Shake table test on transverse steel damper seismic system ...

A 1/35-scale model of the Sutong Bridge as illustrated in Fig. 2 was designed for the shake table test. Considering the feasibility and to ensure the quality of construction, micro concrete was used to substitute the prototype concrete, and the similarity factor of Young's modulus for concrete was designed as 0.3.

(PDF) Design and Performance of a Single Axis Shake Table ...

After preparing the complete instrumented model, the shake table i s operated to apply dynamic harmonic motion and behavior of the m odel is observed and analyze d through physical observations ...

Getting Node.js Testing and TDD Right | @RisingStack

2/14/2017· Making changes to a large codebase and making sure it works is a huge deal in software development. We've already talked about a few great features of Node.js testing before, and it is very important to emphasize how crucial it is to have your code tested before you release it to your users.

Preparing to Weather – Flat Finishes – Weathering …

4/27/2015· Preparing to Weather – Flat Finishes ... Shake the can thoroughly before use and spray above 50 degrees. Wash the model in a grease killing gentle detergent like Dawn or Ivory with a soft toothbrush or paint brush to remove all fingerprints and oils. Do …

Shake table test on transverse steel damper seismic …

Fig. 3 depicts the shake-table test system of the scale model. To monitor the seismic responses of the structure under seismic excitations, as illustrated in Fig. 2, the deck, bents and towers were

DIY Podcast: Failure Prevention Images | NASA

NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind.

Set Your Table for a Sweet and Sticky Earthquake Shake ...

Building Your Shake Table. A shake table is used to create motion with which you can test your sugar cube houses' response to shaking. For your shake table, you will try to imitate the pushing-and-pulling P-waves. Figure 3 shows the components of the shake table and how it is assembled.

Laboratory Solution • Basic concepts of preparing ...

ples illustrate the calculations for preparing solutions. If starting with a solid, use the following procedure: • Determine the mass in grams of one mole of solute, the molar mass, MM s. • Decide volume of solution required, in liters, V. • Decide molarity of solution required, …

Earthquake Engineers Shift Focus to Steel Collectors to ...

1/19/2018· Preparing for the Big Shake Test. There's a reason the three universities have continued working together. Lehigh has the largest structures lab in the United States, and UCSD is home to an outdoor shake table, the nation's largest. The shake table, with a movable platform driven by pressurized oil, simulates earthquake conditions on ...

NSF Award Search: Award#1624153 - RAPID: Large-Scale …

This Rapid Response Research (RAPID) project will investigate the seismic behavior of helical piles by means of shake table tests on model piles in the UC San Diego laminar soil box. Helical piles are deep foundation elements that look like, and are installed like, a large steel soil screw - they have a slender steel shaft with any number of ...

12 Teacher Tips for Writing Good Test Questions

Keep all your answers around the same length. If one answer is significantly longer or shorter than all the rest, it will likely be the best choice or an easy elimination. Try to write about the same amount for each answer option to avoid give away answers. Fill In the Blank Questions. There is a difference between recognition knowledge of a ...

Damping of Frame Structures: An Educational Shake Table …

Damping of Frame Structures: An Educational Shake Table Test. ... Due to an oversight in the original test setup, the model viscous wall had ... are preparing shake table experiment to validate ...

Acrylic Pour on a Table - Part 1 - YouTube

5/11/2018· Materials used: Artists loft flow acrylics Floetrol Water NO SILICONE Floetrol mix: 5 parts floetrol, 3 parts paint, 2 parts water ACRYLIC POUR ON A TABLE - ...

FIT TESTING PROCEDURES I - pesticideresources.org

and Health Division FIT TESTING PROCEDURES I 437-004-1041 I-29 Appendix A (5) Talking. The subject must talk out loud slowly and loud enough to be heard clearly by the test conductor. The subject can read from a prepared text such as the Rainbow Passage, count backward from 100, or recite a memorized poem or song.

Shake It Up - Seismic Engineering 4 of 4 - CTE Online

Students will work in groups of four to make a shake table to test their prototype buildings. You will need to make one in advance to use as a teacher model. Materials for each shake table: One piece of cardboard approx. 28 cm by 38 cm (11 in. x 15 in.) Use corrugated cardboard for greatest strength.

Engineered for Earthquakes: Preparing for the Next Big …

To achieve this goal, the engineers built a model of a curved bridge, spanning the entire length of the laboratory, on top of four MTS Systems shake tables. To fit everything in the laboratory, a 40 percent-scale model was used to represent a three-section bridge measuring 145 …

How to Finish a Wood Table | Ask This Old House - …

10/14/2016· Wood-finishing expert Bruce Johnson shares his secrets for applying a professional-quality stain and varnish finish. (See below for a shopping list, tools, and steps.) SUBSCRIBE to This Old House ...

A mechanics-based virtual model of NEES-UCSD shake …

The main objective of this study is to develop a comprehensive mechanics- based virtual model for the large NEES-UCSD shake table under bare and loaded table conditions. The shake table model developed in this study includes a virtual replica of the actual controller, four servovalve models, two single-ended actuators, two effective ...

Shake Table Testing and Analytical Modeling of a Full ...

Author(s): Gavridou, Sofia | Advisor(s): Wallace, John W | Abstract: The level of structural damage and the associated economic impact caused by recent earthquakes worldwide have spurred an increased interest in high performance seismic resisting systems that can sustain severe earthquakes with minimal damage. A particularly efficient high performance wall system consists of precast concrete ...

Building Up - Standing Strong: 2009 NEESWood Capstone …

Building Up. The first NEESWood test took place at a shake-table facility at the University at Buffalo, one of the National Science Foundation's 15 Network for Earthquake Engineering Simulation (NEES) laboratories.. Each of the NEES components brings a different capability to the study of how earthquake forces impact our built environment. From bridge spans to pipelines to seaside communities ...

Large-scale shaking table model tests on seismically ...

Unless there are any remarkable differences in the deformation build-up at the top end of a rock-fill dam model between a 1-G shaking table test and a centrifuge test, a 1-G shaking table test, which has greater workability for preparing models, was preferred.

How to Measure the Loop Transfer Function of Power ...

The regulation characteristics of most power management circuits are defined by the converter loop transfer function which can be plotted in a Bode plot. This representation of the gain of the loop as well as ... Preparing the Signal Generator ... The power supply has to be put in the condition in which the stability test should be performed. This

Shake-Table Tests and Simulation Analyses on EPS Fill …

2.Outline of shake -table tests 2.1. Test specimens and test cases Specimens with a scale of 1/5 and using D-20 type EPS as shown in Figure 1 were used in the shake-table tests. Steel plate 2 cm in thickness, corresponding to the intermediate slabs, were provided at 60 cm vertical

Design Principles for Vibration Test Fixtures

MIT Lincoln Laboratory 27-Oct-10 15 Boundary Conditions Entire Model in Patran •44 SPCs assumed as connection points to table •The 24 bolt holes were modeled as RBE2s •3 RBE2s per support block were used to connect the blocks to the side and bottom panels connecting the support blocks to the panels. •4 bolt holes on front plate modeled as RBE2s, and one RBE3 used to connect the

Faking quakes at full scale: Giant shake tables simulate ...

Then, last summer, they constructed the full-scale building at the University at Buffalo's shake table facility — also funded through the NEES collaboration — which houses two movable 7-meter-by-7-meter shake tables that can be slid apart or operated side-by-side as a single table depending on the application. (Like the table at E-Defense ...