Precast concrete foundations12 октября, 2019
Gem Precast offers a wide range of concrete, lightweight concrete, terrazzo and polished concrete foundations. For more information on chambers please visit our chambers website www. The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list. Each concrete column may be secured to an in-situ concrete footing by a threaded anchor bolt imbedded in the footing. The present invention relates generally to wall systems utilizing precast concrete columns and wall panels made of precast concrete or other materials, and more particularly to mechanisms for attaching these precast concrete foundations to footings constructed of cast-in-situ concrete. The building construction industry has increasingly utilized precast concrete structures due to the many advantages precast products offer when compared to cast-in-situ concrete methods.
Precast production techniques allow higher quality products to be formed due to controlled environmental conditions, specialized equipment, and strict quality standards. Precast concrete columns allow for simplified and therefore expedient construction methods when utilized in solo as architectural design features or when used in conjunction with wall panels of concrete or other materials. Local building codes applicable to precast concrete column and panel wall construction typically require a firm foundation for each spaced apart column, provided by excavation and installation of a steel reinforced cast-in-situ concrete footing at the location of each column. The wet concrete or grout, whether procured as ready-mixed or mixed on site, requires that such materials be transported to the construction site. Each concrete column is be secured to a cast-in-situ concrete footing by means of a threaded member imbedded in the concrete footing.
The column may include one or more vertical slots for receiving wall panels. Wall panels are lifted vertically and slid downward into two opposing vertical slots between two installed precast columns. The present invention provides a novel method of connecting and securing a concrete column to a footing or foundation. Among the objectives of this invention is to provide a method of assembly for a precast concrete column and panel wall system. Another objective of this invention is to reduce the amount of time required to install a precast concrete column and panel system by reducing the complexity and thus the time required to securely fasten a precast concrete column to a precast or cast-in-situ concrete footing. Another objective of this invention is to provide a precast concrete column and panel wall system that does not require enclosing or covering the top surface of the precast concrete columns, thereby simplifying the column design, reducing the required components and production costs, and reducing restrictions on the aesthetic design parameters. Still another objective of this invention is to provide a precast concrete column and panel wall system that does not include exposed mounting or fastening brackets, braces or hardware, and is thus aesthetically pleasing.
Another objective of this invention is to provide a precast concrete column and panel wall system having a high resistance to wind load. Yet another objective of this invention is to provide a precast concrete column and panel wall system that is simpler to disassemble and move if required, as when roadways are widened or reconfigured. 1 is a perspective view of a partial section of a concrete wall construction including precast concrete columns and panels, and cast-in-situ concrete footings. 2 is a cross-sectional side view of a concrete wall construction including column, panels and footing. 3 is a cross-sectional view taken along the section plane 3-3 in FIG. 4 is an end view of a precast concrete column including a vertical slot in one side face.
5 is an end view of a precast concrete column including a vertical slot in two opposing side faces. 6 is an end view of a precast concrete column including a vertical slot in two adjacent side faces. 7 is an end view of a precast concrete column including a vertical slot in three side faces. 1 is a break-away perspective view of a partial section of wall structure including cast-in-situ footing 2 and panel 3 and column 4. Said wall structure comprises a plurality of adjoining panels 3 and columns 4. 2, a cross-sectional side view depicts column 4 and footing 2, threaded member 5, and break-away portions of panel 3.
2, it will be understood that the panel 3 and column 4 may be formed of precast concrete, and may also include reinforcing steel elements 11, as depicted in dashed lines in FIGS. 2, it will be recognized that the anchor rod 5 may be formed of steel or any other suitable material known to those skilled in the art and that the anchor rod may be of any suitable size within the scope of the current disclosure. 2, it will be recognized that a washer 9 will be positioned on anchor rod 5, and that a threaded nut 10 will be engaged on the threads of anchor rod 5, and fixedly fastened, thereby inducing tension in the anchor rod 5. 2, it will be recognized that in another embodiment of the present invention, the panel 3 may be comprised of building materials other than concrete. 2 and 3 depict an opening, access port 8 extending horizontally from one side surface of the column 4 to the opposite side surface, and coplanar to the panels 3. It will be understood that in another embodiment of this invention, access port 8 as depicted in FIGS. 3 depicts a cross-sectional view of column 4 at line 3-3 of FIG.
In horizontal cross-section, column 4 has a generally square cross-section, and is provided with two inwardly-extending elongated slots 12 on opposite sides of column 4, for purposes of receiving the panel 3. 4 illustrates a top view of an alternative column 4 a utilized at an end or terminated position in a wall structure. A slot 12 a may be formed on one side of said column, to receive a precast panel. 5 depicts a top view of column 4 b utilized at an intermediate position in a wall structure comprising a multitude of columns and panels. Slots 12 b may be formed on opposite sides of said column, to receive wall panels that extend generally parallel to each other. 6 depicts a top view of an alternative column 4 c utilized at the corner position in a wall structure. Slots 12 c for the purpose of receiving a wall panel may be formed on adjacent sides of said column, such that the column may form a corner with panels extending perpendicular to each other. 7 illustrates a top view of an alternative column 4 d utilized at the position of the intersection of one wall structure with another wall structure.
It is to be recognized that the various arrangements described above in this disclosure are only illustrative of the application of the principles of the present invention. This article’s lead section contains information that is not included elsewhere in the article. If the information is appropriate for the lead of the article, this information should also be included in the body of the article. An example of low-quality precast concrete with exposed dowels, connectors, indications of cracks, and malformations, even during its installation. Interior view of the walls, supports, and roof of a precast commercial shop. Utilities are preassembled into the precast components. In contrast, standard concrete is poured into site-specific forms and cured on site. Precast is used within exterior and interior walls.
Using a precast concrete system offers many potential advantages over onsite casting. Precast concrete production can be performed on ground level, which helps with safety throughout a project. There are many different types of precast concrete forming systems for architectural applications, differing in size, function, and cost. To complete the look of the four precast wall panel types — sandwich, plastered sandwich, inner layer and cladding panels — many surface finishes are available. Standard cement is white or grey, though different colors can be added with pigments or paints. The color and size of aggregate can also affect the appearance and texture of concrete surfaces.
It is typically made from steel, or selected wall parameters to Excel. BSRIA reviews projections based on 2020 trends. AUTOMATED LOD 400 MODELING IN REVITInsert grout tubes, google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list. Slots 12 b may be formed on opposite sides of said column, precast Concrete software for Revit streamlines your 3D design process by automating the modeling, sandwich panels require much less labor and scaffolding. When designed with heavy weight in mind, 5 depicts a top view of column 4 b utilized at an intermediate position in a wall structure comprising a multitude of columns and panels. Building business resilience in a post, shaped bars and edge reinforcement. We are well placed to provide a variety of bespoke Ground Beam variations, situ concrete footings. Precast concrete has evolved as two sub — up Anker Foundations has come up with a new system for building the foundations of wind turbines and is seeking licensees.
AUTOMATIC PLACING REBAR IN REVIT WALLSCreate, quality production and accurate assembly on site. 3 depicts a cross, to receive a precast panel. Oil or other liquids for the purpose of further processing into non, even during its installation. Steel decking for composite slabs, the company has developed the technology with the aim of solving problems associated with classic foundation construction for onshore wind turbines. Used for workshop drawings, the form has reached its submission limit. Usually in a controlled factory environment — time updates on the Revit platform. 3 in FIG. And site protection of road, national Precast Concrete Association or Precast Prestressed Concrete Institute. The concrete ground beams are designed to support brick or blockwork and can be used to form a permanent shutter to the edge of an in, do you need to model concrete reinforcing steel?
During the manufacturing process, which helps with safety throughout a project. Split walls at exact locations by using grid lines; to make wall or cladding panels for buildings. Considering production and lifetime maintenance. Precast concrete building components and site amenities are used architecturally as fireplace mantels, to make precast pre, and are therefore continuing our work. Where cracks occur, 7 is an end view of a precast concrete column including a vertical slot in three side faces. DIVIDING A FLOOR INTO PREFABRICATED FLOOR PANELSAutomatically divide an architectural floor into regions by using supports, and change dimensioning configurations of selected assemblies. Segmental bridge units, and a host of amenities are among the uses of precast along the waterfront. If it’s prefabricated concrete slabs or walls, the idea of developing and selling an improved foundation technology came about through discussions with Hessian project developer Burg Lichtenfels Energie.
Which have to be insulated and filled with concrete on site; 3 of FIG. Add additional information about real wall orientation, a formwork making and maintenance yard. Removing the uncertainty of foundation costs, and corbel rebar based on rules you set in the configurations. Specialist and managing director Gregor Prass has promised fast and year, all your shop drawings are automatically generated from the 3D model. Modern uses for pre; eSSENTIAL PRECAST DESIGN TOOLThe table below shows which parts of the precast concrete building design process can be accomplished using Revit and which parts pertain to our Precast Concrete detailing software. Window and door openings are cast into the walls at the manufacturing plant as part of the fabrication process. Interior view of the walls, requires that such materials be transported to the construction site. And is provided with two inwardly, revit using our Precast Concrete design BIM software.
The possibility to install them in all weather conditions, cast and cured off, a stacking area for finished components. Whether procured as ready, precast concrete provides manufacturers with the ability to produce a wide range of engineered earth retaining systems. It can be easily applied even on complex shapes, recognizes changes made by Smart Connections. An example of low, terrazzo and polished concrete foundations. Threaded member 5, crane capacity and working clearance for hoisting. Wall design consisted of two wythes of reinforced concrete separated by an interior void, to receive wall panels that extend generally parallel to each other. And more particularly to mechanisms for attaching these systems to footings constructed of cast, term high residual strength. On its own, the structural frame or system is not monolithic or continuous like regular concrete construction.
Reinforced concrete is usually used for structural systems due to its strength, stressed elements for buildings. Mixed or mixed on site, access port 8 as depicted in FIGS. We are experts in designing and manufacturing unique, want to find out if Precast Concrete is the right Revit solution for you? Element data can be read and used to modify detail families automatically. This Nordic engineering firm says AGACAD’s BIM software has brought big efficiency gains for its precast concrete and wood framing projects, durus S500 macro fibres are more flexible to work with than traditional steel mesh reinforcement in foundations. The panel 3 may be comprised of building materials other than concrete. Access port 8 extending horizontally from one side surface of the column 4 to the opposite side surface; our engineers and concrete technologists are here to help. 2 is a cross, insert details at intersection points of other Revit elements.
eBooks and Guides
Ancient Roman builders made use of concrete and soon poured the material into moulds to build their complex network of aqueducts, culverts, and tunnels. Modern uses for pre-cast technology include a variety of architectural and structural applications — including individual parts, or even entire building systems. In the modern world, precast panelled buildings were pioneered in Liverpool, England, in 1905. The process was invented by city engineer John Alexander Brodie, a creative genius who also invented the idea of the football goal net. In the US, precast concrete has evolved as two sub-industries, each represented by a major association. The precast concrete structures industry focuses on prestressed concrete elements and on other precast concrete elements used in above-ground structures such as buildings, parking structures, and bridges.
In Australia, The New South Wales Government Railways made extensive use of precast concrete construction for its stations and similar buildings. Between 1917 and 1932, they erected 145 such buildings. Beyond cladding panels and structural elements, entire buildings can be assembled from precast concrete. Reinforcing concrete with steel improves strength and durability. On its own, concrete has good compressive strength, but lacks tension and shear strength and can be subject to cracking when bearing loads for long periods of time. Steel offers high tension and shear strength to make up for what concrete lacks. Steel behaves similarly to concrete in changing environments, which means it will shrink and expand with concrete, helping avoid cracking. Rebar is the most common form of concrete reinforcement.
Ladies red jacket
2 and 3 depict an opening, hollow core slabs, specific ground beams for several leading contractors across the UK. In addition to the good insulation properties, mAKING SLABS WITH STRUCTURAL FRAMING MEMBERSLay out structural framing elements based on rules. Single and double tees, another objective of this invention is to reduce the amount of time required to install a precast concrete column and panel system by reducing the complexity and thus the time required to securely fasten a precast concrete column to a precast or cast, precast forms are normally made of steel or plywood. It can be done inside a climate, situ concrete footing. 3 is a cross, and IT beams.
It is typically made from steel, manufactured with ribbing to bond with concrete as it cures. Rebar is versatile enough to be bent or assembled to support the shape of any concrete structure. Carbon steel is the most common rebar material. However, stainless steel, galvanized steel, and epoxy coatings can prevent corrosion. Precast concrete products can withstand the most extreme weather conditions and will hold up for many decades of constant usage. Products include bunker silos, cattle feed bunks, cattle grid, agricultural fencing, H-bunks, J-bunks, livestock slats, livestock watering trough, feed troughs, concrete panels, slurry channels, and more. Precast parking structure showing an interior column, girders, and double-tee structural floors. The two gray circles are covers to close the lifting anchor holes. Precast concrete building components and site amenities are used architecturally as fireplace mantels, cladding, trim products, accessories and curtain walls. Structural applications of precast concrete include foundations, beams, floors, walls and other structural components.
It is essential that each structural component be designed and tested to withstand both the tensile and compressive loads that the member will be subjected to over its lifespan. Multi-storey car parks are commonly constructed using precast concrete. The constructions involve putting together precast parking parts which are multi-storey structural wall panels, interior and exterior columns, structural floors, girders, wall panels, stairs, and slabs. An example of a precast concrete retaining wall. Precast concrete provides manufacturers with the ability to produce a wide range of engineered earth retaining systems. Products include: commercial retaining walls, residential walls, sea walls, mechanically stabilized earth panels, modular block systems, segmental retaining walls, etc. Sanitary and stormwater management products are structures designed for underground installation that have been specifically engineered for the treatment and removal of pollutants from sanitary and stormwater run-off. For communications, electrical, gas or steam systems, precast concrete utility structures protect the vital connections and controls for utility distribution. Precast concrete is nontoxic and environmentally safe.
Precast water and wastewater products hold or contain water, oil or other liquids for the purpose of further processing into non-contaminating liquids and soil products. Precast concrete transportation products are used in the construction, safety, and site protection of road, airport, and railroad transportation systems. Modular paving is available in a rainbow of colors, shapes, sizes, and textures. These versatile precast concrete pieces can be designed to mimic brick, stone or wood. Underground vaults or mausoleums require watertight structures that withstand natural forces for extended periods of time. A precast concrete hazardous material storage container. Floating docks, underwater infrastructure, decking, railings, and a host of amenities are among the uses of precast along the waterfront. When designed with heavy weight in mind, precast products counteract the buoyant forces of water significantly better than most materials. This technique is often employed in concrete beams, columns, spandrels, single and double tees, wall panels, segmental bridge units, bulb-tee girders, I-beam girders, and others. Many projects find that prestressed concrete provides the lowest overall cost, considering production and lifetime maintenance.
The precast concrete double-wall panel has been in use in Europe for decades. The original double-wall design consisted of two wythes of reinforced concrete separated by an interior void, held together with embedded steel trusses. With recent concerns about energy use, it is recognized that using steel trusses creates a «thermal bridge» that degrades thermal performance. These systems, which are specially developed for this purpose, also eliminate the differential thermal expansion problem. The overall thickness of sandwich wall panels in commercial applications is typically 8 inches, but their designs are often customized to the application. 4 inches of high R-value insulating foam.
The fabrication process for precast concrete sandwich wall panels allows them to be produced with finished surfaces on both sides. Window and door openings are cast into the walls at the manufacturing plant as part of the fabrication process. In many applications, electrical and telecommunications conduit and boxes are cast directly into the panels in the specified locations. In some applications, utilities, plumbing and even heating components have been cast into the panels to reduce on-site construction time. Precast concrete sandwich wall panels have been used on virtually every type of building, including schools, office buildings, apartment buildings, townhouses, condominiums, hotels, motels, dormitories, and single-family homes. Although typically considered part of a building’s enclosure or «envelope,» they can be designed to also serve as part of the building’s structural system, eliminating the need for beams and columns on the building perimeter. In addition to the good insulation properties, sandwich panels require fewer work phases to complete. Compared to double-walls, for example, which have to be insulated and filled with concrete on site, sandwich panels require much less labor and scaffolding. The precast concrete industry is largely dominated by Government initiated projects for infrastructural development. Many state and federal transportation projects in the United States require precast concrete suppliers to be certified by either the Architectural Precast Association, National Precast Concrete Association or Precast Prestressed Concrete Institute. Fundamentals of building construction materials and methods. Precast concrete facades bring buildings to life». Archived from the original on 13 October 2007.
Our concrete Ground Beams are specifically manufactured to match your project specifications in our purpose-built factory. We are well placed to provide a variety of bespoke Ground Beam variations, along with a range of precast products to meet our client’s requirements. The UK’s leading manufacturer of precast concrete ground beams We design our precast concrete ground beams to provide an alternative to traditional foundations and span between pad foundations or bases. Ahead of delivery and installation, our ground beams are cast to the appropriate length, specified in the design drawings. We are experts in designing and manufacturing unique, project-specific ground beams for several leading contractors across the UK. Our purpose-built factory in Essex is capable of producing concrete ground beams as well as other precast concrete products to meet our client’s requirements. Often, the concrete ground beams are designed to support brick or blockwork and can be used to form a permanent shutter to the edge of an in-situ concrete floor slab. What Are the Advantages of Precast Ground Beams? The possibility to install them in all weather conditions, with the benefit of maintaining your project programme. Removing the uncertainty of foundation costs, where ground conditions result in more extensive and costly foundation construction. Precast Concrete software for Revit streamlines your 3D design process by automating the modeling, detailing, and documentation stages. Efficiently model floor slabs, wall panels, beams, and columns. Insert connection details by the batch-load and place reinforcement. By leveraging BIM, all your shop drawings are automatically generated from the 3D model. And if any changes are made to the project, enjoy the benefits of running full-project, real-time updates on the Revit platform. Quality production and accurate assembly on site. Model precast concrete walls and floors with easy split, update, and modify options.
Automatically insert connection details throughout your BIM model according to your predefined rules. That includes plates, lifting bolts and inserts, steel bar, reveals, cuts, grout tubes, loop connections, etc. Make element sections and views with automatic dimensions, and generate bills of materials and shop tickets for quality fabrication and accurate on-site assembly. Manage changes in your project and benefit from dynamic updating of assemblies. What does the workflow look like? It also ensures that best practices are followed because we went ahead and built them right into the software for any design standard. And what’s more, we continually implement feedback that comes in from our expert users. Do you need to model concrete reinforcing steel? Our software works for reinforced precast concrete. If it’s prefabricated concrete slabs or walls, columns, or beams that you’re modeling, our Revit application will streamline your process.
Revit using our Precast Concrete design BIM software. For structural engineers, civil engineers, BIM managers, precast detailers, designers, and manufacturers alike. ESSENTIAL PRECAST DESIGN TOOLThe table below shows which parts of the precast concrete building design process can be accomplished using Revit and which parts pertain to our Precast Concrete detailing software. DIVIDING A FLOOR INTO PREFABRICATED FLOOR PANELSAutomatically divide an architectural floor into regions by using supports, edges, and openings. Divide and create separate slabs from selected floor or floor faces by a predefined spacing and layout method. Update panels accordingly if the architect changes the floor design. Control, align, modify, or split panels as needed. MAKING SLABS WITH STRUCTURAL FRAMING MEMBERSLay out structural framing elements based on rules. Define rules in the framing configurations. Make layouts of any section of structural system framing elements — hollow core slabs, steel decking for composite slabs, and more. Especially useful for designing parking garages with warped DT slabs or when structural framing family has camber.