Summary Part 5: Articulation of Building Massing - Architectural Composition by John Beverley Robinson

This week, we continue our series examining the classic book Architectural Composition, 1908, by John Beverley Robinson.

(Here are links to previous posts summarizing Robinson's discussion of fundamental architectural design principles):

1. Unity

2. Individuality and Continuity

3. Similarity

4. Hierarchy and Subordination

   

Today, we explore Robinson's discussion of important and universal principles for creating powerful architectural compositions using clear Articulation of Building Massing. 

To begin, Robinson postulates that:

Building compositions may be comprised of three hierarchical categories of forms: primary masses, secondary masses, and details.

1. Primary masses are the largest forms in a composition.  They are perceivable at a glance as the main body of a building, to which other smaller secondary masses and details may be added.
2. Secondary masses, or appendages, may either project horizontally from primary masses or may project vertically from primary masses.  A secondary mass connecting two primary masses is called a link.
3. After primary / secondary masses and links / appendages, comes a third level of forms: details i.e. doors, windows, chimneys, columns, brackets, arches, panels, cartouches, smaller turrets, and dormers.

Robinson goes on to explain that:

All buildings of character may be categorized into one of a limited number of combinations of single, double and triple primary masses, and associated secondary links and appendages:

Robinson then proceeds to delve more deeply into the important characteristics of these massing variations:

One Single Primary Mass:

A building consisting of a single primary mass possesses unity in the highest degree.  When it is possible to simplify a composition to a single mass, such as the Boston Public Library (below), do not give up the opportunity lightly:

Note: When designing very large buildings of a single primary mass, beware of imposing artificial vertical breaks in the composition if they are reveals of 8 inches or so (or even less) for the sake of visual variety.  The articulation gained is usually outweighed by the loss of unity caused by breaking the horizontal lines and fragmenting the mass.

Two Primary Masses:

Two primary masses connected by a linking form will typically read as a single building form.  The double primary forms must be combined via a visible link, otherwise the resulting duality is troublesome like two doors, exactly alike, placed close together.  The two primary forms must be similar, or discord will result.  The two primary masses must be similar in shape, but need not be similar in size to achieve unity, as seen with the Collegiate Gothic building (below) on the Yale University Campus in New Haven, CT:

Bilateral symmetry of two identical compositions is called “double composition” and requires great care to pull off well.  In order to unify a double composition, a single object, either a secondary mass or a detail, is often placed on the link between the two primary masses, usually at the center, such as porch and dormers of this apartment building (below) in Baldwin Park, FL:

Three Primary Masses:

Examples of compositions of triple primary masses, all the same size and all alike, almost never occur however examples where the central mass differs from the side masses are innumerably common.  Most commonly, the central primary mass is larger than the two flanking primary masses, as seen in the civic building example (below) on Tbilisi, Georgia's scenic Rustaveli Avenue.  Compositions of three primary masses tend to read simultaneously like two separate compositions welded together: one of two masses joined by a link and a single mass with appendages:

In general, the more similar the three masses are in size, the more similar they should be in appearance.  On the other hand, no matter how great may be the difference in size, it is always possible to use a substantially similar treatment (i.e. the Taj Mahal)

Beyond three primary masses, the mind fails to grasp a group of objects as a unit and only perceives plurality.  Groupings of four primary masses tend to coalesce into subgroups of two or three.

Secondary Masses:

Secondary masses must not be randomly applied, but must be composed with careful attention to number, size, shape and dimensions.  The form which is intended to be primary and the form which is intended to be secondary should clearly read as such.  Secondary masses that possess individuality (vertical expression) fit most naturally on primary masses that also possess individuality, like the gabled forms of this academic building example (below) from Michigan State University's campus in East Lansing, MI:

A single secondary mass maximizes a sense of unity just like a single primary mass.  A central classical portico or porch is the most common form of a dominant secondary mass, such as demonstrated by this house (below) on Beaufort, SC's Bay Street:  

When grouping two or three secondary masses together, all masses should be alike (if three masses, the central one can be larger) like the porticos of the Chautauqua Hall of Brotherhood in DeFuniak Springs, FL (below): 

Secondary subordinate masses may also be composed in balanced asymmetry, as seen in the example (below) from Boston's Back Bay.  This is one of the favorite motifs of the Richardsonian Romanesque and Victorian styles:

Secondary masses generally follow the same rules as primary masses.  An exception, three secondary masses of the same shape and size may be freely used.  Four or more equally sized and shaped secondary elements are aesthetically pleasing, especially when evenly spaced.  They can be jarring if unevenly spaced.  Four or more elements express unity through continuity rather than through individuality, as seen in the Collegiate Gothic Buildings (below) on Yale University's Campus:

Details:

Details are minor architectural objects such as windows, door openings, panels, niches, columns, arches, etc.  The rules for the number and composition of details are the same as for secondary masses.  As with secondary masses, a single detail properly placed will often be sufficient to give unity to a whole composition, as in the example (below) from the North End of Boston.  A single primary organizing detail is just as effective if placed asymmetrically or symmetrically:

 

When grouping multiple details, such as columns in a colonnade, avoid changes in spacing.  

Arrangement of details follows the same principles as the arrangement of secondary masses.  Division of a mass into two parts by details gives an impression of continuity.  Division into one or three parts gives an impression of individuality. 

Endlessly creative combinations and variations are possible!

Amazon: Architectural Composition, 1908 (by John Beverley Robinson)