US Army EN 5151 Engineer Course - Design Forms For A Concrete Wall En5151, SURVIVAL, Dokumenty inne

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SUBCOURSE
EDITION
EN5151
A
DESIGN FORMS FOR A CONCRETE WALL
DESIGN FORMS FOR A CONCRETE WALL
Subcourse EN5151
EDITION A
United States Army Engineer School
Fort Leonard Wood, Missouri 65473
5 Credit Hours
Edition Date: December 1995
SUBCOURSE OVERVIEW
This subcourse addresses the principles of designing wooden wall forms for concrete. One of the
carpenter's most important concerns is to ensure that all wooden concrete wall forms are designed for
strength and durability. In this subcourse you will be shown how to properly select the materials and
spacing of these materials to gain that desired strength. As a carpenter, you must be able to construct
these wall forms to support the concrete during placement and initial set period. This will be performed
in accordance with Field Manual (FM) 5-742.
There are no prerequisites for this subcourse.
The lessons in this subcourse reflect the doctrine which was current at the time it was prepared. In your
own work situation, always refer to the latest official publications.
Unless otherwise stated, the masculine gender of singular pronouns is used to refer to both men and
women.
TERMINAL LEARNING OBJECTIVE:
ACTION:
You will describe procedures used to design and construct wooden forms for
concrete walls.
CONDITION:
You will be given the material contained in this subcourse and an Army
Correspondence Course Program (ACCP) examination response sheet.
STANDARD:
To demonstrate competency of this task, you must achieve a minimum of 70
percent the subcourse examination.
i
EN5151
TABLE OF CONTENTS
Section
Page
Subcourse Overview.......................................................................................................................................i
Lesson:
Part A: Math Review...................................................................................................................1-1
Part B: Select Materials for Wallforms.........................................................................................1-5
Part C: Complete Design Procedure............................................................................................1-8
Practice Exercise.............................................................................................................1-33
Answer Key and Feedback.............................................................................................1-44
Appendix A: List of Common Acronyms............................................................................................A-1
Appendix B: Recommended Reading List...........................................................................................B-1
EN5151
ii
LESSON
DESIGN FORMS FOR A CONCRETE WALL
Critical Task 051-199-4014
OVERVIEW
LESSON DESCRIPTION:
In this lesson you will learn what materials to select and the procedures necessary in designing a wooden
wall form for a concrete wall. The procedures must be performed in a step-by-step process and will be
presented in that manner in this lesson.
TERMINAL LEARNING OBJECTIVE:
ACTION
You will deign a wooden form for concrete walls.
CONDITION
You will be given subcourse booklet EN5151 and complete the review
exercise.
STANDARD:
You must complete the lesson and the practical exercise.
REFERENCES:
The material contained in this lesson was derived from FMs 5-34, 5-426, and 5-
742; and STPs 5-12B4-SM-TG; and 5-51B12-SM-TG.
INTRODUCTION
It is very important that you, as a carpenter, learn the processes involved with the designing of forms for
concrete walls. Your first step is to learn the different names of various components of wooden
concrete wallforms. This will enable you to determine what type and size of materials to use and where
to place these specific members. Your next step is to become an expert in determining the spacing of
each of these supporting members. This will enable you to design a concrete form that will successfully
handle concrete during the placing and setting up periods.
PART A: MATH REVIEW
Designing concrete forms, like other construction tasks, requires the use of a basic tool. If used
skillfully, the “tool”-mathematics-will help you to complete this task.
1-1
EN5151
Before you start the subcourse lesson, you need to perform a short review of the various types of math
problems that you will encounter throughout. If you know how to add, subtract, multiply, divide, and
are familiar with the operation symbols, you will proceed through this lesson without any difficulty. On
the other hand, if you have trouble, be patient. Examples explaining each problem are included in this
lesson. Just follow the directions, keeping in mind that you learn best by actually working out the
solutions to the problems on paper.
MATH EXERCISE
Space has been provided below each question for you to work out your solution to each problem. After
completing the questions, turn to page 1-4 and check your solutions with the review exercise answers and
feedback sheet.
1. Convert 93 feet into inches.
2. How many 8-inch stakes can you cut from a piece of lumber that is 2 inches by 4 inches by 16 feet
long?
3. How many board feet are in a piece of lumber that is 2 inches by 6 inches by 12 feet long?
4. How many 28-inch-long stakes can you cut from a 7-foot stake that is a piece of a 2 by 4?
EN5151
1-2
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