The crews working on the replacement project of the Harbor bridge of $ 1.2 million in Corpus Christi, Texas, reached a milestone when they completed the main closure of the February period. The new Bridge Harbor is now the longest concrete segmental cable bridge in North America and is scheduled for a tape cut next month after the work is completed.
The bridge of 3,295 feet in length that covers the channel of the Corpus Christi ship is planned to replace the aging port bridge, which officials with the Texas transport department (txdot) say that it no longer provides enough navigation authorization for large modern sea vessels and has some security problems for those who believe, as they lack the shoulders and access for the shoulders and access to the shoulders or access to the shoulders and access to the paths or access to the shoulders and accesses for via. abrupt.
The new bridge includes 698 prefabricated concrete flags and 84 Delta frames. It has a purification of 205 feet on the water and has six lanes plus a median, its shoulders and a shared path for cyclists and pedestrians. With the towers 538 feet high, it is the highest structure in the south of Texas, according to FlatIRON/Dragados LLC, the joint company that leads the construction of Txdot. More than 10 million working hours have entered the project.
“It was really important to witness how the extensive months of design coordination among all the teams culminated in a perfect execution, with the bridge that responded exactly as expected during the alignment and the dam,” says Francisco Sarria, Deputy Director of the Flatiron/Dragados construction.
Lynn Allison, a spokesman for the FlatIRON/Dragados project, said that the semicircular closure of the duration of 1,661 feet was one of the most significant challenges of the project. The team used a couple of strong bundles to achieve the vertical and horizontal alignment and installed a couple of tips at the top and bottom of the section to withstand the axial and bending forces. The crews temporarily emphasized some of the permanent tendons of the open joint to manage the stresses of the upper cover adjoining the closing joint and installed eight 3-in-day. Post-thypensation bars through the lower tips to face the tension in some scenarios.
The team used continuous geometric monitoring to ensure that the cantilever tips met a few inches from the foreseen vertical alignment and within a horizontally inches fraction, both within the admissible tolerances and the operational rank of temporary works, according to Allison. Once the voladisses were aligned, the crews separated their tips into a specified axial force.
The construction of the port bridge ends. Photo Cortesy Harbor Bridge Project “The connection and meeting of the two extensions within a inches fraction shows the amount of accuracy, care and experience taken with the design and construction of the bridge,” says Joseph Briones, an assistant engineering of the Txdot district for the Corpus Christi area. “The fact that this was achieved with each interval of more than 800 feet in length and a height of more than 200 feet provides more certainty about the safety and integrity of this structure.”
The project team overcame several obstacles to reach this point. Txdot stopped the work twice because of the concerns with the design work of the engineers of the Pont de Figg after the 2018 collapse of a pedestrian bridge designed by Figg in Florida. Flatiron/Dragados selected an ARUP and CFC team to replace Figg as the project registration engineer, and Txdot also required a changing board of changes in design based on an independent review of International Bridge Technologies. Txdot and Flatiron/Dragados resolved the remaining disputes by 2023.
With the full main period, the crews are completing the lighting lighting in the upper pylons and the delta frames and installing barriers and railings, drainage and cushioning. Txdot plans to hold a dedication ceremony and an opening step on May 10, and Allison says it will definitely open traffic in late May.
The demolition of the old port bridge is planned to follow the opening of the new bridge. The new bridge is designed to last 170 years.
