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floor and roof constructions), the necessary initial readings shall be made for the measurements of
deflections (and strains, if these are considered necessary) caused by the application of the test load.
The members selected for loading shall be subjected to a superimposed test load equivalent to 0.3
times the dead load plus 1.7 times the live load (tes load =+ 0.3D + 1.71). The test load shall be applied
without shock to the structure and in a manner to avoid arching of the loading materials.
The test load shall be left in position for 24 hours whereupon readings of the deflections shall be
taken. The test load shall be removed and additional readings of deflections shall be taken 24 hours after
the removal of the test load.
(c) Criteria for Evaluation of Load Tests. If the structure shows evident failure or fails to meet the
following criteria, the changes needed to make the structure adequate for the rated capacity shall be
made or a lower rating may be established as follows:
1. If the maximum deflection, /\ , is less than L2 / 20,000t, the requirements on recovery of
deflection is sub-paragraph may be waived. 2. If the maximum deflection, /\ , of a reinforced concrete beam, floor or roof exceed L2 /
20,000t, the recovery of deflection within 24 hours after the removal of the test load shall
be at least 75 per cent of the maximum deflection. 3. In determining the limiting deflection for a cantilever, L2 shall be taken as twice the
distance from the support to the end, and the deflection shall be adjusted for movement of
the support. 4. Construction failing to show 75 per cent recovery of the deflection may be retested. The
second test loading shall not be made until at least 72 hours after removal of the test load
for the first test. The structure shall show no evidence of failure in the retest, and the
recovery of deflection caused by the second test load shall be at least 75 per cent. CHAPTER 6
Section 6.01: Materials (a) General. The qulity and design of materials assembled in masonry work shall conform with
internationally accepted engineering standards and specifications, subject to the provisions of this Code.
The materials included in masonry work shall be classified as: structural clay products, pre-cast
products, adobe stone, clay brick, natural stones of irregular units, reclaimed masonry units, pre-cast
lintels, mortar, grout, and reinforcement.
(b) Other Materials.
Any masonry material other than those specified in this Chapter, which is
incombastible and sufficiently close to the characteristics of any of the materials classified under this
Chapter may be aduded by the Building Official in the classification of the material to which it most
closely resembles: provided, however, that such material shall have passed actual tests in accordance
with applicable standards, not only as separate units but also as combined.
Section 6.07: Standard Minimum Requirements
(1) If the load on the pilaster can be carried...
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- Fall '12
- Building code, Building officials