Formwork for Concrete Structures by R.L.Peurifoy and G.D- By EasyEngineering.net

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Contents
Forms for Pilasters and Corners . . . . . . . . . . . . . . . . . 255
Ellis Quick-Lock Forming System . . . . . . . . . . . . . . . 257
Jahn System for Wall Forms . . . . . . . . . . . . . . . . . . . . 260
Forms for a Concrete Wall Requiring a Ledge
for Brick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Forms for a Stepped Concrete Wall . . . . . . . . . . . . . . 269
Modular Panel Systems . . . . . . . . . . . . . . . . . . . . . . . 269
Hand Setting Modular Panels . . . . . . . . . . . . . . . . . . 272
Gang-Forming Applications . . . . . . . . . . . . . . . . . . . . 272
Gang Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Forms for Curved Walls . . . . . . . . . . . . . . . . . . . . . . . . 276
Jump Form System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Self-Lifting Wall-Forming System . . . . . . . . . . . . . . . 280
Insulating Concrete Forms . . . . . . . . . . . . . . . . . . . . . 281
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
ww.EasyEngineering.n
10 Forms for Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Pressure on Column Forms . . . . . . . . . . . . . . . . . . . . . 283
Designing Forms for Square or Rectangular
Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Sheathing for Column Forms . . . . . . . . . . . . . . . . . . . 286
Maximum Spacing of Column Clamps Using S4S
Lumber Placed Vertical as Sheathing . . . . . . . . . . 286
Example 10-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Plywood Sheathing with Vertical Wood Battens for
Column Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Tables for Determining the Maximum Span
Length of Plyform Sheathing . . . . . . . . . . . . . . . . . 290
Maximum Spacing of Column Clamps Using
Plyform with Vertical Wood Battens . . . . . . . . . . . 292
Example 10-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Column Clamps for Column Forms . . . . . . . . . . . . . 296
Design of Wood Yokes for Columns . . . . . . . . . . . . . 296
Example 10-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Example 10-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Steel Column Clamps with Wedges . . . . . . . . . . . . . 300
Example 10-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Concrete Column Forms with Patented Rotating
Locking Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Column Forms Using Jahn Brackets and
Cornerlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Modular Panel Column Forms . . . . . . . . . . . . . . . . . . 306
Adjustable Wraparound Column Forms . . . . . . . . . . 308
All-Metal Forms for Rectangular Forms . . . . . . . . . . 308
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