18 inch wide hollow core flooring

Hollow Core Plank - Larry E. Knight, Inc.hollowcore plank concrete floor slabs are resistant to air-borne noise and transmission of impact noise and provide qualities superior to those of a solid concrete slab of equivalent thickness. Acoustical tests show ratings of STC ... Weight = 44 PSF. Cover to center of strands = 1 3/8". Strands, Span-->. 10. 12. 14. 16. 18. 20. 22. 24. 4-3/8", Load. 250+. 240. 165. 115. 85. 62. 46. 33. Chamber. 0.05. 0.07. 0.08. 0.08. 0.07. 0.04. -0.01. -0.10. 5-3/8", Load. 250+. 250+. 210. 155. 115. 85. 65. 50.

FEMA P-751: Chapter 8: Precast Concrete DesignAn ordinary precast structural wall is defined as one that satisfies ACI 318 Chapters 1-18. An intermediate precast .... floors and roofs of these buildings are to be untopped 8-inch-thick hollow core precast, prestressed concrete plank. .... Chapter 8: Precast Concrete Design. 8-7. Compute diaphragm weight (wpx) for the roof and floor as follows: Roof: Total weight. = 870 kips. Walls parallel to force = (48 psf)(277 ft)(8.67 ft / 2). = -58 kips wpx. = 812 kips. Floors: Total weight. = 978 kips.

Patent US8671634 - Shallow flat soffit precast concrete floor system ...18 Mar 2014 ... Testing results have indicated that a 12 inch deep flat soffit precast floor system has adequate capacity to carry gravity loads (including 100 psf live load) in a 30 ft×30 ft bay size. Testing has also shown that ... Testing has also shown that shear capacity of the ledge-less hollow-core-beam connections can be accurately predicted using the shear friction theory. Images(25). Patent Ding. Previous page. Next page. Claims(18). We claim: 1. A concrete floor system, ...

Hollow-core - EnCon Uniteda wide variety of settings and offer a myriad of benefits. hollow-core systems are cost effective, allow construction to remain on budget and on schedule, require less maintenance, and create less environmental impact than conventional building materials. A hollow-core structure is fire resistant, moisture resistant, allows less sound transmission, offers flexible floor plans, and meets unique building needs and challenges. hollow- core precast concrete helps manage heating and ...

18 in. x 80 in. Flush Hardwood Unfinished Hollow Core Interior Door ...Complement a range of modern or traditional styles with this Steves & Sons Flush Hardwood Unfinished hollow core Interior Door Slab. ... Sturdy 1-3/8 in. thick hollow-core hardwood construction with all-wood edges for reliability; Flush,

12626196_CNRE Assessment of Hollow-core Floors for Seismic ...Figure 6-18 Location of wide cracks in a hollow-core floor. 90. Figure 7-1. Restraint forces acting on a hollow-core unit due to rotation. 94. Figure 7-2. Anchorage of mesh in topping concrete. 96. Figure 7-3. Design of support ledge for hollow-core units. 99. Figure 7-4. Lateral expansion of soffit of hollow-core floor under fire conditions. 100. Figure 7-5. Longitudinal expansion of hollow-core unit under fire conditions. 101. Figure A-1. Interaction of floor and beam where precast floor units ...

8' wide hollowcore spancrete plank load tables guide ... - KIE-CONA LLOWABLE S UPERIMPOSED L OAD IN. P OUNDS PER S QUARE F OOT. 15. 15. 16. 157 213 264 286 307 244. 16. 222. 303. 362. 362. 362. 348. 17. 141 193 236 257 275 247. 17. 200. 275. 335. 335. 335. 335. 18. 122 168 212 231 247. 228. 18. 173. 240. 305. 312. 312. 312. 19. 105 147 186 209 224. 237. 19. 149. 210. 266. 291. 291. 291. 20. 92. 129 164 189 204. 216. 20. 129. 184. 230. 271. 272. 272. 21. 80. 114 145 168 186. 197. 21. 112. 157. 198. 236. 255. 255. 22. 69.

Seismic Performance of Hollow Core Floor Systems Preliminary Draft2 Apr 2009 ... They were fixed to the beam ledge with an adhesive grout. The hollow-core units were pre-split at the ends of the webs. One of the key differences between the hollow-core floors that had survived the Northridge earthquake, and the Matthews Test, was the North American practice of seating precast hollow- core slabs on Korolath bearing strips (a two-inch wide plastic strip, with one side smooth and the other side rough) and ensuring all floor units had a full 50 mm of ...

Hollowcore, hollowcore flooring, prestressed concrete - ACP Concretehollowcore flooring. ACP Prestressed concrete hollowcore floor and roof slabs comprise of both hollow and solid concrete flooring units, nominally 1200mm wide and of various depths range from 95mm to 500mm placed side by side with a grouted joint. Precast concrete floors provide our customers with a quick form of flooring construction, enabling the principal contractor to progress in most cases to the next level of construction within a day of the precast concrete hollowcore ...

Patent US20130074430 - Shallow Flat Soffit Precast Concrete Floor ...28 Mar 2013 ... Testing results have indicated that a 12 inch deep flat soffit precast floor system has adequate capacity to carry gravity loads (including 100 psf live load) in a 30 ft×30 ft bay size. Testing has also ... Testing has also shown that shear capacity of the ledge-less hollow-core-beam connections can be accurately predicted using the shear friction theory. Images(25). Patent Ding. Previous page. Next page. Claims(18). 1. A concrete floor system, comprising: (a) a column ...

ELEMATIC Hollow-core Plank - Oldcastle Precastlarger than 4'-0 wide will require additional structural support for the precast planks. Topping. Specify whether or not concrete topping is to be composite. Com- posite action requires the topping to be bonded to the top surface of the plank. .... which air-borne sound is transmitted through a floor system. The density and mass of precast concrete planks is ideal for achieving larger STC values, which indicate greater sound insulation. UL. Number. Rating (Hour). Plank. Thickness. (inch).

Elematic Hollow-core Plank Technical Data Guide - Oldcastle Precasthighly dependent on the floor surface and structural connection details. As with the STC, the higher IIC values are more desirable. UL. Number. Rating (Hour). Plank. Thickness. (inch). Topping. Thickness. (inch). Restrained. Unrestrained ... Types of Floor Systems. Rating. 8" hollowcore Plank. 28. 8" hollowcore Plank + ½" wood block flooring adhered directly. 47. 8" hollowcore Plank + 0.058" vinyl tile. 50. 8" hollowcore Plank + quarry tile w/reinforced mortar bed with 0.4" nylon and ...

Hollow-core - EnCon UnitedProvidi. COLORADO. GEORGIA. OREGON. UTAH. WASHINGTON. Providing Engineered Concrete Solutions. hollow-core. Building System Design Manual. Providing Engineered Concrete Solutions ... allows less sound transmission, offers flexible floor plans, and meets unique building needs and challenges. hollow- core precast concrete helps manage heating and cooling demands, resulting in reduced energy costs. The safety, security, and ..... hollow-core to Steel wide Flange .

Hollow Core Slabs - Nordimpiantihollow core slabs have a wide range of applications. They can be produced up to 25 m long. They are very common in the residential, healthcare, education, industrial and commercial markets and also in seismic zones. It is possible to manufacture elements with end openings that are then filled on-site in an orthogonal direction to the floor creating solid ends to increase shear resistance. 5)HIGH LOAD CAPACITY AND RIGIDITY. hollow core slabs have minimal deformation even with ...