建筑工程项目管理教程 (19).ppt

Section 2 Project ClaimChapter 9 Project Contract Managementconstruction period claimexpense claim1 The calculation methods of construction period claimThe direct methodThe proportional analysis methodThe network analysis method 1.The direct methodnSome incidents happened during the construction of a project:from May 20 to May 26,the project was shut down due to the failure of the contractors construction equipment,and from May 24 to June 9,the project was also stopped due to the delayed delivery of drawings of the owner.How many days can the contractor claim for the construction period?nThe failure of the construction equipment is the responsibility of the contractor,so the contractor is not entitled to claim compensation from May 20 to May 26.The delayed delivery of drawings is the responsibility of the owner,and the contractor is entitled to claim for the construction period,which is 14 days in total from May 27 to June 9.2.The proportional analysis methodAn accident occurred in the foundation construction of a project,resulting in the increase of project quantities from the original 2800m to 3500m,and the original construction period is 40 days,then how many construction days the contractor can claim for?Claim value of the construction period=original construction period the quantity of new work/the original work quantity=40(3500-2800)/2800=10 daysThe claim value of the construction period=the contract construction period the quantity of new work(or the cost of new work)/the quantity of the project(the contract price)Critical workNon-critical workthe delay time shall be equal to the claimed construction periodBecome the critical workStill remains the non-critical workThe delayedworkthe delay time-the total time differencedoes not exist the claims for the construction period3.The network analysis method2.the calculation method of the expense claim（1）The actual cost method（is commonly used）（2）The total cost method(after multiple claims)The claim amount=the actual total cost-the estimated total cost at the time of bidding quotation（3）The modified total cost methodIn the principle of the total cost calculation,removing some unreasonable factorsthe claims relate to seven categories including the owners breach of the contract,unfavorable natural conditions,and the increasing orders from the engineer,etc.A total of 21 single expense claims and 1 construction period claim occurred,with a total claim amount of 2.291 million yuan,accounting for only 2.83%of the contract amount.The contractors claims on the diversion project of Lubbog hydropower stationnumberThe classification of the reasons for claimsClaim incidentsClaim amount/ten thousand yuan The percentage it occupiednamefrequencyYenRMBSum up（RMB）1The owners breach of the contractNo water,no electricity,no oil,no qualified roads72260.535.4324.5510.72The designated subcontractors breach of the contractUnqualified concrete61078.4137.9247.0020.53Unfavorable natural conditionsIncrease drainage capacity,increase concrete casting and steel mold24125.99105.52140.2761.24The disruption from other contractorsAdd drainage equipment1524.860.625.042.25The increasing orders from the engineer Increase the quantity of tunnel grouting2204.620.882.601.16The deficiency of the contractTelex fee difference11.791.790.87The increasing number of policiesThe increasing road maintenance fees17.217.213.2Sum up218203.41160.01229.10100The statistical table of the contractors claims on the diversion project of Lubbog hydropower stationThe reasons for the relatively small amount of project claimsn1）The contract is relatively simple,and the design reaches a better depth when bidding,so that there are few engineering changes in the implementation.n2）relatively complete and strict contract documentsn3）In order to enter the Chinese construction market,the Japanese contractor ignored many cases where claims could be made under the terms of the contract.nFor example,the additional cost caused by the unforeseeable adverse geological conditionsnthe additional cost resulted by the conditions that the actual amount of underground seeping water is several times of the data provided by the owner.Thanks for watching！