查询词典 pointed arch

The numerical example shows that the coordinate of arch axis positioned by the method is reasonable and the moment of the main arch ring can be reduced effectively by the methods of average weight coefficient arid gauss weight coefficient.

算例分析说明求解的拱轴线坐标是合理的，应用平均加权和高斯加权方法可有效减少主拱圈弯矩。

The stability of the apron slabs on the arch ring of the inverted arch plunge pool is one of the key technologies to relate whether it can be safely operated under action of the high water head and the large discharge.

反拱水垫塘拱圈底板块稳定性是其在高水头和大流量作用下能否安全运用的关键技术之一。

The construction method of concreting layer by layer and segment by segment could reduce the use of steel and save construction cost,when concrete box arch ring was built cast-in-place with aid of arch centering.

混凝土箱型拱桥在无支墩拱式拱架上现浇施工时，采用分环分段的施工方法，可以利用拱圈与拱架的联合作用，减少钢拱架的用钢量，达到节省施工成本的目的。

Baishagou Bridge is a reinforced concrete box arch bridge with a net span of 150 m,its arch ring adoptes firstly suspended wagon cantilever casting construction in China.

白沙沟大桥是净跨150 m的钢筋混凝土箱形拱桥，拱圈是我国首次采用挂篮悬臂浇注节段法施工成拱的。

Experimental research on the vibration of single slab and multi ones set in the arch ring is carried out in the first time. Slab vibration divisions along the water flow are proposed and their lists are determined. Laws of vibration distribution along water flow, across the arch ring, in time zone and frequency one are established. The most dangerous condition to slab's stability is obtained by comparing slab vibration in the different downstream depth.

首次对反拱水垫塘拱圈弹性单、多底板块的振动特性进行了试验研究，提出了拱圈底板块沿流程的振动分区，给出了各振动区的界限，得到拱圈单、多底板块振动特征值沿流程及沿拱圈的分布规律，底板块振动的时域和频域特性，对不同下游水位的振动特性进行了比较，给出了对拱圈底板块的稳定最不利的条件。

Combined with the construction of Shuangtan Bridge Wu-Feng freeway,it introduces the successful finish the suspension construction technique of large-tonnage arch ring box by using the cable suspension steel reinforced concrete arch ring,and puts forward the safety program that should attention in construction.

结合巫奉高速公路双潭大桥施工，详细地介绍了采用缆索吊装钢筋混凝土主拱圈，成功地完成了大吨位主拱圈的吊装施工技术，并提出了施工中应注意的安全事项。

Taken the weighted energy function as the optimization objective, the method uses the spline curves to approach the pressure line of the main arch ring, and establishes the displacement influence matrix to calculate the adjustment quantity of the main arch ring.

该方法以加权能量函数作为优化目标，运用样条曲线逼近主拱圈压力线，并建立主拱圈位移影响矩阵来计算主拱圈的位移调整量。

The Zhaozhou Bridge is characterized by "open-shoulder", that is, in the arch of the two re-open on the shoulders of small arches, stone arch bridge structure is the most advanced one.

而赵州桥的特点是&敞肩式&，即在大拱的两肩上再辟小拱，是石拱桥结构中最先进的一种。

The introduction of common dieases and treatment measures of brick and stone masonry arch bridge in Guangxi region has some meaning of use for reference for the daily conservation management and maintenance of arch bridge.

通过介绍广西地区砖石圬工拱桥的常见病害及常用的病害处治技术，对加强拱桥的日常养护管理及维修有一定的借鉴意义。

The article uses the plane simplifying calculation method and the space finite element method to analyze the bearing characteristics of the arch rib when the concrete is poured into the steel pipe and the batten plate chamber of truss type steel pipe concrete tied arch bridge.

采用平面简化计算方法与空间有限元方法对桁架式钢管混凝土系杆拱桥灌注钢管及缀板腔内混凝土时拱肋的受力特性进行了分析。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。