In recent years, a new business model is becoming more and more popular, in brief, Design and Build package, which is let out by the owners, especially for the government agencies, as a result of this, the contract is known as Design-Build contract, and the construction team is known as the design-builder. In contrast with the conventional design-bid-build contract, in which the design is totally made by the owner, then bid on and completed. While in the new type of the contract, related information like fixtures, fittings and necessary equipment for a completed fully functional building are included in the Design and Build package. Apart from that, staffs such as finding the site, arranging funding and applying for all necessary statutory consents are also included in the Design and Build package. The design-builder shoulders the responsibility for the owner’s requirements of the whole project, serving for the project’s goal. To get a satisfactory building, the owner selects the best ideas presented by different D&B constrictors, for accomplishing the project. After that, the owner will hire the consortium of several contractors instead of just one contractor. At the beginning of the project, defined as the phase 1 of the project, they take a concept developed by the owner and complete the detailed design, at the same time, they design phase 2. And also they will proceed with the construction by pending the owner’s approval on the design. In this type of Design and Construction technology, it has done favor to the contractors to complete the construction efficiently.#p#分頁標(biāo)題#e#
By taking advantage of the proposal of the opportunities for economic growth in LIPOLO, the DESIGN WELL LTDwon this contract after the fierce competition over the last six months. The workers of this construction project will spare no effort to complete the project. So far, some other constructors have subcontracted the mechanical and electrical work. In the early stage of the project, the DESIGN WELL LTDcommitted to holding a Contract Fair. The purpose of the Contract Fair is to educate the local LIPOLO subcontractor and supplier community not only with knowledge of the project but also with the opportunities that exist. Shortly after the Fair are the routine briefings to subcontractor and supplier community, for the sake of keeping them well informed of specific solicitation opportunities
It is true that a good construction plan is an extremely challenging problem, because it involves specific problems or opportunities that in request of intelligence and creativity. Needless to say, the past experience and numerous possible plans lend a hand to the construction planning. However, the development of a good facility design requires the development of a construction plan to keep in track of. On a large scale, the planner must weigh the costs and reliability of different options while at the same time insuring technical feasibility (Jeff,2005). However, construction planning is more than the above, as the building process is dynamic as the site and the physical facility change over time as construction proceeds; it needs to keep up with the changes. In a nutshell, construction operations tend to be fairly standard from one project to another, while structural or foundation details might differ considerably from one facility to another. That is to say, it is almost impossible to offer direct guidance on general procedures or strategies to form good plans under all the circumstances. To solve this problem, in case this problem occurs during the design process, planning is divided into sub problems in the strategies of decomposition, and subdivide the general activities into more specific tasks in the hierarchical planning, which has been prove to be of good use in many cases. In addition, some recommendations or issues describing the characteristics of good plans are also available, but construction planner should not depend on these to discover a good plan because it doesn’t tell.
Concluding from the above mentioned, the planning process for construction projects can be divided into three stages from the standpoint of construction contractors or the construction division of large firms. The planning gets through the construction projects, in specific, at the very beginning of the plan for the construction of a facility, at that time, the zoning and planning boards of the AHJ will review the overall compliance of the proposed building with the municipal General Plan and zoning regulations. In the following time, once the proposed building was approved, architectural, structural plans and detailed civil must be submitted to the municipal building department to decide compliance with the building code and even the fit with existing infrastructure. Then at the time when evaluation of the final output of the construction, it is often the case for the municipal fire department to review the plans for compliance with fire-safety ordinances and regulations. To get it boiled down, the planning process for construction projects take place from the very beginning of the project to the final of the construction.#p#分頁標(biāo)題#e#
The cost expenses involve many aspects, and they can be listed according to different stages of the construction project. At the beginning of the facility: the followings are taken into consideration, first of all, land acquisition, secondly, Planning and feasibility studies, what follow are architectural and engineering design, construction financing, owner’s general office overhead, construction, including materials, equipment and labor, field supervision of construction , insurance and taxes during construction, equipment and furnishings not included in construction, inspection and testing. In the following years of the project, the additional expenses will occur: land rent, if applicable, periodic renovations, labor and material for maintenance and repairs, financing costs, utilities, operating staff and what’s the most unpredictable is the Insurance, which can be proved in the following case: because of the injury out of 600,000 labor hour. The majority of the workers lost their lives while only a very minority was found, but both back strains. A larges quantity of special designs including conference rooms, collaboration laboratories, class rooms and break areas were built to offer Laboratory the latest supports of high-performance computing. In this way, many special materials are required, 650 tons of reinforcing steel, 1,400 tons of structural steel, 12,000 cubic yards of concrete, more than 1,350 miles of fiber optic cable and more than 8,000 gallons of paint.
As things go on, after collecting all of the relating data, it is adequate time for the estimator to conclude the cost plan of the whole project, which relates to lobar, equipment, subcontracts, overhead, taxes, insurance and so on. For a large construction company, more than one estimator is employed. And they play different roles to make the plan more accurate. For instance, in the construction project, one may only estimate some specifics, such as, electrical work and the other aspects like excavation, concrete and forms may be done by another one. When put the project into practice, some cost estimators will be employed to keep track of the project development, in case of accidents. Since the estimating involves a large numbers and will refer to complex mathematical calculation and it often beyond cost estimators, at that time, computers will do a favor to people, and it will usea computer database containing information on the costs and conditions of many other similar projects, anglicizing the quantities of the numbers quickly and accurately. As a result, the calculation of computer can relieve estimators of much of the drudgery relating to routine, time-consuming calculations and repetitive in some degree because the computers cannot do all of the task of the estimators. The larger a project is, the more complex of the calculations, but nowadays, more advanced cost estimating software has been developed to keep up with the complex project analysis, which includes highly complex financial plans. As calculations of the construction are such a complex process, so the analysis may be sold when portions of the project are finished. As a consequence, the building construction project may make use of the already analysis data, applying them in each stage of the building construction project. However, not all of the English speaking countries use these quantity surveyors; the United States is an exception.#p#分頁標(biāo)題#e#
It is a practical problem that some space shall be removed to make room for the cars, by which the most workers go to work. The total number of the people arrive at the laboratory is over 12,000. Among them, some ride in car or van pools, some ride bicycles and the other transportations except cars or trucks, but they only possess a small number of the whole staff. So when the largest parking lot in TA-3 eliminated over the next three months, for the new Strategic Computing Complex. Taking this into consideration, The Lipolo will award a contract for a new parking lot elsewhere in TA-3 to substitute the original spaces in the large lot between two roads, south of the complex. The contract, which is part of the many million dollar project, also requires improving the road into for road to make driving in the TA-3 area safer.However, the above mentioned costs is made under formal conditions, there is always exceptions, for example, wasted materials, inclement weather, shipping delays, and other factors. In addition, a lot of problems will occur during the beginning process: physical constraints of the site, the order of the operations, what the size of the crew and so on.
Eliminating waste
消除浪費(fèi)
All waste material incidentals to the construction or demolition industries can be defined construction waste, which resembles waste building materials, it consists of dredging materials, tree stumps and rubble. Because many certain components of construction waste contain hazardous substances such as lead and asbestos and so on, so they will do harm to the environment once abandoned, for example, once the plasterboard is landfilled, it will release hydrogen sulfide, a toxic gas. However, much construction waste can be recycled, especially according the guidance of the government and local authorities. As an illustration, rubble can be crushed and reused in construction projects while waste wood can be dealt in that way too. Moreover, government or local authorities make them as rules that the quantity of the waste sorted before it is hulled wait to treatments facilities or landfills; hence, it will reduce the waste. On the other hand, the authorities have ascertained that some hazardous materials should be moves or demoted, according to safety guidelines and restrictions. Remove the toxic elements such as lead, asbestos or radioactive materials.
It is a common sense that, all three groups of the construction: the owner, the contractor and the worker, try to benefit from the project. However, the conventional design bid build environment does not produce the best results for three groups, on the contrary, each of them are often quarrelling with each other to try to surprises another, compared to a downward spiral of lose-lose. Consequently, a new construction style comes into being, lean construction, and production management-based project delivery system making the best use of the delivery of value. It’s based on collaboration, communication and mutual respect of the three. All three groups take advantages of the lean construction because its aim is to maximize value while minimize waste, pursuing perfection. Reducing the waste caused by unpredictable workflow, which includes seven categories: defects, over processing, maintaining excess inventory, unnecessary movement of people, overproduction, and delays due to waiting for upstream activities to finish before another job can begin and unnecessary transport of materials. From the aspect of the benefit of all project stakeholders, lean construction concentrate on maximizing value and eliminating waste, and it does has advantages#p#分頁標(biāo)題#e#
Project Management
項(xiàng)目管理
Of the two sides in the construction, the constructor need to manage construction, which defined as construction management, according to the
Construction Management Association of America (CMAA), a Construction Manager shoulders the 120 most common responsibilities falling into 7 categories. In specifics they are Project Management Planning, Quality Management, Safety Management, Contract Administration, Cost Management, Time Management, and CM Professional Practice which includes responsibilities and management structure of the project management team definition, organizing and lead by implementing project controls, identification of the of project design and construction giving rise to disputes and claims, and definition of role and responsibilities and development of communication protocols. In a nutshell, either the study and practice of the managerial and technological aspects of the construction industry or one party of a business model provides both design and construction advice serving as a construction consultant
The two disciplines of project are life cycle and methodology, each of them play an important role individually, thus to guarantee the process of project. That is to say, the life cycle, moderate related to project, is usually consisted of beginning, programming, performance/control, completion, and work repeated period (Whitty, S.J. and Schulz, M.F, 2007). And these are changeable; the detail change follows with business, project customer need. Needlessly to say, the methodology is essential to the project, it provides methods to keep on stability for the project progress.
Optimizing performance at one stage of the process may do harm to the whole project in case additional costs or delays occur in other stages. A case in point is that, saving money on the design process, it would be a wrong decision if the result is beyond construction costs.
The project design will be changeable during the project. To put it mildly, new information technologies especially the internet and specialized extranets can be instrumental. And information like less expensive and with desired performance new materials and automate construction processes is of great value and importance. In contrast with the above mentioned, the communication and coordination among the participants is of essential importance for the overall project as well as fragmentation of project management among different specialists.
To the owner, who will live in the project, the big success of a project is of high quality of work and performance. To provide build project structure of process assurance project leadership of request performance is the main task of the quality management.#p#分頁標(biāo)題#e#
Construction safety
施工安全
According to some studies, construction is the most dangerous land based work sector from the aspect of construction workers, compared with the design or finance; they are engaged in aspects of the industry, and work predominately on construction sites. Apart from the hazards and risks unknown, electricity and being buried while working in excavations, the biggest hazards on spot is falls from height and vehicles in a constantly changing work environment. In addition, the asbestos, solvents, noise, cement dust, and manual handling activities on site are the other main health hazards. And how dangerous the construction work is can be seen from the following statistics: in the U.S., the incidence rate of the fatal occupational injuries in the construction sector in 2001 is 13.3 per 100.000 employed workers. And the construction industry underwent 481.400 nonfatal injures and illnesses at the rate of 7.9 %. While in the European Union, the fatal accident rate is 13 workers contrasted with 5 per 100.000 on the average. To be exact, the fatalities are 20% compared with the 6% of U.S workers. Because of this, the European Union Directives: notablyDirective 89/391 (the Framework Directive) and Directive 92/57 (the Temporary and Mobile Sites Directive), to protect workers according to European Union Law. For the sake of protecting workers health and safety, the legislation is presented to the Member States.
Legal consideration
法律角度
Since a construction project is a connection of contracts between two or more parties to exchanging a series of obligation equally and balancing and other legal obligations. So it should be implemented under the legal framework to govern the property. These consist of the governmental regulations on the property use, and the obligations occurring during the process of construction. A typical compelling example is the time element, if the construction delayed whatever, it results in costing money, and if the construction happens to be stuck in the bottlenecks, the cost will be more expensive. Unless both sides promise to be responsible to the obligation, the contracts should never be signed. However, once the contract is signed, it makes the expectations and paths to fulfill those expectations clear, consequently, the project will be accomplished perfectly, at least more smoothly contrasted to the poorly drafted contracts. Finally, a construction project will be diagnosed as failure if it fails to comply with the zoning and building code requirements. On one hand, the requirements are from the desire to keep things from collapsing or explosion; on the other hand, legal requirements come from the custom or a matter of expectation or malum prohibited considerations. It is often the case that the lawyer will try his best to defend the customer by seeking changes or exemptions in the law, in which the rule is no longer inapplicable. Legal advisors are hired for the reasons that they will come up with proper solutions to prevent problems; what’s more important is to identify ambiguities and other potential sources of trouble in the contract structure at the very beginning. During the process of the project, they are still on the guard to avoid and resolve conflicts that arise. They will make full use of the obligations, applying them into the real project.#p#分頁標(biāo)題#e#
Conclusion
結(jié)論
Once completed, the LIPOLO Laboratory, a research institution of all purpose, as a national security base, will be operated by Group International for the Department of Energy's National Nuclear Security Administration, and a team composed of National, the University, and Technologies for the sake of ensuring the safety and reliability of the UK nuclear stockpile. To realize these, the technician will develop technologies, thus to solve problems on energy, environment, infrastructure, health and global security concerns both for the country and the globe; in the mean time, to protect the country from weapons of mass destruction.
References
參考文獻(xiàn)
Cronin, Jeff (2005). S. Carolina Court to Decide Legality of Design-Build Bids. Construction Equipment Guide. Retrieved on 2008-1-4.
Holm, Ivar (2006). Ideas and Beliefs in Architecture and Industrial design: How attitudes, orientations, and underlying assumptions shape the built environment. Oslo School of Architecture and Design. ISBN 8254701741.
School districts increasingly seek alternate financing : North County Times - Californian BLS. 2002 Census of fatal occupational injuries. Fatal injuries. Washington, DC: U.S. Department of Labor, Bureau of Labor Statistics, Safety and Health Statistics Program
BLS. Survey of occupational injuries and illnesses. Washington, D.C.: U.S. Department of Labor, Bureau of Labor Statistics, Safety and Health Statistics Program. 2002. Nonfatal (OSHA recordable) injuries and illnesses. Industry incidence rates and counts.
NIOSH Construction. United States National Institute for Occupational Safety and Health. Retrieved on 2007-10-15.
Cronin, Jeff (2005). S. Carolina Court to Decide Legality of Design-Build Bids. Construction Equipment Guide. Retrieved on 2008-1-4.
^Holm, Ivar (2006). Ideas and Beliefs in Architecture and Industrial design: How attitudes, orientations, and underlying assumptions shape the built environment. Oslo School of Architecture and Design.
Project Management Institute (2003). A Guide To The Project Management Body Of Knowledge, 3rd ed., Project Management Institute. ISBN 1-930699-45-X.
Stellman, Andrew and Greene, Jennifer (2005). Applied Software Project Management. Cambridge, MA: O'Reilly Media. ISBN 0-596-00948-8.
Thayer, Richard H. and Yourdon, Edward (2000). Software Engineering Project Management, 2nd Ed., Wiley-IEEE Computer Society Press. ISBN 0-8186-8000-8. #p#分頁標(biāo)題#e#
Whitty, S. Jonathan (2005). A Memetic Paradigm of Project Management. International Journal of Project Management, 23 (8) 575-583.
Whitty, S.J. and Schulz, M.F. (2007). The impact of Puritan ideology on aspects of project management. International Journal of Project Management, 25 (1) 10-20.
Pettee, Stephen R. (2005). As-builts – Problems & Proposed Solutions. Construction Management Association of America.
Verzuh, Eric (2005). The Fast Forward MBA in Project Management, 2nd, Wiley. ISBN 0-471-69284-0 (pbk.).