Houston Pier and Beam Concrete Foundations
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Commercial Division - (713)696-9400
Pier and Beam Foundation Post-Tension slabs & Retrofitting
New Foundations - Existing Foundation Repairs - Raising and leveling QUALITY SERVICE call (713)696-9400
We are Custom Builders with State Certifications for Soil, Civil, Structual & topographical Engineering in Houston TX We specialize in Residential and commercial CONCRETE, FOUNDATIONS, SLABS, Custom built or Repaired to yours or our specifications
Affordable Foundations with in house pier drilling, bellbottom, soil testing and engineering Turn-key foundations, tilt-up's and retro-fitting, laser screed, ride on power trowels, steel forms and fabrication services in Houston and south west Texas
ConcreteFoundationContractors.com © recommends that a minimum of 2-3 borings be performed at each project site. Past experience indicates that subsoils within a close proximity can vary significantly. The design soil parameters should be developed on the basis of weaker soil boring conditions to minimize potential foundation sediment displacement.
The subgrade and fill soils under the floor slabs should be compacted to about minimum 95 percent of uniform compaction, density and thickness. All deleterious material shall be removed prior to concrete placement (ASTM D 698). Furthermore, the fill soils should be non-expansive. Atterberg limit tests should be performed on the fill soils, obtained from the borrow pit, to evaluate the suitability of these soils for use as structural fill and their shrink/swell potential.
Field density tests should be conducted on the subgrade soils and any borrow fill materials in the floor slab and pavement areas by a technician from ConcreteForever.com©. In the areas where expansive soils are present, about 24 to 48-inches of structural fill is placed under the floor slab areas. Laboratory proctor tests will also be performed on the on-site soils as well as off-site borrow fill materials to evaluate the moisture-density-sediment relationship of each of these soils analysis.
Fill soils may have to be placed on the lots to raise the lot or to provide a buffer zone in between the on-site expansive soils and the floor slabs. We recommend that the required thickness of the fill be verified by a technician at ConcreteFoundationContractors.com © after the completion of the building pad. This task can be accomplished by drilling two borings to a depth of five-feet in the building pad area, examining and testing the soils to verify the fill thickness In the event that the structure is supported by drilled footings, we recommend that the installation of the footings be observed by a geotechnical technician from ConcreteFoundationContractors.com ©
The four corner piers of a foundation of a residential dwelling should be drilled first to establish the proper footing depth. The technician from ConcreteForever.com© recommends that a minimum of 2-3 borings be performed at each project site. Past experience indicates that subsoils within a close proximity can vary significantly. The design soil parameters should be developed on the basis of weaker soil boring conditions to minimize potential foundation settlement.
The subgrade and fill soils under the floor slabs should be compacted to about minimum 95 percent of uniform compaction, density and thickness. All deleterious material shall be removed prior to concrete placement (ASTM D 698). Furthermore, the fill soils should be non-expansive. Atterberg limit tests should be performed on the fill soils, obtained from the borrow pit, to evaluate the suitability of these soils for use as structural fill and their shrink/swell potential.
Field density tests should be conducted on the subgrade soils and any borrow fill materials in the floor slab and pavement areas by a technician from ConcreteFoundationContractors.com © . In the areas where expansive soils are present, about 24 to 48-inches of structural fill is placed under the floor slab areas. Laboratory proctor tests will also be performed on the on-site soils as well as off-site borrow fill materials to evaluate the moisture-density-sediment relationship of each of these soils analysis.
Fill soils may have to be placed on the lots to raise the lot or to provide a buffer zone in between the on-site expansive soils and the floor slabs. We recommend that the required thickness of the fill be verified by a technician at concrete forever.com after the completion of the building pad. This task can be accomplished by drilling two borings to a depth of five-feet in the building pad area, examining and testing the soils to verify the fill thickness In the event that the structure is supported by drilled footings, we recommend that the installation of the footings be observed by a geotechnical technician from concreteforever.com.
The four corner piers of a foundation of a residential dwelling should be drilled first to establish the proper footing depth. The technician will conduct hand penetrometer tests on the soil cuttings to estimate the bearing capacity of the soil at each footing location. He will make changes to the foundation depth and dimensions if obstacles, groundwater or soft soils are encountered. Therefore, minimizing costly construction delays. In addition, a technician from ConcreteFoundationContractors.com © will verify the bell size by a bell measurement device. Two sets of concrete cylinders (eight cylinders) will be made for each day of pour. Four cylinders will be broken at seven days, and four cylinders at 28 days
The concrete sampling and testing in the floor slab and placement areas will be conducted in accordance with ASTM standards and the stringuent quality control at concreteforever.com- A technician from ConcreteFoundationContractors.com © will monitor batching and placing of the concrete. Twelve concrete cylinders will be made for each floor slab pour. Six concrete cylinders are tested at seven days and six cylinders at 28 days.
The cost of performing quality control work will vary depending on project location and scope of work. We have estimated the required number of hours and testing requirements for the above-mentioned services. The details of our cost estimate are presented on Plate 1. In order to provide the most accurate estimate of the testing and inspection services, the actual construction schedules are necessary. The standard cost of testing and inspection services for this project ranges from 0.5 to 2.0% of the total new construction. Services will be billed monthly, with payment due on presentation.
The team at ConcreteFoundationContractors.com © shall submit this document to the prospective home owner for approval. This will enable the builder to construct a better quality foundation system for the structure with much less liability exposure.
Proper geotechnical and quality control studies for residential projects in the Houston metro area will result in a quality foundation system for residential structures installed by concreteforever.com - This will also significantly reduce potential liability problems to the owners/designers. In general, the cost of performing these studies are a minimal investment when compared to the total cost of the project and potential foundation repair costs
We also can conduct hand penetrometer tests on the soil cuttings to estimate the bearing capacity of the soil at each footing location. He will make changes to the foundation depth and dimensions if obstacles, groundwater or soft soils are encountered. Therefore, minimizing costly construction delays. In addition, a technician from ConcreteFoundationContractors.com © will verify the bell size by a bell measurement device. Two sets of concrete cylinders (eight cylinders) will be made for each day of pour. Four cylinders will be broken at seven days, and four cylinders at 28 days
The concrete sampling and testing in the floor slab and placement areas will be conducted in accordance with ASTM standards and the stringuent quality control at concreteforever.com- A technician from ConcreteFoundationContractors.com © will monitor batching and placing of the concrete. Twelve concrete cylinders will be made for each floor slab pour. Six concrete cylinders are tested at seven days and six cylinders at 28 days.
The cost of performing quality control work will vary depending on project location and scope of work. We have estimated the required number of hours and testing requirements for the above-mentioned services. The details of our cost estimate are presented on Plate 1. In order to provide the most accurate estimate of the testing and inspection services, the actual construction schedules are necessary. The standard cost of testing and inspection services for this project ranges from 0.5 to 2.0% of the total new construction. Services will be billed monthly, with payment due on presentation.
The team at ConcreteFoundationContractors.com © shall submit this document to the prospective home owner for approval. This will enable the builder to construct a better quality foundation system for the structure with much less liability exposure.
Proper geotechnical and quality control studies for residential projects in the Houston metro area will result in a quality foundation system for residential structures installed by concreteforever.com - This will also significantly reduce potential liability problems to the owners/designers. In general, the cost of performing these studies are a minimal investment when compared to the total cost of the project and potential foundation repair costs
The following guidelines shall apply to one- and two-story structures:
A pier and beam foundation shall not be used in areas denoted as V Zones by the National Flood Insurance Program.
The footings of the foundation shall be constructed of concrete. The piers shall be constructed of either concrete or hollow masonry units filled with grout.
The minimum required dimensions and reinforcement for the footings and for the piers according to IBC. For reinforcement in the footings, the term ’ both ways’ shall mean two-#5’s shall be placed perpendicular to each other. The piers shall be spaced a maximum of 8 feet on center in all directions.
The bottom of each footing pad shall be buried a minimum of 12 inches below natural grade. The maximum height of the piers above natural grade shall be 3 feet. The minimum height of the piers above natural grade shall be 12 inches.
The piers shall be tied to the footings by extending the reinforcement for the piers into the footings as shown in diagrams drawn by concreteforever.com. A standard 90-degree hook shall be provided in the footing of the pier as shown in Figure 301.3A.
Beams shall be framed into the top of the piers. Beams shall be selected from Table 301.3B IBC. Beams shall be minimum No. 2 grade Southern Pine lumber.
The beams shall be pressure treated with a wood preservative.
Beams shall be fastened to piers with either metal column base plates, metal framing connectors or metal anchors that are designed to be embedded into the pier. The metal base plate, framing connector or metal anchor shall have a minimum uplift anchorage capacity of 1,000 pounds. The metal base plate, metal anchor or framing connector shall be installed in accordance with the manufacturer’s recommended installation instructions.
At building corners, beams shall be fastened together with six fasteners. The fasteners shall be smooth shank nails with a minimum 0.120 inch diameter. The fasteners shall be long enough to penetrate a minimum of 1½ inches into the supporting member. See Figure 301.3C.
Splices in beams shall occur over piers.
Notching or boring of beams is not permitted.
If it is not possible to anchor the beams to the piers, the following procedure shall be used. Place either a corrosion-resistant 2x2x¼-inch length of angle iron, or a 4x4 inch treated wood post into a 3 foot deep by 1 foot diameter hole. If the angle iron is used, make a 90 degree bend in the end placed into the hole. If the 4x4 wood post is used, place a dowel in the end placed into the hole. Fill the hole to the top with concrete. The angle iron or wood post shall be fastened to the beam with a minimum of two ½ -inch diameter bolts. This anchor system shall be spaced a maximum of 6 feet on center. See Figure 301.3B for an illustration of this anchor system.
A holddown connector shall be installed in accordance with Section 303.4.5. The holddown anchorage shall be continuous from the pier to the corner wall studs.
The holddown anchorage shall be provided between the beam and the corner wall studs by using holddown connectors or metal framing connectors. The metal framing connectors or holddown connector shall have sufficient capacity to transfer the required holddown anchorage specified in Table 303.4.5A from the corner wall studs to the beam. See Figures 301.3C and 301.2.6.
At building corners, the beam must be anchored to the pier to resist the required holddown anchorage from Table 303.4.5A in addition to the required 1,000 pounds for uplift.
Size, spacing, and maximum span of floor joists shall be in accordance with Section 302.1.
If the bottom of the floor joists are located closer than 18 inches to the exposed ground, then the floor joists shall be pressure treated with a wood preservative.
Floor joists shall be fastened to beams in accordance with Appendix I.
If the floor joists frame directly into the beams, then either a joist hanger or minimum 2x2 inch ledger strip shall be provided. See Figure 301.2.5A. If a ledger strip is used, then the joists shall be fastened to the beam in accordance with Appendix I. The required number of fasteners for the ledger strip shall be located below each floor joist and spaced as specified in our home page Check out our stunning photos
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This page created using the webpage creation facilities of Webspawner.
Copyright © 2008 concreteforever@msn.com. All Rights Reserved