 600A through a 2” concrete encased raceway into the transformer. The transformer then powers the main distribution panel which feeds the rest of the building. Two main bus duct feed the lab wing and the office wing, respectively. There is an additional generator outside the tunnel ready to power the building if the main power goes out.

Fire Protection

Howard Community College, Science, Engineering, & Technology Building has a main fire pump room located in the basement. The water line that feed the fire pump is a 6” combined fire and domestic water service. This water line feeds a packaged fire pump assemble with a vertical inline jockey pump. All rooms are required to provide sprinkler heads 6” max from the wall on either side of the door side-lights. Spray fireproofing is applied to all concealed structural steel members, and intumescent paint is applied to all exposed structural steel members.

Transportation

Elevators and stairwells are utilized as the two main sources of transportation for the Science, Engineering, & Technology Building. There are two elevators used in the building: one in the west lab area, and one in the office area. Elevator 1, located in the west labs, is used as a service and passenger elevator. This elevator serves the basement through the penthouse. It has a rated load of 5000 lb. and a rated speed of 200 fpm. Since this elevator is used for service needs it has a larger platform size at 5’ 8” wide by 10’ 5” deep. Elevator 2, located in the office area, is used only as a passenger elevator. This elevator has a platform size of 6’ 6 ¾” wide by 5’ 6” deep with a rated load of 3500 lb. and a rated speed of 200 fpm.

Six stairwells are located throughout the building. Three of these stairwells span from the first floor to the fourth. The remaining three stairwells serve smaller heights. Stair 5 is located on the first floor at the atrium and allows the building occupants to walk up the atrium to the second floor, as well as, a close up view of the feature interior atrium wall. Stair 6 is an additional stairwell located on the fourth floor that allows students and teachers to access the telescope observation deck located on the roof.

Telecommunications

Telecommunications is a key package in a STEM building. Emergency Blue Phones are located on the site, through an indoor/outdoor rated CAT6 cable encased in conduit. The Blue Phones are powered through a 120V power connection. IP CCTV cameras are provided in two locations: on wall or in the ceiling. These cameras receive a CAT6 cable unless the camera run exceeds the mandated 100 meter limit for category cable. Any run that exceeds this limit shall be run with singlemode fiber and 2 conductor 18AWG cable instead. All overlapping cameras are required to be located at least 10’ apart to ensure optimal coverage. Any outdoor cameras are to have an additional 18AWG, 2-conductor cable pulled to them to provide for power for heaters and any PTZ requirements. Additionally, the building utilizes a Building Automation System (BAS).

Howard Community College felt the need to expand their STEM program to help fulfill the rapidly expanding program. In doing so, the decision to building a new Science, Engineering, & Technology Building was reached. Ayers, Saint, Gross was hired as the architect for the project, and they provided the final design for the building. The project delivery method for this building was a Construction Manager at Risk. The CM at Risk, Gilbane Building Company, signed a Guaranteed Maximum Price (GMP) contract with the owner. Gilbane then hired subcontractors to perform the work. Each subcontractor signed a lump sum contract with Gilbane.

The owner required Gilbane Building Company to acquire performance and payment bond for the full amount of the project. None of the subcontractors were contractually obligated to obtain any bonds because Gilbane also held a Contractor Default Insurance (CDI). The insurance program for this project is a Contractor Controlled Insurance Program which required each subcontractor to enroll in the CCIP before their work can begin.

The site is located on an active college campus so the site logistics is a very challenging aspect of this project. Throughout the day there are students and staff walking and driving through campus so delivery coordination is of utmost importance. There is very little room for material laydown on site and all delivery trucks must be fully backed into the site. There is no available parking on site for any of the contractors.