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For design purposes, the long-term deflection of a floor system due to creep and shrinkage can be expressed as a multiplier to its instantaneous deflection. Long-term deflection due to sustained load: l = C * i 8 Where l = long-term deflection; i = instantaneous deflection; and C = multiplier.
Flat Slab Floor System : Definition and Description What is Flat Slab? The flat slab is a two-way reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns.
A one-way slab rests across parallel line of support furnished by walls or beams. The formwork of one-way slab is erected only after pouring of walls and columns. The forms for girder and beams are built along with the forms of slabs as a single piece. Two-way concrete framing systems are more economical.
The main difference between flat slab and conventional slab-beam system is that the one is directly supported on the column while another system has a beam for support. In a flat slab system, the floor/roof consists of walls/slabs and there are no beams.
Flat Slab. A flat slab is a one-way or two-way system with thickenings in the slab at the columns and loadbearing walls called drop panels Figure. Drop panels act as T-beams over the supports. They increase the shear capacity and the stiffness of the floor system under vertical loads, thus increasing the economical span range.
Analysis, design and investigation of beams, one and two-way slab systems, flat plate, flat slab, waffle slab and slab bands. With capacity to integrate up to 20 spans and two cantilevers of a wide variety of floor system types, spSlab is equipped to provide cost-effective, accurate, and fast solutions to engineering challenges. spSlab
a one-way concrete framing system with joists that are spaced more widely than those in a conventional one-way concrete joist system two way solid slab a reinforced concrete framing system in which columns with mushroom capitals support 2 way slab
CHAPTER EIGHT DESIGN OF ONE-WAY SLABS 7 Approximate Structural Analysis ACI Code 8.3.3 permits the use of the following approximate moments and shears for design of continuous beams and one-way slabs, provided:
Ribbed Waffle Slab System. For ribs at 1200-mm centres to suit standard forms the economical reinforced concrete floor span L is approximately D x 15 for a single span and D x 22 for a multi-span, where D is the overall floor depth. The one-way ribs are typically designed as T-beams, often spanning in the long direction.
Designing a One Way Ribbed Concrete Joist Floor System per ACI Code 318-11. It is equal to the factored load contribution from the slab times the center-to-center distance of the ribs, be, plus 1.2 times the self weight of the rib. The eleventh step is to find the maximum factored moment, Mu-rib, acting on the rib.
Verandah slab is a type of one way slab, where the slab is spanning in the shorter direction with main reinforcement and the distribution of reinforcement in the transverse direction.
A flat slab is a two-way reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns. For more detailed definition: Flat Slab Floor System: Definition and Description. Advantages of Flat Slab
Two-Way Flat Plate Concrete Floor System Analysis and Design Slab thickness of 7 in. is adequate for one-way shear. c. Slab shear strength two-way shear Check the adequacy of slab thickness for punching shear two-way shear at an interior column Figure 4 :
One-Way Slab and Beam. The floor loads are transferred to the beams, which are then transferred to the columns thus making it ideal for heavy load areas. It is a common system for parking structures, elevator and stair areas.
Analysis and Design of One-way Slab System Part-I By: Prof Dr. Qaisar Ali Concrete Floor Systems One-way Joist Analysis and Design of One-Way Slab Systems 11 Prof. Dr. Qaisar Ali Reinforced Concrete Design II Department of Civil Engineering, University of Engineering and Technology Peshawar
DEFLECTION OF CONCRETE FLOOR SYSTEMS FOR SERVICEABILITY1 Roof Floor Roof Floor One-way solid slabs 50 45 45 40 Two-way solid slabs supported on columns only 45-48 40-45 describe the geometry of a two-way panel within a floor system, however, are so extensive that
One way slab is a slab which is supported by beams on the two opposite sides to carry the load along one direction. In one way slab the ratio of longer span l to shorter span b is equal or greater than 2.