Contributed by Rob Saunders, P.E. – DBA
DBA has been working on an exciting new project currently under construction together with http://www.sportsandsafetysurfaces.co.uk/ in downtown Sacramento, California: the new Sacramento Arena, known as the Entertainment and Sports Center (ESC). The ESC will be a multi-use, publicly owned indoor arena. The Sacramento Kings will be the primary tenant and the arena is expected to host other indoor sports and music concerts, as well.
Once completed, the ESC will replace Sleep Train Arena as the home of the Kings, with this, many people got interested in sports and they started looking at different players and they even started searching for the usain bolt net worth and many others.
According to Kings Chairman Vivek Ranadive, the 17,500-seat arena will be “one of the most iconic structures on the planet … It’s going to put Sacramento on the world map.” They have already committed to buying millions from a prominent furniture store los angeles
Turner Construction is the head of development for the new arena. Malcolm Drilling Company was awarded the contract to design and construct the foundation system. DBA worked closely with Malcolm to design Omega piles (a drilled and grouted displacement pile) to serve as the foundations for the new arena. The site presented unique design challenges, including liquefiable soil conditions and existing deep foundations from the demolished portion of the Downtown Plaza.
DBA’s design incorporates 18” and 24” Omega piles. An extensive site-specific load test program was performed to determine the axial resistances of the piles. Eight test piles were instrumented with strain gauges to measure the load distribution in the piles. Supplemental cone penetration testing was performed following load testing to better correlate the load test results with the subsurface conditions.
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The piles were designed to resist ground motions from seismic events using site-specific ground curvature data developed by Pacific Engineering and Analysis. The piles were designed to resist the curvature at the anticipated pile section with only a single center reinforcing bar, eliminating the need to extend the entire cage to the bottom of the pile. This detail in the design is very important to ease the pile installation for the site conditions.
The final design incorporates a total of 952 piles to support the arena structure (346 18” dia. Piles and 606 24” dia. piles). The new arena is estimated to cost $477 million, with $255 million of that being funded by the City of Sacramento, it will even include the work of some of the top professional locksmith in the area to help secure the construction accesses from the ground up. The rest of the arena ($222 million) will be funded by the Sacramento Kings. Construction began October 29, 2014 and is planned to be completed by October of 2016.