Preservation Of Steel In
Preservation Of Steel In Concrete 123. Tests Have Been Made To Find The Value Of Portland Cement Concrete As A Protection Of Steel Or Iron From Corrosion. Nearly All Of These Tests Have Been Of Short Dilration (from A. Few Weeks To Several Months); But They Have Clearly Shown, When ...
Representative Examples Of Work
Representative Examples Of Work. 3s1. Buck Building. Fig. 1s7 Shows The Typical Structural Floor-plan, Above The First Floor, Of A Building Constructed For J. C. Buck At Fifth And Appletree Streets, Philadelphia. The Architects Were Ballinger & Perrot, And The Ing Was Constructed By Cramp & Company, Philadelphia. The Building ...
Retaining Walls 223
Retaining Walls 223. A Retaining Wall Is A Wall Built To Sustain The Pressure Of A Vertical Bank Of Earth. The Stability Of The Wall Is A Comparatively Simple Matter When Three Quantities Have Been Determined: (1) The Intensity Of The Earth Pressure; (2) The Point Of Application Of The ...
Retaining Walls 300
Retaining Walls 300. Essential Principles. The Economy Of A Retaining Wall Of Reinforced Concrete Lies In The Fact That By Adopting A Skeleton Form Of Construction And Utilizing The Tensional And Transverse Strength Which May Be Obtained From Reinforced Concrete, A Wall May Be Built, Of Which The Volume Of ...
Sand 73
Sand 73. Sand Is Nearly Always A Constituent Part Of Mortar And Concrete. The Strength Of The Masonry Is Dependent To A Consider Able Extent On The Qualities Of The Sand, And It Is Therefore Important That The Desirable And The Defective Qualities Should Be Understood. 74. Object. The Chief ...
Steel For Reinforcing Concrete
Steel For Reinforcing Concrete 137. Steel For Reinforcing Concrete Is Not Usually Subjected To So Severe Treatment As Ordinary Structural Steel, As The Impact Effect Is Likely To Be Less; But The Quality Of The Steel Should Be Carefully Specified. To Reduce The Cost Of Reinforce 1-concrete Structures, There Has ...
Stone Masonry 143
Stone Masonry 143. Definitions. In The Following Paragraphs, The Meanings Of Various Technical Terms Frequently Used In Stone Masonry, Are Clearly Explained: Arris—the External Edge Formed By Two Surfaces, Whether Plane Or Curved, Meeting Each Other. Ashlar—a Stone Wall Built Of Stones Having Rectangular Faces And With Joints Dressed So ...
Strength Of Tbea Ivis
Strength Of T=bea Ivis 2s4. When Concrete Beams Are Laid In Conjunction With Over Lying Floor-slabs, The Concrete For Both The Beams And The Slabs Being Laid In One Operation, The Strength Of Such Beams Is Very Much Greater Than Their Strength Considered Merely As Plain Beams, Even Though We ...
Tanks 313
Tanks 313. Design. The Extreme Durability Of Reinforced-concrete Tanks, And Their Immunity From Deterioration By Rust, Which So Quickly Destroys Steel Tanks, Have Resulted In The Of A Large And Increasing Number Of Tanks In Reinforced Concrete. Such Tanks Must Be Designed To Withstand The Bursting Pressure Of The Water. ...
Testing Stone 6
Testing Stone 6. Of The Above Four Qualities, Only Two—durability And Strength—are Susceptible Of Laboratory Testing, And Even For These Qualities The Best Known Laboratory Tests Are Not Conclusive. The Deterioration And Partial Failure Of The Masonry In Some Of The Best Known Cathedrals Of Europe, Which Commanded The Best ...
Theory Of Arches 394
Theory Of Arches 394. The Mechanics Of The Arch Are Almost Invariably Solved By A Graphical Method, Or By A Combination Of The Graphical Method With Numerical Calculations. This Is Clone, Not Only Because It Simpli Fies The Work, But Also Because, Although The Accuracy Of The Graphical Method Is ...
Tt
Tt' / 4,200 X 6 X 12 = 37,s00 Inch-pounds. Placing This Numerical Value Of M0 = 397 B As In Equation 23, We Have 37,s00 = 397 B In This Case, B = 12 Inches. Substituting This Value Of B, We Solve For And Obtain = 7.93, And D ...
Vertical Walls 306
Vertical Walls 306. Curtain Walls. Vertical Walls Which Are Not Intended To Carry Any Weight, Are Sometimes Made Of Reinforced Concrete. They Are Then Called Curtain Walls, And Are Designed Merely To Fill In The Panels Between The Posts And Girders Which Form The Skeleton Frame Of The Building. When ...
Voussoir Arches 404
Voussoir Arches 404. Definition. A Voussoir Arch Is An Arch Composed Of Separate Stones, Called Vaussoirs, Which Are So Shaped And Designed That The Line Of Pressures Between The Stones Is Approximately Per Pendicular To The Joints Between The Stones. So Far As It Affects The Mechanics Of The Problem, ...
Voussoir Arches Subjected To
Voussoir Arches Subjected To Oblique Forces 417. Determination Of Load On A Voussoir. The Previous Determinations Have Been Confined To Arches Which Are Assumed To Be Acted On Solely By Vertical Forces. For Flat Segmental Arc1ies, Or Even For Elliptical Arches Where The Arch Is Very Much Thickened At Each ...
Wind Bracing 305
Wind Bracing 305. General Principles. The Practical Applications Of The Principles Of Reinforced Concrete Which Have Already Been Discussed, Have Been Almost Exclusively Those Required For Sustaining Vertical Loads; But A Structure Consisting Simply Of Beams, Girders, Slabs, And Columns May Fall Down, Like A House Of Cards, Unless It ...