By Damien L. Keogh
The definitive textual content within the box of Bridge Deck behaviour and research Bridge Deck research is an important reference for civil and structural engineers.It offers bridge designers with the data to appreciate the behaviour of bridge decks, to be accustomed to, and to appreciate a few of the numerical modelling strategies, to grasp which approach is so much appropriate. The publication covers the grillage analogy, dedicates a bankruptcy to the modelling and research of crucial bridge types and in addition offers counsel of the applying of the finite point technique.
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41(b). Uplift can also occur due to applied Fig. 42 Plan views showing articulation of crooked and curved bridges: (a) movement of crooked bridge; (b) articulation to accommodate movement; (c) movement of curved bridge; (d) articulation to accommodate movement Page 29 Fig. 43 Uplift of bearings due to traffic loading Fig. 44 Uplift of bearing due to transverse bending caused by differential thermal effects loading in right bridges if the span lengths are significantly different, as illustrated in Fig.
The corresponding forces and moments are then readily calculated. Methods of analysing to determine the effects of the equivalent loads are described in Chapter 3. 1: Differential temperature I The bridge beam illustrated in Fig. 3 is subjected to the differential increase in temperature shown. It is required to determine the effects of the temperature change if it is simply supported on one fixed and one sliding bearing. The coefficient of thermal expansion is 12×10−6 and the modulus of elasticity is 35000 N/mm2.
5 kN/m 2 elsewhere. The four wheels of the tandems together weigh 600 kN, 400 kN and 200 kN for Lanes 1, 2 and 3, respectively. In the British standard, ‘full’ HA lane loading consists of a uniform loading whose intensity varies with the loaded length and a ‘knife edge’ concentrated loading of 120 kN. For bridges with many notional lanes, a number of possibilities must be considered, a typical one being full HA in Lanes 1 and 2 combined with 60% of full HA in the other lanes as illustrated in Fig.