| 1. | Experimental research of ultimate bearing capacity of high - strength bolt at high temperature 高强度螺栓连接在高温下极限承载力的试验研究 |
| 2. | Lower pole limit yi switch position exorbitance , lower pole limit yi switch position has got to under photoelectric blade above down hand in will place 下极限之开关位置过高,下极限之开关位置必须低于光电刀片之上下交会处。 |
| 3. | The standard is proposed to verdict the limit state of fire - suffered reinforced concrete component in the thesis , that is , losing stability , integrity and thermal insulation , and limit state of load bearing capacity is mainly discussed 本文提出钢筋混凝土结构构件火灾下极限状态的判别标准:失去稳定性、失去完整性、失去绝热性,并针对稳定性(承载力极限状态)进行研究计算。 |
| 4. | Has utmost signal and has no up or down chiang slow down signal , lawlessness adjudgment up or lower pole limit signal ; up either lower pole limit switch has not receive or switch breakdown ; up either down coercionary deceleration switch has not receive or switch breakdown 有极限信号而没有上或下强减速信号,无法判定上或下极限信号;上或下极限开关未接或开关故障;上或下强制减速开关未接或开关故障。 |
| 5. | Abstract : on the basis of site actual measurements , the safety of the combined mining of 16 and 17 thin seams under water body in the 4th mining area of zhaopo coal mine was evaluated by means of inversion analysis and numerical modeling . some relevant mining scheme and technical measures were worked out so as to ensure smooth production 文摘:以现场实测结果为基础,利用反演分析和数值模拟计算手段对赵坡煤矿四采区下山部分距老空区水体下极限距离的16 、 17薄煤层联合开采的安全性进行了评价,并制定了相应的开采方案和技术措施,保证了生产的顺利进行。 |
| 6. | The influence of the ducts for tendons or strands weakening the section of frame column is a question in the ppc design . a contrast experimental research of five beam - column joint with two one - way placed ducts and one without any ducts is presented . the results show that there is the influence of those ducts to the ultimate bearing capacity of the weakened section of the joint , when the total section area of the ducts is beyond 29 percent of the cross - section area of column under axes - pressure 但是较大预应力筋孔道给预应力框架柱造成较大的截面削弱,对框架柱的承载能力是否存在不利影响一直是设计人员担心的问题,对五个带有孔道的梁柱节点和一个没有孔道的梁柱节点进行了轴心受压状态下极限承载能力的对比试验。试验结果表明,预应力筋孔道面积超过梁柱截面面积的29时,在轴心受压状态下,单向留设孔道对框架梁柱节点的极限承载能力有一定影响。 |
| 7. | The calculation method of the utmost load of gray cast iron beam with rectangle section is obtained through the analysis of limit load behavior of the beam under the united action of bending and pulling , therefore the design method of limit load about forcing parts of cast iron pressure vessels is determined 通过分析灰口铸铁矩形截面梁在纯弯曲和拉弯组合作用下极限载荷行为,提出灰口铸铁矩形截面梁极限载荷的计算方法,由此确定灰口铸铁压力容器受压元件的极限设计方法。 |
| 8. | Will the joint area with dense hooped reinforcement enhance the bearing capacity of the frame column ? this paper illustrates the experiment on the contrast of the ultimate bearing capacity under the axes - pressure of both four frame columns with two - way placed ducts for tendons or strands ( two filled with grout and the other without grout , the two frame columns " hooped reinforcement is 6 . 5 @ 100 and the other is 6 . 5 @ 75 ) and one ( 6 . 5 @ 100 ) without any duct 对四个双向留设预应力筋孔道的框架柱(两个未灌浆和两个已灌浆,其中两个箍筋6 . 5 @ 100和两个箍筋6 . 5 @ 75 )和一个没有留设预应力筋孔道的框架柱(箍筋6 . 5 @ 100 )进行了轴心受压状态下极限承载能力的对比试验。 |