The International Information Center for Structural Engineers

Thursday, 14 November 2013 14:55

Frequency Response Analysis with DIANA Featured

The dynamic analysis of dam-fluid-foundation interaction is of vital importance in engineering practice. Westergaard originally developed analytical expressions to compute the hydrodynamic pressure on a dam with vertical upstream face subjected to seismic ground motions. With advances in computer technology and the advent of finite element analysis, the numerical analysis of dams, with software such as DIANA, has become easier and faster.

This paper highlights the capabilities of DIANA to consider the effects of fluid compressibility and foundation flexibility. This is one of a collection of white papers written by staff members at TNO DIANA BV which are available for download on this website.

Source: TNO DIANA

TheStructuralEngineer.info is pleased to launch its new website. The website is a major upgrade of the earlier version of thestructuralengineer.info. It includes many new indexed databases, including a fully upgraded online library and software directory.

More importantly, TheStructuralEngineer.info bolsters a modern News Center that will keep its users updated with the latest news in structural engineering globally. With all that, the presence of the website in social media is launched, so that interested professionals can be kept updated via facebook and twitter on the latest news in structural engineering.

The StructuralEngineer.info News Center is being funded by our Annual Corporate Sponsors " (learn more):

A deal was finalized between the Port Authority of New York and New Jersey and a team of private companies to replace and demolish the existing Goethals Bridge connecting Staten Island and New Jersey. The team, named the NYNJ Link Partnership, is comprised of Macquarie Infrastructure and Real Assets Inc., Kiewit Development and Infrastructure, Weeks Marine, and Massman Construction. This is the Port Authority’s first public-private partnership and will be financed through tax-exempt bonds, loans, and developer contributions. The NYNJ Link Partnership is responsible for designing, building, financing, and maintaining the bridge. The replacement  bridge will improve the existing bridge by having 6 12-foot wide lanes, interior and exterior shoulders, a pedestrian and bike path, and a lane to be developed for buses, HOV, or light rail in the future.

Monday, 11 November 2013 19:15

Philippines Devastated After Typhoon Haiyan

Typhoon Haiyan made landfall in the Philippines on Friday as one of the strongest storms on record.  Sustained winds of 145 mph with gusts up to 235 mph, as well as waves topping 40 feet in height, destroyed many of the country’s costal towns. Tacloban, one of the hardest hit areas, has nearly no structures left standing, including its airport. Many other villages in the Philippines are facing similar devastation, and it is reported 70% to 80% of the structures in Haiyan’s path were destroyed.

The StructuralEngineer.info News Center is being funded by our Annual Corporate Sponsors " (learn more):

Upon completion, the 369-meter tower will be the 26th tallest building in the world and one of the top ten tallest buildings in the United Arab Emirates. Arabtech construction, the same company that built the Burj Khalifa, was awarded the contract on Wednesday to build the 23,000 square meter building.  The tower plans include 18 floors of office space, a 350-room hotel, 180 luxurious apartments, and 9,008 meters of retail space.  Construction will begin this month and is expected to be finished in May 2017.

A start date of late 2014 was announced on Tuesday for the construction of the Gulf Railway Network Project.  The rail line will connect the six gulf nations of Oman, Kuwait, UAE, Qatar, Bahrain, and Saudi Arabia. Detailed Engineering and Design will be completed by the end of the year.  Each of the six nations will begin constructing the rail line in their own country and linking the rail line across international borders will be finished near the end of the project.  An advisor to the project made these announcements at the MEED Mena Rail & Metro Summit Conference held in Abhu Dhabi.

The StructuralEngineer.info News Center is being funded by our Annual Corporate Sponsors " (learn more):

A new chart released by BCA, an independent investment research company, shows that infrastructure spending on non-defense structures has seen a significant drop from roughly $325 billion in 2002 to under $250 billion in 2013.  It is important to note that this data includes both state and federal spending.  State investment in infrastructure has been very low since the recession began, and it is expected that this spending will increase in the future.