Applicable Restraint Schemes
Note: Equipment weight should be considered when selecting specific restraint products. See manufacturers guidelines for restraint capacities.
1. Universal Restraining Bar with Straps Connecting to Equipment with Clips or Plates
Bracing Description:
Details and Technical Specifications:
See schematic for Universal Restraining Bar: http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1155
Illustrations and Pictures:
Image from Essrig Taylor Construction.
Critical Limitations:
Check with manufacturer for weight limits.
2. Universal Restraining Bar with Straps Connecting to Equipment with Screws
Bracing Description:
Details and Technical Specifications:
See schematic for Universal Restraining Bar: http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1154
Illustrations and Pictures:
No photo at this time.
Critical Limitations:
Check with manufacturer for weight limits.
3. Universal Restraining Bar with Straps that Loop Around the Equipment
Bracing Description:
Details and Technical Specifications:
See schematic for Universal Restraining Bar: http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1154
Illustrations and Pictures:
Critical Limitations:
Check with manufacturer for weight limits.
A. Non-Adhesive Rubber Bearing Pads
Bracing Description:
Non-Adhesive Rubber Bearing Pads
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Picture Source: http://www.worksafetech.com/
Critical Limitations:
See manufacturer for product weight limits. Will not restrain equipment that will tend to tip over.
Bearing Pads should not be used on equipment with a high center of gravity, nor should they be used as the only means of restraint for large equipment. For large equipment, bearing pads can be used in conjunction with straps or other bracing methods.
Optics tables provide an isolation system that will mostly protect the equipment on top, therefore, bearing pads in these conditions are considered to provide enhanced protection.
Items may be self installed. No outside installation assistance necessary.
B. Adhesive Rubber Bearing Pads
Bracing Description:
Adhesive Rubber Bearing Pads
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Picture Sources: http://www.worksafetech.com/ and http://www.quakeholdindustrial.com
Critical Limitations:
See manufacturer for product weight limits. Adhesive product requires replacement after a given time. See product information for shelf life of adhesive.
In general, schemes that rely upon adhesive products are rated as minimal protection. If a system uses an adhesive solution and is properly installed and well maintained, it can provide enhanced protection.
Optics tables provide an isolation system that will mostly protect the equipment on top, therefore, bearing pads in these conditions are considered to provide enhanced protection.
Items may be self installed. No outside installation assistance necessary.
C. Adhesive clips
Bracing Description:
Adhere clips to the desktop with a strap running over the base of the equipment, or with clips adhered to the equipment and straps connecting to clips on desktop.
Details and Technical Specifications:
See D20 Benchtop Heavy Equipment http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1140
Illustrations and Pictures:
Critical Limitations:
See manufacturer for product weight limits for straps, clips and adhesive. Adhesive product requires replacement after a given time. See product information for shelf life of adhesive.
In general, schemes that rely upon adhesive products are rated as minimal protection. If a system uses an adhesive solution and is properly installed and well maintained, it can provide enhanced protection.
Any straps connecting equipment to the wall or desktop must be kept tight in order to provide enhanced protection.
Items may be self installed. No outside installation assistance necessary.
D. Straps running over the equipment and screwed into the desktop
Bracing Description:
Straps running over the equipment and screwed into the desktop
Details and Technical Specifications:
See D20 Benchtop Heavy Equipment http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1140
Illustrations and Pictures:
Critical Limitations:
See manufacturer for product weight limits.
Any straps connecting equipment to the wall or desktop must be kept tight in order to provide enhanced protection.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to ten units can be installed in approximately two hours. Restraining multiple units at one time will decrease the per unit installation cost.
E. A bent bar placed over the equipment base and screwed into the desktop
Bracing Description:
A bent bar placed over the equipment base and screwed into the desktop
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Critical Limitations:
Requires specialized manufacturing of bent bar systems.
Minimum charge from SU Labor Shop is $80/hour plus materials. If materials supplied by department installation should take between 30 and 60 minutes. If materials supplied by labor shop, one unit could take up to two hours depending on scoping, research, measurements, machining, and installation. Restraining multiple units at one time will decrease the per unit installation cost.
F. Angles screwed into the equipment and desktop
Bracing Description:
Angles screwed into the equipment and desktop
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
No photo available at this time
Critical Limitations:
See manufacturer for product weight limits.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to six units can be installed in approximately two hours depending on the amount of furniture moving involved. Restraining multiple units at one time will decrease the per unit installation cost.
G: Uni-Strut System with straps connecting to equipment using adhered clips
Bracing Description:
Uni-Strut System with straps connecting to equipment using adhered clips
Details and Technical Specifications:
See D12 Residential Style Refrigerator http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1135
D13 Large Refrigerator/Freezer/Incubator http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1136
D21 Benchtop Heavy Equipment (at wall) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1142
D22 Benchtop Heavy Equipment http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1141 - refer to detail B3a
D24 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1144
D26 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1146
Illustrations and Pictures:
Critical Limitations:
See manufacturer for product weight limits. Adhesive product requires replacement after a given time. See product information for shelf life of adhesive.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates two to three hours for measuring, cutting, furniture moving, and installation. Three to four units can be installed in approximately three hours based on accessibility. Installing/Restraining multiple units at one time will decrease the per unit installation cost.
H. Uni-Strut System with straps connecting to the equipment using anchors screwed into the equipment
Bracing Description:
Uni-Strut System with straps connecting to the equipment using anchors screwed into the equipment
Details and Technical Specifications:
See See D12 Residential Style Refrigerator http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1135
D13 Large Refrigerator/Freezer/Incubator http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1136
D21 Benchtop Heavy Equipment (at wall) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1142
D22 Benchtop Heavy Equipment http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1141 - refer to detail B3a
D24 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1144
D26 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1146
Illustrations and Pictures:
Critical Limitations:
See manufacturer for product weight limits.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates two to three hours for measuring, cutting, furniture moving, and installation. Three to four units can be installed in approximately three hours based on accessibility. Installing/Restraining multiple units at one time will decrease the per unit installation cost.
I. Uni-Strut System with a single strap looping around the equipment
Bracing Description:
Uni-Strut System with a single strap looping around the equipment
Details and Technical Specifications:
See D12 Residential Style Refrigerator http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1135
D13 Large Refrigerator/Freezer/Incubator http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1136
D22 Benchtop Heavy Equipment http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1141 - refer to detail B3b
D24 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1144
D26 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1146
Illustrations and Pictures:
Picture Sources: http://unistrut.com/ and http://www.worksafetech.com/
Critical Limitations:
See manufacturer for product weight limits.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates two to three hours for measuring, cutting, furniture moving, and installation. Three to four units can be installed in approximately three hours based on accessibility. Installing/Restraining multiple units at one time will decrease the per unit installation cost.
J. Mounts anchored directly into the wall, connected with straps to adhered clips on the equipment
Bracing Description:
Mounts anchored directly into the wall, connected with straps to adhered clips on the equipment
Details and Technical Specifications:
See D25 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1145
Illustrations and Pictures:
Critical Limitations:
See manufacturer for product weight limits. Adhesive product requires replacement after a given time. See product information for shelf life of adhesive.
In general, schemes that rely upon adhesive products are rated as minimal protection. If a system uses an adhesive solution and is properly installed and well maintained, it can provide enhanced protection.
Any straps connecting equipment to the wall or desktop must be kept tight in order to provide enhanced protection.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to four units can be installed in approximately two hours. Restraining multiple units at one time will decrease the per unit installation cost.
K. Mounts anchored directly into the wall, connected with straps to screwed anchors on the equipment
Bracing Description:
Mounts anchored directly into the wall, connected with straps to screwed anchors on the equipment
Details and Technical Specifications:
See D25 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1145
Illustrations and Pictures:
Critical Limitations:
See manufacturer for product weight limits.
Any straps connecting equipment to the wall or desktop must be kept tight in order to provide enhanced protection.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to four units can be installed in approximately two hours. Restraining multiple units at one time will decrease the per unit installation cost.
L. Mounts anchored directly into the wall with a connected strap looped around the equipment
Bracing Description:
Mounts anchored directly into the wall with a connected strap looped around the equipment
Details and Technical Specifications:
See D22 Benchtop Heavy Equipment http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1141 - refer to detail B3b
D23 Computer Monitor (at wall) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1143 - refer to detail B3c
D25 Typical Restraint Types (at walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1145
Illustrations and Pictures:
Picture Source: http://www.worksafetech.com/
Critical Limitations:
See manufacturer for product weight limits.
Loose connections such as straps looped around equipment will provide enhanced protection only if the straps are attached securely and kept tight enough to prevent unwanted motion. Loose connections will allow equipment to move or vibrate during an earthquake and will provide only minimal protection.
Any straps connecting equipment to the wall or desktop must be kept tight in order to provide enhanced protection.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to four units can be installed in approximately two hours. Restraining multiple units at one time will decrease the per unit installation cost.
M. For stacked equipment, clips are adhered to the equipment below and stacked equipment with a strap connecting the two pieces
Bracing Description:
For stacked equipment, clips are adhered to the equipment below and stacked equipment with a strap connecting the two pieces
Details and Technical Specifications:
See D23 Computer Monitor (at wall) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1143 - refer to detail B4
Illustrations and Pictures:
Critical Limitations:
See manufacturer for product weight limits for straps, clips and adhesive. Adhesive product requires replacement after a given time. See product information for shelf life of adhesive.
In general, schemes that rely upon adhesive products are rated as minimal protection. If a system uses an adhesive solution and is properly installed and well maintained, it can provide enhanced protection.
Any straps connecting equipment to the wall or desktop must be kept tight in order to provide enhanced protection.
Items may be self installed. No outside installation assistance necessary.
N. Raised Floor Brace Cable anchored to structural floor and connected to plate on equipment by a cable
Bracing Description:
Raided Floor Brace Cable anchored to structural floor and connected to plate on equipment by a cable
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates one and one half to two hours to anchor all four corners on one item. Two items can be restrained in approximately three hours. Restraining multiple units at one time will decrease the per unit installation cost. Note: SU Labor Shop may substitute long L brackets for the plate and cable shown.
O. Use angles to anchor equipment directly to the structural slab
Bracing Description:
Use angles to anchor equipment directly to the structural slab
Details and Technical Specifications:
See D17 Bookcases (floor to floor restraints) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1137
D18 Bookcases (floor to ceiling restraints) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1138
Illustrations and Pictures:
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates one and one half to two hours to anchor all four corners on one item. Two items can be restrained in approximately three hours. Restraining multiple units at one time will decrease the per unit installation cost. Note: SU Labor Shop may substitute long L brackets for the plate and cable shown.
P. Anchor a plate to structural slab and another to equipment.
Bracing Description:
Anchor a plate to structural slab and another to equipment. Connect plates with releasable link.
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Picture Source: Q-Brace Program - University of California, Berkley
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to four units can be installed in approximately two hours. Restraining multiple units at one time will decrease the per unit installation cost.
Q. Anchor equipment to wall with angles screwed into equipment and mounted to wall
Bracing Description:
Anchor equipment to wall with angles screwed into equipment and mounted to wall.
Details and Technical Specifications:
See D17 Bookcases (floor to floor restraints) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1137
D18 Bookcases (floor to ceiling restraints) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1138
D19 Bookshelves/Cabinets (adjacent to walls) http://www.stanford.edu/dept/EHS/cgi-bin/protectsu/?q=node/1139
Illustrations and Pictures:
Picture Source: Q-Brace Program - University of California, Berkley
Critical Limitations:
Angles anchored into wood or stud walls must be attached directly to the wood or metal stud, not to the sheet rock only.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates four brackets to restrain one unit can be installed in approximately one and one half hours. Restraining multiple units at one time will decrease the per unit installation cost.
R. Group equipment to surrounding equipment with bars, angles or straps
Bracing Description:
Group equipment to surrounding equipment with bars, angles or straps
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Picture Source: Q-Brace Program - University of California, Berkley
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to four units can be restrained as a unit in approximately one and one half to two hours. Restraining multiple units at one time will decrease the per unit installation cost.
S. Shelf Ledges
Bracing Description:
Ledges are added to shelves, diagonal slots can be used to allow ledges to be lowered and raised for easier access to contents
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Critical Limitations:
Ledge height must be appropriate for contents being restrained. The ledge height should be higher than the center of gravity of the restrained contents for top heavy objects such as bottles.
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates two hours for measuring, cutting, polishing, and installation. Installing multiple units at one time will decrease the per unit installation cost. Note: SU Labor Shop may substitute a permanent 2” clear poly carbonate see-thru shelf lip.
T. Sliding glass doors
Bracing Description:
Sliding glass doors
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Custom installation required, get quotes.
U. Elastic cord, net or metal bracket to restraints
Bracing Description:
Elastic cord, net or metal bracket to restraints
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Picture Sources:
http://store.shopreadyamerica.com/index.html
http://www.quakeholdindustrial.com
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates up to eight elastic units or six metal bars can be installed in approximately one hour. Nets may be self installed. Installing multiple units at one time will decrease the per unit installation cost.
V. Cabinet door locking devices
Bracing Description:
Cabinet door locking devices
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Picture Source: http://www.quakeholdindustrial.com
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Some types of locking devices can be self installed. For those which require installation assistance, pricing will vary based on the type of application.
W. Custom table leg "cuff" bolted to floor
Bracing Description:
Custom table leg "cuff" bolted to floor
Illustrations and Pictures:
Details and Technical Specifications:
None at this time
Critical Limitations:
Minimum charge from SU Labor Shop is $80/hour plus materials. Labor Shop estimates one hour to anchor four corners/legs on one item. Restraining multiple units at one time will decrease the per unit installation cost.
X. Manufacturer Seismic Restraint
Bracing Description:
Manufacturer Seismic Restraint
Details and Technical Specifications:
None at this time
Illustrations and Pictures:
Critical Limitations:
Y. Uniform clips on wall to fit movable racks
Bracing Description:
Uniform clips on wall to fit movable racks
Details and Technical Specifications:
None at this time.
Illustrations and Pictures:
None at this time.
Critical Limitations:
None at this time.