วันอังคารที่ 28 กุมภาพันธ์ พ.ศ. 2555
Luxury Condos - Trump Toronto Construction
วันอังคารที่ 24 มกราคม พ.ศ. 2555
The Joe and Rika Mansueto Library: A Construction Retrospective
วันพุธที่ 12 ตุลาคม พ.ศ. 2554
7 of 10 | Physics Concept Construction | Free Body Diagram | Experience Success | HDTVEDU 1805
วันพฤหัสบดีที่ 15 กันยายน พ.ศ. 2554
5 of 10 | Physics Concept Construction | Free Body Diagram | Experience Success | HDTVEDU 1803
วันศุกร์ที่ 9 กันยายน พ.ศ. 2554
Excavator Construction - Spider Excavator For Extreme Terrain
The usual track excavator is a common machine used for logging and construction industry. On the steeper grounds, the operator will need to bench on the slope to be able to gain access for them to ensure their safety. Though, this process not desirable always because of some instances when the stability of the slope is concerned.
Spider excavator is a type of excavator which has the ability to walk and perform task in all terrain places. It has 4 legs and it can able to walk like a spider on steep slopes without the need of constructing large benches and it will not create any undue disturbances on the ground. It will only produce a ground compaction from the base of its spider-like legs.
The spider hoe or the legs uses the buckets for walking in to the rough terrain. The bucket is tightly placed at the slope downward the machine; the front legs that are located below the wheels at the back are lifted as the telescopic arm trusting the machine up to the hill through its wheels.
The operator gives power for driving as he increases the tension of the winch. Due to the rough terrain, the wheels must be adjusted continuously so that the operator can stabilize the spider hoe horizontally. Every single movement of the machine is adjusted by the operator manually; it is possible to apply for up to 8 functions simultaneously using the joy sticks and the pedals for the safety operation of the machine.
It is also equipped with a hydrostatic rubber tires for its traveling for the speed of 6kph when in flatter grounds. Spider like legs is able to step over the small tress and can over obstacles for as high as 2 meters.
Larger spider excavator machines have 8,100kg operating weight and with excavating performance of 15,000kg. The long stick of the machine can reach 26 feet from the center when it is fully extended. Boom is connected nearby the center of the machine which has gravity for allowing excellent torque.
The spider excavator can simply straddle the trench by making use of its own weight, optimizing its ability by digging hole under itself. Prepared with thumb and twisting wrist for the bucket which adds to the versatility of the machine.
In addition, because of its light weight and high performance characteristics, the spider hoe is ideal for using the helicopter to transfer the machine to the remote sites, fully equipped with fuel and already on the go for work.
วันพุธที่ 3 สิงหาคม พ.ศ. 2554
Factors to accede in Bridge architecture account for Bridge construction
The framing plan drawing is an accurate and detailed graphical representation of all the geometric control required for the detailing of column, section, beam or girder framing. This information is crucial and must allow a room for the authentication of structural calculations, dimensions and drawings by the Engineer of Records (EoR).
The framing plan should clearly describe span lengths, distances between diaphragms, chord lengths, distances between respective girders, elevation angles, girder dimensions, girder radius of curvature and other specifications as required by the EoR.
Concrete components of a bridge are pre-fabricated members and require accurate, complete and standard compliant plans for its fabrication. Different drawings are required for using reinforcing steel, post-tensioned or pre-stressed concrete components. Bridge detail drawings for concrete members may require 3D models to render plan and elevation views along with sections and details.
The drawings may be prepared using computer aided design (CAD) tools and must show the horizontal and vertical placements of concrete, reinforcement steel and pre-stressed tendons. Further, the spacing and placement of rebars must be clearly shown with appropriate dimensions. For bridge deck slab detailing the spans must be separated by construction joints into two parts called positive moment field and negative moment field. The drawing may provide additional construction joints to restrict the volume of concrete to be required for fabrication. The placement order must be such as to ease the latency for tension in the slab due to girder displacement.
Post your queries on Bridge detailing to us info@outsourcestructuraldesign.com
วันอังคารที่ 26 กรกฎาคม พ.ศ. 2554
Importance Of Structural Steel Detailing For Modern Construction
Steel detailing can be referred as detailed drawings, plans and other construction documents. Each steel member plays important role in building stability and that must be placed with maximum accuracy. This task can be completed by professional steel detailers. Each and every specification of steel member can be evaluated by using structural steel detailing. This technology is used to understand the specification of material, dimensions and size. Dimensions and size of each steel member must be evaluated with accuracy as they are the base of any building. A small error in dimension can cause big disaster so professional detailers are using latest software and tools.
At the present time all countries are seeking faster infrastructure growth to make valuable impression in global world. Steel detailing ensures faster infrastructure growth with maximum stability. This technique is used for all kind of building structures like residential, commercial, institutional, industrial and other special structures.
Basic structural detailing services include the following:
• Shop drawings, fabrication drawings, Erection drawings, field details, framing plans and anchor bolts
• Sheet metal layouts
• Material estimation, tendon and chair bill of materials, felt calculations
• Post tension detailing
• Joist detailing
• Grating layout and material list
• Beam-beam connections, column-column connection, beam-column connection, column-beam connection, slab-column connection, slab-beam connection
• Working drawings for structures
Engineers are using this technology for material estimation that will be used in building construction. It avoids possibility of material wasting and help to save time and cost. Innovation of software like STAAD, RISA, SAP2000, RAM, PCA, SAFE, SDS/2, Tekla and ETABS increased its important in structural industry. All the application takes place on computers under recognized software so accuracy is guaranteed.
There are so many firms are providing low cost steel detailing services. By outsourcing you can save your time and cost. If you need instant quotes then feel free to email us at info@structuralcaddservices.com
For more information about our services please email us at http://www.structuralcaddservices.com/structural-steel-detailing.php
วันศุกร์ที่ 2 กรกฎาคม พ.ศ. 2553
Frozen Master Bath Water Pipes - Syncon Homes Construction Defect
วันเสาร์ที่ 1 พฤษภาคม พ.ศ. 2553
The Value of Construction Inspections
Buyers of re-sale homes almost always have their homes inspected by a professional inspector. Buyers of new homes, however, often do not take this important step. There are several reasons for this:
The buyer is getting a brand new home, and thinks that the inspection is an unnecessary added cost.
The buyer feels that they are protected by the builder's one-year warranty for workmanship, plus extended structural warranty.
In many cases, the home is inspected by city inspectors as a part of the permitting process.
Buyers believe that they can rely on the builder's reputation.
The builder is resistant to idea of third party inspections.
Buyers are not aware that a home inspection is a recommended alternative.
The buyer plans to "keep an eye" on the construction.
A Business Relationship
The construction of a home is a big project involving many contractors and suppliers. As the buyer and homeowner you are the financer and recipient of the final product. If you are like most people, this is your biggest investment. Understandably, most people want to establish a good rapport with their builder. They must rely on the builder throughout the job, and for warranty and service work after completion. They feel that they need the builder's friendship and good will, and do not want to risk damaging the relationship.
You will need to come to terms with this in your own mind. Do not allow your anxiety about the construction process to obscure the fact that you have a business relationship with your builder. You are working together under a contract. It is possible to be cordial and respectful, while maintaining the right to bring up problems and concerns. It is best to establish the ground rules for your relationship at the beginning of the project. At some point, you may need to tell the builder that something is not acceptable to you.
Schedule Inspections
Let the builder know at the outset that you will be getting a construction inspection. You may hear (from the builder or others) that this is unnecessary, that city inspections will be done, that this is an unusual step, etc. Stand your ground on the inspection decision. After you have let the builder know that you will be getting an inspection, send an email or written note clarifying when your inspections will be done. Make it clear that you will need to have the utilities connected for your final inspection. Allow enough time after the final inspection for corrections to be made before closing. Check with your inspector about which inspections he recommends. The three that come to mind are: foundation, pre-sheetrock, and final inspection.
Foundation Inspection
With some complicated foundations, you should have an engineer review the construction as it progresses. In other cases, a licensed inspector can do the job. Usually, city inspectors do a layout inspection, making sure the foundation does not overlap building lines. Whether or not you are in a city, ask your inspector to double check this. Ask for a copy of the "forms survey", if the builder has one. If a forms survey has not been done, carefully measure from the property lines. If there is some doubt about whether the structure encroaches over building lines, have a survey done before proceeding. In addition to the layout, the inspector will check the steel content, depth of footings, post tension cables, and other parts of the foundation.
Pre-Sheetrock Inspection
Most builders invite the homeowner to do a walk through after framing, HVAC and plumbing rough-in, and electrical wiring are complete. This is a good time to look at your outlet locations and window and door placements. Make sure that any changes in the plans have been picked up and made by the sub contractors.
While you check for layout items, your home inspector can look closely at the construction. His report might include: broken plumbing lines, improper flashing, cut or bowed studs, inadequate bracing, beams that over-span their strength, AC ducts that are crushed, etc. These items are easy to correct at this point, before sheetrock and finish materials are installed.
It is not realistic to expect the construction to check out perfectly. Every builder in every price range will have some items to correct, both from the city and the third party inspector. Let your builder know that you will provide him with the report immediately, so that he can address the items before the walls are closed up.
Final Inspection
You will need to have all utilities on in order to complete this inspection. Normally, the builder requests a "walk-thru" inspection with you when the house is substantially complete. If utilities are on, you could schedule your inspector at this time. You can focus on paint and touch up items, while your inspector conducts a more thorough inspection, checking for leaks, non functional outlets, final grading of the lot, flashing problems, appliance operation, voids in mortar, etc.
The Construction Inspection
At some point you will sell you home, and your buyer will likely have your home inspected. Some of the items the inspector catches now may seem minor, but they will come up later in your buyer's home inspection if they are not corrected. It is in your best interest to have everything nailed down now. If there are items that cannot be fixed before closing, and you cannot delay closing, ask the builder to sign a written list of items to be repaired or completed.
Building a new home can be an exciting and rewarding experience. A new home can deliver the right floor plan and finishes for you. It is a complicated project and huge investment. The support, advice and information that you will gain from a third party inspection is invaluable. Do not leave out this important step in the building process. It is well worth the investment.
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วันจันทร์ที่ 26 เมษายน พ.ศ. 2553
Post Tension Concrete Construction
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