1、August 2008 English price group 99No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 93.030!$RdG“1476536www.din.deDDIN EN
2、 1917 Corrigendum 2Concrete manholes and inspection chambers, unreinforced, steel fibrewww.beuth.deThis corrigendum should be filed together with the translation of the standard to which it refers and a corresponding note made on the translation. Corrigendum 2 to English version of DIN EN 1917:2003-
3、04Berichtigung 2 zur englischen Fassung DIN EN 1917:2003-04Document comprises 10 pagesand reinforcedEinsteig- und Kontrollschchte aus Beton, Stahlfaserbeton und StahlbetonDIN EN 1917 Cor. 2:2008-08 2 This Corrigendum 2 is based on EN 1917:2002/AC:2008 and includes Corrigendum 1 based on EN 1917:2002
4、/ AC:2003. In the English version of DIN EN 1917:2003-04 the following corrections are to be made: 3.1.1 Manhole Add the following structures to Figure 1 and add “8 Capping unit” to the key: Key 1 Adjusting unit 2 Cover slab 3 Shaft unit 4 Base unit 5 Taper 6 Chamber unit 7 Reducing slab 8 Capping u
5、nit Figure 1 Typical structures 5.2.5 Conformity of proof (crack) load tested units Add the words “that have been” after “units” in the first sentence: “Reinforced concrete units that have been tested only to proof (crack) load in accordance with 6.4 or 6.5 and meeting the requirements of 5.2.3 or 5
6、.2.4 as appropriate conform to this European Standard.” 6.1 General Footnote a in Table 5 shall be changed as follows: Table 5 Summary of test requirements Vertical units Clause Requirement where specified Chamber and shaft units Base units Capping units Cover slabs, reducing slabs and tapers (reduc
7、ing units) Adjusting units 4.2.2.1 Drilled core strengtha T/R T/R T/RbT/R ameans only applicable to units whose conformity is not specified in this European Standard to be verified by routine performance testing, including the walls of capping units DIN EN 1917 Cor. 2:2008-08 3 6.8 Concrete strength
8、 in base units, capping unit walls, adjusting units and certain tapers Correct the conversion factor for drilled 50 mm 1 mm diameter cores from 0,9 into 1,07: “Tests shall be carried out on drilled cores with a height equal to their diameter 10 mm: when 100 mm 1 mm diameter cores are used, the resul
9、t shall be applied without any conversion factor; when 50 mm 1 mm diameter cores are used, a conversion factor of 1,07 shall be applied to the results.” DIN EN 1917 Cor. 2:2008-08 4 Annex A Figures A.1a, A.1b and A.2 shall be corrected by replacing the figures along with the above, as follows: Figur
10、e A.1a Figure A.1b Figure A.1 Crushing test on units in a horizontal arrangement DIN EN 1917 Cor. 2:2008-08 5 Dimensions in millimetres Key 1 Sheet material to permit any sliding or removable support 2 Low carbon steel facing plate, 330 mm 25 mm minimum cross-section Figure A.2 Crushing test on unit
11、s in a vertical arrangement Annex B: B.2 Apparatus Add requirements on application of test load and accuracy of testing machine in accordance with those that apply for the crushing test on chamber and shaft units and specify the dimensions of the steel or cast iron plates. Replace the first sentence
12、 as follows: “The apparatus shall consist of a testing machine capable of applying the full test load without shock or impact and with an accuracy of 3 % of the specified test load. The apparatus shall be equipped with steel or cast iron plates, through which the specified load is applied to the uni
13、t whilst it is supported around its perimeter. The dimensions of the steel or cast iron plate shall not exceed more than 125 mm the dimensions of the access opening. The width of beddings in contact with the unit shall correspond to the conditions that would be achieved in the structure for which th
14、e unit was designed.” DIN EN 1917 Cor. 2:2008-08 6 Annex B: B.4.2 Reinforced concrete units Replace the plan views of Figures B.1 and B.2 by the following: Dimensions in millimetres Figure B.1 Vertical strength test for capping units, cover slabs and reducing slabs DIN EN 1917 Cor. 2:2008-08 7 Dimen
15、sions in millimetres Figure B.2 Vertical strength test for certain tapers DIN EN 1917 Cor. 2:2008-08 8 Annex C: C.7.2 Watertightness during angular deflection Clarify the procedure for preventing the joint gap from closing by deleting the word “mean” in the 3rd sentence: “The connecting pipe(s) or a
16、daptor(s) shall be deflected to an angular deflection of 12 500/DN (or 12 500/WN, as appropriate to the shape of the bore of the connecting pipe(s) or adaptor(s) in millimetres per metre or 50 millimetres per metre, whichever is the smaller, taking care to ensure that no structural damage is caused.
17、 In the case of an egg-shaped connecting pipe or adaptor the deflection shall be in the vertical plane. During this operation the joint gap(s) shall be prevented from closing at any point by, for example, interposing at the appropriate place(s) a packing with a thickness equal to the value of the cl
18、earance stated in the factory documents.” Annex C: C.7.3 Watertightness under shear load Take into account that the pipe submitted to the watertightness test is not necessary completely filled with water: Add after the formula for Rsand the definition of Ww: “Where the pipe is completely filled with
19、 water the value of Rsshall be calculated according to the following formula: Rs= (Fs Ww/2) l1/(l1 as) 0, in kilonewtons where Wwis the weight of one unit filled with water, in kilonewtons Where the full length of the pipe barrel is not filled with water the formula shall be adjusted accordingly.” A
20、nnex D: D.4.1 Determination of mass of immersed sample m1Clarify the procedure of immerging the sample, by inserting the word “minimum” to the 2nd sentence: “The sample shall be brought to a temperature of 20 C 3 C, then immersed in tap water at the same temperature until a constant mass has been re
21、ached. This shall be achieved in stages by successively immersing the sample at intervals of one hour to approximately 1/3 of the height, approximately 2/3 of the height and the total height, with a minimum final water level of 20 mm above the top surface of the sample.” Annex G: Table G.1 Correct s
22、ampling procedures for concrete cover according to clause 5.2.2: by replacing the frequency 1 N for the initial type test by 1 S; by adding the word “using” before “covermeter” for the initial type test; by replacing the reference to “5.2.3 and 5.2.4” by the word “collapse” for the routine inspectio
23、n. Table G.1 Sampling procedures Clause Test when specified Initial type test Routine inspection 5.2.2 Concrete cover 1 S using every unit that has been type-tested to 5.2.3 or 5.2.4, or using covermeter for other units Every unit that has been tested to collapse and, using covermeter, 2 N/day DIN E
24、N 1917 Cor. 2:2008-08 9 Annex H: H.4: Figure H.1 Replace Figure H.1 by the following, where the symbol for the standard deviation in the last lozenge of the right branch of the flow chart was corrected ( ) and in the first line of the last lozenge in the right branch of the flow chart in the equitat
25、ion for the mean value xn, the minus () was replaced by plus (+). Figure H.1 Flow chart for inspection of ultimate (collapse) load on the basis of individual assessments (excluding inspection of unreinforced units using the Annex J option and basic inspection of reinforced units) DIN EN 1917 Cor. 2:
26、2008-08 10 In Annex J, Step 8 shall be as follows (“Table H.4” and not “Table H.3”): Step 8: Determine the acceptability as follows: Consider the measured value x of the bending tensile stress at the ultimate (collapse) load Fufrom the last n consecutive samples. Calculate the mean value x and the s
27、tandard deviation s of these n values. Calculate the lower quality statistic Q for the lower specification limit: sfxQ /)(des= where fdesis the lower specification limit for the bending tensile stress, then compare the quality statistic with the acceptability constant k obtained from the appropriate column in Table H.4. Interpolation for intermediate values of n is permissible. For acceptance, the quality statistic for the lower specification limit shall be greater than or equal to the acceptability constant.
