Best Practices in High Rise NY

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Best Practices in High-Rise

Construction

Tom Connors

April 23, 2012 – Times Square Marriott Marquis


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The NYC Department of Buildings is a registered Provider with The American Institute of Architects Continuing Education Systems (AIA/ CES). Credit earned on completion of this program will be reported to AIA/CES for

AIA

members.

Certificates

of

Completion

for

both

members

and

non

‐

AIA members are available upon request.

This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or constructed

to

be

an

approval

or

endorsement

by

the

AIA

of

any

material

of construction or any method or manner of handling, using, distributing, or dealing in any material or product.

Questions related to specific materials, methods, and services will be addressed

at

the

conclusion

of

this

presentation.


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This presentation is protected by US and International

Copyright laws. Reproduction, distribution, display and use of

the presentation

without

written

permission

of

the

speaker

is

prohibited.

©NYC Department of Buildings

Copyright Materials


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Course DescriptionThis course will give an overview of safe construction in New York City, which is regulated by the 2008 NYC Construction Codes to

ensure that

regulations

remain

up

‐to

‐date

with

evolving

safe

practices. The Department of Buildings is at the forefront of approving new materials and technology, enabling it to advance safe practices through education and specialized on‐site inspections with

ownership and

contractors.

Electronic visual examples will provide an understanding for the best and worst practices found on construction sites across the City. This

presentation will

allow

participants

to

incorporate

best

practices

in

future projects – while better enabling them to identify and mitigate risks that could pose safety threats to the public.


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BEST Practices in High-Rise

Construction

• Primary Strategies

• Alternative Strategies

• Demolition Strategies

• Major Projects Initiative


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Major Building Projects Filings Progression

0

100

200

300400

500

600

700

800

2008 2009 2010 2011 2012

196

306368

600

758


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Current Major Building Filing Types

140

22

398 17

New Buildings

Alt‐1 Conversions

Façade Repair

Demolitions


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Primary Strategies for SafeHigh-Rise Construction

• Standpipes

• Sidewalk Sheds

• Jersey Barriers

• Vertical Netting

• Horizontal Netting


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Standpipe Systems (3308.8.11)• Alt‐2 Filing

• Dedicated Power Supply

• Check Valves

• Locks & Caps

• Manual Air

Release

• Signage

• Audible Alarm Range:

• 15 dBa Above Ambient

• Noise


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Standpipe Systems

Air Gauge at Highest Point

Alarm Bell at Guardhouse


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• 300 lb. Live Load: Buildings > 100 ft

• 150 lb.

Live

Load:

Buildings

< 100

ft

Sidewalk Shed Requirements


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Lighting

at

8

Feet

Sidewalk Shed = Overhead

Protection for the Public

(3307.3.1)


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Lane Closure Utilizing

Jersey Barriers


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DOTCompliant

Lane Closure(3307.4.3)


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Highly Visible Barriers

= Safe Site


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60” Code Compliant

Vertical Netting (3308.1.1)


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Supported Scaffold with Full

Height Debris Netting (3308.1)


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Horizontal

Netting

(3308.1.2)


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• Horizontal Netting

• Interior Climbing

Crane

• Work Platforms

Examples of Good Practices


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Good and Bad Netting

Good

Bad

Ugly


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Poor Scaffold Netting Maintenance


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Alternative Strategies• Full Height Vertical

Netting

• Rigid Vertical Protection

• Static Horizontal Netting

• Partial Cocoon

systems

• Full Cocoon systems


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Full Height Vertical

Perimeter Netting


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Rigid Vertical

Perimeter Protection


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60” Rigid Vertical

Perimeter Protection


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Added Protection Affordedby Static Horizontal Netting


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StaticHorizontal

& Vertical

Safety

Netting


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Requirements for Cocoons•Compliance with Buildings Bulletin # 2010‐019

•Alteration Type

2 Application

•CCD‐1 Submittal to Engineering and Safety

•Operations Division

•Review of Application


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Partial Cocoon


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Cocoons of Solid Material


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Full Cocoon with FullHeight Vertical Netting


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Cocoons Loading

Platform


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Screen Cocoon withFull Height Netting


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Conventional Top Deck


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Full Cocoon Protectionon Top Deck


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Cocoon =Comfort & Safety


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Cocoon Being Raised


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Shear Wall FormingBehind a Cocoon


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• Slab to Slab

Vertical Nets

• Static Horizontal

Nets

• Cocoon System

• Sidewalk Shed

Full Public Protection


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Safe High-Rise

Construction=

A Long Life


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Safe Demolitions of Major Buildings


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Sidewalk Sheds


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Steel & ConcreteDemolition


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Full Mechanical

Demolition


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Dust Control (3306.9.3)


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Common Interior Demolition Hazards


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Unsafe Storage of

Demolition Debris


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Major Projects Initiative


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• Education

• Communication

• Cooperation

• Innovation

• Technology

• Expectations

Benefits of the Major Projects Initiative


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• Share Information

•

DOB Point Person

• On Site Meetings

• Joint Inspections

• Address Challenges


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Results of the Major Projects Initiative

0

10

20

30

40

50

60

70

8090

100

2009 2010 2011 2012

Amount of Full Stop Work Orders for Major Buildings


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27 Current Participants

Contact Engineering & Safety

Operations

Become a Partner in theMajor Projects Initiative


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Questions?This concludes the American Institute of Architects

Continuing Education

Systems

Course

NYC Department of Buildings

Buildings University AIA Point of Contact:

Allison Ginsburg [email protected]

212‐566‐4415

Documents

Best Practices in High Rise NY