Project Booklet. Structural Drafting with AutoCAD

Transcription

1 Project Booklet Structural Drafting with AutoCAD

2 Introduction 1 General Setup 2 Border and Title Block 3 Drafting the Foundation Plan (Plate 1) 8 Drafting the South Elevation (Plate 2) 11 Drafting Section A (Plate 3) 14 Drafting Section B (Plate 4) 16 Drafting Details C, C1, and C2 (Plate 5) 16 Drafting Connection Details D, D1, F, F1 (Plate 6) 18 Drafting Foundation Details E and E1 (Plate 7) 20 Inspecting Your Work 22 Contents iii

3 Structural Drafting with AutoCAD INTRODUCTION For this project, you ll prepare a partial set of structural drawing using AutoCAD. Essentially, structural drafting is a mix of mechanical and architectural drawing methods. In general, however, the specific drafting techniques used in structural drafting are the same as those used in mechanical drafting. With this project, you ll put into practice this special combination of mechanical and architectural methods. You ll create drawings that would typically be involved in planning and constructing a small storage building. A foundation plan, an elevation, two sections, and several details will be drafted as parts of seven different drawings for the structural steel building. The information you need to create each of these drawings will be given in this booklet. However, realize that some of the information you may need to draft a particular drawing or detail may be given in descriptions of other parts of the building. Therefore, you should read all the instructions before you actually begin drawing. Your job in this project is to use your drafting skills to clearly and completely reveal in the seven drawings all the verbal information presented here about the building s construction. You won t need to print or plot your drawing. When you re finished with the project, you ll submit the cover sheet at the back of this booklet and a disk containing the electronic data file for grading. 1

4 Your drawings will be for a two-story storage building with a flat roof. The roof is sloped so rainwater drains toward the building s center. The sides of the roof are about 25 to 30 higher than the roof s surface. The only opening into the building you ll be dealing with is a large sliding glass door on the first floor. The drawings will be drafted according to the instructions listed here. GENERAL SETUP Use the AutoCAD settings listed here when specifying your units and style. 1. Units. Set the architectural units to 64ths. Use surveyor s units for the system of angle measurement. 2. Style. Use ROMANS style with ROMANS font. Use 0.00 as text height and 1.00 as text width. Default through the remaining style settings. Use the information listed here when setting up your layers. 1. One of the best habits you can develop when using AutoCAD is that of carefully defining your layers. The layer names should be descriptive, and the color and linetype of all your entities should be assigned by layer. Thus, if one of your layers is named Concrete, and that layer is assigned the color yellow, than any entity drawn on that layer will be yellow. If you want to make all Concrete entities red, you can simply change the color in the Layer Control dialogue box to red. On the other hand, if you ve drawn a circle on the red Concrete layer but have assigned that circle the color green, to change the circle to a different color, you must actually change the color property of the circle to Bylayer. Developing the habit of assigning color and linetype by layer and using only descriptive layer names will help you keep the elements of your drawings standard. In addition, if you decide to exchange drawing files with drafters in other firms, the drafters will be able to easily change layer 2 Structural Drafting with AutoCAD

5 colors for plotting with their own plotters. Exchanging drawing files in this way is a common practice. Some government bureaus, for instance, may require copies of your electronic files when issuing building, sewer, or electrical permits. 2. We ll tell you what layers to use with the foundation plan (Plate 1) of this project. For the remainder of the drawings, you must create your own layers using the recommendations just described. Assign colors to the layers using the guidelines listed in Table 1. Table 1 LAYERS Use Red Yellow Green Cyan this Layer Color Linetype Thin Medium Thin Medium Thick Thick Notes: 1. Use thin lines for any small details, hidden lines, and very small text 2. Use medium thin lines for the normal outlines of objects and for normal text. 3. Use medium thick lines for any outlines to be emphasized and for large text. 4. Use thick lines for outlining the title block and for drawing the plate's outer border. BORDER AND TITLE BLOCK One of the many benefits of using AutoCAD is that you aren t restricted to the size of a drawing surface. Thus, you don t really need to plan your drawing for space available before you begin drafting. Initially, you can create all your drawings using actual measurements. For most of these drawings, you ll leave them in their actual measurements. A border (with a title block) will then be placed around each drawing at the proper scaling factor for plotting. As an alternative, you could scale a drawing down so that it fits within a certain border, and then plan to plot the drawing at a scale of 1 = 1. However, doing so alters the actual dimensions. If you later make any changes to the drawing, you ll find it more difficult to maintain accuracy. Structural Drafting with AutoCAD 3

6 Not all of the drawings in this project will have the same scale (for plotting), even though they ll all be drawn using actual measurements. The same border will be used for all your drawings; it can simply be scaled up to the proper size for each of them. Draw the border at a scale of 1 = 1 using the instructions listed here. 1. Draw the outside trim line using a polyline. Draw it on Layer Hidden, assigning this layer a red color and a hidden linetype. Make the dimensions for the trim line 11 high and 17 wide. 2. Draw a solid polyline border 1 / 2 inside the trim line. Draw it on Layer Border, assigning the layer a cyan color and a continuous linetype. As an alternative, you can OFFSET the trim line 1 / 2 and use CHPROP to change the new polyline to Layer Border. 3. Box out the title block by drawing a line 1 from the border s right side. Draw it on Layer Border2, assigning this layer a green color and a continuous linetype. As an alternative, you could OFFSET the border line 1, use CHPROP to change the new polyline to Layer Border2, EXPLODE the polyline, ERASE the top, and EXTEND the line to the cyan border. 4. Figure 1 shows how the title block will be divided into different sections. The line you ve just drawn is the top horizontal line in the figure, the line above the XXX where each plate s title will later be keyed in. Draw a line 1 / 4 away from the last line you drew. Draw it on Layer Border2. (In Figure 1, this is the line running under the XXX that holds the place for the title.) As an alternative to actually drawing this new line, you could simply OFFSET the last line drawn. FIGURE 1 When oriented so the text in the block is running from left to right, your title block will look similar to this. Fill in the information that will stay the same on each plate, and use XXX to hold the place for any information that will change from plate to plate. 4 Structural Drafting with AutoCAD

7 5. Create a Layer Text-Med, assigning it a yellow color and a continuous linetype. Find the exact center of the area formed between the last two lines drawn. (The dimensions of this area are 10 1 / 4.) Make text in this area using the DTEXT command, the Justify option, and the Middle option. Make the text 5 / 32 high with a north rotation angle. Type the letters XXX for your text. You ll be using this same border for the different drawings; therefore, you ll later need to change this text to each plate s actual title. 6. In the right corner of your title block, inside the cyan lines, make a square that s 3 / 4 on each side. The new line you need to draw to complete this square should be on Layer Border2. Type the text PLATE in the left corner of this square. Use the standard setting, and make the text left justified. The text should be 5 / 64 high with a north rotation angle. Put this text on Layer Text-Med. 7. Create a layer named Text-Large with a green color and a continuous linetype. In the middle of the square, prepare to type in some middle-justified text 3 / 16 high with a north rotation angle. Type XXX in the middle of the square. (You ll change this text later to each plate number.) 8. In your title block, section off the boxes containing the student number and scale. You could OFFSET a side of the plate-number box 2 1 / 16 farther into the title block. You ll then have created an area that s 3 /4 2 1 / 16. Draw a line to divide this area in half and so create two areas, each 3 / / With ORTHO on, copy the text PLATE into the area for your student number. Using DDEDIT, change the text to STUDENT NO. You can also quickly copy PLATE to the new location by using the ENDPOINT snap. 10. With ORTHO on, copy the text STUDENT NO. to the area in the box that you ll use to show the drawing s scale. Using DDEDIT, change the text to SCALE:. Structural Drafting with AutoCAD 5

8 11. Type XXX into the scale box you ve just created. Use the standard setting and make the text left justified. The text should be 3 / 32 high with a north rotation angle. Put this text on Layer Text-Med. You can later change this text to the scale for each plate. 12. With ORTHO on, copy the text XXX to the box for your student number. Use DDEDIT to change the new text to your actual student number. 13. OFFSET one side of the 3 / 4 square 4 11 / 32 toward the middle of the title block. Doing so creates the box for the program, title, and date. Create a layer named Text-Small with a red color and a continuous linetype. Using this layer, draw a line that s 9 / 64 away from the cyan border. Make the length of this line fit appropriately within the area. OFFSET this line 3 / 16 away, and OFFSET the new line another 3 / 16 away. These three lines are for the date, project title, and program name. You should have 15 / 64 between the line for the program name and the green Border2 line running under the drawing title. 14. Copy the text STUDENT NO. to the last red line you created. Edit the text to PROGRAM. Using the Multiple option, copy PROGRAM to the other two red lines. Edit the text on the middle line to TITLE and the text on the other line to DATE as shown in Figure Copy your student number to the program line. (This text, on layer Text-Med, should be 3 / 32 high with a north rotation angle. Use the LIST command to ensure the text has these features.) Change the text to read AutoCAD DRAFTING. 16. Using the Multiple option, copy AutoCAD DRAFT- ING to the other two red lines. Change the text on the middle red line to PROJECT 5, and change the text on the other line to XXX. You can change this text to the actual date when you complete your drawings. 6 Structural Drafting with AutoCAD

9 17. With ORTHO on, copy the nine entities you ve just created PROGRAM, TITLE, DATE, AutoCAD DRAFTING, PROJECT 5, XXX, and the three red lines to the area left in the title block. This area measures 3 / / 32. Edit the copied text as indicated in Table 2. Table 2 COMPLETING THE TITLE BLOCK Copied Text PROGRAM TITLE DATE AutoCAD DRAFTING PROJECT 5 XXX Change to DRAWN BY ADDRESS CITY Your name Your address Your city 18. With ORTHO on and using the Multiple copy option, copy the text CITY twice up along the line. Change the first copy of CITY to STATE, and change the other copy to ZIP. 19. Use the WBLOCK command to block the title block and the plate s border, naming it Titleblk. Now you can use the title block for each of your drawings. Structural Drafting with AutoCAD 7

10 DRAFTING THE FOUNDATION PLAN (PLATE 1) Draft the foundation plan at actual size. The dimensions of the building are given to the center of the structural steel columns. All of the columns in the building are I-beams with the designation of W For the dimensions associated with this designation, consult Appendix H in your supplement containing the appendices and glossary. Create a layer named W with the color yellow and a continuous linetype. The building has 20 steel columns 14 spaced around the building s perimeter and six within the interior. Arrange these I-beam columns on the foundation plan in four evenly spaced rows of five beams each. The distance between the center of the beams in adjacent rows is The distance between the center of adjacent beams in each row is also The overall dimensions of the building are therefore (Put your dimensions on layer Text-Med, with a yellow color and a continuous linetype.) When laid out on the foundation plan, the steel columns are shown with their flanges running horizontally. (In other words, when you view the plan with the drafting plate turned so that its long edge is on the bottom, the symbol you make for each steel column will look like an I. ) The dimensions of the concrete footings placed under all the steel columns are The steel columns are centered over these footings. (Create a layer called Footing, with a yellow color and a continuous linetype.) In between adjacent steel columns is a W12 45 steel girder. There are thus 31 of these girders. The girders support the building s second floor. Again, consult Appendix H in your appendices supplement for the dimensions for this structural steel shape. Draw the girders on a layer called Girders, with a green color and a continuous linetype. Running horizontally between adjacent girders are 24 steel channel beams. There are two channel beams in each 18-0 bay, and they re spaced 6-0 apart. The beam designation is C9 20, and its dimensions can be found in Appendix H. The channel beams rest on the 8 Structural Drafting with AutoCAD

11 bottom flanges of the girders. There s a 1 gap from the web of the girder to the end of the channel. Put these channel beams on layer C9 20, with a yellow color and a continuous linetype. Each channel beam is bolted to the girder with a 1 / 2 thick angle. Each leg of the angle is 4, and the angle is 6 wide. There are two angles used for each channel beam, one at either end of the channel. The angle is bolted to the backside of the channel using two 5 / 8 Ø bolts that are 2 1 / 2 long. Each bolt is positioned 1 1 / 2 away from the end of the angle as well as 1 1 / 2 away from the nearest side of the angle. Two more bolts with the same dimensions fasten the other leg of the angle to the web of the girder. These other two bolts are also positioned 1 1 / 2 away from the end of the angle as well as 1 1 / 2 away from the nearest side of the angle. The drawing would be plotted at a scale that will result in a finished plot. You can figure out an appropriate plotting scale by first inserting you Titleblk border into the drawing. 1. Insert the block at a scale of 1 = Instead of extension lines, draw centerlines up from the five I-beams at the top of your drawing. From the four I-beams on the left of the drawing, again draw centerlines instead of extension lines. 3. Mark off with a bubble each of the nine centerlines you ve extended out from the structure. At the top of the drawing, number the bubbles, from left to right, 1 through 5. At the left of the drawing, letter the bubbles, from top to bottom, A through D. Make the circle for each bubble and the text inside an appropriate size. 4. In a way similar to what s shown in Figure 21-20b (page 10 in Structural Drafting with Basic Architectural Applications), give the dimensions for the width and depth of the bays. For these dimensions, place your dimension lines between the perimeter of the structure and the numbered and lettered bubbles. Past the bubbles, place another set of dimension lines to show the width and depth of the entire structure. Structural Drafting with AutoCAD 9

12 5. Show two cutting plane symbols similar to the one shown as Option 3 in Figure 21-5 (page 4 in Structural Drafting with Basic Architectural Applications). The first section s letter is A, the sheet that locates the section is 1, and the sheet where the drawing of the section is shown is 3. Make the circle for the symbol and the text an appropriate height. Place the symbol so that it points to the top of your drawing, and place it between rows B and C. Show the section line cutting through the entire building. 6. The letter for the second section is B, the sheet that locates the section is 1, and the sheet where the drawing of the section is shown is 4. Copy the symbols you created for Section A, editing appropriately. Place the new symbol so that it points to the left, and place it between columns 2 and 3. Show the section line cutting through the entire building. 7. Place a north arrow at the bottom of your drawing so that it indicates the long side of the building (which will be at the top of the sheet) as the north elevation. Angle the north arrow slightly at a direction of N E. 8. Next to the north arrow, create the underlined text FOUNDATION PLAN. Put the text on layer Text- Large, with a green color and a continuous linetype. After you ve scaled the title block and placed it around the drawing, EXPLODE the block and edit the appropriate text. 1. Title this drawing FOUNDATION PLAN. 2. Fill in the scale. 3. Change the plate number to Structural Drafting with AutoCAD

13 DRAFTING THE SOUTH ELEVATION (PLATE 2) Some parts of the elevation can t be accurately described without examining the building s section. Use the information listed here, then either calculate the additional information you need or draw the building section first to reveal the information you re missing. The finish grade elevation is , the first-floor elevation is , and the second-floor elevation is The distance from the top of the footings to the finish grade is 4-0. A 2 4 keyway is centered at the top of each footing. Centered over each footing is a concrete pillar that s 16 wide on each side and 4-0 tall. At the 4-0 height, the concrete angles away from the pillars at the 45 angle for a vertical and horizontal distance of 6. This height marks the bottom of the 6 poured-in-place concrete slab making up the first floor. This concrete slab rests on an 8 thick layer of compacted sand, which rests on earth. The pillars at the four corners of the building are different from the other pillars. These corner pillars have a height of only 2-6 before the concrete begins to angle away. The concrete angles away from the pillar at a 45 angle for a vertical and horizontal distance of 2-0. A 4 drain is set around the outside of the building, with 3 clear above the footings to the drain and 3 clear from the pillars to the drain. The rebar in the bottom of the footings is #6 rebar at 8 OC both ways. The callout for the rebar is as follows: #6 8 O.C. BOTH WAYS There s 3 clear at the bottom of the footing and 3 clear all around. Vertical and horizontal rebar is placed in the pillar similar to that shown in Problem 21-4, (page 45 in Structural Drafting with Basic Architectural Applications). This rebar is also #6 rebar at 8 OC. The overlap of the rebar near the bottom of the pillar is approximately 2. Structural Drafting with AutoCAD 11

14 A steel plate is centered over each footing at the top of the first-floor concrete slab. The plate is / 2. The W steel column is welded to the plate. The weld is a 1 / 2 fillet weld. An example of how such a weld would look in a simple joint is shown here in Figure 2. The weld symbol as it should also appear in a detail of the joint on your drawing consists of an arrow, two triangular fillets, and the size designation. Note that the triangular shape appears on both sides of the horizontal line. The use of two triangles on the symbol indicates that the weld is made on the arrow side of the joint as well as on the opposite side. If the required weld were only on the arrow side of the joint, the triangle would appear on only the bottom part of the horizontal line. 1/2 FIGURE 2 Use a weld symbol like the one shown here on your detail of the connection between the steel column and the foundation. 1/2 LEG 1/2 LEG The plates are bolted to the concrete slab with two anchor bolts that are each 1 1 / 2 in diameter and 18 long. The bolts project out of the concrete slab 3 1 / 2. The bottom 4 segment of the bolt is bent horizontal, pointing toward the center of the building. The center of the bolt is 8 from the outside wall. The callout for these bolts is listed here. (2) 1-1 / 2 Ø 18 STD. AB. W/3-1 / 2 EA. COL. Metal siding (26 gage) is installed on both the outside and the inside of the building. The shape of the siding is similar to the steel deck shown in Figure (page 6 in Structural Drafting with Basic Architectural Applications). The vertical dimension from the bottom, or trough, of the siding to the siding s top, or crest, is 1 1 / 2. The slope of the angled portions is 60 from horizontal. 12 Structural Drafting with AutoCAD

15 The length of each horizontal section is 2, and the metal is 1 / 4 thick. The clear distance from the first floor to the bottom of the first-floor ceiling is 10. The clear distance from the second floor to the bottom of the second-floor ceiling is 8. The distance from the first floor to the top of the building is A supply entrance to the lower floor is on the building s south side. It s a sliding glass door centered between columns 3 and 4. The rough opening for the door is 12 wide and 8 high. Above the rough openings is a steel I-beam header, W The header is placed so that the flanges are horizontal and the web is vertical. The height of the header is 10 1 / 8. Several components of the building were described in this section of your project booklet. You ll use some of the information when drafting details later on. For your drawing of the building s south elevation, however, label only the items listed here, complete with their various size descriptions (such as 26 gage or the item s dimensions and so forth). 1. Door header sliding door, (The word sliding can be abbreviated SLD.) 3. Siding 4. Elevations of finish grade, first floor, and second floor. (The word elevation can be abbreviated ELEV.) In your drawing, remember to show the concrete footings, the steel columns, and the southern roofline as hidden lines. Use texture lines to show the siding in small patches only. Filling in the entire surface with texture lines on a drawing is unnecessary and can be visually distracting. Doing so may also conceal features that are shown only in that particular view. Show a line for the finish grade. Show a patch of earth below the finish grade. (Refer to Figure on page 31 of Structural Drafting with Basic Architectural Applications.) Structural Drafting with AutoCAD 13

16 After you ve scaled the title block and placed it around the drawing, EXPLODE the block and edit the appropriate text. 1. Title this drawing SOUTH ELEVATION. 2. Fill in the scale. 3. Change the plate number to 2. DRAFTING SECTION A (PLATE 3) You ll use the information given here extensively when drawing the building s details. For drawing the section, however, you ll need to be concerned primarily with the accuracy of overall dimensions. A section shows an overall view of how the building is constructed. Sometimes it s impossible to convey all the information about a building s construction in a full section. Some of the smaller features, therefore, may need to be omitted for clarity. In your drawing of Section A, you may choose which features to omit. The dimensions of these features, however, need to be taken into account to draw an accurate overall view. You may find it helpful to draft some or all of the details first, before drawing the section. The second floor is made up of a steel deck system similar to that shown in Figure 2112 (page 6 in Structural Drafting with Basic Architectural Applications). The rebar within the poured-in-place concrete slab is #4 rebar at 12 OC both ways. The steel decking has the same dimensions as the building s steel siding. Installed below the C9 20 beams are 1 / 2 ceiling tiles. The roof is also made up of a steel deck system. The top of the concrete slab, however, slopes toward the roof drain at a rate of 1 / 8 every 1-0. A roof drain is positioned between columns 2 and 3 and between rows A and B. The drain is similar to the one shown in the second part of Figure (page 6 in Structural Drafting with Basic Architectural Applications). Estimate the dimensions of the roof drain, and include the note ROOF DRAIN, SEE MECHANICAL DETAILS on your drawing. 14 Structural Drafting with AutoCAD

17 Welded wire fabric is part of the steel deck system for the roof. The wires are #12 gage, and the spacing is 6 on center. To see how welded wire fabric can be indicated on a drawing, look at Figure 21-8 (page 5 in Structural Drafting with Basic Architectural Applications). There s a 3 clearance from the edge of the wire fabric to the wall and a 3 clearance from the wire fabric to the bottom of the steel deck system. The outside walls of the building continue up beyond the roof, creating a short wall around the roof area. The top of the wall is capped with a 14 wide steel plate welded to the top end of the steel column. The weld is a 1 / 2 fillet weld. The 14 wide steel plate is 1 1 / 2 thick at its exterior edge and slopes toward the building interior at a rate of 1 /4 every 1-0. Flashing is installed over the plate and is sloped toward the building interior. The flashing is 1 / 4 thick and extends down the side of the walls approximately 8. Several details are circled on this view. The details are shown at a larger scale on other drafting plates. When indicating the details, circle the area to be shown and attach a detail bubble similar to the cutting plane bubble but without the arrow. (Refer again to Option 3 in Figure 21-5 on page 4 of your Structural Drafting study unit.) The first detail is the Roof Detail at the building s easternmost side. Letter this Detail C, and show it on Plate 5. The next detail is the second-floor connection at B4. Letter this Detail D, and show it on Plate 6. The next detail is the footing and first-floor connection at the building s easternmost side. Letter this Detail E, and show it on Plate 7. Label the elevations as well as the vertical dimensions. After you ve scaled the title block and placed it around the drawing, EXPLODE the block and edit the appropriate text. 1. Title this drawing SECTION A. 2. Fill in the scale. 3. Change the plate number to 3. Structural Drafting with AutoCAD 15

18 DRAFTING SECTION B (PLATE 4) Much of the work you did to produce Section A can be used again for Section B. Keep in mind, however, that several things will be different. For example, you ll be seeing the cross section of the channel beam instead of the flat side of the beam as shown in Section A. A detail is circled on this view. Again, use a detail bubble. The detail shows how one of the C9 20 beams connects to a girder. Letter this Detail F, and show it on Plate 6. Label the elevations as well as the vertical dimensions. After you ve scaled the title block and placed it around the drawing, EXPLODE the block and edit the appropriate text. 1. Title this drawing SECTION B. 2. Fill in the scale. 3. Change the plate number to 4. DRAFTING DETAILS C, C1, AND C2 (PLATE 5) Plate 5 contains three details. The first detail shows the top of the wall and details the connection of the roof to the outside wall. This detail is called the Roof Detail and, as usual, will be drawn at actual size. On this detail, however, you ll indicate two areas that will have further details. The first detail will be shown at twice its actual size, and the second detail will be shown at four times its actual size. (Be careful to remember that these two details are shown at different scales.) The first of these two details is the Cap Detail, which you should label C1. The second detail is the Connection Detail, which you should label C2. Plate 5 would be plotted at a scale of 1 / 2 = 1-0. To determine what scale the title block should be, calculate how many one-half inches are in one foot. This calculation will give you the appropriate ratio number. After you determine the proper ratio, set the LTSCALE to this number, and figure out the text height you want to use. 16 Structural Drafting with AutoCAD

19 For the Roof Detail, which is labeled C, indicate the items listed here, along with their size descriptions. 1. Poured-in-place concrete slab, sloped 1 / 8 every 1-0 toward the roof interior 2. Welded wire fabric 3. Ceiling tiles 4. C9 20 beam 5. Steel decking 6. Metal siding 7. Steel column For the Cap Detail, which is labeled C1, indicate the items listed here, along with their size descriptions. 1. Flashing wide steel plate For the Connection Detail, which is labeled C2, indicate the items listed here, along with their size descriptions. 1. Interior metal siding 2. Exterior metal siding 3. The angle 4. Width of the angle 5. Bolts 6. Measurements for the placement of the bolts 7. Clearance of the beam from the girder 8. Clearance of the welded wire fabric from the edge of the concrete 9. Clearance of the welded wire fabric from the top of the beam Arrange the three details into the space available within the frame that contains your title block. Ensure the details are spaced appropriately and that the entire drawing is easy to read. Structural Drafting with AutoCAD 17

20 When you re satisfied with the placement of the details and callouts, EXPLODE the block and edit the appropriate text. 1. Title this drawing ROOF DETAILS. 2. Designate the scale as VARIES. 3. Change the plate number to 5. DRAFTING CONNECTION DETAILS D, D1, F, F1 (PLATE 6) Plate 6 displays four connection details. Two of these details (lettered D and F) contain the connections enlarged in Details D1 and F1. Connection Detail D shows the connection at B4 from Plate 3. This connection detail is drawn actual size. Indicate on it the area for Detail D1, which will show the connection of the beams to the girder at four times the actual size. Connection Detail F shows the connection of the C9 20 beam from Plate 4. Like Detail D, Connection Detail F is drawn at actual size. On this detail, indicate the area for Detail F1, which will show the connection of the beam to the girder at four times the actual size. Thus, two of the four details on Plate 6 won t be done at actual size. Plate 6 would be plotted at a scale of 1/2 = 1-0. To determine what scale the title block should be, calculate how many one-half inches are in one foot. This calculation will give you the appropriate ratio number. After you determine the proper ratio, set the LTSCALE to this number, and figure out the text height you want to use. For Connection Detail D, indicate the items listed here, along with their size descriptions. 1. Poured-in-place concrete slab 2. Rebar 3. Ceiling tiles 4. Beam 5. Steel decking 6. Siding 7. Steel column 18 Structural Drafting with AutoCAD

21 For Connection Detail D1, indicate the items listed here, along with their size descriptions. 1. Clearance of rebar to top of beam 2. Beam 3. Girder 4. The angle 5. Width of the angle 6. Bolts 7. Placement of the bolts 8. Clearance of the beam from the girder For Connection Detail F, indicate the items listed here, along with their size descriptions. 1. Concrete slab 2. Rebar 3. Ceiling tiles For Connection Detail F1, indicate the items listed here, along with their size descriptions. 1. Beam 2. Decking 3. Girder 4. Clearance of the rebar from the girder 5. The angle 6. Width of the angle 7. Bolts 8. Placement of the bolts Arrange the four details into the space available within the frame that contains your title block. Ensure the details are spaced appropriately and that the entire drawing is easy to read. Structural Drafting with AutoCAD 19

22 When you re satisfied with the placement of the details and callouts, EXPLODE the block and edit the appropriate text. 1. Title this drawing CONNECTION DETAILS. 2. Designate the scale as VARIES. 3. Change the plate number to 6. DRAFTING FOUNDATION DETAILS E AND E1 (PLATE 7) Plate 7 displays two details: a foundation detail and a connection detail. The foundation detail, lettered E, shows the outside footing, pillar, and column connection at the first floor. Draw this detail at actual size. Indicate on it the area for Detail E1, which will show the connection of the steel column to the first floor at four times its actual size. Remember that this connection detail isn t drawn at actual size. Plate 7 would be plotted at a scale of 1 / 2 = 1-0. To determine what scale the title block should be, calculate how many one-half inches are in one foot. This calculation will give you the appropriate ratio number. After you determine the proper ratio, set the LTSCALE to this number, and figure out the text height you want to use. For Foundation Detail E, indicate the items listed here, along with their size descriptions. 1. Steel column 2. Metal siding 3. Concrete slab 4. Dimensions of concrete slab 5. Rebar 6. Sand 7. Dimensions for compacted sand 8. Finish grade 9. Footing 10. Dimensions of footing 20 Structural Drafting with AutoCAD

23 11. Keyway 12. Rebar in footing 13. Dimensions of rebar in footing 14. Clearances of rebar in footing 15. The 4 drain 16. Clearances for the 4 drain 17. Rebar in pillar 18. Clearances of rebar in pillar 19. Dimensions of the pillar 20. Distance from the top of the footing to the first floor 21. Distance from the top of the footing to 45 angle 22. Distance from 45 angle to bottom of concrete slab For Connection Detail E1, indicate the items listed here, along with their size descriptions. 1. Steel column 2. Metal siding 3. Anchor bolt 4. Plate 5. Weld symbol 6. First floor 7. Finish grade 8. Distance finish grade to first floor 9. Distance from center of anchor bolt to exterior edge if concrete 10. Distance from center of anchor bolt to end of anchor bolt. Note that this anchor bolt is bent horizontal near its end. Arrange the two details into the space available within the frame that contains your title block. Ensure the details are spaced appropriately and that the entire drawing is easy to read. Structural Drafting with AutoCAD 21

24 When you re satisfied with the placement of the details and the callouts, EXPLODE the block and edit the appropriate text. 1. Title the drawing FOUNDATION DETAILS. 2. Designate the scale as VARIES. 3. Change the plate number to 7. INSPECTING YOUR WORK Before sending your cover sheet and disk for grading, examine your drawings for any errors. Make sure your name and student number appear on the disk label and on the cover sheet. As part of your inspection, consider the following points: Check for correct shape, size, and placement of entities. Exact placement can be confirmed by checking the coordinates of all lines, points, and arcs. Check that the entities are on the right layers. Check to ensure your blocks are the correct size. Use the ERASE command to delete any unwanted marks. Make sure your name and student number appear on the disk label and on the cover sheet. When you feel confident that your work is complete, save the drawing file to a floppy disk. Submit this disk and your cover sheet for grading your work. Send in this material as soon as you complete the project. Don t wait until your work on the next project is finished. 22 Structural Drafting with AutoCAD

25 FOR YOUR INSTRUCTOR'S USE GRADE GRADED BY STUDENT NUMBER: PLEASE PRINT Drafting with AutoCAD NAME ADDRESS CITY STATE/PROVINCE ZIP/POSTAL CODE Check if this a new address. P HONE Cut Along This Line. Project Booklet Structural Drafting with AutoCAD Grading Criteria Your drawing will be graded on the following criteria: Completeness of drawings 20 points Completeness of the title blocks 20 points Accuracy of the Labels 20 points Correct layering of objects 20 points Overall appearance 20 points TOTAL Comments PLEASE FOLD THIS COVER SHEET INTO THE DISK MAILER WITH YOUR DISK CONTAINING YOUR COMPLETED DRAWING FILE. ALSO, BE SURE TO WRITE YOUR NAME AND STUDENT NUMBER ON THE DISK LABEL AND IN THE SPACES PROVIDED ON THIS COVER SHEET. MAIL YOUR COMPLETED PROJECT TO Penn Foster Student Service Center 925 Oak Street Scranton, PA 18515