水利水电工程毕业设计工作桥(2)

2019-04-15 11:53

河北工程大学毕业设计(水利水电工程)

⑵、闸室稳定计算

选取计算单元,计算作用于闸室的荷载,并按计算条件进行组合。分别按完建期,正常蓄水期,正常蓄水加特殊荷载组合三种工况进行闸室抗滑稳定性和地基承载力验算,并对地基应力分布状态及沉降差进行计算分析,判断水闸地基是否满足承载力、抗滑稳定和变形要求。 ⑶、闸基深层滑动及地基沉降量计算

根据设计资料给出的土壤物理力学特性指标,验算在荷载作用下基础是否发生带动一部分地基土向下游深层滑动,并确定是否进行地基沉降量计算。 4、两岸连接建筑物——岸、翼墙的结构型式,布置及稳定性计算

⑴、由闸室的结构尺寸及地基条件,确定岸、翼墙的平面布置型式,结构型式,

断面尺寸。

⑵、按完建期和正常蓄水期两种工况,对岸、翼墙的地基承载力,基底最大最小

应力比值及基底面抗滑稳定进行计算。

⑶、上游翼墙的防渗设施及下游翼墙的排水设施设计。 5、闸室结构计算 ⑴、闸墩应力分析

将闸墩视为固接于底板上的悬臂梁,以闸墩和底板的结合面作为计算控制面,分别按运用期(闸门关闭挡水)和检修期(一孔检修其它孔过水)两种工况,计算中墩墩底水平截面垂直正应力、剪应力、门槽应力、墩底水平截面侧向应力,并分析计算结果,进行配筋设计。 ⑵、底板应力分析

以闸门为界,将底板分为上下两部分,分别在两部分中央垂直水流方向取单宽板条进行分析。按完建期和运用期两种工况,计算作用于板条上的荷载。包括底板自重,中、边墩及上部结构重,水重 ,扬压力及不平衡剪力并对其进行分配,按弹性地基梁郭氏法查表计算,求得地基反力及计算板条各截面的内力,分析计算结果进行底板配筋设计。 6、工作桥结构设计

东风节制闸上装配式钢筋混凝土工作桥,分别对悬臂板、活动铺板、横梁、纵梁进行配筋计算,最后对支架进行配筋计算

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河北工程大学毕业设计(水利水电工程)

Design the leader

The sluice is irriated and arranged one of the main buildings among the project,it is a kind of low flood peak water conservancy project builing utilizing the gate to block water or sluice, can control the adjustable water level of the flow. While closing the gate, it can block the big conservation storage, the tide of the shelf or improving the water level in front of the floodgate, can release floodwater, drain flooded fields or supple water of the downstream river or the channel while opening the gate. We design the check gate built on plain and river mainly this time. The check gate generally crosses over the river to build, used in dry season conservation storage, redound water level for sluice fetch water, turn on floodgate release floodwater flood period. In canal is it prop up to lie in generally among the department, lateral canal divide into water mouth low reaches slightly, use for redounding the water level of branch canal, for propping up, the lateral canal fetch water This design is divided into six following parts mainly:

1.It is analysed that the materials and sluice pivot are fixed up. The materials that have already been offered are basic bases designed, in order to edable designing the achievement safe, suitable, economy, should be familiar with and analyse various kinds of materials at first, for instance topographical, geological situation, each about high Cheng, characteristic water level and corresponding flow, ect, then according to floodgate location, topography, geology, rivers, etc, terms and every building of function, characteristic, use demanding to confirm the pivot is decorateds of the pivot this, accomplish the structure compactness, rational, coordinates, beautiful. 2.Water conservancy is calculated:

Including floodgate hole design, is it can is it wash the design, prevention of seepage drain off water and design to defend to disappear mainly.

⑴The hole is designed in the floodgate give design flow definitely

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河北工程大学毕业设计(水利水电工程)

confirm according to sluice form and materials that draft above floodgate hole clear width and suitable floodgate hole count at first, then checking computations plan floodgate hole size pass flow satisfied with the requirement of releasing floodwater for the first time.

⑵Disappear and can defend and print designing for dispel water flow through energy of floodgate,is it disappear strength pool, sea overflow and defend and wash the trough to design.

①Disappear in the strength pool calculate in design water storage level under the terms, gate turn on in various kinds of form, operating mode of operation and hole of floodgate, one pair of holes is turned on symmetrically, three holes open and different flow of letting out while opening the height at the same time,confirm whether to need to set up and subdueing the strength pool or not. If is it design to need, want according to condition of can disappearing,is it disappear depth, strength of pool to calculate, thickness of the length baseplate and construction material used.

②The sea overflowing disappear strength pool can dispel rivers 50% energy,other energy all over the place to dispel from sea,according to different letting out amount of the sluice,confirm long degree and construction material of sea.

③ Defend and wash the trough calculate sea overflow end wash hole depth, is it wash trough section form and size to defend to design. ⑶The prevention of seepage drains off water and designs:

Draft the underground outline line at first, confirm the length tentatively, then confirm the floodgate room baseplate, length of the bedding and material sequentially, design and strain layer and drain off water in the hole position instead, calculate the base osmotic pressure of the floodgate finally, draw the distribution map of the osmotic pressure.

3.The floodgate room is decorated and floodgate room stability is calculated:

⑴Confirm the size of the outline line of floodgate room confirmed the floodgate room is always wide by the water conservancy condition, floodgate high Cheng, floodgate mound, gate, pattern, size and floodgate

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河北工程大学毕业设计(水利水电工程)

room top structure job bridge, traffic bridge, open and close pattern and size of the equipment of baseplate very.

⑵The floodgate room is calculated steadily choosing the unit of calculating, build one according to finishing, normal conservation storage one, normal conservation storage issue add special to is it make up three opeerating mode checking computations floodgate room resist slippery stability and ground bear the weight of strength checking computations to load, distribute state and subside to ground stress difference carry on computational analysis, judge sluice ground meet strength of bearing the weight of, is it slip steady and out of shape requirement to resist.

⑶The deep layer of floodgate room is slipped and the subsiding amount of ground is calculated according to design soil physics characteristic index that materials provide, checking computations foundation is it drive some ground soil slip to the low reaches to happen under loading function, confirm whether to carry on the subsiding amount of the ground to calculate or not.

4.Tow sides join building-bank,structure pattern, wing of wall, assign and the stability is calculated:

⑴By physical dimension and ground terms, floodgate of room, confirm bank, level, wing of wall assign the pattern and size of section. ⑵Building an two kinks of operating modes of one and normal conservation storage according to finishing, the ground on other bank, wing wall bears the weight of strength, basis heavy minimum stress ratio count bottom surface of the base is it calculate to go on steadily to slip to resist most.

⑶Facilities of prevention of seepage in the wing wall of the upper reaches and pumping equipment on the downstream wing wall are designed. 5.The structure of floodgate room is calculated: ⑴Mound stress analysis of the floodgate:

Regard as floodgate firm to connect cantilever beam at baseplate by mound, regard the combination surfaces of the mound of the floodgate and baseplate as and calculate the chain of command, separately according to use issue (gate is it block water to shut off ) and overhaul issue two

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河北工程大学毕业设计(水利水电工程)

kinds of operating modes , mound vertical direct stress of horizontal section, shearing stress, trough stress of the door, mound bottom level sectional side direction stress of mound bottom while calculating, analyse result of calculation, is it mix muscle design to go on. ⑵Stress analysis of the baseplate:

Make gate as the boundry, divide baseplate into two part from head to foot, fetch single wide lath analyse in two part central vertical rivers direction separately. Accord to finishing and building one and using the operating mode of an improved variety, calculate the load on function and lath. Including the baseplate conducts oneself with dignity,china, mound and top structure are heavy, raise pressure and uneven to cut strength and is it assign to go to it, France check the watch calculates according to elastic ground roof beam guo, try to get ground and calculation lath each sectional internal force against strength, is it carry on baseplate mix muscle design to analyse. 6.The level gate is designed: ⑴Leaf structure of the door.

①The layout of the structure of leaf of the door:Confirm door leaf various kinds of component structure need, figure and position , Ge Liang and pattern, way of connecting, connection of department, pattern of walking and supporting and roof beam.

②The panel is designed :On the premise of giving full play to the intensity of the panel, design one thickness of panel with rational economy. And check some and crooked intensity of conversion stress with crooked whole of the panel after the girder section is confirmed. ③Level roof beam once, carrying, the botttom roof beam is designed: Adopt the section steel.By the internal force of every component, choose the section of every roof beam, carry on intensity, rigidity checking computation.

④The girder is designed: Confirm girder figure, position, sectional form, the size of section, the section changes, wing reason welding seam design and some steady checking computations of girder.

⑤Vertical roof beam once and horizontal vertical connection department design:Confirm its pattern and position , is calculated and

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