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1、第 4期潘寿东:连续刚构桥 V型墩平衡支架法 施工技术研究1011 V(:c m)2 V0,V,(61 200k N)VV(61 200 kN)0,0,(61 200 kN)0,0,3.2 1,V15 m2,10 cm(),8 cm,25 mm 20mm,1 2 m,30,20,203.3 V,V,V,V,(1)V,(4m14 m,2 240 kN,20 kN/m2),102石 家 庄 铁 道 学 院 学 报第 18卷,V,(2)80%,V3()3.4 0V0,00(),(2)(3),80%V,6,1,200 kN,1 200 kNVV(2),200kN,61200 k N,4 m,200 k
2、 N,61 200 kN,200 kN,61200 kN,V,80%,44.1(1)(2),4V,V,V0,V,VV(3)C5026 kN/m3,E=3.5 104MPa;79 kN/m3,E=2.0 105MPa;0.3V =170MPa,=85MPa(4),89,4,k ,2mm,3 mm,4.2,V0,V,V,VV;Vy1=qL4/8 E I cos,Vy2=-p1L3/3 E I sin p1=3ql cot/8=3G1cot/8=3G1/8(=45),y1+y2=0,V,第 4期潘寿东:连续刚构桥 V型墩平衡支架法 施工技术研究1034 0,Pn0Gn,Pn=Gn cot=Gn(=4
3、5),V5(1)3 mm;(2)V0.1MPa;(3)V,;(4),;(5),;(6)V,V6 0(),VVV0,0V,V,V,V0,V0,V,(96%),V,250,t V0,200 t,4V,200,2,104石 家 庄 铁 道 学 院 学 报第 18卷 1,.V C.(5).:,1999ConstructionTechnologyofV-shapedP ierforContinuousRigidB ri dgewithBalancedT restleMethodPanShoudong1,2(1.School ofN avalArchitecture,Ocean and CivilEngi
4、neering,Shanghai Jiaotong University,Shanghai200030,China;2.The 3rd Co mpany of the 16th China Rail way Construction Bureau Group,Huzhou 313000,China)Abst ract:Based on the construction of Zongze Bridge atY i wu,a new technology-the balanced trestlemethod is put for ward for the construction ofV-sha
5、ped piers ofcontinuous rigid bridge and its structural calcu-lation model is explained.This construction m ethod has such advantages as advanced technology,econom icaluse ofmaterials,short construction ti me and easy operation,etc.Therefore it is of high reference value to theconstruction of si m il
6、ar bridges.Keywords:continuous rigid bridge;V-shaped pier;balanced trestle;structural calculationmodel(责任编辑 杨继成)(上接第 92页),;,20,25 2,304,1,.M.:,2002.146 149 2.M.:,1992.338 350A D iscussionontheW orkQuantitiesin H ighwayProjectQuotationLiXuepu(Education andHealth Depart ment,China Rail way Constructio
7、n Corporation,Beijing 100018,China)Abst ract:In highway project quotation,the calculation ofwork quantities isofpri mary i mportance.In thispaper,four kinds ofquantities of highway projects at the tendering stage are discussed,including their defin-itions,relations and calculationmethods,so as to provide a clearway of thinking in quantities calculation and in-crease the accuracy in quotation.Keywords:highway projects;quotation;designed quantities;bill of quantities;quantities for esti mation(责任编辑 杨继成)