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// CODE SNIPPET

Section 1709 Preconstruction Load Tests

Building Code 2018 of Illinois > 17 Special Inspections and Tests > 1709 Preconstruction Load Tests
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1709.1 General

Where proposed construction is not capable of being designed by approved engineering analysis, or where proposed construction design method does not comply with the applicable material design standard, the system of construction or the structural unit and the connections shall be subjected to the tests prescribed in Section 1709. The building official shall accept certified reports of such tests conducted by an approved testing agency, provided that such tests meet the requirements of this code and approved procedures.

1709.2 Load Test Procedures Specified

Where specific load test procedures, load factors and acceptance criteria are included in the applicable referenced standards, such test procedures, load factors and acceptance criteria shall apply. In the absence of specific test procedures, load factors or acceptance criteria, the corresponding provisions in Section 1709.3 shall apply.

1709.3 Load Test Procedures Not Specified

Where load test procedures are not specified in the applicable referenced standards, the load-bearing and deformation capacity of structural components and assemblies shall be determined on the basis of a test procedure developed by a registered design professional that simulates applicable loading and deformation conditions. For components and assemblies that are not a part of the seismic force-resisting system, the test shall be as specified in Section 1709.3.1. Load tests shall simulate the applicable loading conditions specified in Chapter 16.

1709.3.1 Test Procedure

The test assembly shall be subjected to an increasing superimposed load equal to not less than two times the superimposed design load. The test load shall be left in place for a period of 24 hours. The tested assembly shall be considered to have successfully met the test requirements if the assembly recovers not less than 75 percent of the maximum deflection within 24 hours after the removal of the test load. The test assembly shall then be reloaded and subjected to an increasing superimposed load until either structural failure occurs or the superimposed load is equal to two and one-half times the load at which the deflection limitations specified in Section 1709.3.2 were reached, or the load is equal to two and one-half times the superimposed design load. In the case of structural components and assemblies for which deflection limitations are not specified in Section 1709.3.2, the test specimen shall be subjected to an increasing superimposed load until structural failure occurs or the load is equal to two and one-half times the desired superimposed design load. The allowable superimposed design load shall be taken as the lesser of:
  1. The load at the deflection limitation given in Section 1709.3.2.
  2. The failure load divided by 2.5.
  3. The maximum load applied divided by 2.5.

1709.3.2 Deflection

The deflection of structural members under the design load shall not exceed the limitations in Section 1604.3.

1709.4 Wall and Partition Assemblies

Load-bearing wall and partition assemblies shall sustain the test load both with and without window framing. The test load shall include all design load components. Wall and partition assemblies shall be tested both with and without door and window framing.

1709.5 Exterior Window and Door Assemblies

The design pressure rating of exterior windows and doors in buildings shall be determined in accordance with Section 1709.5.1 or 1709.5.2. For exterior windows and doors tested in accordance with Sections 1709.5.1 or 1709.5.2, required design wind pressures determined from ASCE 7 shall be permitted to be converted to allowable stress design by multiplying by 0.6.
Exception: Structural wind load design pressures for window units smaller than the size tested in accordance with Section 1709.5.1 or 1709.5.2 shall be permitted to be higher than the design value of the tested unit provided such higher pressures are determined by accepted engineering analysis. Components of the small unit shall be the same as the tested unit. Where such calculated design pressures are used, they shall be validated by an additional test of the window unit having the highest allowable design pressure.

1709.5.1 Exterior Windows and Doors

Exterior windows and sliding doors shall be tested and labeled as conforming to AAMA/WDMA/CSA101/I.S.2/A440. The label shall state the name of the manufacturer, the approved labeling agency and the product designation as specified in AAMA/WDMA/CSA101/I.S.2/A440. Exterior side-hinged doors shall be tested and labeled as conforming to AAMA/WDMA/CSA101/I.S.2/A440 or comply with Section 1709.5.2. Products tested and labeled as conforming to AAMA/WDMA/CSA 101/I.S.2/A440 shall not be subject to the requirements of Sections 2403.2 and 2403.3.

1709.5.2 Exterior Windows and Door Assemblies Not Provided for in Section 1709.5.1

Exterior window and door assemblies shall be tested in accordance with ASTM E330. Structural performance of garage doors and rolling doors shall be determined in accordance with either ASTM E330 or ANSI/DASMA 108, and shall meet the acceptance criteria of ANSI/DASMA 108. Exterior window and door assemblies containing glass shall comply with Section 2403. The design pressure for testing shall be calculated in accordance with Chapter 16. Each assembly shall be tested for 10 seconds at a load equal to 1.5 times the design pressure.

1709.6 Skylights and Sloped Glazing

Skylights and sloped glazing shall comply with the requirements of Chapter 24.

1709.7 Test Specimens

Test specimens and construction shall be representative of the materials, workmanship and details normally used in practice. The properties of the materials used to construct the test assembly shall be determined on the basis of tests on samples taken from the load assembly or on representative samples of the materials used to construct the load test assembly. Required tests shall be conducted or witnessed by an approved agency.

Related Code Sections


1604.7 Structural Design, Preconstruction Load Tests
be load tested in accordance with Section 1709 ...
Building Code 2021 of Illinois > 16 Structural Design > 1604 General Design Requirements > 1604.7 Preconstruction Load Tests
1604.7 Structural Design, Preconstruction Load Tests
with the applicable referenced standards, or alternative test procedures in accordance with Section 1707, shall be load tested in accordance with Section 1709 ...
Building Code 2018 of Illinois > 16 Structural Design > 1604 General Design Requirements > 1604.7 Preconstruction Load Tests
Section 1709 Special Inspections and Tests, Preconstruction Load Tests
Where specific load test procedures, load factors and acceptance criteria are included in the applicable referenced ...
Building Code 2018 of Illinois > 17 Special Inspections and Tests > 1709 Preconstruction Load Tests
Section 1709 Special Inspections and Tests, Preconstruction Load Tests
Where specific load test procedures, load factors and acceptance criteria are included in the applicable ...
Building Code 2021 of Illinois > 17 Special Inspections and Tests > 1709 Preconstruction Load Tests
1709.2 Special Inspections and Tests, Load Test Procedures Specified
Where specific load test procedures, load factors and acceptance criteria are included in the applicable referenced standards, such test procedures ...
Building Code 2018 of Illinois > 17 Special Inspections and Tests > 1709 Preconstruction Load Tests > 1709.2 Load Test Procedures Specified
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