Strong_Motion_Monitoring_Program_SOW.pdf

Strong Motion Monitoring Program Strong Motion Monitoring Equipment

The Bureau of Reclamation (Reclamation) has a requirement to procure ten (10) accelerographs, ten (10) accelerometers, and ten (10) digitizers for recording of ground motions from earthquakes that may impact Reclamation facilities. These recorders will enable Reclamation to quantify on-site peak ground accelerations from a seismic event providing critical information for dam managers and local engineers to determine if an immediate site inspection response protocol has to be implemented; And provide continuous recorded waveforms for assessment of structure’s natural modes, verification of numerical models, evaluation of local attenuation properties, and other applications related to the quantification of engineering properties of Reclamation facilities. The recorders procured must assimilate into the existing Strong Motion Monitoring Program Realtime Data Acquisition System.

Accelerograph- Titan SMA Brand Name or Equal Sensor

• Type: Triaxial force balance accelerometers, orthogonally oriented, internal

• Full scale range: Minimum user selectable range at ±0.5g, ±1g, ±2g or ±4g

• Minimum Bandwidth: DC to 200 Hz

• Dynamic range: 155 dB+

• Offset: zeroed to within ±0.005g

• Hysteresis: <±0.005g

• Cross-axis coupling: < 0.5% total

Digitizer

• Channels: 3 24-bit sensor channels

• Dynamic range: Minimum 145 dB at 100 sps

• Primary sample rates: 100, 200, 500, 1000 sps

• Decimation Filter: Selectable causal or non-causal

• Acquisition modes: Continuous and triggered

• Digital Filters: User-configurable low-pass and high-pass

• Orientation Correction: Onboard 3-D data rotation for correcting azimuth and tilt

• Control lines: Lock/unlock, mass center and calibration

• Calibration & Test: Sine, Step, and White noise

• Firmware upgrade/update: local & remotely performed; failure - revert to last viable FW version

Trigger

• Trigger selection: Independently selected for each channel Internal

• Type: Bandpassed STA/LTA or threshold

• Trigger voting: User set votes assigned by channel

• Threshold Trigger: Selectable from -.01% to 100% of full scale

Timing

• Type: GNSS, PTP, or NTP

• Accuracy: <1 microseconds of UTC with GPS/GNSS locked

Data Storage

• Data storage: 8 GB flash memory

• Removable Media: External memory card 64GB, USB drive

• File format: MiniSEED

Data Handling:

• Data Retrieval: Direct download via Ethernet

• Response Metadata: Generate and download full digitizer/sensor response files in RESP, Dataless SEED, or StationXML format

Communications:

• Ethernet interface: 10/100 Base-T

• IP address: User configurable static

• Protocols: Real-time data streaming via SEEDlink; ≤ 512 bytes/packet

Power Requirements:

• Consumption: <3W operational

• Voltage range: 9-32 VDC

• Protections: Reverse voltage, over/under voltage, self-resettable fuses

• Isolation: Power supply isolated from signal ground

• System reset: Restart local (hard) or remote

• Protection:

• Reverse-voltage and over-/under-voltage protected

• Self-resetting over-current protection

Physical:

• Mounting: single bolt, 4 adjustable feet, 1 stationary foot, air bubble leveling

• Max Dimensions: 7” x 7” x 4” (18cm x 18 cm x 10.5cm)

• Weight: <4 lbs. (1.9 kg)

• Cable Ports: cable connections are made on vertical sides of case.

Environmental:

• Temperature range: -20° to 60°C operational

• Humidity: 0-100% RH (non-condensing)

• Enclosure rating: minimum IP67

Accessories:

• Cable, Power

• Cable, Ethernet

• Cable, GNSS Antenna

• GNSS Antenna with Mounting Bracket

• 64GB SD External Media Card

Accelerometer- Titan – Brand Name or Equal Sensor:

• Topology: Triaxial, horizontal-vertical

• Feedback: Force balance with capacitive displacement transducer

• Centering: Electronic offset zeroing via user interface or control line

• Full-scale Range: ±4g, ±2g, ±1g, ±0.5g, and ±0.25g (peak)

• Sensitivity accuracy: ±0.5%

• Bandwidth: DC to 430 Hz (-3 dB point)

• Dynamic Range: (Integrated RMS)

• 166 dB @ 1 Hz over 1 Hz bandwidth

• 155 dB, 3 to 30 Hz

• Offset: Electronically zeroed to within ±0.005g

• Non-linearity: < 0.015% total non-linearity

• Hysteresis: < 0.005% of full scale

• Cross-axis Sensitivity: < 0.5% total

Hardware:

• Connectors: MIL-C-26482G Series 1, 14-pin, shell size 12

• Acceleration Output: 40 Vpp differential

• Output Impedance: 2 x 100 Ω

• Calibration Input: Single voltage input, all channels enabled together

• Serial Port: 9600 Baud RS-232 compatible

Power:

• Supply Voltage: 9 to 36 V DC isolated input

• Power Consumption: 1.1 W typical quiescent

• Protection: Reverse-voltage and over-/undervoltage protected

• Isolation: Supply power is isolated from signal ground

Environmental:

• Leveling: Integrated bubble level

• Cable Ports: cable connections are made on vertical sides of case.

• Adjustable locking leveling screws

• Multiple leveling feet configuration options

• Max Dimensions: 7” x 7” x 4” (18cm x 18 cm x 10.5cm)

• Operating Temperature: -20°C to +60°C

• Humidity: 0 to 100%

• Ingress protection: Rated to IP68 at 2 m for 72 hours

Digitizer- Centaur:

• Channels: 6 channels

• Sample Rates: User-selectable sample rates up to 10000 sps on high-resolution channels

• Resolution User-selectable 24-bit up to 32-bit

• Dynamic Range: 14:6 dB

• Communications Web-based graphical UI, 10/100 Base-T Ethernet

• Recording 8 GB internal storage; External SD card continuous

• Streaming Formats: SeedLink

• Data Types Waveform, state-of-health, event/trigger data, raw TCP streams (ex. BINEX), data products

• Power Consumption: no more than 1.2 W

• Max Dimensions: 8” x 8” x 4” (20.5cm x 20.5cm x 10.5cm)

• Weight 2.2 kg (2.4 kg for models CTR5-6A/S, CTR5-6AS/H)

• Operating Temperature –20°C to +70°C (Standard unit) / –45°C to +70°C (Polar certified unit)

• Environmental Rating IP68

• Timing Accuracy <5 μsec (GNSS Always On or PTP)

• Additional Features Orientation correction for azimuth & tilt, event processing, on-board calibration

Accessories:

• 64GB SD External Media Card

• 32ft (10M) Brand Name or Equal -Titan to Centaur connection cable

Delivery:

• Delivery of procured products within 90 days after award.

Denver Federal Center 6th Avenue & Kipling Street Building 67, Entrance E3, Room 165 Bureau of Reclamation-DO Denver, CO 80225-0007

Quote Submittal Requirements:

Submission of offers. Quotations shall be submitted electronically through email. As a minimum, quotations must show -

(1) The solicitation number and/or title;

(2) Company name, DUNS, and contact information of the offeror;

(3) Price and any discount terms; Offers shall complete the Price Schedule B attached.

(4) Technical Capability; Technical cut sheets, brochures, and product specs are required.

(5) Warranty; Vendor shall provide documentation describing all standard warranty terms and conditions.

(6) Lead Time for Delivery (FOBD) – within 90 days from award.

Incomplete submissions that lack the required information may be deemed non-responsive and excluded from award consideration.