CECO Concrete Construction

Advantages of Cast In Place Parking Structures

CECO Concrete Construction - Safety, Quality, Performance

Advantages of Cast-In-Place Parking Structures

CAST-IN-PLACE BENEFITS TO PARKING STRUCTURE CONSTRUCTION

Having built hundreds of parking structures throughout the United States over the past 98 years, CECO understands the requirements of parking structure construction and is prepared to implement the solutions to ensure that the project is completed to a high degree of quality, within schedule and at a competitive cost.

Benefits of CECOs cast-in-place parking structures are as follow:

PROJECT BENEFIT - COMPETITIVE COST

An adept cast-in-place builder will often be able to deliver a structure of superior quality to a precast option for the same or lessor budget.

When analyzing costs, make sure to include the following items that are often overlooked:

Foundations Equivalent durability measures topping slab, additives Skin exterior treatment Long term maintenance costs of joints, connections, bird droppings, etc. Slab on grade Caulking at Precast Joints CIP provides more parking per SF CIP requires less lighting - lower initial cost, lower cost of electricity over time

Many designers support the aforementioned:

Initial costs are typically fairly even

- Thomas Butcher, Walker Parking Consultants

It has been our experience that preliminary projected savings by precast double-tee systems may not be realized in the finished project.

- Ron Saxton, International Parking Design

With nearly 100 years of experience, CECO has the expertise and experience to work with the project team to value engineer the project, suggesting formwork and structural systems that will allow the project team to complete parking structures within budget.

$

CE

CO

CA

ST-IN

-PLA

CE

BE

NE

FITS

CECO Concrete Construction - Safety, Quality, Performance

Advantages of Cast-In-Place Parking Structures

PROJECT BENEFIT - TIMELY EXECUTION

With CECOs cast-in-place solution, star time from NTP decreases by up to 10 weeks as there is no lead time for fabrication. This not only expedites project delivery, but provides the owner better cash flow as there is no up-front cost for fabrication - you pay as you build.

CECOs depth of experience with preconstruction and construction processes allows us to value engineer what our competitors cannot - saving projects time and money. We have the manpower and resources to dedicate to this project to ensure completion within the time frame established by project stakeholders, and are prepared to implement a schedule that will allow for project completion within the time frame of a precast option.

PROJECT BENEFIT - NO LEAKAGE

CECOs cast-in-place solution will prevent the heavy leaking common with precast structures increasing the quality of the parking experience for the owner and/or the owners customers.

PROJECT BENEFIT - BETTER DRAINAGE

Our cast-in-place solution allows the forming of floors for proper overall drainage. This is much more efficient than trying to warp precast tees and compensate for tee camber.

Time to Start from NTP

Steel 16-26

Precast 8-12

Concrete 2-4

0 5 10 15 20 25 30

Weeks

CE

CO

CA

ST-IN

-PLA

CE

BE

NE

FITS

CECO Concrete Construction - Safety, Quality, Performance

Advantages of Cast-In-Place Parking StructuresC

EC

O C

AS

T-IN-P

LAC

E B

EN

EFITS

PROJECT BENEFIT - ADEQUATE LIGHTING

The wider spans of CECOs cast-in-place solution allow for more lighting from fewer fixtures and better overall light distribution. This not only increases safety and visibility of signage, but reduces potentially high initial and operational costs associated with lighting a precast structure.

Dark Pre-Cast Option

CECO Cast-in-Place Solution

PROJECT BENEFIT - PUBLIC SAFETY AND SECURITY

Open bays with CECOs cast-in-place solution provide for more open space and better lighting, increasing the security of the parking public and their vehicles.

Dark Confined Areas of Precast Option Open, Safe CECO Cast-in-Place Solution

CECO Concrete Construction - Safety, Quality, Performance

Advantages of Cast-In-Place Parking Structures

PROJECT BENEFIT - LOW OPERATION AND MAINTENANCE COSTS

With CECOs cast-in-place solution, the project owner will not incur costly and timely annual maintenance common of precast options.

Approximately 30% - 50% of all joints must be re-placed in a precast garage each 3-5 years, adding time, cost and hassle. Additionally, pre-cast structures create many areas for birds to nest, leading to more maintenance cost and an uncomfortable environment for the parking public. CECOs cast-in-place monolith-ic structure has far fewer joints requiring much less maintenance.

Precast Option Damage

Precast Parking Structure Maintenance Information:

Precast Joints (Cast-in-place has approximately 5% of the number of joints as precast):

Average life 3 to 5 years Typically 30 to 50% of all joints are affected Process includes: Routing, cleaning, replacing Cost are typically $4.00/linear foot

What if its Welded, not Bolted?

Problem occurs at the beam/double-tee connection 50% of the area typically affected Repair cost is approximately $375/connection At 3-5 years, a typical deck of 100,000 SF+ would cost $200,000 and $300,000 to repair. Then, each year after that, the owner will spend between $50,000 to $100,000 in preventative maintenance

- Lee Popovich, Structural Preservation

Durability measures have improved such that I would expect on a garage designed and constructed now the expected maintenance cost difference would be $0.25-$0.30/sf per year.

- Bill Gmiterko, P.E., AGA Consulting, Inc.

(Based on Bills input, a 300,000 SF precast structure would cost $75,000.00 more per year than a cast-in-place structure in maintenance)

CE

CO

CA

ST-IN

-PLA

CE

BE

NE

FITSC

EC

O C

AS

T-IN-P

LAC

E B

EN

EFITS

CECO Concrete Construction - Safety, Quality, Performance

Advantages of Cast-In-Place Parking Structures

DENVER INTERNATIONAL AIRPORT CASE STUDY - PRECAST MAINTENANCE

10 Years of Maintenance on 13,000-car Structure:

DIA - Parking Structure Level 5 Moisture Protection, 2010 - $2,121,334: Provide concrete repairs and moisture protection for the DIA parking garage level 5 and other areas where indicated.

DIA - Parking Structure Moisture Protection Phase III, 2009 - $7,762,701: The project is to improve the service life of the parking structures and to add protection to the structures from moisture and de-icers. The majority of the work includes the removal and replacement of con- crete that is in poor condition, the resealing of horizontal and vertical surfaces to improve the resistance to moisture, resealing joint and improving the shear connections between the con- crete floor panels.

DIA - Parking Structure Moisture Protection Phase II, 2006 - $6,128,000: The project is to im- prove the service life of the parking structure by protecting the existing structure from moisture and de-icers. The major parts of the work include removing and replacing the concrete that is in poor condition, resealing horizontal and vertical surfaces to improve their resistance to moisture, resealing joints, and improving the shear connections between the concrete floor panels.

DIA - Parking Structure Moisture Protection Phase I, 2001 - $6,249,739: (No project description available, assuming it is identical to Phase II and III)

Total cost of DIA precast parking structure repairs and maintenance from 2000 to 2010:

$22,261,774, or $1,712.44 per space

(Construction was completed in 1995)

CE

CO

CA

ST-IN

-PLA

CE

BE

NE

FITS

CECO Concrete Construction - Safety, Quality, Performance

Advantages of Cast-In-Place Parking Structures

PROJECT BENEFIT - RIDE QUALITY

CECOs cast-in-place option will eliminate the annoying thump thump thump irregu-larities common of a precast structure due to the double t design of precast garages. CECOs cast-in-place parking structures have no joints to jostle your vehicle as you park.

PROJECT BENEFIT - HIGHER PERCEIVED CEILING

With CECOs cast-in-place solution, there is approximately 10.5 feet of space from the ceiling to the bottom of the slab. On precast options, there is about 8.5 ft to bottom of tee stems.

Precast - Low Ceiling Cast-in-place Ceiling

PROJECT BENEFIT - INCREASED VISIBILITY AND LESS SIGNAGE

With CECOs cast-in-place solution, shear walls can usually be avoided (shear walls in precast garages reduce visibility at cross aisles and increase material use), and there are no low double-tees. This not only saves initial cost, but creates a much more open, safe and more easily navigable environment for the parking public - better wayfinding.

Precast Signage Cast-in-place Signage

CE

CO

CA

ST-IN

-PLA

CE

BE

NE

FITS

CECO Concrete Construction - Safety, Quality, Performance

Advantages of Cast-In-Place Parking StructuresC

EC

O C

AS

T-IN-P

LAC

E B

EN

EFITS

PROJECT BENEFIT - SUSTAINABILITY

CECO understands the importance of sustainable building and presents a cast-in-place option that does not require joint and other sealants with potentially high VOC contents common of precast options. Additionally, the CECO cast-in-place solution does not require the timely

and costly maintenance of a precast or steel option.

General Sustainability of Cast-in-place Option:

Better performance and less maintenance longer lifecycle Reduces energy consumption and costs via less lighting Increased safety and security - More light and fewer walls than precast, safer environment, better visibility of structure and signage Increased user comfort - No bumpy ride, enclosed feeling, unsightly connections, more daylight via open scheme without shear walls Lower initial and operating costs

Cast-in-place Sustainability Related to LEED Certification:

Life cycle analysis can earn Innovation in Design (ID) credit Use recycled construction waste via reefball.org, bollards or barricades (MR 2.1 and 2.2) Use FSC formwork as part of total for FSC credit, or ID credit Use bio-based form release agent (like Biolube) for potential ID credit Cast-in-place always qualifies for local/regional materials (MR 5.1 and 5.2) No fireproofing or corrosion protection and fewer sealants with harmful VOCs (IAQ 4.1-4.3) Including CECO and other subcontractors in the sustainable solutions for environmental value analysis and early team charettes can earn ID point

PROJECT BENEFIT - SAFETY

Project safety is paramount to project success, and CECO has been leading the industry for nearly 100 years. Many of the safety devices and techniques developed by CECO have been adopted by the entire industry. From our pre-task planning and field training to our online Best Practic-es, CECO leaves nothing to chance. If safety is important to your project, there is no one better than CECO to have

on your team.7

Problem Areas

1. First support member not started 12 from end on hole

2. Sharing joints

3. Not cleating cover supports

4. Not installing toeboards