- Identify the neighboring column in each direction.
- Measure the distance between the pair.
- Divide the distance by 2.
- Draw a perpendicular line at this point.
- Repeat for all neighboring gridlines until a bounding polygon appears.
How do you find the tributary area of a truss?
How do you calculate the tributary area of a one way slab?
What's tributary area?
How do you calculate tributary area on a deck?
What is the tributary width?
How do you find the tributary width of a beam?
What is the tributary area for an interior column?
What is tributary length?
What is tributary load?
How do you calculate total area load?
Tributary Area
The tributary area is a loaded area that contributes to the load on the. member supporting that area, ex. the area from the center between two beam...
Tributary Width
Tributary width is the length on which the area load works, not the distance between the member and the nearest structural support, a hip girder in...
Tributary Area Definition
The tributary area is a loaded area that contributes to the load on the. member supporting that area, ex. the area from the center between two beam...
Tributary Width Definition
Tributary width is the length on which the area load works, not the distance between the member and the nearest structural support, a hip girder in...
What Is Tributary Area?
The tributary area is a loaded area that contributes to the load on the. member supporting that area, ex. the area from the center between two beam...
How to Calculate Tributary Area?
The area that it supports equals the tributary width times the unit length. The load w that that unit length supports equals the tributary area (1*...
Tributary Area in Columns
Tributary area is the area surrounding the column that is bounded by a panel centerline. In order to calculate the forces and static loads transfer...
How Do You Find Tributary Area?
It's dimension transverse to the joist is half the distance to the next joist on either side (also known as the tributary width) and it's length is...
What Is Tributary Area of a Column?
The area surrounding the column bounded by the centerline of the panel is the tributary area on which loads are supported by the column at the of t...
How Do You Calculate the Tributary Area of a Deck?
Tributary area can be calculated by measuring halfway to the next support (girder, house band, post) in each direction, then multiplying the length...
How to find tributary area?
To summarize this, the tributary area is the area surrounding the column bounded by its’ centerline polygon. Following these simple steps we can approximate them easily: 1 Identify the neighboring column in each direction 2 Measure the distance between the pair 3 Divide the distance by 2 4 Draw a perpendicular line at this point. 5 Repeat for all neighboring gridlines until a bounding polygon appears.
What is the difference between a stiffer column and a wider river?
Just like a wider river has more capacity to transport more water, a stiffer column has more capacity to “transport” (or transfer) more forces. Additionally, the slab can also have different stiffnesses in different direction, making the flow non-uniform.
What is the area on the columns side of the centerline?
The area on the columns side of the centerline will be its’ tributary area . This usually starts with finding the mid point between each pair of columns and draw a perpendicular line. When all perpendicular lines are drawn, the resulting bounding polygon defines the column’s tributary area.
How many grid lines are there in a slab?
The slab has a rectangular shape and the columns are organized in parallel to the slab edges. The structural grid is made up of 4 grid lines in one direction , and 3 grid lines in the other direction. At every grid line intersection, there is a column.
What is the left neighbor of gridline 2?
The left neighbor of gridline 2 is 1. The right neighbor of gridline 2 is 3. Drawing the perpendicular centerlines between C-D, B-C, 1-2 and 2-3 gives us the following result: As you can see, column C-2 is surrounded by 4 intersecting lines, which defines the column’s tributary area boundary.
What is the point where a tributary meets the mainstem?
The point where a tributary meets the mainstem is called the confluence. Tributaries, also called affluents, do not flow directly into the ocean. Most large rivers are formed from many tributaries. Each tributary drains a different watershed, carrying runoff and snowmelt from that area.
What is the opposite of a tributary?
The opposite of a tributary is a distributary. A distributary is a stream that branches off and flows apart from the mainstem of a stream or river. The process is called river bifurcation. At the Continental Divide in the U.S. state of Wyoming, the small North Two Ocean Creek bifurcate s into Pacific Creek and Atlantic Creek.
What is the name of the stream that feeds into a larger stream?
A tributary is a freshwater stream that feeds into a larger stream or river. The larger, or parent, river is called the mainstem. The point where a tributary meets the mainstem is called the confluence. Tributaries, also called affluents, do not flow directly into the ocean.
Do rivers flow directly into the ocean?
Tributaries, also called affluents, do not flow directly into the ocean. Most large rivers are formed from many tributaries. Each tributary drains a different watershed, carrying runoff and snowmelt from that area. Each tributary's watershed makes up the larger watershed of the mainstem.
What is the watershed of the Missouri River?
Each tributary's watershed makes up the larger watershed of the mainstem. The Missouri River's massive watershed, for example, is created by the watersheds of dozens of tributaries extending from the provinces of Alberta and Saskatchewan, Canada, through seven states in the Upper Midwest of the U.S.
Where is the Missouri River located?
The Missouri River's massive watershed, for example, is created by the watersheds of dozens of tributaries extending from the provinces of Alberta and Saskatchewan, Canada, through seven states in the Upper Midwest of the U.S.
What is the Mississippi River watershed?
The Mississippi River watershed is the fourth-largest in the world. A "left-bank tributary" or "right-bank tributary" indicates the side of the river a tributary enters. When identifying a left-bank or right-bank tributary, a geographer looks downstream (the direction the river is flowing).

How Do Columns Work?
What Are Tributary areas?
- Tributary area, or sometimes referred to as influence area, is the area surrounding the column that absorbs the load. A quick google on the word “Tributary” leads us to this wikipedia definitionthat describes a geographical phenomena rather than a structural engineering concept: “A Tributary [..] is a stream or river that flows into a larger stream...
How to Calculate Tributary Areas
- Calculating the exact tributary area can be tricky, because first we have to understand how the forces flow through the slab. Just like a wider river has more capacity to transport more water, a stiffer column has more capacity to “transport” (or transfer) more forces. Additionally, the slab can also have different stiffnesses in different direction, making the flow non-uniform. For insta…
Example
- To exemplify how tributary areas can be calculate, let’s take a simple example structure. For a more involved structure, see this article. Please observe the structure below: The slab has a rectangular shape and the columns are organized in parallel to the slab edges. The structural grid is made up of 4 grid lines in one direction, and 3 grid lines in the other direction. At every grid lin…
Conclusion
- In this article we have demonstrated a simple geometric approach for calculating column tributary areas. Note that this method is an approximation and assumes that the supporting columns are equally stiff. Furthermore the slab is assumed to carry loads uniformly in all directions. The example structure shown in the article is also regular, which makes the calculation easier. For a…