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Gateway Park Center PERKINS+WILL <br /> 810495.00 <br />12/06/18 <br />031000-4 Concrete Formwork <br />1.Forms shall be designed for fabrication and erection in accordance with <br />Design Professionals’ requirements and recommendations of ACI 301, <br />318 and 347. <br />2.Design formwork in a manner such that the total construction load does <br />not at any time exceed the total design load of new or existing <br />construction and accounts for concrete age and relative strength at time <br />of loading. See Section 3.2 for shoring/reshoring requirements. <br />3.Design formwork for loads and lateral pressures outlined in Section 2.2, <br />ACI 347, and wind and seismic loads as specified by SEI/ASCE 37-02 <br />unless otherwise controlled by local building code. <br />4.Design formwork to include loads imposed during construction, including <br />weight of construction equipment, concrete mix, height of concrete drop, <br />rate of filling of formwork, vibrator frequency, ambient temperature, <br />foundation pressures, lateral stability, temporary imbalance or <br />discontinuity of building components, and other factors pertinent to safety <br />of structure during construction. <br />5.The use of flowing concrete (8” (200mm) to 10” (250mm) slump) of Self- <br />Consolidating Concrete requires a review of the formwork design based <br />on the rate of placement and setting time of the mix. Unless shown to be <br />sufficient otherwise, formwork design shall conform to the requirements of <br />ACI 237. <br />1.8 DELIVERY, STORAGE, AND HANDLING <br />A.Comply with General Conditions and Division 1, including the following: <br />1.Store forms and form materials clear of ground and protect from damage. <br />1.9 QUALITY ASSURANCE BY OWNER’S TESTING AGENCY <br />A.Field Quality Assurance General: The Owner’s Testing Agency shall test and <br />inspect concrete formwork as Work progresses. Failure to detect any defective <br />work or material shall not in any way prevent later rejection when such a defect is <br />discovered nor shall it obligate Design Professionals for final acceptance. <br />B.Testing Agency shall provide qualified personnel at site to inspect formwork <br />using the latest Contract Documents and approved shop drawings as follows: <br />1.Prior to placement of reinforcement, inspect formwork for grade, quality of <br />material, absence of foreign matter, and other imperfections that might <br />affect suitability of concrete placement and tolerances stated herein. <br />2.Inspect forms for location, configuration, compliance with specified <br />tolerances, block outs, camber, shoring ties, seal of form joints and <br />compliance with Contract Documents. <br />3.Verify condition of bond surfaces, locations and sizes of all accessories, <br />embedment items, and anchorage for prevention of displacement. <br />4.Verify proper use/application of form release agents. <br />5.Inspect concrete surfaces immediately after removal of formwork and <br />prior to any patching or repair work.