|
Upper Table: Table of Load trains
|
| Setting | Description |
|---|
| Number
|
Number of the load train
|
| Fact-min
|
The factors Fact-min and Fact-max allow for
differing between the effect on positive result values (mid-span moment) and
negative result values (hogging moments). Negative result values are multiplied
by the factor Fact-min.
|
| Fact-max
|
Positive result values are multiplied by the
factor Fact-max.
|
| Function qlen
|
Name of the variable describing the length
dependency of the intensity of the uniform load (q=q(qlen)). The program
evaluates the effective length of the uniform loading, and the specified load
intensities q are multiplied by the respective function value.
|
| Function Beta
|
Variable for defining the dependency of lane
factors Beta-i from the loaded length and the lane width (British Standard and
derived codes).
|
| Triangle f.
|
Code, whether the equivalent triangle load in
case of cusped sections in the influence line shall be adopted.
|
| Load Lb
|
Only equivalent triangle load considered.
|
|
|
Lower table: Table of Loads of a load train
|
| Setting | Description |
|---|
| Number
|
Keyword, currently always
LITEM.
|
| q
|
Load intensity of the uniform load (line
load) along the block length
|
| Fact-max
|
Load intensity of the concentric load (axle
load) at begin of the block length
|
| l-from
|
Length of the block or minimum length in case
of variable block length
|
| l-to
|
Maximum length of the block in case of
variable block length
|
| l-step
|
Length step in case of variable block length
|
| q-flag
|
Key, whether the load is unconditionally
acting over the whole block length, or whether it is variable (value q where
unfavorable, value 0.0 where favorable). Currently only Var (= variablel)
available.
|
| F-flag
|
Key, whether the load F is unconditionally
considered, or only if unfavorable
-
Fix: F is always considered, even
if being favorable.
-
LRFD: F is only considered if
unfavorable.
|
| AASHTO
|
Key for the evaluation of hogging moments,
telling whether the load F can act simultaneously in 2 neighbored spans
(Yes).
|
| q-free
|
Key, whether the block length is defined or
unlimited (Free).
|
| Row 11(without header)
|
Key, whether the load is also distributed in
lateral direction.
-
Empty: Loads are applied as line
load or concentrated load along the center of the lane.
-
LRFD: Distribution in transversal
direction is considered.
|
|
| Standard Load Train + Create Live Load Stage
|
Add predefined template for traffic load analysis including load
trains according to selected standard. By adding one the live load macros, a
stage for traffic and related load trains will be generated automatically.
These live load macros are also available in
Analyzer->Schedule->Extras->Traffic Load Macros.
|
Note: Traffic lanes need to be defined first. Otherwise, live
load analysis cannot be performed.
|
| Standard Load Train
|
By adding one the standard load trains, load trains will be
generated automatically. The standard load trains are also available in
Analyzer->Schedule->Extras->Loading and Stages->Load Train
Definitions
.
|
