CAJ | 학술논문

以四川汉源县龙潭沟1号桥为例，介绍了上承式钢筋混凝土空腹箱型无铰拱桥的受力特点和相关设计参数的选用；采用三维空间程序对该桥进行了计算，验证了该结构的抗震性能和稳定性。提出了用军用梁施工拱肋的施工方案，并进行了详细的计算。该方案通过调节下弦杆长度能较好地拟合拱肋悬链线，并可通过横向增减梁片来适应拱肋宽度和拱架施工期间的内力要求。
이사천한원현룡담구1호교위례，개소료상승식강근혼응토공복상형무교공교적수력특점화상관설계삼수적선용；채용삼유공간정서대해교진행료계산，험증료해결구적항진성능화은정성。제출료용군용량시공공륵적시공방안，병진행료상세적계산。해방안통과조절하현간장도능교호지의합공륵현련선，병가통과횡향증감량편래괄응공륵관도화공가시공기간적내력요구。
Based on Longtangou Bridge in Sichuan province,the determination of different mechanical characteristics and design parameters of reinforced concrete deck hollow box hingeless arch bridge were described in this paper.A three dimensional FE program was employed to calculate the stability and seismic performance of this bridge.Military construction method was proposed and the detailed structure characteristics related to this method was carefully studied.There are two outstanding ad-vantages in this method,firstly,through modifying the length of the link chord the rib centenary pro-file could be better adj usted;secondly,by the measure of adding or reducing the beam panel the dif-ferent internal force during the whole construction phase can be dealt with.