Our substructure and foundation program can be linked with data! It performs calculations for design horizontal seismic intensity, inertial forces, and more.
The calculation of the natural period (H24 version) is a civil engineering design software that can perform calculations of the natural period, girder span length, reaction force distribution, and strength checks using the equivalent linearization method for bridge piers, based on the Road Bridge Design Guidelines and its commentary, V Seismic Design Edition. In the calculation of the natural period, it links with our substructure and foundation programs to automatically calculate necessary section constants and other parameters. Please utilize it for calculations of design horizontal seismic intensity and inertial forces. [Features] ■ Calculates the natural period based on design vibration units and computes design horizontal seismic intensity and inertial forces ■ Can also calculate the natural period during seismic isolation design ■ Capable of calculating up to 1 superstructure with 20 spans and 20 substructures ■ Considers up to 3 cross-section variations for the superstructure ■ Bearing conditions can be selected from fixed bearings, movable bearings, rubber bearings, and seismic isolation bearings *For more details, please refer to the PDF materials or feel free to contact us.
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【Other Features】 ■ If the foundation work involves deep foundation piles, the spring constant can be read from our "Design of Deep Foundation Piles." ■ Automatic identification of soil type and soil characteristic values (TG) is possible. ■ Arbitrary loads can be considered in the frame model. ■ Options include straight bridges, skew bridges, and curved bridges. ■ Supports a simplified estimation method for nonlinear response using the equivalent linearization method. 【Applicable Standards】 ■ "Road Bridge Design Specifications and Commentary IV Substructure Edition," March 2012 (Japan Road Association) ■ "Road Bridge Design Specifications and Commentary V Seismic Design Edition," March 2012 (Japan Road Association) ■ "Materials on Seismic Design of Road Bridges," March 1997 (Japan Road Association) ■ "Road Bridge Bearing Handbook," April 2004 (Japan Road Association) ■ "Manual (Draft) for Seismic Isolation Design Methods for Road Bridges Using Rubber Bearings," October 1992 (Ministry of Construction, Civil Engineering Research Institute) ■ "Simplified Estimation Method for Nonlinear Seismic Response of Road Bridges with Seismic Horizontal Force Distribution Structures Using Rubber Bearings," March 1999 (Ministry of Construction, Civil Engineering Research Institute) *For more details, please refer to the PDF materials or feel free to contact us.
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For more details, please refer to the PDF document or feel free to contact us.
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Our company is widely used by civil engineering firms for the development and sale of civil engineering design software. We provide comprehensive support for your business, including retaining walls, slopes, temporary structures, bridges, and cost estimation. Please feel free to contact us if you have any requests.