Method and apparatus for designing a distribution system for a building

• US 5,227,983 A
• Filed: 12/07/1992
• Issued: 07/13/1993
• Est. Priority Date: 07/12/1990
• Status: Expired due to Term

• Current Assignee: First Graphics Incorporated
• Original Assignee: First Graphics Incorporated
• Inventors: Cox, Gene M., Hines, Charles L. III, Normann, Linda M.
• Primary Examiner(s): Black, Thomas G.
• Assistant Examiner(s): PARK, COLLIN
• Application Number:
  US07/989,478
• Time in Patent Office: 218 Days
• Field of Search: 364/512, 364/578, 364/505, 364/226.7, 364/917.96, 364/488, 434/72, 434/428, 434/75, 434/79
• US Class Current: 703/1
• CPC Class Codes: G06F 30/13 Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• CPC Class Codes: G06F 30/18 Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling circuit design at the physical level G06F30/39; network planning tools for wireless communication networks H04W16/18

Abstract

A method and apparatus for designing a distribution system for a building is disclosed. Elements of such distribution systems and requirements of relevant standard, are stored in a computer'"'"'s memory. Building parameters are entered into a computer manually. The user selects the standard to be followed and the element to be optimized. The system divides the building into sections as appropriate to the user selected standard. The system then computes layout needed to comply with the selected standard. The layout is routed and sized to avoid building structural members, yet the elements of the layout are optimized for size and length. The apparatus prints out a hard copy of the design layout which can include an elements listing needed to complete the system.

Claims

1. A method for designing a distribution system and producing a layout of the system for a building or a portion of a building, the method comprising in combination the steps of:

(a) storing, in digital form in first memory means, generic dimensional requirements of elements from which distribution systems can be constructed;

(b) storing, in digital form in second memory means, requirement of at least one building standard from which distribution systems can be evaluated;

(c) entering input data into a computer operatively connected to the first and second memory means, the input data including the location and dimensions of building elements and adjuncts of the building;

(d) identifying the requirements of at least one building standard stored in the second memory means to be used;

(e) dividing the building into a plurality of sections based on the input data; and

(f) electronically designing a layout from the distribution system in each section using the generic dimensional requirements of the elements stored in the first memory means, the layout being designed to comply with the requirements of the at least one building standard.

2. The method of claim 1 wherein the step of electronically designing the layout for the computer further comprises generating from the designed layout hard copy detailing the distribution system.

3. The method of claim 2 wherein the step of generating hard copy further comprises printing out an elements listing, the elements listing being printed out in the order the elements will be used.

4. The method of claim 1 further comprising the steps of manually editing the layout and electronically checking the edited layout for compliance with the requirements of the at least one building standard.

5. The method of claim 1 where the first and second memory means comprise a non-volatile memory system.

6. The method of claim 1 wherein the distribution system is a heating and air conditioning system.

7. The method of claim 1 wherein the building elements and adjuncts includes beams, columns, girders, floors, ceilings, electrical systems, phone lines and walls.

8. The method of claim 7 wherein the distribution system is a sprinkler system for fire prevention.

9. The method of claim 8 wherein the elements comprise piping components of the sprinkler system.

10. The method of claim 8 wherein the step of dividing the building into a plurality of sections further comprises first dividing the building into bays which are defined by the beams which are oriented horizontally whereby the bays define the sections.

11. The method of claim 8 wherein the step of dividing the building into sections further comprises dividing the building into rooms which are defined by the walls wherein the rooms define the sections.

12. The method of claim 1 wherein the step of electronically designing the layout further comprises performing an obstructions analysis to ensure the layout does not intersect with the building elements and adjuncts.

13. The method of claim 1 wherein the step of entering the input data further comprises choosing any one of the elements to be optimized.

14. The method of claim 1 wherein the distribution system is a sprinkler system for fire prevention, and the building elements and adjuncts include beams, columns, girders, floors, ceilings, electrical systems, phone lines and walls;

further wherein the step of electronically designing the layout for each section further comprises;

calculating the number of lines needed and the minimum distance between the lines in the section from the selected standard;

locating the lines in the section to avoid intersecting with building elements and adjuncts;

calculating the number of heads needed and the minimum distance between the heads to comply with the selected standard;

locating the heads on the lines to avoid intersecting with building elements and adjuncts;

calculating the number of mains needed to adequately supply the heads with water;

locating the mains in the section to avoid intersecting with building elements and adjuncts; and

selecting proper fittings to connect the heads to the lines and the lines to the mains.

15. The method of claim 14 wherein the step of calculating the number of lines and the distance between the lines further comprises determining the orientation of the beams as the lines will be oriented parallel to the beam;

dividing the width of the section by a distance between the lines given by the identified standard then rounding up to a whole number, whereby the whole number is equal to the number of lines; and

dividing the whole number into the width of the section;

whereby deriving a minimum distance between lines.

16. The method of claim 15 wherein the step of calculating the number of heads per line and the minimum distance between the heads further comprises multiplying the length of the section by the minimum distance between the lines and then dividing the result by the maximum area a head is to cover from the selected standard and rounding up to a whole number, whereby the whole number is equal to the number of heads and selecting a minimum distance between the heads which is the lesser of:

dividing the whole number into the length of the section;

dividing the maximum area of a head by the minimum distance between the lines; and

a maximum distance between heads from the selected standard.

17. The method of claim 16 wherein the step of calculating the number of mains per line which is one if the number of heads per line is seven or less and two if greater than seven.

18. The method of claim 17 wherein the step of electronically designing the layout further comprises performing a hydraulic analysis of the layout to determine compliance with the selected standard.

19. The method of claim 14 wherein the step of locating the calculating number of lines in the section further comprises:

calculating the distance of a first line from the first lengthwise wall of the section by dividing the minimum distance by two;

locating the first line parallel to the first lengthwise wall at the calculated distance;

electronically checking the location of the first line to determine if it intersects the building elements and adjuncts whereby if the first line does intersect the structural element;

the first line is relocated an incremental unit of distance further from the first lengthwise wall such that the total distance from the first lengthwise wall does not exceed the maximum distance, such relocation continuing until the first line does not intersect the building elements and adjuncts;

locating subsequent lines parallel to the first lengthwise wall and spaced the minimum distance from the preceding line; and

electronically checking the location of the subsequent line to determine if it intersects the building elements and adjuncts whereby if the subsequent line does intersect the structural element the subsequent line is relocated an incremental unit of distance further from the preceding line such that the total distance from the preceding line does not exceed the maximum distance, such relocation continuing until the subsequent line does not intersect the building elements and adjuncts, the locating of the subsequent lines being continued until the calculated number of lines is positioned.

20. The method of claim 19 wherein the step of locating the calculated number of heads in the section further comprises:

calculating the distance of a head from a widthwise wall of the section by dividing the minimum distance between heads by two;

locating the first head of a line on the line at the calculated distance;

electronically checking the location of the first head to determine if the first head intersects the building elements and adjuncts whereby if the first head does intersect the structural element the first head is relocated an incremental unit of distance further from the widthwise wall such that the total distance from the widthwise wall does not exceed the maximum distance between heads, such relocation continuing until the first head does not intersect the building elements and adjuncts;

locating subsequent heads along the line spaced the minimum distance from a preceding head; and

electronically checking the location of the subsequent head to determine if the subsequent head intersects the building elements and adjuncts whereby if the subsequent head does intersect the structural element the subsequent head is relocated an incremental unit of distance further from the preceding head such that the total distance from the preceding head does not exceed the maximum distance between heads, such relocation continuing until the subsequent head does not intersect the building elements and adjuncts, locating the subsequent heads continuing until the calculated number of heads is positioned.

21. The method of claim 20 wherein the step of locating the mains further comprises:

locating the mains perpendicular to the lines from a position located between the first line and the first lengthwise wall to a position located between the subsequent line corresponding to the calculated number of lines and the second lengthwise wall; and

if only one main is used, dividing the number of heads by two and truncating to an integer value, the main being placed between the head corresponding to the integer value and the head corresponding to the integer value plus one as counted the first head;

if there are eight or nine heads, locating one main between the first head and the wall and locating the second main between the seventh and eighth heads as counted from the first head; and

if there are ten or more heads, locating one main between the second and third head and locating the second main between the second to last and the third to last head as counted from the first head.

22. The method of claim 21 wherein the hydraulic analysis is a Newton-Raphson treatment.

23. The method of claim 21 wherein the hydraulic analysis is a Hardy-Cross treatment.

24. The method of claim 21 wherein performing a hydraulic analysis further comprises selecting the head furthest from the main, calculating the hydraulic pressure at the furthest head and evaluating whether the calculated pressure is adequate to allow the head to function properly.

25. An apparatus for designing a distribution system and producing a layout of the system for a building or a portion of a building, the apparatus comprising:

(a) first memory means for storing in digital form generic dimensional requirements of elements from which the distribution system can be constructed;

(b) second memory means for storing in digital form requirements of at least one building standard from which the distribution system can be evaluated;

(c) means for entering input data into a computer operatively connected to the first and second memory means, the input data including the location and dimensions of building elements and adjuncts of the building;

means for identifying the requirement of at least one building standard stored in the second memory means to be used;

(e) means for dividing the building into a plurality of sections based on the input data; and

(f) means for electronically designing a layout for the distribution system in each section to comply with the selected building standard.

26. The apparatus of claim 25 wherein the means for electronically designing the layout for the computer further comprises means for generating from the designed layout hard copy detailing the distribution system.

27. The apparatus of claim 26 wherein means for generating hard copy further comprises means for printing out an elements listing, the elements listing printed out in the order the elements will be used.

28. The apparatus of claim 25 further comprising means for manually editing the layout and electronically checking the edited layout for compliance with the requirements of at least one building standard.

29. The apparatus of claim 25 wherein the first and second memory means comprises a non-volatile memory system.

30. The apparatus of claim 25 wherein the distribution system is a heating and air conditioning system.

31. The apparatus of claim 25 wherein the building elements and adjuncts include beams, columns, girders, floors, ceilings, electrical systems, phone lines and walls.

32. The apparatus of claim 31 wherein the distribution system is a sprinkler system for fire prevention.

33. The apparatus of claim 32 wherein the elements comprise piping components for the sprinkler system.

34. The apparatus of claim 33 wherein the means for dividing the building into a plurality of sections further comprises means for dividing the building into bays which are defined by the beams which are oriented horizontally whereby the bays define the sections.

35. The apparatus of claim 33 wherein the means for dividing the building into sections further comprises means for dividing the building into room which are defined by the walls wherein the rooms define the sections.

36. The apparatus of claim 35 wherein the means for electronically designing the layout for each section further comprises:

means for calculating the number of lines needed and the minimum distance between the lines in the section from the selected standard;

means for locating the lines in the section to avoid intersecting with building elements and adjuncts;

means for calculating the number of heads needed and the minimum distance between the heads to comply with the selected standard;

means for locating the heads on the lines to avoid intersecting with building elements and adjuncts;

means for calculating the number of mains needed to adequately supply the heads with water;

means for locating the mains in the section to aovid intersecting with building elements and adjuncts; and

means for selecting proper fittings to connect the heads to the lines and the lines to the mains.

37. The apparatus of claim 36 herein means for calculating the number of lines and the distance between the lines further comprises means for determining the orientation of the beams as the lines will be oriented parallel to the beams, means for dividing the width of the section by a distance between the lines given by the identified standard then rounding up to a whole number, whereby the whole number is equal to the number of lines;

and means for dividing the whole number into the width of the section, whereby deriving a minimum distance between lines.

38. The apparatus of claim 37 wherein means for locating the calculated number of lines in the section by further comprises:

means for calculating the distance of a first line from the first lengthwise wall of the section by dividing the minimum distance by two;

means for locating the first line parallel to the first lengthwise wall at the calculated distance;

means for electronically checking the location of the first line to determine if it intersects the building elements and adjuncts whereby if the first line does intersect the structural element the first line is relocated an incremental unit of distance further from the first lengthwise wall such that the total distance from the first lengthwise wall does not exceed the maximum distance, such relocation continuing until the first line does not intersect the building elements and adjuncts;

the

means for locating of subsequent lines being parallel to the first lengthwise wall and spaced the minimum distance from a preceding line; and

means for electronically checking the location of the subsequent line to determine if it intersects the building elements and adjuncts whereby if the subsequent line does intersect the structural element the subsequent line is relocated an incremental unit of distance further from the preceding line such that the total distance from the preceding line does not exceed the maximum distance, such relocation continuing until the subsequent line does not intersect the building elements and adjuncts, the locating of the subsequent lines being continued until the calculated number of lines is positioned.

39. The apparatus of claim 38 wherein the means for calculating the number of heads per line and the minimum distance between the heads further comprises means for multiplying the length of the section by the minimum distance between the lines and then dividing the result by the maximum area a head is to cover from the selected standard and rounding up to a whole number, whereby the whole number is equal to the number of heads and selecting a minimum distance between the heads which is the lesser of:

dividing the whole number into the length of the section;

dividing the maximum area of a head by the minimum distance between the lines; and

a maximum distance between heads from the selected standard.

40. The apparatus of claim 39 wherein the means for locating the calculated number of heads in the section further comprises:

means for calculating the distance of a head from a widthwise wall of the section by dividing the minimum distance between heads by two;

means for locating the first head of a line of the line at the calculated distance;

means for electronically checking the location of the first head to determine if the first head from the first head intersects the building elements and adjuncts whereby if the first head does not intersect the structural element the first head is relocated an incremental unit of distance further from the widthwise wall such that the total distance from the widthwise wall does not exceed the maximum distance between heads, such relocation continuing until the first head does not intersect the building elements and adjuncts;

means for locating subsequent heads along the lines spaced the minimum distance from a preceding head; and

means for electronically checking the location of the subsequent head to determine if the subsequent head intersects the building elements and adjuncts whereby if the subsequent head does intersect the structural element the subsequent head is related an incremental unit of distance further from the preceding head such that the total distance from the preceding head does not exceed the maximum distance between heads, such relocation continuing until the subsequent head does not intersect the building elements and adjuncts, locating the subsequent heads continuing until the calculated number of heads is positioned.

41. The apparatus of claim 40 wherein the number of mains per line is one of the number of heads per line is sever or less and two is greater than seven.

42. The method of claim 41 wherein the means for locating the mains further comprises:

means for locating the mains perpendicular to the lines from a position located between the first line and the first lengthwise wall to a position located between the subsequent line corresponding to the calculated number of lines and the second lengthwise wall; and

if only one main is used, dividing the number of heads by two and truncating to an integer value, the main being placed between the head corresponding to the integer value and the head corresponding to the integer value plus one as counted the first head;

if there are eight or nine heads, locating one main between the first head and the wall and locating the second main between the seventh and eighth heads as counted from the first head; and

if there are ten or more heads, locating one main between the second and third head and locating the second main between the second to last and the third to last head as counted from the first head.

43. The apparatus of claim 42 wherein the means for electronically designing the layout further comprises means for performing a hydraulic analysis for the layout to determine compliance with the selected standard.

44. The apparatus of claim 43 wherein the hydraulic analysis is a Newton-Raphson treatment.

45. The apparatus of claim 43 wherein the hydraulic analysis is a Hardy-Cross treatment.

46. The apparatus of claim 43 wherein the means for performing a hydraulic analysis comprises means for selecting the head furthest from the main and means for calculating the hydraulic pressure at the furthest head and means for evaluating whether the calculated pressure is adequate to allow the head to function properly.

47. The apparatus of claim 25 wherein means for electronically designing the layout further comprises means for performing an obstruction analysis to ensure the layout does not intersect with the building elements and adjuncts.

48. The apparatus of claim 25 wherein means for entering the input data further comprises means for choosing any of the elements to be optimized.