Method of evaluating and classifying living structures for estimating potential damage thereto from physical disturbances

• US 5,842,148 A
• Filed: 10/07/1996
• Issued: 11/24/1998
• Est. Priority Date: 10/07/1996
• Status: Expired due to Fees

• Current Assignee: JCP Geologists, Inc. (CoreLogic Incorporated)
• Original Assignee: JCP Geologists, Inc. (CoreLogic Incorporated)
• Inventors: Prendergast, James C., Ransbottom, Leslie N., Dibble, Walter E.
• Primary Examiner(s): Trammell, James P.
• Assistant Examiner(s): Smithers, Matthew
• Application Number:
  US08/726,693
• Time in Patent Office: 778 Days
• Field of Search: 364/506, 364/508, 73/769, 73/786, 73/800, 73/570, 73/584, 73/594, 73/760, 73/806, 702/14, 702/42, 702/34, 701/29, 340/438, 705/4
• US Class Current: 702/34
• CPC Class Codes: E02D 27/34 Foundations for sinking or earthquake territories building constructions with protection arrangements against earthquakes E04H9/02
• CPC Class Codes: G01M 5/0016 of aircraft wings or blades
• CPC Class Codes: G01M 5/0033 by determining damage, crack or wear

Abstract

Residential wood home structures are evaluated and classified according to a defined risk level relative to damage likely to be caused by earthquake shaking or wind forces. Susceptibility to damage is evaluated and predicted by a probabilistic software engine based on existing databases of geologic and/or wind data coupled with specific structural characteristics information obtained by an onsite inspection of the structure. The software engine combines these data sets, and produces a report with a reliable, quantified risk rating that can be used by insurance companies to make decisions regarding offering of insurance and rates of insurance. The report is also used by homeowners as an evaluation factor in deciding to strengthen the structure against earthquake and/or wind storm damage. Because of its high volume capability and affordability, this inventive process makes assessment of a home'"'"'s risk relative to damage induced by earthquake shaking and/or wind forces available to a larger segment of the general market, including home owning and home buying persons.

Claims

1. A method for estimating risk of damage likely to be sustained by a structure located at a particular site from a physical disturbance, said method including the steps of:

inspecting said structure at said site to determine its structural characteristics; and

collecting structure data pertaining to the structural characteristics of said structure; and

inputting the structure data in a format usable by a computer; and

generating an estimate of risk of damage to said structure, wherein the estimate is generated by a computer program based on a combination of the structure data and physical disturbance related information for said site;

wherein the computer program includes a probabilistic software engine, and said probabilistic software engine analyzes and combines the structural characteristics data with seismic related databases to generate a rating for said structure.

2. The method of claim 1, wherein the seismic databases include information pertaining to earthquake faults in the vicinity of said site, probable type and size of earthquakes in the vicinity of said site, earthquake recurrences in the vicinity of said site, and geologic conditions of said site.

3. The method of claim 2, wherein the seismic related information for said site is derived from one or more databases such as USQUAKE.

4. The method of claim 1, wherein the structural characteristics data includes data relating to frame characteristics, wall characteristics, foundation characteristics, cripple wall characteristics, roof characteristics and soft story characteristics.

5. The method of claim 1, further including the step of collecting building code data and empirical damage historical data for such structure to be used by the computer program to generate the risk estimate.

6. The method of claim 1, wherein the risk estimate includes information pertaining to the likelihood of said physical disturbance occurring, potential damage likely to be caused by said disturbance, and probable financial harm resulting from such damage.

7. The method of claim 6, wherein the risk estimate further includes an acceptable or unacceptable rating for such structure, and such rating can be used for actuarial purposes for such structure.

8. The method of claim 1, wherein the computer program further generates a report having information on defects in said structure, and recommendations for curing such defects.

9. A method for estimating risk of damage likely to be sustained by a structure located at a particular site from a physical disturbance, said method including the steps of:

inspecting said structure at said site to determine its structural characteristics; and

collecting structure data pertaining to the structural characteristics of said structure; and

inputting the structure data in a format usable by a computer; and

generating an estimate of risk of damage to said structure, wherein the estimate is generated by a computer program based on a combination of the structure data and physical disturbance related information for said site;

wherein the computer program includes a probabilistic software engine, and said probabilistic software engine analyzes and combines the structural characteristics data with wind force related databases to generate a rating for said structure.

10. The method of claim 9, wherein the wind force related information for said site is derived from one or more databases such as USWIND.

11. The method of claim 9, wherein the structural characteristics data includes data relating to frame characteristics, wall characteristics, foundation characteristics, cripple wall characteristics, roof characteristics and soft story characteristics.

12. The method of claim 9, further including the step of collecting building code data and empirical damage historical data for such structure to be used by the computer program to generate the risk estimate.

13. The method of claim 9, wherein the risk estimate includes information pertaining to the likelihood of said physical disturbance occurring, potential damage likely to be caused by said disturbance, and probable financial harm resulting from such damage.

14. The method of claim 13, wherein the risk estimate further includes an acceptable or unacceptable rating for such structure, and such rating can be used for actuarial purposes for such structure.

15. The method of claim 9, wherein the computer program further generates a report having information on defects in said structure, and recommendations for curing such defects.

16. A method for estimating risk of damage likely to be sustained by a structure located at a particular site from a physical disturbance, said method including the steps of:

inspecting said structure at said site to determine its structural characteristics; and

collecting structure data pertaining to the structural characteristics of said structure; and

inputting the structure data in a format usable by a computer; and

generating an estimate of risk of damage to said structure, wherein the estimate is generated by a computer program based on a combination of the structure data and physical disturbance related information for said site;

wherein the risk estimate includes information pertaining to the likelihood of said physical disturbance occurring, potential damage likely to be caused by said disturbance, and probable financial harm resulting from such damage;

wherein the risk estimate further includes an acceptable or unacceptable rating for such structure, and such rating can be used for actuarial purposes for such structure.

17. The method of claim 16, wherein the structural characteristics data includes data relating to frame characteristics, wall characteristics, foundation characteristics, cripple wall characteristics, roof characteristics and soft story characteristics.

18. The method of claim 16, further including the step of collecting building code data and empirical damage historical data for such structure to be used by the computer program to generate the risk estimate.

19. The method of claim 16, wherein the computer program includes a probabilistic software engine, and said probabilistic software engine analyzes and combines the structural characteristics data with seismic related databases to generate the rating for said structure.

20. The method of claim 19, wherein the seismic databases include information pertaining to earthquake faults in the vicinity of said site, probable type and size of earthquakes in the vicinity of said site, earthquake recurrences in the vicinity of said site, and geologic conditions of said site.

21. The method of claim 20, wherein the seismic related information for said site is derived from one or more databases such as USQUAKE.

22. The method of claim 16, wherein the computer program includes a probabilistic software engine, and said probabilistic software engine analyzes and combines the structural characteristics data with wind force related databases to generate the rating for said structure.

23. The method of claim 22, wherein the wind force related information for said site is derived from one or more databases such as USWIND.

24. The method of claim 16, wherein the computer program further generates a report having information on defects in said structure, and recommendations for curing such defects.

25. The method of claim 16, wherein said structure is a residential wood frame structure inspected onsite by a visual examination.

26. A method for estimating risk of damage likely to be sustained by a structure located at a particular site from a physical disturbance, said method including the steps of:

inspecting said structure at said site to determine its structural characteristics; and

collecting structure data pertaining to the structural characteristics of said structure; and

inputting the structure data in a format usable by a computer; and

generating an estimate of risk of damage to said structure, wherein the estimate is generated by a computer program based on a combination of the structure data and physical disturbance related information for said site;

wherein said structure is a residential wood frame structure inspected onsite by a visual examination.

27. The method of claim 26, wherein the structural characteristics data includes data relating to frame characteristics, wall characteristics, foundation characteristics, cripple wall characteristics, roof characteristics and soft story characteristics.

28. The method of claim 26, further including the step of collecting building code data and empirical damage historical data for such structure to be used by the computer program to generate the risk estimate.

29. The method of claim 26, wherein the computer program includes a probabilistic software engine, and said probabilistic software engine analyzes and combines the structural characteristics data with seismic related databases to generate a rating for said structure.

30. The method of claim 29, wherein the seismic databases include information pertaining to earthquake faults in the vicinity of said site, probable type and size of earthquakes in the vicinity of said site, earthquake recurrences in the vicinity of said site, and geologic conditions of said site.

31. The method of claim 30, wherein the seismic related information for said site is derived from one or more databases such as USQUAKE.

32. The method of claim 26, wherein the computer program includes a probabilistic software engine, and said probabilistic software engine analyzes and combines the structural characteristics data with wind force related databases to generate a rating for said structure.

33. The method of claim 32, wherein the wind force related information for said site is derived from one or more databases such as USWIND.

34. The method of claim 26, wherein the risk estimate includes information pertaining to the likelihood of said physical disturbance occurring, potential damage likely to be caused by said disturbance, and probable financial harm resulting from such damage.

35. The method of claim 34, wherein the risk estimate further includes an acceptable or unacceptable rating for such structure, and such rating can be used for actuarial purposes for such structure.

36. The method of claim 26, wherein the computer program further generates a report having information on defects in said structure, and recommendations for curing such defects.

37. A method for estimating risk of damage to a wood frame structure at a particular site from potential earthquake forces, said method including the steps of:

inspecting said wood frame structure at said site to determine its structural characteristics; and

collecting data related to the structural characteristics of said structure, including frame, supporting wall, foundation, cripple wall and roof characteristics;

generating a structural characteristics database from the structural characteristics data; and

generating an estimate of likely damage to said structure, wherein the estimate is calculated by a computer program based on a combination of the structural characteristics database for said structure and seismic database information for said site;

wherein the computer program includes a probabilistic software engine, and said probabilistic software engine analyzes and combines the structural characteristics database with seismic related databases to generate a rating for said structure.

38. The method of claim 37, wherein the seismic databases include information pertaining to earthquake faults in the vicinity of said site, probable type and size of earthquakes in the vicinity of said site, earthquake recurrences in the vicinity of said site, and geologic conditions of said site.

39. The method of claim 37, wherein the seismic related information for said site is derived from one or more databases such as USQUAKE.

40. The method of claim 37, wherein the structural characteristics data includes data relating to frame characteristics, wall characteristics, foundation characteristics, cripple wall characteristics, roof characteristics and soft story characteristics.

41. The method of claim 37, further including the step of collecting building code data and empirical damage historical data for such structure to be used by the computer program to generate the risk estimate.

42. The method of claim 37, wherein the risk estimate includes information pertaining to the likelihood of said physical disturbance occurring, potential damage likely to be caused by said disturbance, and probable financial harm resulting from such damage.

43. The method of claim 42, wherein the risk estimate further includes an acceptable or unacceptable rating for such structure, and such rating can be used for actuarial purposes for such structure.

44. The method of claim 37, wherein the computer program further generates a report having information on defects in said structure, and recommendations for curing such defects.

45. The method of claim 37, wherein said structure is a residential wood frame structure inspected onsite by a visual examination.

46. A method for estimating risk of damage to a wood frame structure at a particular site from potential wind forces, said method including the steps of:

inspecting said wood frame structure at said site to determine its structural characteristics; and

collecting data related to the structural characteristics of said structure, including window, frame, supporting wall, foundation, cripple wall and roof characteristics;

generating a structural characteristics database from the structural characteristics data; and

generating an estimate of likely damage to said structure, wherein the estimate is calculated by a computer program based on a combination of the structural characteristics database for said structure and wind force database information for said site;

wherein the computer program includes a probabilistic engine, and said probabilistic engine analyzes and combines the structural characteristics data with wind force related databases to generate a rating for said structure.

47. The method of claim 46, wherein the wind force databases include information pertaining to probable type and intensity of wind forces in the vicinity of said site, wind force recurrences in the vicinity of said site, and wind force exposure of said site.

48. The method of claim 46, wherein the wind force related information for said site is derived from one or more databases such as USWIND.

49. The method of claim 46, wherein the structural characteristics data includes data relating to frame characteristics, wall characteristics, foundation characteristics, cripple wall characteristics, roof characteristics and soft story characteristics.

50. The method of claim 46, further including the step of collecting building code data and empirical damage historical data fore such structure to be used by the computer program to generate the risk estimate.

51. The method of claim 46, wherein the risk estimate includes information pertaining to the likelihood of said physical disturbance occurring, potential damage likely to be caused by said disturbance, and probable financial harm resulting from such damage.

52. The method of claim 51, wherein the risk estimate further includes an acceptable or unacceptable rating for such structure, and such rating can be used for actuarial purposes for such structure.

53. The method of claim 46, wherein the computer program further generates a report having information on defects in said structure, and recommendations for curing such defects.

54. The method of claim 46, wherein said structure is a residential wood frame structure inspected onsite by a visual examination.