| 1. | General construction scheme of rigid - frame open spandrel aarch bridge 空腹式刚架拱桥总体施工方案 |
| 2. | Static and dynamic test of open spandrel rigid - framed arch bridge under vehicle loading 空腹式刚架拱桥的车辆荷载静动力试验 |
| 3. | Three - dimensional photoelastic test of beam - arch joint of open spandrel rigid - frame arch bridge 空腹式刚架拱桥梁拱节点三维光弹性试验研究 |
| 4. | Temperature measuring and study of open spandrel rigid - framed arch bridge with box cross section 箱型截面空腹式刚架拱桥温度场的实测与研究 |
| 5. | Spatial static behaviors analysis on beam - arch joint of new - type rigid - framed arch bridge with open spandrel 空腹式新型钢架拱桥梁拱节点空间受力分析 |
| 6. | General construction scheme of rigid - frame open spandrel arch of youxizhou minjiang river bridge in fuzhou 福州尤溪洲闽江大桥空腹式刚架拱总体施工方案 |
| 7. | Open spandrel rigid - framed arch bridge is the development of traditional rigid - framed arch bridge during its application in china . it utilizes and develops the mechanical performances and advantages of arch and rigid - frame 空腹式刚架拱桥是刚架拱桥在我国应用中的一个新发展,它在受力方面兼有拱和梁式刚架的特点,且充分利用和发挥了二者在力学性能上的各自特点和优势。 |
| 8. | Circular arch is rational for big rise - span ratio , but each has his strong point for small rise - span ratio . ( 3 ) the common used rise - span ratios are 1 / 6 - 1 / 12 . by the decrease of rise - span ratio , the internal forces are increasing linearly except of the moment of open spandrel beam ( 3 )空腹式刚架拱桥的矢跨比一般为1 6 1 12 ,随着矢跨比的减小,除了空腹段加劲梁的弯矩值线性减小外,其余截面的内力值均为线性增大。 |
| 9. | The conclusions are list as follows : ( 1 ) the mechanical properties of different parts of the bridge are as follows : arch is under the combined action of compression and bend ; open spandrel beam is under the combined action of tension and bend ; close spandrel beam is under the combined action of compression ( or tension ) and bend , but the axis force is small 本文得出的结论如下: ( 1 )空腹式刚架拱桥的受力兼具梁和拱的特点。结构各部位的受力特性如下:斜腿为压弯作用;空腹段梁体为拉弯作用;中跨实腹段梁体为压弯作用或拉弯作用,但轴向力较小,受力更接近纯弯构件。 |
| 10. | Through the finite element method , this paper compares some variable parameters such as the arch axis , the rise - span ratio and the ratio of spans , which influence the mechanical performances of open spandrel rigid - framed arch bridge . then it summarizes the mechanical properties of this bridge type and the optimal range of these parameters . the plexiglass model test validates the correctness of the finite element method used in this paper . the study will provide reference for the design of this new bridge type 本文采用有限元方法对影响空腹式刚架拱桥受力性能的主要参数:拱轴线型、矢跨比及跨径比进行了比较分析,总结了这种桥型的结构受力特点以及拱轴线型等参数的合理范围,为这种新桥型的工程设计提供参考,并通过有机玻璃模型试验验证了有限元分析的正确性。 |