Specifying the parameters of connection
Overview of connection parameter groups Overview of connection parameter groups
Basic
Basic ungrouped) ungrouped) parametersparameters
Side => [Beam name]
Side => [Beam name]
Side
Side group in the table. group in the table.
Side
Side group are: group are:
frame bolted
frame bolted frame weldedframe welded connection can connection can
B
resistance and stiffness of the connection and displays resistance and stiffness of the connection and displays them in the table at the end of
them in the table at the end of C
Caallccuullaattiioon n ttyyppee SSppeecciiffiiees s tthhe e llooaad d ccoonnddiittiioonns s iin n tthhe e ccoonnnneeccttiioonn. . IIf f tthhee type is set to "
type is set to " ", the", the program performs also the checking of the connection.
program performs also the checking of the connection.
And again the results are show
And again the results are shown in the table at the endn in the table at the end of
report generated in the
report generated in the document.document.
Length for stiffness Length for stiffness classification classification
Specifies the length for stiffness classification.
Specifies the length for stiffness classification.
U
Selects type of plate for frame
Selects type of plate for frame pinned connection.pinned connection.
Pin
Edit Bolted Diagonal (for Bolted Edit Bolted Diagonal (for Bolted Diagonal)
Diagonal)
Provides for editing of this type
Provides for editing of this type of connection.of connection.
H
Haauunncchh AAdddds s a a hhaauunncch h tto o tthhe e ccoonnnneecctteed d bbeeaamm. . TThhiis s hhaauunncchh::
affects the check of the connection,affects the check of the connection,
is taken into account when calculating theis taken into account when calculating the substitute" stiffness of he connection (if option substitute" stiffness of he connection (if option
is ignored in the calculation model itself (unlikeis ignored in the calculation model itself (unlike the haunch defined by means of
the haunch defined by means of functionfunction ..
This group of parameters specifies properties and dimensions of the
This group of parameters specifies properties and dimensions of the end plate welded to end plate welded to the connected beam.the connected beam.
This group of parameters specifies properties and dimensions of the
This group of parameters specifies properties and dimensions of the backing plate.backing plate.
This group of parameters specifies properties, shape and dimensions of the
This group of parameters specifies properties, shape and dimensions of the bottom stiffener.bottom stiffener.
Side
Side group. group.
for load cases and combinations for load cases and combinations
Side
Side group. group.
Output
Output then specifies the extent of the output then specifies the extent of the output
Update stiffness
Update stiffness is ON), is ON),
Structure > Haunch
This group of parameters specifies properties and dimensions of the
This group of parameters specifies properties and dimensions of the top stiffener.top stiffener.
This group of parameters specifies properties and dimensions of the
This group of parameters specifies properties and dimensions of the diagonal stiffener.diagonal stiffener.
This group of parameters specifies properties, type and dimensions of the web doubler. It also automatically This group of parameters specifies properties, type and dimensions of the web doubler. It also automatically calculates the size of the element.
calculates the size of the element.
This group of parameters specifies properties, type and dimensions of
This group of parameters specifies properties, type and dimensions of the pinned plate.the pinned plate.
This group of parameters specifies properties, type and dimensions of This group of parameters specifies properties, type and dimensions of cleat.cleat.
Here, the bolt assembly, pattern, distance and other
Here, the bolt assembly, pattern, distance and other parameters concerning bolts are specified.parameters concerning bolts are specified.
This group of parameters specifies properties of the stiffener
This group of parameters specifies properties of the stiffener between bolt rows.between bolt rows.
This group specifies parameters of weld used in
This group specifies parameters of weld used in the connection.the connection.
This group summarises properties of concrete block to which a steel beam is
This group summarises properties of concrete block to which a steel beam is fixed by means of anchors.fixed by means of anchors.
The Anchor data group provides for input
The Anchor data group provides for input of anchor type, shape and properties.of anchor type, shape and properties.
Example:
Example:
Let’s assume a standard knee connection of a column and a beam. There will be only one Let’s assume a standard knee connection of a column and a beam. There will be only one group in the table. It will contain parameters:
group in the table. It will contain parameters:
end plate,end plate,
top stiffener,top stiffener,
bottom stiffener,bottom stiffener,
diagonal stiffener,diagonal stiffener,
web doubler.web doubler.
As soon as
As soon as the user inserts an the user inserts an end plate end plate to the connection, two to the connection, two more parameters are more parameters are added to theadded to the group:
group:
backing plate,backing plate,
bolts.bolts.
Further let’s assume that the user specifies the bolts in the connection. At that moment the Further let’s assume that the user specifies the bolts in the connection. At that moment the connection becomes "realistic" and new items are added to the
connection becomes "realistic" and new items are added to the group:group:
update calculation,update calculation,
calculation type,calculation type,
output.output.
to a sophisticated feature implemented in the property window. Whenever the user places the to a sophisticated feature implemented in the property window. Whenever the user places the mouse cursor over a value cell in the table, the program shows a "bubble" help that brings a simple mouse cursor over a value cell in the table, the program shows a "bubble" help that brings a simple drawing explaining the meaning of the particular parameter. For example, the pictures below drawing explaining the meaning of the particular parameter. For example, the pictures below explain the difference between a small and large web doubler.
explain the difference between a small and large web doubler.
Top stiffener
Bubble help: The editing and adjusting of individual connection parameters is quite easy thanks: The editing and adjusting of individual connection parameters is quite easy thanks
For Frame connections (bolted, welded and pinned), a connection database is available. The contents of this For Frame connections (bolted, welded and pinned), a connection database is available. The contents of this database consists of some pre-defined connections and can hold user defined connections. Besides the database consists of some pre-defined connections and can hold user defined connections. Besides the geometrical data, the capacity properties and the stiffness p
geometrical data, the capacity properties and the stiffness p roperties for a given configuration are saved in roperties for a given configuration are saved in thisthis database. The capacity and stiffness values are based on the ultimate limit state of the joint.
database. The capacity and stiffness values are based on the ultimate limit state of the joint.
During the input of the connection data, this data can be searched in the expert database.
During the input of the connection data, this data can be searched in the expert database.
By means of various options, the user can customise and filter
By means of various options, the user can customise and filter the search algorithm in the database.the search algorithm in the database.
The predefined connections are based on the
The predefined connections are based on the following tables:following tables:
Bemessungshilfen für profilorientiertes Konstruieren Bemessungshilfen für profilorientiertes Konstruieren Auflage 1997
Auflage 1997
Stahlbau-Verlagsgesellsc
Stahlbau-Verlagsgesellschaft mbH haft mbH KölnKöln
Stahlbau Kalender 1999 Stahlbau Kalender 1999
Bemessungshilfen für nachgiebige Stahlknoten mit
Bemessungshilfen für nachgiebige Stahlknoten mit StirnplattenanschlüssenStirnplattenanschlüssen Ernst & Sohn, DSTV, 1999, Berlin
Ernst & Sohn, DSTV, 1999, Berlin The capacity data are introduced as table
The capacity data are introduced as table values.values.
A
A supplementary set supplementary set for for predefined predefined connections is connections is generated generated by by SCIA. The SCIA. The capacity capacity data data are are introduced introduced asas calculated values.
calculated values.
The predefined connections are locked, and cannot be
The predefined connections are locked, and cannot be modified.modified.
To reduce the number of data in the
To reduce the number of data in the database, the predefined connections are based on beam properties. Thisdatabase, the predefined connections are based on beam properties. This implies that the proposed unity check during the search algorithm can be different from the calculated unity implies that the proposed unity check during the search algorithm can be different from the calculated unity check.
check.
A second part of the database consists of user-defined data, which he can input and delete. For this data, both A second part of the database consists of user-defined data, which he can input and delete. For this data, both
beam and column data are considered. The
beam and column data are considered. The capacity data are introduced as calculated values.capacity data are introduced as calculated values.
For each relevant side the best-fitted connection data is represented by its connection name and the graphical For each relevant side the best-fitted connection data is represented by its connection name and the graphical representation. The best fitting res
representation. The best fitting result is the connection with the largest unity cult is the connection with the largest unity check but lower thanheck but lower than 1.1.
A complete list of the m
A complete list of the matching connections is givatching connections is given.en.
This connection list is based on the
This connection list is based on the following search criteria:following search criteria:
the joint type (welded, bolted, pinned) is matching,the joint type (welded, bolted, pinned) is matching,
the geometrical type (beam-column, beam-beam, base plate) the geometrical type (beam-column, beam-beam, base plate) is matching,is matching,
the column properties (geometry and material) are between given limits (see chapter Adjusting thethe column properties (geometry and material) are between given limits (see chapter Adjusting the default parameters),
default parameters),
check for local constraints ( for example : haunch at the top is not always possible for a kneecheck for local constraints ( for example : haunch at the top is not always possible for a knee connection, check for admissible pitch, …).
connection, check for admissible pitch, …).
If these conditions are met, the connection data are retrieved and sorted in unity check order or in priority order If these conditions are met, the connection data are retrieved and sorted in unity check order or in priority order (see chapter Adjusting the default
(see chapter Adjusting the default parameters).parameters).
For each entry, the connection name, the unity check, the position (normal or inverse), the bolt grade, the For each entry, the connection name, the unity check, the position (normal or inverse), the bolt grade, the source name and the priority are present.
source name and the priority are present.
Example Example
IH3E/IPE270/16/20 0.99 + DSTV 10.9 1 IH3E/IPE270/16/20 0.99 + DSTV 10.9 1