Seismic Design Support Program for Continuous Elevated Bridges "JT-KOHKA"

We will consistently carry out seismic design for level 2 earthquake motion of continuous elevated bridges.

The seismic design support program for continuous viaducts, "JT-KOHKA," is based on the Road Bridge Design Guidelines and Commentary I Common Edition, V Seismic Design Edition (November 2017), and the Design Guidelines Volume 2: Bridge Construction Edition, among others. It supports seismic design for continuous viaducts using both static and dynamic verification methods. This program overcomes various issues that are difficult to address with conventional general-purpose seismic analysis software, allowing for consistent and accurate work from modeling to evaluation of analysis results and preparation of calculation reports. Additionally, this product includes a Level 1 seismic analysis option and a rigid frame pier option. For more details, please download the catalog. *The catalog is available from the "Urban Development Database Site" (https://kensetsu.ipros.jp/product/detail/2000095756).

basic information

【Features】 ○ Bridge Types: Girder bridges (simple girder bridges, continuous girder bridges, seismic isolation bridges, curved bridges, skew bridges), frame bridges, bridges with structures for dispersing horizontal forces during earthquakes, bridges including skewed sections. ○ Substructures: Single-column RC piers (rectangular, circular, oval, or arbitrary cross-sections, solid or hollow), single-column SRC piers (steel-concrete composite piers), single-column interlocking piers (in accordance with Design Guidelines Volume 2), single-column steel piers, single-column SC structure piers (REED method), frame-type RC piers (rectangular, circular, or arbitrary cross-sections, solid or hollow) (only supported in 3D version), frame-type steel piers (only supported in 3D version). ○ Verification: Verification through static analysis, verification through nonlinear dynamic analysis. ○ Applicable Standards and References: Road Bridge Design Specifications and Commentary I Common Edition (November 2017), Road Bridge Design Specifications and Commentary V Seismic Design Edition (November 2017), Design Guidelines Volume 2 Bridge Construction Edition, Bridge Maintenance Edition (August 2016), Reference Materials related to Road Bridge Design Specifications and Commentary V Seismic Design Edition (March 2015), Technical Materials on Seismic Reinforcement Design for Existing Bridges National Institute for Land and Infrastructure Management Document No. 700, Soil Research Document No. 4244 (November 2012). ● For more details, please contact us or download the catalog.