Friday, December 16, 2011
Monday, December 12, 2011
codes
Noblesville City Ordinances
76ftx124ft
International Building Code 2009
76ftx124ft
International Building Code 2009
Equipment
· Keystone Library Site Location Map
· Keystone Library Site Plan
· City of Noblesville, Indiana Code of Ordinances (found at http://www.amlegal.com/library/)
o Section 154.04 Adoption of Rules by Reference
o Section 159.105 Zoning Districts General Requirements
o Section 159.107 Commercial Districts
o Section 159.120 General Regulations
o Appendix C
· International Building Code 2009
o Section 302
o Section 303
o Section 503
o Section 602
o Section 1004
o Section 1005
o Section 1021
· Noblesville Zoning Map
Procedure
In this activity you will research the local code of ordinances and building codes to obtain important information needed to redesign the Keystone building.
The Keystone Building is within the city of Noblesville, Indiana. The Noblesville Code of Ordinances applies to this project location.
1. Identify the Building Code that applies in Noblesville by reviewing Section 154.04 Adoption of Rules by Reference in the Noblesville Code of Ordinances.
Articles of Title 675 of the Indiana Administrative Code
2. Visit the Indiana Association of Building Officials website at http://www.iabo.com/ and follow the link to Current Codes. On which model code is the current Indiana Building Code based?
2006 International Building Code (1st printing)
3. Using the International Building Code, find the Use and Occupancy classification of the proposed new Keystone Building. A-3 Assembly uses intended for worship, recreation or amusement and other assembly uses not classified elsewhere in Group A.
4. Using the International Building Code, describe each of the four types of construction. Based on the existing structure, under which of these types of construction could the Keystone Building fall? See section 503.1.
I and II Walls, floors, roofs, and exits must be constructed of noncombustible materials such as concrete, stseel, and masonry.
III Exterior walls are made of noncombustile materials, interior elements can be made of fire retardant-treated wood.
IV Exterior walls are made of noncumbustile amterials, interior elements are of solid or laminated wood
V Walls, floors, roofs, and exits can be constructed of any material allowed by the code.
I and II Walls, floors, roofs, and exits must be constructed of noncombustible materials such as concrete, stseel, and masonry.
III Exterior walls are made of noncombustile materials, interior elements can be made of fire retardant-treated wood.
IV Exterior walls are made of noncumbustile amterials, interior elements are of solid or laminated wood
V Walls, floors, roofs, and exits can be constructed of any material allowed by the code.
5. Compare the allowable Building Heights and Areas (IBC 2009 Table 503) for the Keystone Library using different construction types. What is the least restrictive construction type that can be used for the Keystone Library? Is a fire-protective layer required over the structural elements? Note: The letter A indicates that the structural members are protected by a fire-rated coating or cover (sheetrock, spray on, or another approved method). The letter B indicates that the structural members are not protected by an additional fire-rated coating or cover.
Using type I-A construction materials allow for an unlimited number of stories, and a unlimited area per story, for the A-3 classification. Type I-B also allows for eleven stories, with unlimited area per story. Section 503
Using type I-A construction materials allow for an unlimited number of stories, and a unlimited area per story, for the A-3 classification. Type I-B also allows for eleven stories, with unlimited area per story. Section 503
6. What materials do you propose to use for the new interior walls and floor for the Keystone Building? Justify your answer.
A simple and economically sound material to use to use for the construction for the interior walls of the Keystone Building is the use of fire-retardant wood.
2303.2 Fire-retardant-treated wood. Fire-retardant-treated wood is any wood product which, when impregnated with chemicals by a pressure process or other means during manufacture, shall have, when tested in accordance with ASTM E 84 or UL 723, a listed flame spread index of 25 or less and show no evidence of significant progressive combustion when the test is continued for an additional 20-minute period. Additionally, the flame front shall not progress more than 101/2 feet (3200 mm) beyond the centerline of the burners at any time during the test.
A simple and economically sound material to use to use for the construction for the interior walls of the Keystone Building is the use of fire-retardant wood.
2303.2 Fire-retardant-treated wood. Fire-retardant-treated wood is any wood product which, when impregnated with chemicals by a pressure process or other means during manufacture, shall have, when tested in accordance with ASTM E 84 or UL 723, a listed flame spread index of 25 or less and show no evidence of significant progressive combustion when the test is continued for an additional 20-minute period. Additionally, the flame front shall not progress more than 101/2 feet (3200 mm) beyond the centerline of the burners at any time during the test.
7. Use the IBC to determine the Occupant Load (IBC 2009 Section 1004) for the Keystone Building assuming a second floor is added. For now, conservatively assume that the second floor is entirely stacks and that the first floor is entirely reading rooms. In addition, because there is currently no plan to include an outside stairway to the roof, assume that the occupants of the green roof must exit through the 2nd floor. The building inspector has determined, based on the planned use of the green roof as additional reading area, that the occupant load for the green roof may be based on the requirements for reading rooms.
Accessory storage areas, mechanical equipment room |
Reading rooms
| |
Stack area
|
In square feet per occupant.
Story area = 76ft X 124ft = 9,424 sq. ft.
Reading Rooms Occupancy Load 9,424 sq .ft. - (area of bathrooms + area of mechanical room)
9,424 sq. ft. - (50 sq. ft. + 50sq. ft. + 100 sq. ft.) = 9,224 sq. ft. / 50 = 184 people + 2 from restrooms and 1 from mechanical room = 187 people
Stack Area Occupancy Load = Occupant Load of Stack Area + Occupant Load of Greenhouse
5,000 sq. ft./100 + 3,000sq. ft./50 = 110 people
Total people = 1st floor + 2nd Floor = 187 people + 110 people = 297 people
8. The occupant load is used to determine the minimum egress width for the building. Use the IBC to determine the required total egress width (IBC 2009 Section 1005) for the Keystone Building including the second floor. The total width of means of egress in inches (mm) shall not be less than the total occupant load served by the means of egress multiplied by 0.3 inch (7.62 mm) per occupant for stairways and by 0.2 inch (5.08 mm) per occupant for other egress components.
Since occupants must exit through the floor that they are currently on, a minimum means of egress calculation for a stairway is not required. So other egress components mean exits by the use of doors. 297 people *.2 = 59.4 inches
Story area = 76ft X 124ft = 9,424 sq. ft.
Reading Rooms Occupancy Load 9,424 sq .ft. - (area of bathrooms + area of mechanical room)
9,424 sq. ft. - (50 sq. ft. + 50sq. ft. + 100 sq. ft.) = 9,224 sq. ft. / 50 = 184 people + 2 from restrooms and 1 from mechanical room = 187 people
Stack Area Occupancy Load = Occupant Load of Stack Area + Occupant Load of Greenhouse
5,000 sq. ft./100 + 3,000sq. ft./50 = 110 people
Total people = 1st floor + 2nd Floor = 187 people + 110 people = 297 people
8. The occupant load is used to determine the minimum egress width for the building. Use the IBC to determine the required total egress width (IBC 2009 Section 1005) for the Keystone Building including the second floor. The total width of means of egress in inches (mm) shall not be less than the total occupant load served by the means of egress multiplied by 0.3 inch (7.62 mm) per occupant for stairways and by 0.2 inch (5.08 mm) per occupant for other egress components.
Since occupants must exit through the floor that they are currently on, a minimum means of egress calculation for a stairway is not required. So other egress components mean exits by the use of doors. 297 people *.2 = 59.4 inches
9. What is the minimum number of exits required for the Occupant Load (IBC 2009 Section 1021)? To determine this, one would need to know the area that is allotted to both the stack area and reading rooms.
2 Exits per floor
2 Exits per floor
10. Read IBC 2009 Section 1021.2. Is it permissible to have only a single exit from the ground floor? From the second floor? Justify your answers.
The building must have at least one exit, because the occupant load is more than 49 people for the first floor, which is the specification for group A buildings to be exempt from the two exits per floor code for the ground floor.
The answers to the following questions should be researched in the Noblesville Code of Ordinances and the Noblesville Zoning Map.
11. In which zoning designation does the Keystone building property lie? (Refer to the Keystone Library Site Location Map to help locate the site on the zoning map.)
The Keystone Building Site is situated in the zone entitled Corporate Campus Planned District.
The Keystone Building Site is situated in the zone entitled Corporate Campus Planned District.
12. Describe the purpose of this zoning designation. Document your answer with a section number from the code.
(H) Corporate Campus Planned Development District (CCPD)
(1) Purpose and Procedures. The purpose of the Corporate Campus Planned Development District(CCPD) is to encourage economic development activity and high quality, well-integrated development both north and south of the 146th Street corridor, east of State Road 37 to Prairie Baptist Road and Atlantic Road, and north of the I-69 interchange. This district is intended to provide for a broad range of uses, thus expanding employment opportunities in Noblesville and enhancing its tax base. Within this district are a number of subdistricts that represent various physical character areas. Although the CCPD District shall be developed in a unified and coordinated fashion, each of the subdistricts has tailored a purpose, use, bulk and site development standards reflective of its location, function, and desired appearance within the corporate campus park. It is the intent of this district to augment the other bulk provisions of this chapter. When not specifically addressed by this district, the bulk standard provisions of this chapter shall apply.
13. What is the minimum lot size within this designation? Does the Keystone Property meet this requirement? Document your answer with a section number of the code.
Summary of Commercial Bulk Requirements (table)
20,000 sq. ft.
Summary of Commercial Bulk Requirements (table)
20,000 sq. ft.
14. What is the maximum building height according to the Noblesville ordinance?
Summary of Commercial Bulk Requirements (table)
3 stories or 35 ft.
Summary of Commercial Bulk Requirements (table)
3 stories or 35 ft.
15. Read Section 159.120 of the Noblesville Code of Ordinances. Record any information that is important to the redevelopment of the Keystone building.
(1) SR District. No structure or part thereof shall project into a required rear or side yard except: (a) Un-enclosed, uncovered steps, entrance platforms, terraces, or landings not over 18 inches above grade level;
(b) The ordinary projection of belt courses, sills, lintels, chimneys, and other similar ornamental and architectural features not exceeding 18 inches;
(c) An eave, cornice overhang, awning, balcony, or bay window not exceeding 20% of the required setback.
(D) Minimum Yard Setback. No structure shall be erected, placed, or moved to within any setback area except certain accessory structures as provided in § 159.121(B)(1).
(B) Property Access. Every building hereafter erected or moved shall be located on a lot with frontage and access on a street, and provide for safe and convenient access, fire protection, and required off-street parking, except as otherwise provided in § 159.107(C).
(1) No building, structure, or land shall be used or occupied and no building or structure or part thereof shall be erected, constructed, reconstructed, moved, or structurally altered except in conformity with all of the regulations herein specified for the district in which it is located.
16. Is the Use proposed in Keystone Building Project permitted on this property? Document your answer.
Yes, because it is creating jobs, and if more people come to live in Noblesville county because of the library, then the tax base will increase as well.
Yes, because it is creating jobs, and if more people come to live in Noblesville county because of the library, then the tax base will increase as well.
17. When developing a property, when is landscaping and screening required? Everywhere. Landscaping and screening are most important where the structure itself is being built, because you want a leveled and debri-less plot of land to set your building on. It's also important to landscape and screen the rest of your property too. Without proper gradients, flooding, either into your building or onto someone else's property, can become a serious issue. Without proper landscaping, top-soil may be lost due to the effects of erosion. Also, landscaping increases resale value at a disproportional amount.
159.180 PURPOSE.
159.180 PURPOSE.
These landscaping requirements are intended to foster aesthetically pleasing developments, which will preserve and enhance the appearance, character, health, safety, and welfare of the community. These regulations are intended to increase the compatibility of adjacent uses, and in doing so minimize the harmful impact of noise, dust and other debris, motor vehicle headlight glare or other artificial lights intrusions, and other objectionable activities or impacts conducted or created by adjoining or nearby uses. These regulations are also intended to promote the prudent use of water and energy resources.
(Ord. 64-11-08, passed 12-9-08)
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