Download Brickwork 1 and Associated Studies by Harold Bailey, David Hancock PDF

By Harold Bailey, David Hancock

In 3 very good, modern concise volumes the authors deal thouroghly with brickwork and its linked matters. the coed is supplied with an creation to the undefined, the exchange, the talents and the buildings, and reflecting the Nineties, emphasise protection facets and concerns. contains multi selection questions and solutions.

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Extra resources for Brickwork 1 and Associated Studies

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67). 2 m , \ \ I t, \ \ JX , "'- / ......... - . 25 m . 6 m; calculate the length of the trammel rod required. 70. 5m (l_30m \ \ , ", ...... 68 Figure 2. 70 Setting out using trammel and measuring tope Measurement of curves is often necessary when setting out buildings or when quantities are required. The following factors must first be determined 36 Brickwork I and AssocIated Studies (1) length of radius (2) the angle between the radii of the sector (this is termed theta and is shown by the symbol O).

2) Hold the staff on datum; take a reading. (3) Move the staff on to the other points in turn and record the readings. ). Readings are 'booked' as they are taken and may be reduced in one of two ways: the 'collimation height' method or the 'rise and fall method', details of both of these methods being given in advanced texts. Using the tilting level is the best method of determining the difference in level of two points some distance apart. 65 I. 63 33 100m 34 Brickwork 1 and Associated Studies SETTING OUT PROJECTIONS When setting out trenches for buildings that have projections, it is usual for the type of foundation structure to determine the method of setting out.

3) Hook the tape on this nail and approximately mark the length of the front of the building by driving peg 2 under the ranging line and level with peg 1. Pull the tape taut and drive the second nail half-way into the peg. (4) Set up a builder's square on packings so that one of its legs is parallel to the building line and its corner is positioned at the main setting-out point nail (peg 1). (5) Attach a line to the nail at peg 1, and mark the position of peg 3. 39 If we are to position the building accurately, for both horizontal and vertical setting out, then the top surface of every profile board must be level within itself, and level with every other profile board used.

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