General Page

General page provides information regarding the chosen design code, different types of alignment input, and computation models.

Setting	Description
Design Code	Shows the selected design code that was chosen in Project Settings/General Options.
Relative Humidity	Annual average ambient Relative Humidity in percent for Creep/Shrinkage.
Average Temperature	Average temperature used only for Creep/Shrinkage calculation.
Site Coefficient	According to AASHTO 3.10.5.1-1 table based upon soil profile types defined in articles 3.10.5.2.
Purpose	To identify type for design code application: Road Bridge, Highway Bridge, and Rail Bridge.
Importance Category	According to AASHTO 3.10.3. The bridges are classified into one of three importance categories as follows: Critical bridges, Essential bridges or Other bridges. The basis of classification shall include social/survival and security/defense requirements.
Temperature Zone	According to AASHTO 3.12.3-1 you can chose from 4 types of temperature zones which will give T1 and T2 for temperature gradient.
Seismic Zone	Each bridge shall be assigned to one of the 4 seismic zones which will modify the acceleration coefficient in accordance with AASHTO 3.10.4-1.
Alignment Type	Allows choosing from four types of alignment definition: Straight - a straight axis with a length that is represented by distance between first and last span. Wizard axis - the alignment may be defined or customized segment by segment within "Alignment" and "Profile" pages. Modeler axis - the alignment may be defined using a reference to an axis already defined in Modeler. LandXML axis - the alignment may be defined using a reference to an already existing LandXML axis wizard object.
Alignment Reference	Horizontal offset: Define horizontal distance between roadway axis and superstructure axis. Vertical offset: Define vertical distance between roadway axis and superstructure axis. Bridge start station: Define longitudinal offset on the alignment for the center line from first pier (abutment) without excess length.
Computation model	Beam model Grid model